From f0e2c8c324dd6a71415cbd42b4ceaf6732fe990b Mon Sep 17 00:00:00 2001 From: gdisirio Date: Sat, 22 Jan 2011 09:52:08 +0000 Subject: Fixed bug 3163851. git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@2664 35acf78f-673a-0410-8e92-d51de3d6d3f4 --- os/hal/platforms/STM32/serial_lld.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) (limited to 'os/hal') diff --git a/os/hal/platforms/STM32/serial_lld.c b/os/hal/platforms/STM32/serial_lld.c index 84e42f44d..1d45315cc 100644 --- a/os/hal/platforms/STM32/serial_lld.c +++ b/os/hal/platforms/STM32/serial_lld.c @@ -98,10 +98,10 @@ static void usart_init(SerialDriver *sdp, const SerialConfig *config) { * Note that some bits are enforced. */ u->CR1 = config->sc_cr1 | USART_CR1_UE | USART_CR1_PEIE | - USART_CR1_RXNEIE | USART_CR1_TE | - USART_CR1_RE; + USART_CR1_RXNEIE | USART_CR1_RE; u->CR2 = config->sc_cr2 | USART_CR2_LBDIE; u->CR3 = config->sc_cr3 | USART_CR3_EIE; + u->SR = 0; (void)u->SR; /* SR reset step 1.*/ (void)u->DR; /* SR reset step 2.*/ } @@ -175,8 +175,10 @@ static void serve_interrupt(SerialDriver *sdp) { chIOAddFlagsI(sdp, IO_OUTPUT_EMPTY); u->CR1 = cr1 & ~USART_CR1_TXEIE; } - else + else { u->DR = b; + u->CR1 = cr1 | USART_CR1_TE; + } chSysUnlockFromIsr(); } } -- cgit v1.2.3