diff options
| -rw-r--r-- | stmhal/dac.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/stmhal/dac.c b/stmhal/dac.c index 7493bb59ab..a9b1b9eca7 100644 --- a/stmhal/dac.c +++ b/stmhal/dac.c @@ -171,6 +171,14 @@ STATIC mp_obj_t pyb_dac_init_helper(pyb_dac_obj_t *self, mp_uint_t n_args, const #endif // stop anything already going on + __DMA1_CLK_ENABLE(); + DMA_HandleTypeDef DMA_Handle; + /* Get currently configured dma */ + dma_init_handle(&DMA_Handle, self->tx_dma_descr, (void*)NULL); + // Need to deinit DMA first + DMA_Handle.State = HAL_DMA_STATE_READY; + HAL_DMA_DeInit(&DMA_Handle); + HAL_DAC_Stop(&DAC_Handle, self->dac_channel); if ((self->dac_channel == DAC_CHANNEL_1 && DAC_Handle.DMA_Handle1 != NULL) || (self->dac_channel == DAC_CHANNEL_2 && DAC_Handle.DMA_Handle2 != NULL)) { |