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-rw-r--r--os/hal/boards/ST_STM32F746G_DISCOVERY/board.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/os/hal/boards/ST_STM32F746G_DISCOVERY/board.h b/os/hal/boards/ST_STM32F746G_DISCOVERY/board.h
index 3e45e9101..cc26ca1f4 100644
--- a/os/hal/boards/ST_STM32F746G_DISCOVERY/board.h
+++ b/os/hal/boards/ST_STM32F746G_DISCOVERY/board.h
@@ -50,6 +50,8 @@
#define STM32_LSECLK 32768U
#endif
+#define STM32_LSEDRV (3U << 3U)
+
#if !defined(STM32_HSECLK)
#define STM32_HSECLK 25000000U
#endif