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Explore I2C
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README.md
124
README.md
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@ -8017,7 +8017,7 @@ From [DesignWare DW_apb_i2c Databook](https://github.com/lupyuen/nuttx-star64/bl
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The above Actual Values were retrieved from U-Boot...
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```bash
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## Omitted: Power Up I2C Controller
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## Omitted: Power Up the I2C Controller
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...
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## Dump the I2C Registers for I2C Port 0
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$ md 0x10030000 0x40
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@ -8041,6 +8041,128 @@ $ md 0x10030000 0x40
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TODO: Read PMIC with U-Boot
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TODO: Which I2C ports are in use?
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```bash
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## Omitted: Power Up the I2C Controller
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...
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## Dump the I2C Registers for I2C Port 1
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$ md 0x10040000 0x40
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10040000: 0000007f 00000055 00000055 00000001 ....U...U.......
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10040010: 00000000 00000190 000001d6 0000003c ............<...
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10040020: 00000082 00000006 00000010 00000000 ................
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10040030: 000008ff 00000000 00000000 00000000 ................
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10040040: 00000000 00000000 00000000 00000000 ................
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10040050: 00000000 00000000 00000000 00000000 ................
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10040060: 00000000 00000000 00000000 00000004 ................
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10040070: 00000006 00000000 00000000 00000001 ................
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10040080: 00000000 00000000 00000000 00000000 ................
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10040090: 00000000 00000064 00000001 00000000 ....d...........
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100400a0: 00000005 00000001 00000000 00000000 ................
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100400b0: 00000000 00000000 00000000 00000000 ................
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100400c0: 00000000 00000000 00000000 00000000 ................
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100400d0: 00000000 00000000 00000000 00000000 ................
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100400e0: 00000000 00000000 00000000 00000000 ................
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100400f0: 00000000 001f1fee 3230302a 44570140 ........*002@.WD
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## Dump the I2C Registers for I2C Port 2
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$ md 0x10050000 0x40
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10050000: 0000007f 00000055 00000055 00000001 ....U...U.......
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10050010: 00000000 00000190 000001d6 0000003c ............<...
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10050020: 00000082 00000006 00000010 00000000 ................
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10050030: 000008ff 00000000 00000000 00000000 ................
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10050040: 00000000 00000000 00000000 00000000 ................
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10050050: 00000000 00000000 00000000 00000000 ................
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10050060: 00000000 00000000 00000000 00000004 ................
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10050070: 00000006 00000000 00000000 00000001 ................
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10050080: 00000000 00000000 00000000 00000000 ................
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10050090: 00000000 00000064 00000001 00000000 ....d...........
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100500a0: 00000005 00000001 00000000 00000000 ................
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100500b0: 00000000 00000000 00000000 00000000 ................
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100500c0: 00000000 00000000 00000000 00000000 ................
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100500d0: 00000000 00000000 00000000 00000000 ................
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100500e0: 00000000 00000000 00000000 00000000 ................
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100500f0: 00000000 001f1fee 3230302a 44570140 ........*002@.WD
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## Dump the I2C Registers for I2C Port 3
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$ md 0x12030000 0x40
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12030000: 0000007f 00000055 00000055 00000001 ....U...U.......
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12030010: 00000000 00000190 000001d6 0000003c ............<...
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12030020: 00000082 00000006 00000010 00000000 ................
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12030030: 000008ff 00000000 00000000 00000000 ................
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12030040: 00000000 00000000 00000000 00000000 ................
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12030050: 00000000 00000000 00000000 00000000 ................
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12030060: 00000000 00000000 00000000 00000004 ................
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12030070: 00000006 00000000 00000000 00000001 ................
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12030080: 00000000 00000000 00000000 00000000 ................
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12030090: 00000000 00000064 00000001 00000000 ....d...........
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120300a0: 00000005 00000001 00000000 00000000 ................
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120300b0: 00000000 00000000 00000000 00000000 ................
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120300c0: 00000000 00000000 00000000 00000000 ................
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120300d0: 00000000 00000000 00000000 00000000 ................
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120300e0: 00000000 00000000 00000000 00000000 ................
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120300f0: 00000000 001f1fee 3230302a 44570140 ........*002@.WD
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## Dump the I2C Registers for I2C Port 4
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$ md 0x12040000 0x40
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12040000: 0000007f 00000055 00000055 00000001 ....U...U.......
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12040010: 00000000 00000190 000001d6 0000003c ............<...
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12040020: 00000082 00000006 00000010 00000000 ................
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12040030: 000008ff 00000000 00000000 00000000 ................
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12040040: 00000000 00000000 00000000 00000000 ................
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12040050: 00000000 00000000 00000000 00000000 ................
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12040060: 00000000 00000000 00000000 00000004 ................
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12040070: 00000006 00000000 00000000 00000001 ................
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12040080: 00000000 00000000 00000000 00000000 ................
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12040090: 00000000 00000064 00000001 00000000 ....d...........
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120400a0: 00000005 00000001 00000000 00000000 ................
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120400b0: 00000000 00000000 00000000 00000000 ................
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120400c0: 00000000 00000000 00000000 00000000 ................
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120400d0: 00000000 00000000 00000000 00000000 ................
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120400e0: 00000000 00000000 00000000 00000000 ................
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120400f0: 00000000 001f1fee 3230302a 44570140 ........*002@.WD
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## Dump the I2C Registers for I2C Port 5
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$ md 0x12050000 0x40
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12050000: 00000063 00000050 00000055 00000001 c...P...U.......
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12050010: 000000ff 00000020 000000b0 0000003c .... .......<...
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12050020: 00000082 00000006 00000010 00000200 ................
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12050030: 00000200 00000711 00000000 00000000 ................
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12050040: 00000001 00000000 00000000 00000000 ................
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12050050: 00000000 00000000 00000000 00000000 ................
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12050060: 00000000 00000000 00000000 00000001 ................
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12050070: 00000006 00000000 00000000 00000008 ................
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12050080: 00000000 00000000 00000000 00000000 ................
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12050090: 00000000 00000064 00000001 00000001 ....d...........
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120500a0: 00000005 00000001 00000000 00000000 ................
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120500b0: 00000000 00000000 00000000 00000000 ................
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120500c0: 00000000 00000000 00000000 00000000 ................
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120500d0: 00000000 00000000 00000000 00000000 ................
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120500e0: 00000000 00000000 00000000 00000000 ................
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120500f0: 00000000 001f1fee 3230302a 44570140 ........*002@.WD
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## Dump the I2C Registers for I2C Port 6
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$ md 0x12060000 0x40
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12060000: 0000007f 00000055 00000055 00000001 ....U...U.......
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12060010: 00000000 00000190 000001d6 0000003c ............<...
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12060020: 00000082 00000006 00000010 00000000 ................
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12060030: 000008ff 00000000 00000000 00000000 ................
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12060040: 00000000 00000000 00000000 00000000 ................
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12060050: 00000000 00000000 00000000 00000000 ................
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12060060: 00000000 00000000 00000000 00000004 ................
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12060070: 00000006 00000000 00000000 00000001 ................
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12060080: 00000000 00000000 00000000 00000000 ................
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12060090: 00000000 00000064 00000001 00000000 ....d...........
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120600a0: 00000005 00000001 00000000 00000000 ................
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120600b0: 00000000 00000000 00000000 00000000 ................
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120600c0: 00000000 00000000 00000000 00000000 ................
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120600d0: 00000000 00000000 00000000 00000000 ................
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120600e0: 00000000 00000000 00000000 00000000 ................
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120600f0: 00000000 001f1fee 3230302a 44570140 ........*002@.WD
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```
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TODO: I2C Port 5 has I2C Target Address 0x50. Probably in use
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# PineTab-V Factory Test Code
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The PineTab-V ships with [Factory Test Code](https://wiki.pine64.org/wiki/PineTab-V_Releases#Factory_releases).
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