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Clear Pending Interrupts. Responds to keypress yay!

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Lee Lup Yuen 2023-11-25 11:51:18 +08:00
parent 1326447727
commit 6278a647ef
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README.md
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@ -3296,6 +3296,32 @@ interrupt.
TODO: Fix this for Ox64 NuttX
After Clearing the Pending Interrupts, [NuttX responds to Key Presses yay!](https://gist.github.com/lupyuen/4e8ca1f0c0c2bd3b22a8b63f098abdd5)
```text
NuttShell (NSH) NuttX-12.0.3
riscv_dispatch_irq: Clear Pending Interrupts, irq=45, claim=0
PLIC Interrupt Pending (0xe0001000):
0000 00 00 00 00 00 00 00 00 ........
nsh> riscv_dispatch_irq: Clear Pending Interrupts, irq=45, claim=0
PLIC Interrupt Pending (0xe0001000):
0000 00 00 00 00 00 00 00 00 ........
riscv_dispatch_irq: Clear Pending Interrupts, irq=45, claim=0
PLIC Interrupt Pending (0xe0001000):
0000 00 00 00 00 00 00 00 00 ........
nx_start: CPU0: Beginning Idle Loop
riscv_dispatch_irq: Clear Pending Interrupts, irq=45, claim=0
PLIC Interrupt Pending (0xe0001000):
0000 00 00 00 00 00 00 00 00 ........
ˇriscv_dispatch_irq: Clear Pending Interrupts, irq=45, claim=0
PLIC Interrupt Pending (0xe0001000):
0000 00 00 00 00 00 00 00 00 ........
```
But Claim is still 0 though.
TODO: Key press not read correctly
TODO: Why is up_irqinitialize not setting Interrupt Priority properly? Signed arithmetic? Or delay?
TODO: Why is Interrupt Priority set for 4 Interrupts, when we only set 1 (for UART)?