A few years late to this, but it looks like the hal_dma still enables the half-transfer interrupt without any clear way to disable it without hacking the hal, as S.Ma mentions. This hack can be done by commenting out the following line in HAL_DMA_Start_IT:
// ((BDMA_Channel_TypeDef *)hdma->Instance)->CCR |= BDMA_CCR_HTIE;
However, I was worried that if our hal was ever updated I'd lose my "fix". So decided to handle the problem in the interrupt instead. Just checking to make sure the full transfer flag has occurred before doing stuff. And ignoring the half-transfer interrupt.
void DMA1_Stream0_IRQHandler(void) {
NVIC_ClearPendingIRQ(DMA1_Stream0_IRQn);
if (__HAL_DMA_GET_FLAG(&m_hdma_spi1_rx, HAL_DMA_GET_TC_FLAG_INDEX(&m_hdma_spi1_rx))) {
// reading is complete, reenable interrupt
HAL_DMA_IRQHandler(&m_hdma_spi1_rx);
do_more_stuff(&m_stuff);
}
}
where m_hdma_spi1_rx is:
static DMA_HandleTypeDef m_hdma_spi1_rx = {
.Instance = DMA1_Stream0,
.Init =
{
.Request = DMA_REQUEST_SPI1_RX,
.Direction = DMA_PERIPH_TO_MEMORY,
.PeriphInc = DMA_PINC_DISABLE,
.MemInc = DMA_MINC_ENABLE,
.PeriphDataAlignment = DMA_PDATAALIGN_BYTE,
.MemDataAlignment = DMA_MDATAALIGN_BYTE,
.Mode = DMA_NORMAL,
.Priority = DMA_PRIORITY_HIGH,
.FIFOMode = DMA_FIFOMODE_DISABLE,
},
};
Hope this is helpful
