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-rw-r--r--os/hal/ports/STM32/LLD/QUADSPIv1/hal_qspi_lld.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/os/hal/ports/STM32/LLD/QUADSPIv1/hal_qspi_lld.c b/os/hal/ports/STM32/LLD/QUADSPIv1/hal_qspi_lld.c
index 523a6471e..7e42b6ffb 100644
--- a/os/hal/ports/STM32/LLD/QUADSPIv1/hal_qspi_lld.c
+++ b/os/hal/ports/STM32/LLD/QUADSPIv1/hal_qspi_lld.c
@@ -77,12 +77,15 @@ static void qspi_lld_serve_dma_interrupt(QSPIDriver *qspip, uint32_t flags) {
*/
static void qspi_lld_serve_interrupt(QSPIDriver *qspip) {
- /* Stop everything.*/
- dmaStreamDisable(qspip->dma);
-
/* Portable QSPI ISR code defined in the high level driver, note, it is
a macro.*/
_qspi_isr_code(qspip);
+
+ /* Stop everything, we need to give DMA enough time to complete the ongoing
+ operation. Race condition hidden here.*/
+ while (dmaStreamGetTransactionSize(qspip->dma) > 0U)
+ ;
+ dmaStreamDisable(qspip->dma);
}
/*===========================================================================*/