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-rw-r--r--libmaple/libmaple.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/libmaple/libmaple.h b/libmaple/libmaple.h
index 417d732..664568f 100644
--- a/libmaple/libmaple.h
+++ b/libmaple/libmaple.h
@@ -101,7 +101,8 @@
#define NR_GPIO_PORTS 7
#define NR_GPIO_PINS 63
#define NR_TIMERS 8
- #define NR_USART 3
+ // 3 USART, plus UART4 and UART5
+ #define NR_USART 5
#define NR_FSMC 1
#define NR_DAC_PINS 2