1 files changed, 4 insertions, 4 deletions
diff --git a/os/hal/platforms/STM32/serial_lld.c b/os/hal/platforms/STM32/serial_lld.c
index fe9baea3d..4f7aee1e0 100644
--- a/os/hal/platforms/STM32/serial_lld.c
+++ b/os/hal/platforms/STM32/serial_lld.c
@@ -92,16 +92,16 @@ static void usart_init(SerialDriver *sdp, const SerialConfig *config) {
    * Baud rate setting.
    */
   if (sdp->usart == USART1)
-    u->BRR = APB2CLK / config->sc_speed;
+    u->BRR = STM32_PCLK2 / config->sc_speed;
   else
-    u->BRR = APB1CLK / config->sc_speed;
+    u->BRR = STM32_PCLK1 / config->sc_speed;
 
   /*
    * 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_TE |
+                            USART_CR1_RE;
   u->CR2 = config->sc_cr2 | USART_CR2_LBDIE;
   u->CR3 = config->sc_cr3 | USART_CR3_EIE;
   (void)u->SR;  /* SR reset step 1.*/