STM32H7xx HAL_SPI_TransmitReceive_DMA() should abort RX DMA when TX DMA fails

[FSAT]

HAL_SPI_TransmitReceive_DMA() can lead to non-functional DMA when the following happens:

1. RX DMA state ready
2. TX DMA state busy
3. HAL_SPI_TransmitReceive_DMA() gets called

The result is that RX DMA will become busy and never recovers due to the logic in lines 2413 to 2470 in stm32h7xx_hal_spi.c.

A fix would be to insert a

HAL_DMA_Abort_IT(hspi->hdmarx);

into the the if-condition in lines 2458 to 2470 to abort the previously started RX DMA

Greetings

[julien B · Accepted solution]

Hello @FSAT​ 

Thank you for bringing these issues to our attention.

I confirm and I reported internally.

Related issue tracked under the number 149580

These are internal tracking numbers and are not accessible or usable by customers.

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Julien.