diff --git a/os/hal/platforms/STM32/sdc_lld.c b/os/hal/platforms/STM32/sdc_lld.c index 953f42d32..59f988eb0 100644 --- a/os/hal/platforms/STM32/sdc_lld.c +++ b/os/hal/platforms/STM32/sdc_lld.c @@ -176,26 +176,23 @@ static bool_t sdc_lld_wait_transaction_end(SDCDriver *sdcp, uint32_t n, return CH_FAILED; } - /* Wait until DMA channel enabled to be sure that all data transferred.*/ - while (sdcp->dma->stream->CR & STM32_DMA_CR_EN) - ; - - /* DMA event flags must be manually cleared.*/ - dmaStreamClearInterrupt(sdcp->dma); + /* Waits for transfer completion at DMA level, the the stream is + disabled and cleared.*/ + dmaWaitCompletion(sdcp->dma); SDIO->ICR = STM32_SDIO_ICR_ALL_FLAGS; SDIO->DCTRL = 0; chSysUnlock(); /* Wait until interrupt flags to be cleared.*/ - while (((DMA2->LISR) >> (sdcp->dma->ishift)) & STM32_DMA_ISR_TCIF) - dmaStreamClearInterrupt(sdcp->dma); +/* while (((DMA2->LISR) >> (sdcp->dma->ishift)) & STM32_DMA_ISR_TCIF) + dmaStreamClearInterrupt(sdcp->dma);*/ /* Finalize transaction.*/ if (n > 1) return sdc_lld_send_cmd_short_crc(sdcp, SDC_CMD_STOP_TRANSMISSION, 0, resp); - else - return CH_SUCCESS; + + return CH_SUCCESS; } /**