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jsolmen · 2021-12-28

Hi all, I connect to a BMS board (TI BQ4050) using the HAL SMBUS driver.In my old platform, STM32F401, I can read registers from the BMS. Somehow, identical code on a STM32F446 fails half way through the read transaction (HAL_SMBUS_Master_Receive_IT)...

jsolmen · 2022-01-21

Thanks. In the end the issue was cause by the usage of semihosting code in the STM32F446, it was somehow messing with interrupts. To be honest I did not get to the bottom of it. In the STM32F401 I was able to use a debug UART to ouput debug printout...

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SMBUS works with STM32F401 but fails with STM32F446

Re: SMBUS works with STM32F401 but fails with STM32F446