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I2c 2 stop signal error on imx 51 evk with wince 6

Question asked by 謝 端桂 on Jun 6, 2016
Latest reply on Jun 16, 2016 by igorpadykov

Dear all:

I use i2c 2 to communicate with a touch ic. I use i2c analyzer to log i2c transmission.

Sometimes the i2c didn't send stop signal after write transmission is complete.

 

I also use the oscilloscope to log  i2c waveform, the ending waveform is SDA( Low -> High), SCL(Low), The waveform show as below

I2C FAIL.jpg

 

But the normal i2c stop signal is SDA(Low->High), SCL(High).Does any solution to solve problem?

Does it effect i2c2, if I use dvi display driver?

best regards,

Victor

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