From dedfd49decb3c532f81bee59a41427d8bd36c938 Mon Sep 17 00:00:00 2001 From: Giovanni Di Sirio Date: Fri, 16 Feb 2018 07:54:12 +0000 Subject: Improved TC handling in STM32 USART drivers. git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@11497 35acf78f-673a-0410-8e92-d51de3d6d3f4 --- os/hal/ports/STM32/LLD/USARTv2/hal_serial_lld.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/os/hal/ports/STM32/LLD/USARTv2/hal_serial_lld.c b/os/hal/ports/STM32/LLD/USARTv2/hal_serial_lld.c index b78b6c195..4b5f20836 100644 --- a/os/hal/ports/STM32/LLD/USARTv2/hal_serial_lld.c +++ b/os/hal/ports/STM32/LLD/USARTv2/hal_serial_lld.c @@ -334,11 +334,12 @@ static void serve_interrupt(SerialDriver *sdp) { } /* Physical transmission end.*/ - if (isr & USART_ISR_TC) { + if ((cr1 & USART_CR1_TCIE) && (isr & USART_ISR_TC)) { osalSysLockFromISR(); - if (oqIsEmptyI(&sdp->oqueue)) + if (oqIsEmptyI(&sdp->oqueue)) { chnAddFlagsI(sdp, CHN_TRANSMISSION_END); - u->CR1 = cr1 & ~USART_CR1_TCIE; + u->CR1 = cr1 & ~USART_CR1_TCIE; + } osalSysUnlockFromISR(); } } -- cgit v1.2.3