how to reset i2cbus in software

[Ethan_Lin 0]

Devices :Tinker board 2s

Sometimes, devices will block the I2C bus, but I want to resolve this issue through software without the need for a reboot or power cycling.

I have some ideas, such as altering GPIO status, but this method has proven unsuccessful.

I hope someone can provide a viable solution.

[Ethan_Lin 0]

23 minutes ago, Ethan_Lin said:

Devices :Tinker board 2s  ,  OS : Android 11 

Sometimes, devices will block the I2C bus, but I want to resolve this issue through software without the need for a reboot or power cycling.

I have some ideas, such as altering GPIO status, but this method has proven unsuccessful.

I hope someone can provide a viable solution.

 

[tooz 47]

hello @Ethan_Lin, 

what's the os/ version and i2c bus you're using? did you connect it to other peripherals? 

[Ethan_Lin 0]

4 minutes ago, tooz said:

hello @Ethan_Lin, 

what's the os/ version and i2c bus you're using? did you connect it to other peripherals? 

thanks for reply  tooz

I have connected ADC and DAC. Initially, they functioned properly, but after frequent input and output data operations, I noticed that the returned data became incorrect.

[tooz 47]

hello @Ethan_Lin, 

1. from what you've described i'd suggest to check the devices (the dac, adc)

2.  please collect the logs when the issue occurs, you can use adb with the command: 

adb shell su -c dmesg > dmesg.log