configs: add nucleo-l452re board files

This commit is contained in:
Juha Niskanen 2017-05-04 14:45:37 +03:00
parent 80c2d384bb
commit 0ce7815efe
18 changed files with 3732 additions and 0 deletions

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@ -810,6 +810,15 @@ config ARCH_BOARD_NUCLEO_F411RE
This is a minimal configuration that supports low-level test of the
Nucleo F411RE in the NuttX source tree.
config ARCH_BOARD_NUCLEO_L452RE
bool "STM32L452 Nucleo L452RE"
depends on ARCH_CHIP_STM32L452RE
select ARCH_HAVE_LEDS
select ARCH_HAVE_BUTTONS
select ARCH_HAVE_IRQBUTTONS
---help---
STMicro Nucleo L452RE board based on the STMicro STM32L452RET6 MCU.
config ARCH_BOARD_NUCLEO_L476RG
bool "STM32L476 Nucleo L476RG"
depends on ARCH_CHIP_STM32L476RG
@ -1557,6 +1566,7 @@ config ARCH_BOARD
default "nucleo-f303re" if ARCH_BOARD_NUCLEO_F303RE
default "nucleo-f334r8" if ARCH_BOARD_NUCLEO_F334R8
default "nucleo-f4x1re" if ARCH_BOARD_NUCLEO_F401RE || ARCH_BOARD_NUCLEO_F411RE
default "nucleo-l452re" if ARCH_BOARD_NUCLEO_L452RE
default "nucleo-l476rg" if ARCH_BOARD_NUCLEO_L476RG
default "nucleo-l496zg" if ARCH_BOARD_NUCLEO_L496ZG
default "qemu-i486" if ARCH_BOARD_QEMU_I486
@ -1876,6 +1886,9 @@ endif
if ARCH_BOARD_NUCLEO_F401RE || ARCH_BOARD_NUCLEO_F411RE
source "configs/nucleo-f4x1re/Kconfig"
endif
if ARCH_BOARD_NUCLEO_L452RE
source "configs/nucleo-l452re/Kconfig"
endif
if ARCH_BOARD_NUCLEO_L476RG
source "configs/nucleo-l476rg/Kconfig"
endif

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@ -0,0 +1,8 @@
#
# For a description of the syntax of this configuration file,
# see the file kconfig-language.txt in the NuttX tools repository.
#
if ARCH_BOARD_NUCLEO_L452RE
endif

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@ -0,0 +1,271 @@
Nucleo-L452RE README
====================
This README file discusses the port of NuttX to the STMicro Nucleo-L452RE
board. That board features the STM32L452RET6 MCU with 512KiB of FLASH
and 160KiB of SRAM.
Contents
========
- Status
- Nucleo-64 Boards
- LEDs
- Buttons
- Serial Console
- Configurations
Status
======
2017-05-04: The board now boots and the basic NSH configurations works
without problem.
Nucleo-64 Boards
================
The Nucleo-L452RE is a member of the Nucleo-64 board family. The Nucleo-64
is a standard board for use with several STM32 parts in the LQFP64 package.
Variants including:
Order code Targeted STM32
------------- --------------
NUCLEO-F030R8 STM32F030R8T6
NUCLEO-F070RB STM32F070RBT6
NUCLEO-F072RB STM32F072RBT6
NUCLEO-F091RC STM32F091RCT6
NUCLEO-F103RB STM32F103RBT6
NUCLEO-F302R8 STM32F302R8T6
NUCLEO-F303RE STM32F303RET6
NUCLEO-F334R8 STM32F334R8T6
NUCLEO-F401RE STM32F401RET6
NUCLEO-F410RB STM32F410RBT6
NUCLEO-F411RE STM32F411RET6
NUCLEO-F446RE STM32F446RET6
NUCLEO-L053R8 STM32L053R8T6
NUCLEO-L073RZ STM32L073RZT6
NUCLEO-L152RE STM32L152RET6
NUCLEO-L452RE STM32L452RET6
NUCLEO-L476RG STM32L476RGT6
LEDs
====
The Nucleo-64 board has one user controlable LED, User LD2. This green
LED is a user LED connected to Arduino signal D13 corresponding to STM32
I/O PA5 (PB13 on other some other Nucleo-64 boards).
- When the I/O is HIGH value, the LED is on
- When the I/O is LOW, the LED is off
These LEDs are not used by the board port unless CONFIG_ARCH_LEDS is
defined. In that case, the usage by the board port is defined in
include/board.h and src/stm32_autoleds.c. The LEDs are used to encode
OS-related events as follows when the red LED (PE24) is available:
SYMBOL Meaning LD2
------------------- ----------------------- -----------
LED_STARTED NuttX has been started OFF
LED_HEAPALLOCATE Heap has been allocated OFF
LED_IRQSENABLED Interrupts enabled OFF
LED_STACKCREATED Idle stack created ON
LED_INIRQ In an interrupt No change
LED_SIGNAL In a signal handler No change
LED_ASSERTION An assertion failed No change
LED_PANIC The system has crashed Blinking
LED_IDLE MCU is is sleep mode Not used
Thus if LD2, NuttX has successfully booted and is, apparently, running
normally. If LD2 is flashing at approximately 2Hz, then a fatal error
has been detected and the system has halted.
Buttons
=======
B1 USER: the user button is connected to the I/O PC13 (pin 2) of the STM32
microcontroller.
Serial Console
==============
USART1
------
Pins and Connectors:
RXD: PA10 D3 CN9 pin 3, CN10 pin 33
PB7 CN7 pin 21
TXD: PA9 D8 CN5 pin 1, CN10 pin 21
PB6 D10 CN5 pin 3, CN10 pin 17
NOTE: You may need to edit the include/board.h to select different USART1
pin selections.
TTL to RS-232 converter connection:
Nucleo CN10 STM32F072RB
----------- ------------
Pin 21 PA9 USART1_TX *Warning you make need to reverse RX/TX on
Pin 33 PA10 USART1_RX some RS-232 converters
Pin 20 GND
Pin 8 U5V
To configure USART1 as the console:
CONFIG_STM32_USART1=y
CONFIG_USART1_SERIALDRIVER=y
CONFIG_USART1_SERIAL_CONSOLE=y
CONFIG_USART1_RXBUFSIZE=256
CONFIG_USART1_TXBUFSIZE=256
CONFIG_USART1_BAUD=115200
CONFIG_USART1_BITS=8
CONFIG_USART1_PARITY=0
CONFIG_USART1_2STOP=0
USART2
------
Pins and Connectors:
RXD: PA3 To be provided
PA15
PD6
TXD: PA2
PA14
PD5
See "Virtual COM Port" and "RS-232 Shield" below.
USART3
------
Pins and Connectors:
RXD: PB11 To be provided
PC5
PC11
D9
TXD: PB10
PC4
PC10
D8
USART3
------
Pins and Connectors:
RXD: PA1 To be provided
PC11
TXD: PA0
PC10
Virtual COM Port
----------------
Yet another option is to use UART2 and the USB virtual COM port. This
option may be more convenient for long term development, but is painful
to use during board bring-up.
Solder Bridges. This configuration requires:
- SB62 and SB63 Open: PA2 and PA3 on STM32 MCU are disconnected to D1
and D0 (pin 7 and pin 8) on Arduino connector CN9 and ST Morpho
connector CN10.
- SB13 and SB14 Closed: PA2 and PA3 on STM32F103C8T6 (ST-LINK MCU) are
connected to PA3 and PA2 on STM32 MCU to have USART communication
between them. Thus SB61, SB62 and SB63 should be OFF.
Configuring USART2 is the same as given above.
115200 8N1 BAUD should be configure to interface with the Virtual COM
port.
Default
-------
As shipped, SB62 and SB63 are open and SB13 and SB14 closed, so the
virtual COM port is enabled.
RS-232 Shield
-------------
Supports a single RS-232 connected via
Nucleo STM32F4x1RE Shield
--------- --------------- --------
CN9 Pin 1 PA3 USART2_RXD RXD
CN9 Pin 2 PA2 USART2_TXD TXD
Support for this shield is enabled by selecting USART2 and configuring
SB13, 14, 62, and 63 as described above under "Virtual COM Port"
Configurations
==============
Information Common to All Configurations
----------------------------------------
Each configuration is maintained in a sub-directory and can be
selected as follow:
cd tools
./configure.sh nucleo-l452re/<subdir>
cd -
Before building, make sure the PATH environment variable includes the
correct path to the directory than holds your toolchain binaries.
And then build NuttX by simply typing the following. At the conclusion of
the make, the nuttx binary will reside in an ELF file called, simply, nuttx.
make oldconfig
make
The <subdir> that is provided above as an argument to the tools/configure.sh
must be is one of the following.
NOTES:
1. These configurations use the mconf-based configuration tool. To
change any of these configurations using that tool, you should:
a. Build and install the kconfig-mconf tool. See nuttx/README.txt
see additional README.txt files in the NuttX tools repository.
b. Execute 'make menuconfig' in nuttx/ in order to start the
reconfiguration process.
2. Unless stated otherwise, all configurations generate console
output on USART2, as described above under "Serial Console". The
elevant configuration settings are listed below:
CONFIG_STM32_USART2=y
CONFIG_STM32_USART2_SERIALDRIVER=y
CONFIG_STM32_USART=y
CONFIG_USART2_SERIALDRIVER=y
CONFIG_USART2_SERIAL_CONSOLE=y
CONFIG_USART2_RXBUFSIZE=256
CONFIG_USART2_TXBUFSIZE=256
CONFIG_USART2_BAUD=115200
CONFIG_USART2_BITS=8
CONFIG_USART2_PARITY=0
CONFIG_USART2_2STOP=0
3. All of these configurations are set up to build under Linux using the
"GNU Tools for ARM Embedded Processors" that is maintained by ARM
(unless stated otherwise in the description of the configuration).
https://launchpad.net/gcc-arm-embedded
That toolchain selection can easily be reconfigured using
'make menuconfig'. Here are the relevant current settings:
Build Setup:
CONFIG_HOST_LINUX=y : Linux environment
System Type -> Toolchain:
CONFIG_ARMV7M_TOOLCHAIN_GNU_EABIL=y : GNU ARM EABI toolchain
Configuration sub-directories
-----------------------------
nsh:
Configures the NuttShell (nsh) located at examples/nsh. This
configuration is focused on low level, command-line driver testing.

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@ -0,0 +1,272 @@
/************************************************************************************
* configs/nucleo-l452re/include/board.h
*
* Copyright (C) 2016 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
************************************************************************************/
#ifndef __CONFIGS_NUCLEO_L452RE_INCLUDE_BOARD_H
#define __CONFIGS_NUCLEO_L452RE_INCLUDE_BOARD_H
/************************************************************************************
* Included Files
************************************************************************************/
#include <nuttx/config.h>
#ifndef __ASSEMBLY__
# include <stdint.h>
#endif
#include <stm32l4.h>
/************************************************************************************
* Pre-processor Definitions
************************************************************************************/
/* Clocking *************************************************************************/
#if defined(CONFIG_ARCH_CHIP_STM32L452RE)
# include <arch/board/nucleo-l452re.h>
#endif
/* DMA Channel/Stream Selections ****************************************************/
/* Stream selections are arbitrary for now but might become important in the future
* is we set aside more DMA channels/streams.
*/
/* Values defined in arch/arm/src/stm32l4/chip/stm32l4x3xx_dma.h */
#define DMACHAN_SDMMC DMACHAN_SDMMC_1 /* 2 choices */
#define DMACHAN_SPI1_RX DMACHAN_SPI1_RX_1 /* 2 choices */
#define DMACHAN_SPI1_TX DMACHAN_SPI1_TX_1 /* 2 choices */
/* UART RX DMA configurations */
#define DMACHAN_USART1_RX DMACHAN_USART1_RX_2
/* Alternate function pin selections ************************************************/
/* USART1:
* RXD: PA10 CN9 pin 3, CN10 pin 33
* PB7 CN7 pin 21
* TXD: PA9 CN5 pin 1, CN10 pin 21
* PB6 CN5 pin 3, CN10 pin 17
*/
#if 1
# define GPIO_USART1_RX GPIO_USART1_RX_1 /* PA10 */
# define GPIO_USART1_TX GPIO_USART1_TX_1 /* PA9 */
#else
# define GPIO_USART1_RX GPIO_USART1_RX_2 /* PB7 */
# define GPIO_USART1_TX GPIO_USART1_TX_2 /* PB6 */
#endif
/* USART2: Connected to STLink Debug via PA2, PA3
* RXD: PA3 CN9 pin 1 (See SB13, 14, 62, 63). CN10 pin 37
* PD6
* TXD: PA2 CN9 pin 2 (See SB13, 14, 62, 63). CN10 pin 35
* PD5
*/
#define GPIO_USART2_RX GPIO_USART2_RX_1 /* PA3 */
#define GPIO_USART2_TX GPIO_USART2_TX_1 /* PA2 */
#define GPIO_USART2_RTS GPIO_USART2_RTS_2
#define GPIO_USART2_CTS GPIO_USART2_CTS_2
#define GPIO_USART3_RX GPIO_USART3_RX_3 /* PC11 */
#define GPIO_USART3_TX GPIO_USART3_TX_3 /* PC10 */
#define GPIO_UART4_RX GPIO_UART4_RX_1 /* PA1 */
#define GPIO_UART4_TX GPIO_UART4_TX_1 /* PA0 */
/* I2C
*
* The optional _GPIO configurations allow the I2C driver to manually
* reset the bus to clear stuck slaves. They match the pin configuration,
* but are normally-high GPIOs.
*/
#define GPIO_I2C1_SCL \
(GPIO_I2C1_SCL_2 | GPIO_OPENDRAIN | GPIO_SPEED_50MHz | GPIO_OUTPUT_SET)
#define GPIO_I2C1_SDA \
(GPIO_I2C1_SDA_2 | GPIO_OPENDRAIN | GPIO_SPEED_50MHz | GPIO_OUTPUT_SET)
#define GPIO_I2C1_SCL_GPIO \
(GPIO_OUTPUT | GPIO_OPENDRAIN | GPIO_SPEED_50MHz | GPIO_OUTPUT_SET | \
GPIO_PORTB | GPIO_PIN8)
#define GPIO_I2C1_SDA_GPIO \
(GPIO_OUTPUT | GPIO_OPENDRAIN | GPIO_SPEED_50MHz | GPIO_OUTPUT_SET | \
GPIO_PORTB | GPIO_PIN9)
#define GPIO_I2C2_SCL \
(GPIO_I2C2_SCL_1 | GPIO_OPENDRAIN | GPIO_SPEED_50MHz | GPIO_OUTPUT_SET)
#define GPIO_I2C2_SDA \
(GPIO_I2C2_SDA_1 | GPIO_OPENDRAIN | GPIO_SPEED_50MHz | GPIO_OUTPUT_SET)
#define GPIO_I2C2_SCL_GPIO \
(GPIO_OUTPUT | GPIO_OPENDRAIN | GPIO_SPEED_50MHz | GPIO_OUTPUT_SET | \
GPIO_PORTB | GPIO_PIN10)
#define GPIO_I2C2_SDA_GPIO \
(GPIO_OUTPUT | GPIO_OPENDRAIN | GPIO_SPEED_50MHz | GPIO_OUTPUT_SET | \
GPIO_PORTB | GPIO_PIN11)
/* SPI */
#define GPIO_SPI1_MISO GPIO_SPI1_MISO_1
#define GPIO_SPI1_MOSI GPIO_SPI1_MOSI_1
#define GPIO_SPI1_SCK GPIO_SPI1_SCK_1
#define GPIO_SPI2_MISO GPIO_SPI2_MISO_1
#define GPIO_SPI2_MOSI GPIO_SPI2_MOSI_1
#define GPIO_SPI2_SCK GPIO_SPI2_SCK_2
/* LEDs
*
* The Nucleo L452RE board provides a single user LED, LD2. LD2
* is the green LED connected to Arduino signal D13 corresponding to MCU I/O
* PA5 (pin 21) or PB13 (pin 34) depending on the STM32 target.
*
* - When the I/O is HIGH value, the LED is on.
* - When the I/O is LOW, the LED is off.
*/
/* LED index values for use with board_userled() */
#define BOARD_LD2 0
#define BOARD_NLEDS 1
/* LED bits for use with board_userled_all() */
#define BOARD_LD2_BIT (1 << BOARD_LD2)
/* These LEDs are not used by the board port unless CONFIG_ARCH_LEDS is
* defined. In that case, the usage by the board port is defined in
* include/board.h and src/stm32_autoleds.c. The LEDs are used to encode
* OS-related events as follows when the red LED (PE24) is available:
*
* SYMBOL Meaning LD2
* ------------------- ----------------------- -----------
* LED_STARTED NuttX has been started OFF
* LED_HEAPALLOCATE Heap has been allocated OFF
* LED_IRQSENABLED Interrupts enabled OFF
* LED_STACKCREATED Idle stack created ON
* LED_INIRQ In an interrupt No change
* LED_SIGNAL In a signal handler No change
* LED_ASSERTION An assertion failed No change
* LED_PANIC The system has crashed Blinking
* LED_IDLE MCU is is sleep mode Not used
*
* Thus if LD2, NuttX has successfully booted and is, apparently, running
* normally. If LD2 is flashing at approximately 2Hz, then a fatal error
* has been detected and the system has halted.
*/
#define LED_STARTED 0
#define LED_HEAPALLOCATE 0
#define LED_IRQSENABLED 0
#define LED_STACKCREATED 1
#define LED_INIRQ 1
#define LED_SIGNAL 2
#define LED_ASSERTION 2
#define LED_PANIC 1
/* Buttons
*
* B1 USER: the user button is connected to the I/O PC13 (pin 2) of the STM32
* microcontroller.
*/
#define BUTTON_USER 0
#define NUM_BUTTONS 1
#define BUTTON_USER_BIT (1 << BUTTON_USER)
/* Quadrature encoder
* Default is to use timer 5 (32-bit) and encoder on PA0/PA1
*/
#define GPIO_TIM2_CH1IN GPIO_TIM2_CH1IN_1
#define GPIO_TIM2_CH2IN GPIO_TIM2_CH2IN_1
#define GPIO_TIM3_CH1IN GPIO_TIM3_CH1IN_3
#define GPIO_TIM3_CH2IN GPIO_TIM3_CH2IN_3
#define GPIO_TIM5_CH1IN GPIO_TIM5_CH1IN_1
#define GPIO_TIM5_CH2IN GPIO_TIM5_CH2IN_1
/* PWM output for full bridge, uses config 1, because port E is N/A on QFP64
* CH1 | 1(A8) 2(E9)
* CH2 | 1(A9) 2(E11)
* CHN1 | 1(A7) 2(B13) 3(E8)
* CHN2 | 1(B0) 2(B14) 3(E10)
*/
#define GPIO_TIM1_CH1OUT GPIO_TIM1_CH1OUT_1
#define GPIO_TIM1_CH1NOUT GPIO_TIM1_CH1N_1
#define GPIO_TIM1_CH2OUT GPIO_TIM1_CH2OUT_1
#define GPIO_TIM1_CH2NOUT GPIO_TIM1_CH2N_1
/************************************************************************************
* Public Data
************************************************************************************/
#ifndef __ASSEMBLY__
#undef EXTERN
#if defined(__cplusplus)
#define EXTERN extern "C"
extern "C"
{
#else
#define EXTERN extern
#endif
/************************************************************************************
* Public Function Prototypes
************************************************************************************/
/************************************************************************************
* Name: stm32l4_boardinitialize
*
* Description:
* All STM32L4 architectures must provide the following entry point. This entry point
* is called early in the initialization -- after all memory has been configured
* and mapped but before any devices have been initialized.
*
************************************************************************************/
void stm32l4_boardinitialize(void);
#undef EXTERN
#if defined(__cplusplus)
}
#endif
#endif /* __ASSEMBLY__ */
#endif /* __CONFIGS_NUCLEO_L452RE_INCLUDE_BOARD_H */

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@ -0,0 +1,510 @@
/************************************************************************************
* configs/nucleo-l452re/include/nucleo-l452re.h
*
* Copyright (C) 2016 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
************************************************************************************/
#ifndef __CONFIGS_NUCLEO_L452RE_INCLUDE_NUCLEO_L452RE_H
#define __CONFIGS_NUCLEO_L452RE_INCLUDE_NUCLEO_L452RE_H
/************************************************************************************
* Included Files
************************************************************************************/
#include <nuttx/config.h>
#ifndef __ASSEMBLY__
# include <stdint.h>
#endif
/************************************************************************************
* Pre-processor Definitions
************************************************************************************/
#if 1
# define HSI_CLOCK_CONFIG /* HSI-16 clock configuration */
#elif 0
/* Make sure you installed one! */
# define HSE_CLOCK_CONFIG /* HSE with 8 MHz xtal */
#else
# define MSI_CLOCK_CONFIG /* MSI @ 4 MHz autotrimmed via LSE */
#endif
/* Clocking *************************************************************************/
#if defined(HSI_CLOCK_CONFIG)
/* The NUCLEOL452RE supports both HSE and LSE crystals (X2 and X3). However, as
* shipped, the X3 crystal is not populated. Therefore the Nucleo-L452RE
* will need to run off the 16MHz HSI clock, or the 32khz-synced MSI.
*
* System Clock source : PLL (HSI)
* SYSCLK(Hz) : 80000000 Determined by PLL configuration
* HCLK(Hz) : 80000000 (STM32L4_RCC_CFGR_HPRE) (Max 80 MHz)
* AHB Prescaler : 1 (STM32L4_RCC_CFGR_HPRE) (Max 80 MHz)
* APB1 Prescaler : 1 (STM32L4_RCC_CFGR_PPRE1) (Max 80 MHz)
* APB2 Prescaler : 1 (STM32L4_RCC_CFGR_PPRE2) (Max 80 MHz)
* HSI Frequency(Hz) : 16000000 (nominal)
* PLLM : 1 (STM32L4_PLLCFG_PLLM)
* PLLN : 10 (STM32L4_PLLCFG_PLLN)
* PLLP : 0 (STM32L4_PLLCFG_PLLP)
* PLLQ : 0 (STM32L4_PLLCFG_PLLQ)
* PLLR : 2 (STM32L4_PLLCFG_PLLR)
* PLLSAI1N : 12
* PLLSAI1Q : 4
* Flash Latency(WS) : 4
* Prefetch Buffer : OFF
* 48MHz for USB OTG FS, : Doable if required using PLLSAI1 or MSI
* SDIO and RNG clock
*/
/* HSI - 16 MHz RC factory-trimmed
* LSI - 32 KHz RC
* MSI - variable up to 48 MHz, synchronized to LSE
* HSE - not installed
* LSE - 32.768 kHz installed
*/
#define STM32L4_HSI_FREQUENCY 16000000ul
#define STM32L4_LSI_FREQUENCY 32000
#define STM32L4_LSE_FREQUENCY 32768
#define STM32L4_BOARD_USEHSI 1
/* XXX sysclk mux = pllclk */
/* XXX pll source mux = hsi */
/* REVISIT: Trimming of the HSI and MSI is not yet supported. */
/* Main PLL Configuration.
*
* Formulae:
*
* VCO input frequency = PLL input clock frequency / PLLM, 1 <= PLLM <= 8
* VCO output frequency = VCO input frequency × PLLN, 8 <= PLLN <= 86, frequency range 64 to 344 MHz
* PLL output P (SAI3) clock frequency = VCO frequency / PLLP, PLLP = 7, or 17, or 0 to disable
* PLL output Q (48M1) clock frequency = VCO frequency / PLLQ, PLLQ = 2, 4, 6, or 8, or 0 to disable
* PLL output R (CLK) clock frequency = VCO frequency / PLLR, PLLR = 2, 4, 6, or 8, or 0 to disable
*
* PLL output P is used for SAI
* PLL output Q is used for OTG FS, SDMMC, RNG
* PLL output R is used for SYSCLK
* PLLP = 0 (not used)
* PLLQ = 0 (not used)
* PLLR = 2
* PLLN = 10
* PLLM = 1
*
* We will configure like this
*
* PLL source is HSI
*
* PLL_REF = STM32L4_HSI_FREQUENCY / PLLM
* = 16,000,000 / 1
* = 16,000,000
*
* PLL_VCO = PLL_REF * PLLN
* = 16,000,000 * 10
* = 160,000,000
*
* PLL_CLK = PLL_VCO / PLLR
* = 160,000,000 / 2 = 80,000,000
* PLL_48M1 = disabled
* PLL_SAI3 = disabled
*
* ----------------------------------------
*
* PLLSAI1 Configuration
*
* The clock input and M divider are identical to the main PLL.
* However the multiplier and postscalers are independent.
* The PLLSAI1 is configured only if CONFIG_STM32L4_SAI1PLL is defined
*
* SAI1VCO input frequency = PLL input clock frequency
* SAI1VCO output frequency = SAI1VCO input frequency × PLLSAI1N, 8 <= PLLSAI1N <= 86, frequency range 64 to 344 MHz
* SAI1PLL output P (SAI1) clock frequency = SAI1VCO frequency / PLLSAI1P, PLLP = 7, or 17, or 0 to disable
* SAI1PLL output Q (48M2) clock frequency = SAI1VCO frequency / PLLSAI1Q, PLLQ = 2, 4, 6, or 8, or 0 to disable
* SAI1PLL output R (ADC1) clock frequency = SAI1VCO frequency / PLLSAI1R, PLLR = 2, 4, 6, or 8, or 0 to disable
*
* We will configure like this
*
* PLLSAI1 disabled
*
* ----------------------------------------
*
* PLLSAI2 Configuration
*
* The clock input and M divider are identical to the main PLL.
* However the multiplier and postscalers are independent.
* The PLLSAI2 is configured only if CONFIG_STM32L4_SAI2PLL is defined
*
* SAI2VCO input frequency = PLL input clock frequency
* SAI2VCO output frequency = SAI2VCO input frequency × PLLSAI2N, 8 <= PLLSAI1N <= 86, frequency range 64 to 344 MHz
* SAI2PLL output P (SAI2) clock frequency = SAI2VCO frequency / PLLSAI2P, PLLP = 7, or 17, or 0 to disable
* SAI2PLL output R (ADC2) clock frequency = SAI2VCO frequency / PLLSAI2R, PLLR = 2, 4, 6, or 8, or 0 to disable
*
* We will configure like this
*
* PLLSAI2 disabled
*
* ----------------------------------------
*
* TODO: The STM32L is a low power peripheral and all these clocks should be configurable at runtime.
*
* ----------------------------------------
*
* TODO These clock sources can be configured in Kconfig (this is not a board feature)
* USART1
* USART2
* USART3
* UART4
* UART5
* LPUART1
* I2C1
* I2C2
* I2C3
* LPTIM1
* LPTIM2
* SAI1
* SAI2
* CLK48
* ADC
* SWPMI
* DFSDM
*/
/* prescaler common to all PLL inputs; will be 1 (XXX source is implicitly
as per comment above HSI) */
#define STM32L4_PLLCFG_PLLM RCC_PLLCFG_PLLM(1)
/* 'main' PLL config; we use this to generate our system clock via the R
* output. We set it up as 16 MHz / 1 * 10 / 2 = 80 MHz
*
* XXX NOTE: currently the main PLL is implicitly turned on and is implicitly
* the system clock; this should be configurable since not all applications may
* want things done this way.
*/
#define STM32L4_PLLCFG_PLLN RCC_PLLCFG_PLLN(10)
#define STM32L4_PLLCFG_PLLP 0
#undef STM32L4_PLLCFG_PLLP_ENABLED
#define STM32L4_PLLCFG_PLLQ RCC_PLLCFG_PLLQ_2
#define STM32L4_PLLCFG_PLLQ_ENABLED
#define STM32L4_PLLCFG_PLLR RCC_PLLCFG_PLLR(2)
#define STM32L4_PLLCFG_PLLR_ENABLED
/* 'SAIPLL1' is used to generate the 48 MHz clock, since we can't
* do that with the main PLL's N value. We set N = 12, and enable
* the Q output (ultimately for CLK48) with /4. So,
* 16 MHz / 1 * 12 / 4 = 48 MHz
*
* XXX NOTE: currently the SAIPLL /must/ be explicitly selected in the
* menuconfig, or else all this is a moot point, and the various 48 MHz
* peripherals will not work (RNG at present). I would suggest removing
* that option from Kconfig altogether, and simply making it an option
* that is selected via a #define here, like all these other params.
*/
#define STM32L4_PLLSAI1CFG_PLLN RCC_PLLSAI1CFG_PLLN(12)
#define STM32L4_PLLSAI1CFG_PLLP 0
#undef STM32L4_PLLSAI1CFG_PLLP_ENABLED
#define STM32L4_PLLSAI1CFG_PLLQ RCC_PLLSAI1CFG_PLLQ_4
#define STM32L4_PLLSAI1CFG_PLLQ_ENABLED
#define STM32L4_PLLSAI1CFG_PLLR 0
#undef STM32L4_PLLSAI1CFG_PLLR_ENABLED
/* 'SAIPLL2' is not used in this application */
#define STM32L4_PLLSAI2CFG_PLLN RCC_PLLSAI2CFG_PLLN(8)
#define STM32L4_PLLSAI2CFG_PLLP 0
#undef STM32L4_PLLSAI2CFG_PLLP_ENABLED
#define STM32L4_PLLSAI2CFG_PLLR 0
#undef STM32L4_PLLSAI2CFG_PLLR_ENABLED
#define STM32L4_SYSCLK_FREQUENCY 80000000ul
/* CLK48 will come from PLLSAI1 (implicitly Q) */
#define STM32L4_USE_CLK48
#define STM32L4_CLK48_SEL RCC_CCIPR_CLK48SEL_PLLSAI1
/* enable the LSE oscillator, used automatically trim the MSI, and for RTC */
#define STM32L4_USE_LSE 1
/* AHB clock (HCLK) is SYSCLK (80MHz) */
#define STM32L4_RCC_CFGR_HPRE RCC_CFGR_HPRE_SYSCLK /* HCLK = SYSCLK / 1 */
#define STM32L4_HCLK_FREQUENCY STM32L4_SYSCLK_FREQUENCY
#define STM32L4_BOARD_HCLK STM32L4_HCLK_FREQUENCY /* Same as above, to satisfy compiler */
/* APB1 clock (PCLK1) is HCLK/1 (80MHz) */
#define STM32L4_RCC_CFGR_PPRE1 RCC_CFGR_PPRE1_HCLK /* PCLK1 = HCLK / 1 */
#define STM32L4_PCLK1_FREQUENCY (STM32L4_HCLK_FREQUENCY/1)
/* Timers driven from APB1 will be twice PCLK1 */
/* REVISIT : this can be configured */
#define STM32L4_APB1_TIM2_CLKIN (2*STM32L4_PCLK1_FREQUENCY)
#define STM32L4_APB1_TIM3_CLKIN (2*STM32L4_PCLK1_FREQUENCY)
#define STM32L4_APB1_TIM4_CLKIN (2*STM32L4_PCLK1_FREQUENCY)
#define STM32L4_APB1_TIM5_CLKIN (2*STM32L4_PCLK1_FREQUENCY)
#define STM32L4_APB1_TIM6_CLKIN (2*STM32L4_PCLK1_FREQUENCY)
#define STM32L4_APB1_TIM7_CLKIN (2*STM32L4_PCLK1_FREQUENCY)
/* APB2 clock (PCLK2) is HCLK (80MHz) */
#define STM32L4_RCC_CFGR_PPRE2 RCC_CFGR_PPRE2_HCLK /* PCLK2 = HCLK / 1 */
#define STM32L4_PCLK2_FREQUENCY (STM32L4_HCLK_FREQUENCY/1)
/* Timers driven from APB2 will be twice PCLK2 */
/* REVISIT : this can be configured */
#define STM32L4_APB2_TIM1_CLKIN (2*STM32L4_PCLK2_FREQUENCY)
#define STM32L4_APB2_TIM8_CLKIN (2*STM32L4_PCLK2_FREQUENCY)
/* Timer Frequencies, if APBx is set to 1, frequency is same to APBx
* otherwise frequency is 2xAPBx.
* Note: TIM1,8 are on APB2, others on APB1
*/
/* REVISIT : this can be configured */
/* TODO SDMMC */
#elif defined(HSE_CLOCK_CONFIG)
/* Use the HSE */
#define STM32L4_BOARD_USEHSE 1
/* XXX sysclk mux = pllclk */
/* XXX pll source mux = hse */
/* Prescaler common to all PLL inputs */
#define STM32L4_PLLCFG_PLLM RCC_PLLCFG_PLLM(1)
/* 'main' PLL config; we use this to generate our system clock */
#define STM32L4_PLLCFG_PLLN RCC_PLLCFG_PLLN(20)
#define STM32L4_PLLCFG_PLLP 0
#undef STM32L4_PLLCFG_PLLP_ENABLED
#define STM32L4_PLLCFG_PLLQ 0
#undef STM32L4_PLLCFG_PLLQ_ENABLED
#define STM32L4_PLLCFG_PLLR RCC_PLLCFG_PLLR_2
#define STM32L4_PLLCFG_PLLR_ENABLED
/* 'SAIPLL1' is used to generate the 48 MHz clock */
#define STM32L4_PLLSAI1CFG_PLLN RCC_PLLSAI1CFG_PLLN(12)
#define STM32L4_PLLSAI1CFG_PLLP 0
#undef STM32L4_PLLSAI1CFG_PLLP_ENABLED
#define STM32L4_PLLSAI1CFG_PLLQ RCC_PLLSAI1CFG_PLLQ_2
#define STM32L4_PLLSAI1CFG_PLLQ_ENABLED
#define STM32L4_PLLSAI1CFG_PLLR 0
#undef STM32L4_PLLSAI1CFG_PLLR_ENABLED
/* 'SAIPLL2' is not used in this application */
#define STM32L4_PLLSAI2CFG_PLLN RCC_PLLSAI2CFG_PLLN(8)
#define STM32L4_PLLSAI2CFG_PLLP 0
#undef STM32L4_PLLSAI2CFG_PLLP_ENABLED
#define STM32L4_PLLSAI2CFG_PLLR 0
#undef STM32L4_PLLSAI2CFG_PLLR_ENABLED
#define STM32L4_SYSCLK_FREQUENCY 80000000ul
/* Enable CLK48; get it from PLLSAI1 */
#define STM32L4_USE_CLK48
#define STM32L4_CLK48_SEL RCC_CCIPR_CLK48SEL_PLLSAI1
/* Enable LSE (for the RTC) */
#define STM32L4_USE_LSE 1
/* Configure the HCLK divisor (for the AHB bus, core, memory, and DMA */
#define STM32L4_RCC_CFGR_HPRE RCC_CFGR_HPRE_SYSCLK /* HCLK = SYSCLK / 1 */
#define STM32L4_HCLK_FREQUENCY STM32L4_SYSCLK_FREQUENCY
#define STM32L4_BOARD_HCLK STM32L4_HCLK_FREQUENCY /* Same as above, to satisfy compiler */
/* Configure the APB1 prescaler */
#define STM32L4_RCC_CFGR_PPRE1 RCC_CFGR_PPRE1_HCLK /* PCLK1 = HCLK / 1 */
#define STM32L4_PCLK1_FREQUENCY (STM32L4_HCLK_FREQUENCY/1)
#define STM32L4_APB1_TIM2_CLKIN (2*STM32L4_PCLK1_FREQUENCY)
#define STM32L4_APB1_TIM3_CLKIN (2*STM32L4_PCLK1_FREQUENCY)
#define STM32L4_APB1_TIM4_CLKIN (2*STM32L4_PCLK1_FREQUENCY)
#define STM32L4_APB1_TIM5_CLKIN (2*STM32L4_PCLK1_FREQUENCY)
#define STM32L4_APB1_TIM6_CLKIN (2*STM32L4_PCLK1_FREQUENCY)
#define STM32L4_APB1_TIM7_CLKIN (2*STM32L4_PCLK1_FREQUENCY)
/* Configure the APB2 prescaler */
#define STM32L4_RCC_CFGR_PPRE2 RCC_CFGR_PPRE2_HCLK /* PCLK2 = HCLK / 1 */
#define STM32L4_PCLK2_FREQUENCY (STM32L4_HCLK_FREQUENCY/1)
#define STM32L4_APB2_TIM1_CLKIN (2*STM32L4_PCLK2_FREQUENCY)
#define STM32L4_APB2_TIM8_CLKIN (2*STM32L4_PCLK2_FREQUENCY)
#elif defined(MSI_CLOCK_CONFIG)
/* Use the MSI; frequ = 4 MHz; autotrim from LSE */
#define STM32L4_BOARD_USEMSI 1
#define STM32L4_BOARD_MSIRANGE RCC_CR_MSIRANGE_4M
/* XXX sysclk mux = pllclk */
/* XXX pll source mux = msi */
/* prescaler common to all PLL inputs */
#define STM32L4_PLLCFG_PLLM RCC_PLLCFG_PLLM(1)
/* 'main' PLL config; we use this to generate our system clock */
#define STM32L4_PLLCFG_PLLN RCC_PLLCFG_PLLN(40)
#define STM32L4_PLLCFG_PLLP 0
#undef STM32L4_PLLCFG_PLLP_ENABLED
#define STM32L4_PLLCFG_PLLQ 0
#undef STM32L4_PLLCFG_PLLQ_ENABLED
#define STM32L4_PLLCFG_PLLR RCC_PLLCFG_PLLR_2
#define STM32L4_PLLCFG_PLLR_ENABLED
/* 'SAIPLL1' is used to generate the 48 MHz clock */
#define STM32L4_PLLSAI1CFG_PLLN RCC_PLLSAI1CFG_PLLN(24)
#define STM32L4_PLLSAI1CFG_PLLP 0
#undef STM32L4_PLLSAI1CFG_PLLP_ENABLED
#define STM32L4_PLLSAI1CFG_PLLQ RCC_PLLSAI1CFG_PLLQ_2
#define STM32L4_PLLSAI1CFG_PLLQ_ENABLED
#define STM32L4_PLLSAI1CFG_PLLR 0
#undef STM32L4_PLLSAI1CFG_PLLR_ENABLED
/* 'SAIPLL2' is not used in this application */
#define STM32L4_PLLSAI2CFG_PLLN RCC_PLLSAI2CFG_PLLN(8)
#define STM32L4_PLLSAI2CFG_PLLP 0
#undef STM32L4_PLLSAI2CFG_PLLP_ENABLED
#define STM32L4_PLLSAI2CFG_PLLR 0
#undef STM32L4_PLLSAI2CFG_PLLR_ENABLED
#define STM32L4_SYSCLK_FREQUENCY 80000000ul
/* Enable CLK48; get it from PLLSAI1 */
#define STM32L4_USE_CLK48
#define STM32L4_CLK48_SEL RCC_CCIPR_CLK48SEL_PLLSAI1
/* Enable LSE (for the RTC) */
#define STM32L4_USE_LSE 1
/* Configure the HCLK divisor (for the AHB bus, core, memory, and DMA */
#define STM32L4_RCC_CFGR_HPRE RCC_CFGR_HPRE_SYSCLK /* HCLK = SYSCLK / 1 */
#define STM32L4_HCLK_FREQUENCY STM32L4_SYSCLK_FREQUENCY
#define STM32L4_BOARD_HCLK STM32L4_HCLK_FREQUENCY /* Same as above, to satisfy compiler */
/* Configure the APB1 prescaler */
#define STM32L4_RCC_CFGR_PPRE1 RCC_CFGR_PPRE1_HCLK /* PCLK1 = HCLK / 1 */
#define STM32L4_PCLK1_FREQUENCY (STM32L4_HCLK_FREQUENCY/1)
#define STM32L4_APB1_TIM2_CLKIN (2*STM32L4_PCLK1_FREQUENCY)
#define STM32L4_APB1_TIM3_CLKIN (2*STM32L4_PCLK1_FREQUENCY)
#define STM32L4_APB1_TIM4_CLKIN (2*STM32L4_PCLK1_FREQUENCY)
#define STM32L4_APB1_TIM5_CLKIN (2*STM32L4_PCLK1_FREQUENCY)
#define STM32L4_APB1_TIM6_CLKIN (2*STM32L4_PCLK1_FREQUENCY)
#define STM32L4_APB1_TIM7_CLKIN (2*STM32L4_PCLK1_FREQUENCY)
/* Configure the APB2 prescaler */
#define STM32L4_RCC_CFGR_PPRE2 RCC_CFGR_PPRE2_HCLK /* PCLK2 = HCLK / 1 */
#define STM32L4_PCLK2_FREQUENCY (STM32L4_HCLK_FREQUENCY/1)
#define STM32L4_APB2_TIM1_CLKIN (2*STM32L4_PCLK2_FREQUENCY)
#define STM32L4_APB2_TIM8_CLKIN (2*STM32L4_PCLK2_FREQUENCY)
#endif
/* Timer Frequencies, if APBx is set to 1, frequency is same to APBx
* otherwise frequency is 2xAPBx.
* Note: TIM1,8,15,16,17 are on APB2, others on APB1
*/
#define BOARD_TIM1_FREQUENCY STM32L4_HCLK_FREQUENCY
#define BOARD_TIM2_FREQUENCY (STM32L4_HCLK_FREQUENCY / 2)
#define BOARD_TIM3_FREQUENCY (STM32L4_HCLK_FREQUENCY / 2)
#define BOARD_TIM4_FREQUENCY (STM32L4_HCLK_FREQUENCY / 2)
#define BOARD_TIM5_FREQUENCY (STM32L4_HCLK_FREQUENCY / 2)
#define BOARD_TIM6_FREQUENCY (STM32L4_HCLK_FREQUENCY / 2)
#define BOARD_TIM7_FREQUENCY (STM32L4_HCLK_FREQUENCY / 2)
#define BOARD_TIM8_FREQUENCY STM32L4_HCLK_FREQUENCY
#define BOARD_TIM15_FREQUENCY STM32L4_HCLK_FREQUENCY
#define BOARD_TIM16_FREQUENCY STM32L4_HCLK_FREQUENCY
#define BOARD_TIM17_FREQUENCY STM32L4_HCLK_FREQUENCY
#define BOARD_LPTIM1_FREQUENCY (STM32L4_HCLK_FREQUENCY / 2)
#define BOARD_LPTIM2_FREQUENCY (STM32L4_HCLK_FREQUENCY / 2)
/************************************************************************************
* Public Data
************************************************************************************/
#ifndef __ASSEMBLY__
#undef EXTERN
#if defined(__cplusplus)
#define EXTERN extern "C"
extern "C"
{
#else
#define EXTERN extern
#endif
/************************************************************************************
* Public Function Prototypes
************************************************************************************/
#undef EXTERN
#if defined(__cplusplus)
}
#endif
#endif /* __ASSEMBLY__ */
#endif /* __CONFIGS_NUCLEO_L452RE_INCLUDE_NUCLEO_L452RE_H */

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############################################################################
# configs/nucleo-l452re/nsh/Make.defs
#
# Copyright (C) 2014 Gregory Nutt. All rights reserved.
# Author: Gregory Nutt <gnutt@nuttx.org>
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in
# the documentation and/or other materials provided with the
# distribution.
# 3. Neither the name NuttX nor the names of its contributors may be
# used to endorse or promote products derived from this software
# without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
#
############################################################################
include ${TOPDIR}/.config
include ${TOPDIR}/tools/Config.mk
include ${TOPDIR}/arch/arm/src/armv7-m/Toolchain.defs
LDSCRIPT = l452re-flash.ld
ifeq ($(WINTOOL),y)
# Windows-native toolchains
DIRLINK = $(TOPDIR)/tools/copydir.sh
DIRUNLINK = $(TOPDIR)/tools/unlink.sh
MKDEP = $(TOPDIR)/tools/mknulldeps.sh
ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
else
# Linux/Cygwin-native toolchain
MKDEP = $(TOPDIR)/tools/mkdeps$(HOSTEXEEXT)
ARCHINCLUDES = -I. -isystem $(TOPDIR)/include
ARCHXXINCLUDES = -I. -isystem $(TOPDIR)/include -isystem $(TOPDIR)/include/cxx
ARCHSCRIPT = -T$(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)
endif
CC = $(CROSSDEV)gcc
CXX = $(CROSSDEV)g++
CPP = $(CROSSDEV)gcc -E
LD = $(CROSSDEV)ld
AR = $(ARCROSSDEV)ar rcs
NM = $(ARCROSSDEV)nm
OBJCOPY = $(CROSSDEV)objcopy
OBJDUMP = $(CROSSDEV)objdump
ARCHCCVERSION = ${shell $(CC) -v 2>&1 | sed -n '/^gcc version/p' | sed -e 's/^gcc version \([0-9\.]\)/\1/g' -e 's/[-\ ].*//g' -e '1q'}
ARCHCCMAJOR = ${shell echo $(ARCHCCVERSION) | cut -d'.' -f1}
ifeq ($(CONFIG_DEBUG_SYMBOLS),y)
ARCHOPTIMIZATION = -g
endif
ifneq ($(CONFIG_DEBUG_NOOPT),y)
ARCHOPTIMIZATION += $(MAXOPTIMIZATION) -fno-strict-aliasing -fno-strength-reduce -fomit-frame-pointer
endif
ARCHCFLAGS = -fno-builtin
ARCHCXXFLAGS = -fno-builtin -fno-exceptions -fcheck-new -fno-rtti
ARCHWARNINGS = -Wall -Wstrict-prototypes -Wshadow -Wundef
ARCHWARNINGSXX = -Wall -Wshadow -Wundef
ARCHDEFINES =
ARCHPICFLAGS = -fpic -msingle-pic-base -mpic-register=r10
CFLAGS = $(ARCHCFLAGS) $(ARCHWARNINGS) $(ARCHOPTIMIZATION) $(ARCHCPUFLAGS) $(ARCHINCLUDES) $(ARCHDEFINES) $(EXTRADEFINES) -pipe
CPICFLAGS = $(ARCHPICFLAGS) $(CFLAGS)
CXXFLAGS = $(ARCHCXXFLAGS) $(ARCHWARNINGSXX) $(ARCHOPTIMIZATION) $(ARCHCPUFLAGS) $(ARCHXXINCLUDES) $(ARCHDEFINES) $(EXTRADEFINES) -pipe
CXXPICFLAGS = $(ARCHPICFLAGS) $(CXXFLAGS)
CPPFLAGS = $(ARCHINCLUDES) $(ARCHDEFINES) $(EXTRADEFINES)
AFLAGS = $(CFLAGS) -D__ASSEMBLY__
NXFLATLDFLAGS1 = -r -d -warn-common
NXFLATLDFLAGS2 = $(NXFLATLDFLAGS1) -T$(TOPDIR)/binfmt/libnxflat/gnu-nxflat-pcrel.ld -no-check-sections
LDNXFLATFLAGS = -e main -s 2048
ASMEXT = .S
OBJEXT = .o
LIBEXT = .a
EXEEXT =
ifneq ($(CROSSDEV),arm-nuttx-elf-)
LDFLAGS += -nostartfiles -nodefaultlibs
endif
ifeq ($(CONFIG_DEBUG_SYMBOLS),y)
LDFLAGS += -g
endif
HOSTCC = gcc
HOSTINCLUDES = -I.
HOSTCFLAGS = -Wall -Wstrict-prototypes -Wshadow -Wundef -g -pipe
HOSTLDFLAGS =

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/****************************************************************************
* configs/nucleo-l452re/scripts/l452re-flash.ld
*
* Copyright (C) 2014 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
* Sebastien Lorquet <sebastien@lorquet.fr>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/* The STM32L452RE has 512Kb of FLASH beginning at address 0x0800:0000 and
* 160Kb of SRAM beginning at address 0x2000:0000. When booting from FLASH,
* FLASH memory is aliased to address 0x0000:0000 where the code expects to
* begin execution by jumping to the entry point in the 0x0800:0000 address
* range.
*/
MEMORY
{
flash (rx) : ORIGIN = 0x08000000, LENGTH = 512K
sram (rwx) : ORIGIN = 0x20000000, LENGTH = 160K
}
OUTPUT_ARCH(arm)
ENTRY(_stext)
SECTIONS
{
.text : {
_stext = ABSOLUTE(.);
*(.vectors)
*(.text .text.*)
*(.fixup)
*(.gnu.warning)
*(.rodata .rodata.*)
*(.gnu.linkonce.t.*)
*(.glue_7)
*(.glue_7t)
*(.got)
*(.gcc_except_table)
*(.gnu.linkonce.r.*)
_etext = ABSOLUTE(.);
} > flash
.init_section : {
_sinit = ABSOLUTE(.);
*(.init_array .init_array.*)
_einit = ABSOLUTE(.);
} > flash
.ARM.extab : {
*(.ARM.extab*)
} > flash
__exidx_start = ABSOLUTE(.);
.ARM.exidx : {
*(.ARM.exidx*)
} > flash
__exidx_end = ABSOLUTE(.);
_eronly = ABSOLUTE(.);
/* The STM32L452RE has 160Kb of SRAM beginning at the following address */
.data : {
_sdata = ABSOLUTE(.);
*(.data .data.*)
*(.gnu.linkonce.d.*)
CONSTRUCTORS
_edata = ABSOLUTE(.);
} > sram AT > flash
.bss : {
_sbss = ABSOLUTE(.);
*(.bss .bss.*)
*(.gnu.linkonce.b.*)
*(COMMON)
_ebss = ABSOLUTE(.);
} > sram
/* Stabs debugging sections. */
.stab 0 : { *(.stab) }
.stabstr 0 : { *(.stabstr) }
.stab.excl 0 : { *(.stab.excl) }
.stab.exclstr 0 : { *(.stab.exclstr) }
.stab.index 0 : { *(.stab.index) }
.stab.indexstr 0 : { *(.stab.indexstr) }
.comment 0 : { *(.comment) }
.debug_abbrev 0 : { *(.debug_abbrev) }
.debug_info 0 : { *(.debug_info) }
.debug_line 0 : { *(.debug_line) }
.debug_pubnames 0 : { *(.debug_pubnames) }
.debug_aranges 0 : { *(.debug_aranges) }
}

2
configs/nucleo-l452re/src/.gitignore vendored Normal file
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/.depend
/Make.dep

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############################################################################
# configs/nucleo-l452re/src/Makefile
#
# Copyright (C) 2017 Gregory Nutt. All rights reserved.
# Author: Gregory Nutt <gnutt@nuttx.org>
# Alan Carvalho de Assis <acassis@gmail.com>
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in
# the documentation and/or other materials provided with the
# distribution.
# 3. Neither the name NuttX nor the names of its contributors may be
# used to endorse or promote products derived from this software
# without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
#
############################################################################
-include $(TOPDIR)/Make.defs
ASRCS =
CSRCS = stm32_boot.c stm32_bringup.c stm32_spi.c
ifeq ($(CONFIG_ARCH_LEDS),y)
CSRCS += stm32_autoleds.c
else
CSRCS += stm32_userleds.c
endif
ifeq ($(CONFIG_ARCH_BUTTONS),y)
CSRCS += stm32_buttons.c
endif
ifeq ($(CONFIG_LIB_BOARDCTL),y)
CSRCS += stm32_appinit.c
endif
include $(TOPDIR)/configs/Board.mk

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/****************************************************************************
* configs/nucleo-l452re/src/nucleo-l452re.h
*
* Copyright (C) 2017 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
* Alan Carvalho de Assis <acassis@gmail.com>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
#ifndef __CONFIGS_NUCLEO_L452RE_SRC_NUCLEO_L452RE_H
#define __CONFIGS_NUCLEO_L452RE_SRC_NUCLEO_L452RE_H
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <nuttx/compiler.h>
#include <stdint.h>
#include "stm32l4_gpio.h"
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/* Configuration ************************************************************/
#define HAVE_PROC 1
#define HAVE_RTC_DRIVER 1
#define HAVE_MMCSD 1
#if !defined(CONFIG_FS_PROCFS)
# undef HAVE_PROC
#endif
#if defined(HAVE_PROC) && defined(CONFIG_DISABLE_MOUNTPOINT)
# warning Mountpoints disabled. No procfs support
# undef HAVE_PROC
#endif
/* Check if we can support the RTC driver */
#if !defined(CONFIG_RTC) || !defined(CONFIG_RTC_DRIVER)
# undef HAVE_RTC_DRIVER
#endif
#if !defined(CONFIG_STM32L4_SDIO) || !defined(CONFIG_MMCSD) || \
!defined(CONFIG_MMCSD_SDIO)
# undef HAVE_MMCSD
#endif
/* How many SPI modules does this chip support? */
#if STM32L4_NSPI < 1
# undef CONFIG_STM32L4_SPI1
# undef CONFIG_STM32L4_SPI2
# undef CONFIG_STM32L4_SPI3
#elif STM32L4_NSPI < 2
# undef CONFIG_STM32L4_SPI2
# undef CONFIG_STM32L4_SPI3
#elif STM32L4_NSPI < 3
# undef CONFIG_STM32L4_SPI3
#endif
/* Nucleo-L452RE GPIOs ******************************************************/
/* LED. User LD2: the green LED is a user LED connected to Arduino signal
* D13 corresponding to MCU I/O PA5 (pin 21) or PB13 (pin 34) depending on
* the STM32 target.
*
* - When the I/O is HIGH value, the LED is on.
* - When the I/O is LOW, the LED is off.
*/
#define GPIO_LD2 (GPIO_OUTPUT | GPIO_PUSHPULL | GPIO_SPEED_2MHz | \
GPIO_OUTPUT_CLEAR | GPIO_PORTA | GPIO_PIN5)
/* Button definitions *******************************************************/
/* B1 USER: the user button is connected to the I/O PC13 (pin 2) of the STM32
* microcontroller.
*/
#define MIN_IRQBUTTON BUTTON_USER
#define MAX_IRQBUTTON BUTTON_USER
#define NUM_IRQBUTTONS 1
#define GPIO_BTN_USER (GPIO_INPUT | GPIO_FLOAT | GPIO_EXTI | \
GPIO_PORTC | GPIO_PIN13)
/****************************************************************************
* Public Types
****************************************************************************/
/****************************************************************************
* Public data
****************************************************************************/
#ifndef __ASSEMBLY__
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: stm32_bringup
*
* Description:
* Perform architecture-specific initialization
*
* CONFIG_BOARD_INITIALIZE=y :
* Called from board_initialize().
*
* CONFIG_BOARD_INITIALIZE=n && CONFIG_LIB_BOARDCTL=y :
* Called from the NSH library
*
****************************************************************************/
int stm32_bringup(void);
#endif /* __ASSEMBLY__ */
#endif /* __CONFIGS_NUCLEO_L452RE_SRC_NUCLEO_L452RE_H */

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/****************************************************************************
* config/nucleo-l452re/src/stm32_appinit.c
*
* Copyright (C) 2017 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
* Alan Carvalho de Assis <acassis@gmail.com>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <stdint.h>
#include <nuttx/board.h>
#include "nucleo-l452re.h"
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: board_app_initialize
*
* Description:
* Perform application specific initialization. This function is never
* called directly from application code, but only indirectly via the
* (non-standard) boardctl() interface using the command BOARDIOC_INIT.
*
* Input Parameters:
* arg - The boardctl() argument is passed to the board_app_initialize()
* implementation without modification. The argument has no
* meaning to NuttX; the meaning of the argument is a contract
* between the board-specific initalization logic and the the
* matching application logic. The value cold be such things as a
* mode enumeration value, a set of DIP switch switch settings, a
* pointer to configuration data read from a file or serial FLASH,
* or whatever you would like to do with it. Every implementation
* should accept zero/NULL as a default configuration.
*
* Returned Value:
* Zero (OK) is returned on success; a negated errno value is returned on
* any failure to indicate the nature of the failure.
*
****************************************************************************/
int board_app_initialize(uintptr_t arg)
{
/* Did we already initialize via board_initialize()? */
#ifndef CONFIG_BOARD_INITIALIZE
return stm32_bringup();
#else
return OK;
#endif
}

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/****************************************************************************
* configs/nucleo-l452re/src/stm32_autoleds.c
*
* Copyright (C) 2017 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <stdint.h>
#include <stdbool.h>
#include <debug.h>
#include <nuttx/board.h>
#include <arch/board/board.h>
#include "chip.h"
#include "up_arch.h"
#include "up_internal.h"
#include "stm32l4_gpio.h"
#include "nucleo-l452re.h"
#ifdef CONFIG_ARCH_LEDS
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: board_autoled_initialize
****************************************************************************/
void board_autoled_initialize(void)
{
/* Configure LD2 GPIO for output */
stm32l4_configgpio(GPIO_LD2);
}
/****************************************************************************
* Name: board_autoled_on
****************************************************************************/
void board_autoled_on(int led)
{
if (led == 1)
{
stm32l4_gpiowrite(GPIO_LD2, true);
}
}
/****************************************************************************
* Name: board_autoled_off
****************************************************************************/
void board_autoled_off(int led)
{
if (led == 1)
{
stm32l4_gpiowrite(GPIO_LD2, false);
}
}
#endif /* CONFIG_ARCH_LEDS */

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/************************************************************************************
* configs/nucleo-l452re/src/stm32_boot.c
*
* Copyright (C) 2017 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
* Alan Carvalho de Assis <acassis@gmail.com>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
************************************************************************************/
/************************************************************************************
* Included Files
************************************************************************************/
#include <nuttx/config.h>
#include <debug.h>
#include <nuttx/board.h>
#include <arch/board/board.h>
#include "up_arch.h"
#include "nucleo-l452re.h"
/************************************************************************************
* Public Functions
************************************************************************************/
/************************************************************************************
* Name: stm32l4_boardinitialize
*
* Description:
* All STM32 architectures must provide the following entry point. This entry point
* is called early in the intitialization -- after all memory has been configured
* and mapped but before any devices have been initialized.
*
************************************************************************************/
void stm32l4_boardinitialize(void)
{
#ifdef CONFIG_ARCH_LEDS
/* Configure on-board LEDs if LED support has been selected. */
board_autoled_initialize();
#endif
}
/****************************************************************************
* Name: board_initialize
*
* Description:
* If CONFIG_BOARD_INITIALIZE is selected, then an additional
* initialization call will be performed in the boot-up sequence to a
* function called board_initialize(). board_initialize() will be
* called immediately after up_initialize() is called and just before the
* initial application is started. This additional initialization phase
* may be used, for example, to initialize board-specific device drivers.
*
****************************************************************************/
#ifdef CONFIG_BOARD_INITIALIZE
void board_initialize(void)
{
/* Perform board-specific initialization here if so configured */
(void)stm32_bringup();
}
#endif

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/****************************************************************************
* config/nucleo-l452re/src/stm32_bringup.c
*
* Copyright (C) 2017 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <sys/mount.h>
#include <sys/types.h>
#include <debug.h>
#include <nuttx/i2c/i2c_master.h>
#include "stm32l4_i2c.h"
#include "nucleo-l452re.h"
/****************************************************************************
* Pre-processor Defintiionis
****************************************************************************/
#undef HAVE_I2C_DRIVER
#if defined(CONFIG_STM32L4_I2C1) && defined(CONFIG_I2C_DRIVER)
# define HAVE_I2C_DRIVER 1
#endif
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: stm32_bringup
*
* Description:
* Perform architecture-specific initialization
*
* CONFIG_BOARD_INITIALIZE=y :
* Called from board_initialize().
*
* CONFIG_BOARD_INITIALIZE=n && CONFIG_LIB_BOARDCTL=y :
* Called from the NSH library
*
****************************************************************************/
int stm32_bringup(void)
{
#ifdef HAVE_I2C_DRIVER
FAR struct i2c_master_s *i2c;
#endif
int ret;
#ifdef CONFIG_FS_PROCFS
/* Mount the procfs file system */
ret = mount(NULL, "/proc", "procfs", 0, NULL);
if (ret < 0)
{
ferr("ERROR: Failed to mount procfs at /proc: %d\n", ret);
}
#endif
#ifdef HAVE_I2C_DRIVER
/* Get the I2C lower half instance */
i2c = stm32l4_i2cbus_initialize(1);
if (i2c == NULL)
{
i2cerr("ERROR: Initialize I2C1: %d\n", ret);
}
else
{
/* Register the I2C character driver */
ret = i2c_register(i2c, 1);
if (ret < 0)
{
i2cerr("ERROR: Failed to register I2C1 device: %d\n", ret);
}
}
#endif
UNUSED(ret);
return OK;
}

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/****************************************************************************
* configs/nucleo-l452re/src/stm32_buttons.c
*
* Copyright (C) 2017 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <stdint.h>
#include <stdbool.h>
#include <errno.h>
#include <nuttx/arch.h>
#include <nuttx/board.h>
#include <arch/board/board.h>
#include "stm32l4_gpio.h"
#include "nucleo-l452re.h"
#ifdef CONFIG_ARCH_BUTTONS
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: board_button_initialize
*
* Description:
* board_button_initialize() must be called to initialize button resources.
* After that, board_buttons() may be called to collect the current state
* of all buttons or board_button_irq() may be called to register button
* interrupt handlers.
*
****************************************************************************/
void board_button_initialize(void)
{
/* Configure the single button as an input. NOTE that EXTI interrupts are
* also configured for the pin.
*/
stm32l4_configgpio(GPIO_BTN_USER);
}
/****************************************************************************
* Name: board_buttons
****************************************************************************/
uint32_t board_buttons(void)
{
/* Check that state of each USER button. A LOW value means that the key is
* pressed.
*/
bool released = stm32l4_gpioread(GPIO_BTN_USER);
return !released;
}
/************************************************************************************
* Button support.
*
* Description:
* board_button_initialize() must be called to initialize button resources. After
* that, board_buttons() may be called to collect the current state of all
* buttons or board_button_irq() may be called to register button interrupt
* handlers.
*
* After board_button_initialize() has been called, board_buttons() may be called to
* collect the state of all buttons. board_buttons() returns an 32-bit bit set
* with each bit associated with a button. See the BUTTON_*_BIT
* definitions in board.h for the meaning of each bit.
*
* board_button_irq() may be called to register an interrupt handler that will
* be called when a button is depressed or released. The ID value is a
* button enumeration value that uniquely identifies a button resource. See the
* BUTTON_* definitions in board.h for the meaning of enumeration
* value.
*
************************************************************************************/
#ifdef CONFIG_ARCH_IRQBUTTONS
int board_button_irq(int id, xcpt_t irqhandler, FAR void *arg)
{
int ret = -EINVAL;
if (id == BUTTON_USER)
{
ret = stm32l4_gpiosetevent(GPIO_BTN_USER, true, true, true, irqhandler, arg);
}
return ret;
}
#endif
#endif /* CONFIG_ARCH_BUTTONS */

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/****************************************************************************
* configs/nucleo-l452re/src/stm32_spi.c
*
* Copyright (C) 2014 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/************************************************************************************
* Included Files
************************************************************************************/
#include <nuttx/config.h>
#include <stdint.h>
#include <stdbool.h>
#include <debug.h>
#include <errno.h>
#include <nuttx/spi/spi.h>
#include <arch/board/board.h>
#include <up_arch.h>
#include <chip.h>
#include <stm32l4.h>
#include "nucleo-l452re.h"
#if defined(CONFIG_STM32L4_SPI1) || defined(CONFIG_STM32L4_SPI2) || defined(CONFIG_STM32L4_SPI3)
/************************************************************************************
* Public Data
************************************************************************************/
/* Global driver instances */
#ifdef CONFIG_STM32L4_SPI1
struct spi_dev_s *g_spi1;
#endif
#ifdef CONFIG_STM32L4_SPI2
struct spi_dev_s *g_spi2;
#endif
/************************************************************************************
* Public Functions
************************************************************************************/
/************************************************************************************
* Name: stm32l4_spiinitialize
*
* Description:
* Called to configure SPI chip select GPIO pins.
*
************************************************************************************/
void weak_function stm32l4_spiinitialize(void)
{
#ifdef CONFIG_STM32L4_SPI1
/* Configure SPI-based devices */
g_spi1 = stm32l4_spibus_initialize(1);
if (!g_spi1)
{
spierr("ERROR: FAILED to initialize SPI port 1\n");
}
#ifdef HAVE_MMCSD
stm32l4_configgpio(GPIO_SPI_CS_SD_CARD);
#endif
#endif
#ifdef CONFIG_STM32L4_SPI2
/* Configure SPI-based devices */
g_spi2 = stm32l4_spibus_initialize(2);
if (!g_spi2)
{
spierr("ERROR: FAILED to initialize SPI port 1\n");
}
#endif
}
/****************************************************************************
* Name: stm32l4_spi1/2/3select and stm32l4_spi1/2/3status
*
* Description:
* The external functions, stm32l4_spi1/2/3select and stm32l4_spi1/2/3status must be
* provided by board-specific logic. They are implementations of the select
* and status methods of the SPI interface defined by struct spi_ops_s (see
* include/nuttx/spi/spi.h). All other methods (including up_spiinitialize())
* are provided by common STM32 logic. To use this common SPI logic on your
* board:
*
* 1. Provide logic in stm32l4_boardinitialize() to configure SPI chip select
* pins.
* 2. Provide stm32l4_spi1/2/3select() and stm32l4_spi1/2/3status() functions in your
* board-specific logic. These functions will perform chip selection and
* status operations using GPIOs in the way your board is configured.
* 3. Add a calls to up_spiinitialize() in your low level application
* initialization logic
* 4. The handle returned by up_spiinitialize() may then be used to bind the
* SPI driver to higher level logic (e.g., calling
* mmcsd_spislotinitialize(), for example, will bind the SPI driver to
* the SPI MMC/SD driver).
*
****************************************************************************/
#ifdef CONFIG_STM32L4_SPI1
void stm32l4_spi1select(FAR struct spi_dev_s *dev, uint32_t devid, bool selected)
{
spiinfo("devid: %d CS: %s\n", (int)devid, selected ? "assert" : "de-assert");
#ifdef HAVE_MMCSD
if (devid == SPIDEV_MMCSD(0))
{
stm32l4_gpiowrite(GPIO_SPI_CS_SD_CARD, !selected);
}
#endif
}
uint8_t stm32l4_spi1status(FAR struct spi_dev_s *dev, uint32_t devid)
{
return 0;
}
#endif
#ifdef CONFIG_STM32L4_SPI2
void stm32l4_spi2select(FAR struct spi_dev_s *dev, uint32_t devid, bool selected)
{
spiinfo("devid: %d CS: %s\n", (int)devid, selected ? "assert" : "de-assert");
}
uint8_t stm32l4_spi2status(FAR struct spi_dev_s *dev, uint32_t devid)
{
return 0;
}
#endif
#ifdef CONFIG_STM32L4_SPI3
void stm32l4_spi3select(FAR struct spi_dev_s *dev, uint32_t devid, bool selected)
spiinfo("devid: %d CS: %s\n", (int)devid, selected ? "assert" : "de-assert");
}
uint8_t stm32l4_spi3status(FAR struct spi_dev_s *dev, uint32_t devid)
{
return 0;
}
#endif
/****************************************************************************
* Name: stm32l4_spi1cmddata
*
* Description:
* Set or clear the SH1101A A0 or SD1306 D/C n bit to select data (true)
* or command (false). This function must be provided by platform-specific
* logic. This is an implementation of the cmddata method of the SPI
* interface defined by struct spi_ops_s (see include/nuttx/spi/spi.h).
*
* Input Parameters:
*
* spi - SPI device that controls the bus the device that requires the CMD/
* DATA selection.
* devid - If there are multiple devices on the bus, this selects which one
* to select cmd or data. NOTE: This design restricts, for example,
* one one SPI display per SPI bus.
* cmd - true: select command; false: select data
*
* Returned Value:
* None
*
****************************************************************************/
#ifdef CONFIG_SPI_CMDDATA
#ifdef CONFIG_STM32L4_SPI1
int stm32l4_spi1cmddata(FAR struct spi_dev_s *dev, uint32_t devid, bool cmd)
{
return OK;
}
#endif
#ifdef CONFIG_STM32L4_SPI2
int stm32l4_spi2cmddata(FAR struct spi_dev_s *dev, uint32_t devid, bool cmd)
{
return OK;
}
#endif
#ifdef CONFIG_STM32L4_SPI3
int stm32l4_spi3cmddata(FAR struct spi_dev_s *dev, uint32_t devid, bool cmd)
{
return OK;
}
#endif
#endif /* CONFIG_SPI_CMDDATA */
#endif /* CONFIG_STM32L4_SPI1 || CONFIG_STM32L4_SPI2 || CONFIG_STM32L4_SPI3 */

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@ -0,0 +1,217 @@
/****************************************************************************
* configs/nucleo-l452re/src/stm32_userleds.c
*
* Copyright (C) 2017 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <stdint.h>
#include <stdbool.h>
#include <debug.h>
#include <arch/board/board.h>
#include <nuttx/power/pm.h>
#include "chip.h"
#include "up_arch.h"
#include "up_internal.h"
#include "stm32l4_gpio.h"
#include "nucleo-l452re.h"
#ifndef CONFIG_ARCH_LEDS
/****************************************************************************
* Private Function Prototypes
****************************************************************************/
/* LED Power Management */
#ifdef CONFIG_PM
static void led_pm_notify(struct pm_callback_s *cb, int domain,
enum pm_state_e pmstate);
static int led_pm_prepare(struct pm_callback_s *cb, int domain,
enum pm_state_e pmstate);
#endif
/****************************************************************************
* Private Data
****************************************************************************/
#ifdef CONFIG_PM
static struct pm_callback_s g_ledscb =
{
.notify = led_pm_notify,
.prepare = led_pm_prepare,
};
#endif
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Name: led_pm_notify
*
* Description:
* Notify the driver of new power state. This callback is called after
* all drivers have had the opportunity to prepare for the new power state.
*
****************************************************************************/
#ifdef CONFIG_PM
static void led_pm_notify(struct pm_callback_s *cb, int domain,
enum pm_state_e pmstate)
{
switch (pmstate)
{
case(PM_NORMAL):
{
/* Restore normal LEDs operation */
}
break;
case(PM_IDLE):
{
/* Entering IDLE mode - Turn leds off */
}
break;
case(PM_STANDBY):
{
/* Entering STANDBY mode - Logic for PM_STANDBY goes here */
}
break;
case(PM_SLEEP):
{
/* Entering SLEEP mode - Logic for PM_SLEEP goes here */
}
break;
default:
{
/* Should not get here */
}
break;
}
}
#endif
/****************************************************************************
* Name: led_pm_prepare
*
* Description:
* Request the driver to prepare for a new power state. This is a warning
* that the system is about to enter into a new power state. The driver
* should begin whatever operations that may be required to enter power
* state. The driver may abort the state change mode by returning a
* non-zero value from the callback function.
*
****************************************************************************/
#ifdef CONFIG_PM
static int led_pm_prepare(struct pm_callback_s *cb, int domain,
enum pm_state_e pmstate)
{
/* No preparation to change power modes is required by the LEDs driver.
* We always accept the state change by returning OK.
*/
return OK;
}
#endif
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: board_userled_initialize
****************************************************************************/
void board_userled_initialize(void)
{
/* Configure LD2 GPIO for output */
stm32l4_configgpio(GPIO_LD2);
}
/****************************************************************************
* Name: board_userled
****************************************************************************/
void board_userled(int led, bool ledon)
{
if (led == 1)
{
stm32l4_gpiowrite(GPIO_LD2, ldeon);
}
}
/****************************************************************************
* Name: board_userled_all
****************************************************************************/
void board_userled_all(uint8_t ledset)
{
if (led == 1)
{
stm32l4_gpiowrite(GPIO_LD2, (ledset & BOARD_LD2_BIT) != 0);
}
}
/****************************************************************************
* Name: stm32l4_led_pminitialize
****************************************************************************/
#ifdef CONFIG_PM
void stm32l4_led_pminitialize(void)
{
/* Register to receive power management callbacks */
int ret = pm_register(&g_ledscb);
DEBUGASSERT(ret == OK);
UNUSED(ret);
}
#endif /* CONFIG_PM */
#endif /* !CONFIG_ARCH_LEDS */