diff options
| -rw-r--r-- | os/hal/ports/STM32/LLD/USARTv1/hal_serial_lld.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/os/hal/ports/STM32/LLD/USARTv1/hal_serial_lld.c b/os/hal/ports/STM32/LLD/USARTv1/hal_serial_lld.c index bc4be0edd..b76c06ef5 100644 --- a/os/hal/ports/STM32/LLD/USARTv1/hal_serial_lld.c +++ b/os/hal/ports/STM32/LLD/USARTv1/hal_serial_lld.c @@ -213,12 +213,12 @@ static void serve_interrupt(SerialDriver *sdp) { }
/* Physical transmission end.*/
- if (sr & USART_SR_TC) {
+ if ((cr1 & USART_CR1_TCIE) && (sr & USART_SR_TC)) {
osalSysLockFromISR();
- if (oqIsEmptyI(&sdp->oqueue))
+ if (oqIsEmptyI(&sdp->oqueue)) {
chnAddFlagsI(sdp, CHN_TRANSMISSION_END);
- u->CR1 = cr1 & ~USART_CR1_TCIE;
- u->SR = ~USART_SR_TC;
+ u->CR1 = cr1 & ~USART_CR1_TCIE;
+ }
osalSysUnlockFromISR();
}
}
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