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-rw-r--r--boards/ST_STM32L_DISCOVERY/board.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/boards/ST_STM32L_DISCOVERY/board.h b/boards/ST_STM32L_DISCOVERY/board.h
index 9e6802b26..46e2965fd 100644
--- a/boards/ST_STM32L_DISCOVERY/board.h
+++ b/boards/ST_STM32L_DISCOVERY/board.h
@@ -36,7 +36,7 @@
* NOTE: The HSE crystal is not fitted by default on the board.
*/
#define STM32_LSECLK 32768
-#define STM32_HSECLK 0
+#define STM32_HSECLK 8000000
/*
* MCU type as defined in the ST header file stm32l1xx.h.