Tool for talking to ITE ECs via SMBus debug interface (DBGR/SMB).
Check your board´s schematics for SDA/SCL on the battery connector. D0 of your FTDI interface goes to SCL, while D1+D2 togeter form SDA.
+---+
+------+ | 1 |
| D2 |--+-----------+ | 2 |
| | | | | 3 |
| D1 |--+ | | 4 |
| | +-----------| 5 | SDA
| D0 |--------------------------| 6 | SCL
| | | 7 |
| GND |--------------------------| 8 | GND
+------+ | 9 |
+---+
FT2232H/FT4232H/FT232H Battery connector
(in this example: Clevo L140CU)
Read some data
$ ./i2ite.py ftdi://ftdi:4232/2 0xff24
ff24: 07
Write some data
$ ./i2ite.py ftdi://ftdi:4232/2 0xffab 0x00
... or in some python shell like ipython:
import i2ite
> i = i2ite.I2ITE("ftdi://ftdi:4232/2")
> i.xram_dump(0, 0x10)
00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
0000: 05 b1 11 34 12 b1 00 00 00 00 00 00 00 00 00 00
0010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Copyright (c) 2021 Michael Niewöhner
This is open source software, licensed under GPLv2. See LICENSE file for details.