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| author | Damien George <damien.p.george@gmail.com> | 2016-11-11 17:24:18 +1100 |
|---|---|---|
| committer | Damien George <damien.p.george@gmail.com> | 2016-11-11 17:24:18 +1100 |
| commit | e6da6a720fb2bb48c6885e5f28f5f917690080fd (patch) | |
| tree | 993914e07dd6a365e8f4e524c561bb3459e903cc /stmhal/dma.c | |
| parent | 679c0c4c835371552fb0bc9b65a4893ceaaf7471 (diff) | |
| download | micropython-e6da6a720fb2bb48c6885e5f28f5f917690080fd.tar.gz micropython-e6da6a720fb2bb48c6885e5f28f5f917690080fd.zip | |
stmhal/dma: De-init the DMA peripheral properly before initialising.
The DMA state is always HAL_DMA_STATE_RESET because of the memset clearing
all the data, so prior to this patch HAL_DMA_DeInit was never called. Now
it is always called to make sure the DMA is properly reset.
Diffstat (limited to 'stmhal/dma.c')
| -rw-r--r-- | stmhal/dma.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/stmhal/dma.c b/stmhal/dma.c index 218d0fbef2..7b540f847e 100644 --- a/stmhal/dma.c +++ b/stmhal/dma.c @@ -430,9 +430,8 @@ void dma_init(DMA_HandleTypeDef *dma, const dma_descr_t *dma_descr, void *data){ dma_last_sub_instance[dma_id] = sub_inst; // reset and configure DMA peripheral - if (HAL_DMA_GetState(dma) != HAL_DMA_STATE_RESET) { - HAL_DMA_DeInit(dma); - } + // (dma->State is set to HAL_DMA_STATE_RESET by memset above) + HAL_DMA_DeInit(dma); HAL_DMA_Init(dma); HAL_NVIC_SetPriority(dma_irqn[dma_id], IRQ_PRI_DMA, IRQ_SUBPRI_DMA); } |