stm32G474RET6 uses HAL IIC and M24C64 communication, the communication is abnormal(solved)

[aston]

[Imen.D]

Hello @扬 谢​ and welcome to the Community :)

Please try to write in English if you want to make sure you can get an answer, because most of the people on this community can speak English but not Chinois.

Imen

[TDK]

Google translate: stm32G474RET6 uses HAL IIC and M24C64 communication, the communication is abnormal

Still not enough detail. Looks like the SCL is held low. Show the full code used to produce this.

[aston]

This is the cubeMX configuration

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Code generated by cubeMX​

This is using NUCLEO_STM32F412RG development board, using IIC and M24C64 communication, this waveform is ok

This is using NUCLEO_STM32G4 development board, using IIC and M24C64 communication, this waveform is abnormal

 

Please help analyze, is it the HAL library problem, or my problem, thank you very much for your help​

[aston · Accepted solution]

​The problem is solved

The macro definition is wrong. After correction, the problem is solved

Thank you TDK

Thanks to imen Dahmen (st)

Thank Alex Xu (st) for helping me find the problem