IMX6 - TSC2007 i2c-ERROR

[geekdarcy]

Hi everyone,

I'm developing a new board based on the IMX6.

I have driven a touch screen on I2C bus 3.

Sometimes it's can work correctly.

Sometimes I get error as follows:

tsc2007 2-0048: dbg i2c io error: -5.

I found core cpu can't communicate with tsc2007,the touch screen chip.

Does anyone know what I am doing wrong? Any clue about that error?

Kind regards

[art]

First, check the I2C bus consistency, signal integrity, the values of the bus pull-up resistors etc. Also, try to slow down the communication speed.

Have a great day,
Artur