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HAL_SPI_TransmitReceive_DMA() is not showing any data transmissiom or reception.(slave: Arduino nano as dummy sensor and stm32mp157C as master )

AWhic.1
Associate

hello,

I'm a new member here so if i am uploading this question in a wrong way please notify me.

i am working at the moment with octavo board OSD32MP15x that integrates the STM32MP15x dual core Arm cortex A7 and an arm cortex m4.

i am trying to run a simple example with HAL_SPI_TransmitReceive_DMA() just to transmit and receive the same byte every time. the code is not showing me any errors when building but when i use the logic analyser there is no data transmission or reception. i added the dma_rx and dma_tx requests using the the ioc file and working with the circular mode in both cases.

is there any suggestions as to what might be the reason behind it ?

PS: the same example with HAL_SPI_TransmitReceive() worked just fine.

thank you in advance!

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