Non blocking SPI DMA transceive never completes in RTOS application

[WCarey]

Description:

My RTOS application on NUCLEO-H563ZI board runs a thread CollectSamplesThread. I generate an interrupt every 8Khz using a timer and the ISR triggers a non blocking SPI transfer:

The application code:

void InitAdeSpi()
{
    // SPI1 Initialisation
    if (hSPI.hdmarx != NULL)
    {
        HAL_DMA_RegisterCallback(hSPI.hdmarx, HAL_DMA_XFER_CPLT_CB_ID, AdcSpiRxCallback);
    }
}

void AdcSpiRxCallback()
{
    BaseType_t xHigherPriorityTaskWoken = pdFALSE;
    // Release the sempahore thats blocked to validate the frames in CollectSamplesThread
    xSemaphoreGiveFromISR(xSpiRxSemph, &xHigherPriorityTaskWoken);
    portYIELD_FROM_ISR(xHigherPriorityTaskWoken);
}

void TIM3_IRQHandler(void)
{
    EvbDataRdyTimerHandler();
}
 
void EvbDataRdyTimerHandler(void) // Ensure this matches the existing declaration
{
    __HAL_TIM_CLEAR_FLAG(&hTimDready, TIM_FLAG_UPDATE);
   // Release the sempahore that is blocked in the CollectSamplesThread for Dready callback
      xSemaphoreGiveFromISR(xSamplesAvailSemph, &xHigherPriorityTaskWoken);
       portYIELD_FROM_ISR(xHigherPriorityTaskWoken);
} 

void CollectSamplesThread(void *pArg)
{
    HAL_StatusTypeDef halStatus;
    int32_t status = 0;
    if (pArg == NULL)
    {
        while (1)
        {
              if (xSemaphoreTake(xSamplesAvailSemph, portMAX_DELAY) == pdTRUE)
              {
                  halStatus = HAL_SPI_TransmitReceive_DMA(hSPI, pTxData, pRxData, (uint16_t)numBytes);
                  if (halStatus != HAL_OK)
                  {
                         status = -1;
                   }
                  if (status == 0)
                  {
                       if (xSemaphoreTake(xSpiRxSemph, portMAX_DELAY) == pdTRUE)
                       {
                            //Validate samples
                        }
                }
          }
     }
}

I enabled SPI1 IRQ and also DMA Tx & Rx channel IRQs.

Issue:

Tx DMA ISR is hit, Rx DMA ISR is not hit. SPI1 ISR, SPI1_IRQHandler, is also not hit.

Additional info:

System clock is configured to 250 Mhz.

Before calling HAL_SPI_TransmitReceive_DMA, 

• SPI1->SR = 0x00011002 (TXP=1, TXC=1, no EOT)
• SPI1->IER = 0x0 (interrupts disabled)

At if (halStatus != HAL_OK),

• SPI1->SR = 0x00010012 (TXP=1, EOT=1, TXC=1) ✓ EOT flag is set
• SPI1->IER = 0x00000360 (EOTIE=1, bits 5,6,8,9 enabled) ✓ EOT interrupt is enabled