diff options
| author | gdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4> | 2010-07-30 12:55:50 +0000 |
|---|---|---|
| committer | gdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4> | 2010-07-30 12:55:50 +0000 |
| commit | 5ff9f39050d5bd8e64ed00eb6ba198882d8cfc15 (patch) | |
| tree | 89b6f9f4f1c100122f7a03632c44aa04dfbc5e24 /os | |
| parent | a88c4972cf426c9c57fd246b3bacdb1e919b7ebd (diff) | |
| download | ChibiOS-5ff9f39050d5bd8e64ed00eb6ba198882d8cfc15.tar.gz ChibiOS-5ff9f39050d5bd8e64ed00eb6ba198882d8cfc15.tar.bz2 ChibiOS-5ff9f39050d5bd8e64ed00eb6ba198882d8cfc15.zip | |
git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@2097 35acf78f-673a-0410-8e92-d51de3d6d3f4
Diffstat (limited to 'os')
| -rw-r--r-- | os/hal/platforms/STM32/uart_lld.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/os/hal/platforms/STM32/uart_lld.c b/os/hal/platforms/STM32/uart_lld.c index 8b9330fdc..7f55fabb0 100644 --- a/os/hal/platforms/STM32/uart_lld.c +++ b/os/hal/platforms/STM32/uart_lld.c @@ -371,9 +371,10 @@ void uart_lld_stop(UARTDriver *uartp) { */
void uart_lld_start_send(UARTDriver *uartp, size_t n, const void *txbuf) {
- (void)uartp;
- (void)n;
- (void)txbuf;
+ /* TX DMA channel preparation and start.*/
+ dmaSetupChannel(uartp->ud_dmap, uartp->ud_dmatx, n, &uartp->ud_txbuf,
+ uartp->ud_dmaccr | DMA_CCR1_TEIE | DMA_CCR1_TCIE);
+ dmaEnableChannel(uartp->ud_dmap, uartp->ud_dmatx);
}
/**
@@ -384,7 +385,8 @@ void uart_lld_start_send(UARTDriver *uartp, size_t n, const void *txbuf) { */
void uart_lld_stop_send(UARTDriver *uartp) {
- (void)uartp;
+ dmaDisableChannel(uartp->ud_dmap, uartp->ud_dmatx);
+ dmaClearChannel(uartp->ud_dmap, uartp->ud_dmatx);
}
/**
|