M4 of i.mx8Q controls ADMA-I2C0 to communicate with TI-DS90UB947 failed

[3131734215]

Hello:

1.My program uses M4 of i.mx8Q to control ADMA-I2C0 to communicate with TI-DS90UB947,M4 use uuu downloader，SDK_2.5.2_MIMX8QX6xxxFZ\boards\mekmimx8qx\driver_examples\lpi2c\polling_b2b_transfer is used for reference program.

2.Problem：

M4 controls ADMA-I2C0 communication failed with TI-DS90UB947,the read and write of ADMA-I2C0 is failed,I cannot find the reason?

3.On the same board, my colleague successfully communicated with TI-DS90UB947 using A35 of imx8!

4.Program path:

\boards\mekmimx8qx\driver_examples\lpi2c_myadd，the program can be compile successfully.

5.I need help about why the program stopped,thank you very much!

[igorpadykov]

Hi lin

one can try to assign necessary i2c module to m4 partition, details can be found in

SCFW Resource Management Confusion 

SCFW Porting Kit

Best regards
igor
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[3131734215]

Hi igorpadykov:

 thanks for your replay!

 Is there a problem with my IAR program, the configuration of ADMA-I2C0, and the read and write functions of I2C0?

 I am currently working from home, I can not confirm the waveform I send without an oscilloscope.

 I didn't find the error in my program. I hope your help. 

 Thank you very much!