STM32-P103: add real-time clock (RTC) driver

[bertos.git] / bertos / cpu / cortex-m3 / drv / clock_stm32.h

diff --git a/bertos/cpu/cortex-m3/drv/clock_stm32.h b/bertos/cpu/cortex-m3/drv/clock_stm32.h
index 2e7c09a3cf702b22d9f4f396b93d2219077d9c68..e91753d62a06498a7c9c2a7c47899ce7a72c60bc 100644 (file)
--- 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) */