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Diffstat (limited to 'src/stm32/stm32h7_serial.c')
-rw-r--r--src/stm32/stm32h7_serial.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/stm32/stm32h7_serial.c b/src/stm32/stm32h7_serial.c
index 1cb93e9b..b5070290 100644
--- a/src/stm32/stm32h7_serial.c
+++ b/src/stm32/stm32h7_serial.c
@@ -68,7 +68,7 @@ void
USARTx_IRQHandler(void)
{
uint32_t isr = USARTx->ISR;
- if (isr & (USART_ISR_RXNE_RXFNE | USART_ISR_ORE))
+ if (isr & USART_ISR_RXNE_RXFNE)
serial_rx_byte(USARTx->RDR);
//USART_ISR_TXE_TXFNF only works with Fifo mode disabled
if (isr & USART_ISR_TXE_TXFNF && USARTx->CR1 & USART_CR1_TXEIE) {
@@ -96,6 +96,7 @@ serial_init(void)
uint32_t div = DIV_ROUND_CLOSEST(pclk, CONFIG_SERIAL_BAUD);
USARTx->BRR = (((div / 16) << USART_BRR_DIV_MANTISSA_Pos)
| ((div % 16) << USART_BRR_DIV_FRACTION_Pos));
+ USARTx->CR3 = USART_CR3_OVRDIS; // disable the ORE ISR
USARTx->CR1 = CR1_FLAGS;
armcm_enable_irq(USARTx_IRQHandler, USARTx_IRQn, 0);