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-rw-r--r--src/stm32/stm32f0_serial.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/src/stm32/stm32f0_serial.c b/src/stm32/stm32f0_serial.c
index bb4ec69a..4e0f39fe 100644
--- a/src/stm32/stm32f0_serial.c
+++ b/src/stm32/stm32f0_serial.c
@@ -87,8 +87,10 @@
#endif
#if CONFIG_MACH_STM32G0
- // The stm32g0 has slightly different register names
- #define USART2_IRQn USART2_LPUART2_IRQn
+ // Some of the stm32g0 MCUs have slightly different register names
+ #ifdef LPUART2
+ #define USART2_IRQn USART2_LPUART2_IRQn
+ #endif
#define USART_CR1_RXNEIE USART_CR1_RXNEIE_RXFNEIE
#define USART_CR1_TXEIE USART_CR1_TXEIE_TXFNFIE
#define USART_ISR_RXNE USART_ISR_RXNE_RXFNE