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[B96B_F446VE] bug fix for serial_async unitary test 

do not initialise dma tx/rx when it is not activated.
pull/1493/head
adustm 2016-01-21 15:54:36 +01:00
parent 44cb38ba7c
commit 016976b79d
1 changed files with 20 additions and 16 deletions
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36
libraries/mbed/targets/hal/TARGET_STM/TARGET_STM32F4/serial_api.c
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@ -89,27 +89,30 @@ static void init_uart(serial_t *obj)
UartHandle.Init.Mode = UART_MODE_TX_RX;
}
#if DEVICE_SERIAL_ASYNCH_DMA
// set DMA in the UartHandle
/* Configure the DMA handler for Transmission process */
hdma_tx.Instance = (DMA_Stream_TypeDef *)DMA_UartTx_Stream[SERIAL_OBJ(index)];
hdma_tx.Init.Channel = DMA_UartTx_Channel[SERIAL_OBJ(index)];
hdma_tx.Init.Direction = DMA_MEMORY_TO_PERIPH;
hdma_tx.Init.PeriphInc = DMA_PINC_DISABLE;
hdma_tx.Init.MemInc = DMA_MINC_ENABLE;
hdma_tx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
hdma_tx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
hdma_tx.Init.Mode = DMA_NORMAL;
hdma_tx.Init.Priority = DMA_PRIORITY_LOW;
hdma_tx.Init.FIFOMode = DMA_FIFOMODE_DISABLE;
hdma_tx.Init.FIFOThreshold = DMA_FIFO_THRESHOLD_FULL;
hdma_tx.Init.MemBurst = DMA_MBURST_INC4;
hdma_tx.Init.PeriphBurst = DMA_PBURST_INC4;
if (SERIAL_OBJ(pin_tx) != NC) {
// set DMA in the UartHandle
/* Configure the DMA handler for Transmission process */
hdma_tx.Instance = (DMA_Stream_TypeDef *)DMA_UartTx_Stream[SERIAL_OBJ(index)];
hdma_tx.Init.Channel = DMA_UartTx_Channel[SERIAL_OBJ(index)];
hdma_tx.Init.Direction = DMA_MEMORY_TO_PERIPH;
hdma_tx.Init.PeriphInc = DMA_PINC_DISABLE;
hdma_tx.Init.MemInc = DMA_MINC_ENABLE;
hdma_tx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
hdma_tx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
hdma_tx.Init.Mode = DMA_NORMAL;
hdma_tx.Init.Priority = DMA_PRIORITY_LOW;
hdma_tx.Init.FIFOMode = DMA_FIFOMODE_DISABLE;
hdma_tx.Init.FIFOThreshold = DMA_FIFO_THRESHOLD_FULL;
hdma_tx.Init.MemBurst = DMA_MBURST_INC4;
hdma_tx.Init.PeriphBurst = DMA_PBURST_INC4;
HAL_DMA_Init(&hdma_tx);
/* Associate the initialized DMA handle to the UART handle */
__HAL_LINKDMA(&UartHandle, hdmatx, hdma_tx);
}
if (SERIAL_OBJ(pin_rx) != NC) {
/* Configure the DMA handler for reception process */
hdma_rx.Instance = (DMA_Stream_TypeDef *)DMA_UartRx_Stream[SERIAL_OBJ(index)];
hdma_rx.Init.Channel = DMA_UartRx_Channel[SERIAL_OBJ(index)];
@ -129,6 +132,7 @@ static void init_uart(serial_t *obj)
/* Associate the initialized DMA handle to the UART handle */
__HAL_LINKDMA(&UartHandle, hdmarx, hdma_rx);
}
#endif
if (HAL_UART_Init(&UartHandle) != HAL_OK) {