X-Git-Url: https://codewiz.org/gitweb?a=blobdiff_plain;f=bertos%2Fcpu%2Fcortex-m3%2Fdrv%2Fclock_stm32.h;h=e91753d62a06498a7c9c2a7c47899ce7a72c60bc;hb=735984679c58835b6e2db48ecec1b0fdc674f6f7;hp=2e7c09a3cf702b22d9f4f396b93d2219077d9c68;hpb=34e7bdf2eff0873117cbb36d4fd4ea7e8d62bc3d;p=bertos.git

diff --git a/bertos/cpu/cortex-m3/drv/clock_stm32.h b/bertos/cpu/cortex-m3/drv/clock_stm32.h
index 2e7c09a3..e91753d6 100644
--- a/bertos/cpu/cortex-m3/drv/clock_stm32.h
+++ b/bertos/cpu/cortex-m3/drv/clock_stm32.h
@@ -240,6 +240,14 @@
 #define RCC_APB2_SPI1              (0x00001000)
 #define RCC_APB2_USART1            (0x00004000)
 #define RCC_APB2_ALL               (0x00005E7D)
+
+/**
+ * RCC register:  BCDR
+ */
+#define RCC_BDCR_LSEON             (0x00000001)
+#define RCC_BDCR_LSERDY            (0x00000002)
+#define RCC_BDCR_RTCSEL            (0x00000300)
+#define RCC_BDCR_RTCEN             (0x00008000)
 /*\}*/
 
 /* Crystal frequency of the main oscillator (8MHz) */