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Code Issues Wiki Activity

added single wire half duplex UART

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Conflicts:

	src/main/telemetry/telemetry.h
This commit is contained in:
Frank Zhao 2014-11-04 10:49:10 -08:00 • committed by Dominic Clifton
parent 0000d3e65e
commit 6311dc8f8c
7 changed files with 42 additions and 10 deletions
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11
src/main/drivers/serial_uart.c
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@ -59,6 +59,8 @@ static void uartReconfigure(uartPort_t *uartPort)
USART_InitStructure.USART_Mode |= USART_Mode_Rx;
if (uartPort->port.mode & MODE_TX)
USART_InitStructure.USART_Mode |= USART_Mode_Tx;
if (uartPort->port.mode & MODE_BIDIR)
USART_InitStructure.USART_Mode |= USART_Mode_Tx | USART_Mode_Rx;
USART_Init(uartPort->USARTx, &USART_InitStructure);
USART_Cmd(uartPort->USARTx, ENABLE);
@ -111,7 +113,7 @@ serialPort_t *uartOpen(USART_TypeDef *USARTx, serialReceiveCallbackPtr callback,
// Receive DMA or IRQ
DMA_InitTypeDef DMA_InitStructure;
if (mode & MODE_RX) {
if ((mode & MODE_RX) || (mode & MODE_BIDIR)) {
if (s->rxDMAChannel) {
DMA_StructInit(&DMA_InitStructure);
DMA_InitStructure.DMA_PeripheralBaseAddr = s->rxDMAPeripheralBaseAddr;
@ -138,7 +140,7 @@ serialPort_t *uartOpen(USART_TypeDef *USARTx, serialReceiveCallbackPtr callback,
}
// Transmit DMA or IRQ
if (mode & MODE_TX) {
if ((mode & MODE_TX) || (mode & MODE_BIDIR)) {
if (s->txDMAChannel) {
DMA_StructInit(&DMA_InitStructure);
DMA_InitStructure.DMA_PeripheralBaseAddr = s->txDMAPeripheralBaseAddr;
@ -165,6 +167,11 @@ serialPort_t *uartOpen(USART_TypeDef *USARTx, serialReceiveCallbackPtr callback,
USART_Cmd(s->USARTx, ENABLE);
if (mode & MODE_BIDIR)
USART_HalfDuplexCmd(s->USARTx, ENABLE);
else
USART_HalfDuplexCmd(s->USARTx, DISABLE);
return (serialPort_t *)s;
}