diff options
| -rw-r--r-- | os/hal/ports/STM32/LLD/USARTv1/hal_serial_lld.c | 2 | ||||
| -rw-r--r-- | os/hal/ports/STM32/LLD/USARTv1/hal_uart_lld.c | 4 |
2 files changed, 5 insertions, 1 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 17d08b7a3..0321e1669 100644 --- a/os/hal/ports/STM32/LLD/USARTv1/hal_serial_lld.c +++ b/os/hal/ports/STM32/LLD/USARTv1/hal_serial_lld.c @@ -115,8 +115,10 @@ static void usart_init(SerialDriver *sdp, const SerialConfig *config) { /* Correcting USARTDIV when oversampling by 8 instead of 16.
Fraction is still 4 bits wide, but only lower 3 bits used.
Mantissa is doubled, but Fraction is left the same.*/
+#if defined(USART_CR1_OVER8)
if (config->cr1 & USART_CR1_OVER8)
fck = ((fck & ~7) * 2) | (fck & 7);
+#endif
u->BRR = fck;
/* Note that some bits are enforced.*/
diff --git a/os/hal/ports/STM32/LLD/USARTv1/hal_uart_lld.c b/os/hal/ports/STM32/LLD/USARTv1/hal_uart_lld.c index c10944226..db7ab9250 100644 --- a/os/hal/ports/STM32/LLD/USARTv1/hal_uart_lld.c +++ b/os/hal/ports/STM32/LLD/USARTv1/hal_uart_lld.c @@ -216,8 +216,10 @@ static void usart_start(UARTDriver *uartp) { /* Correcting USARTDIV when oversampling by 8 instead of 16.
Fraction is still 4 bits wide, but only lower 3 bits used.
Mantissa is doubled, but Fraction is left the same.*/
- if (uartp->config->cr1 & USART_CR1_OVER8)
+#if defined(USART_CR1_OVER8)
+ if (config->cr1 & USART_CR1_OVER8)
fck = ((fck & ~7) * 2) | (fck & 7);
+#endif
u->BRR = fck;
/* Resetting eventual pending status flags.*/
|