1 files changed, 30 insertions, 0 deletions
diff --git a/rcc/crs.h b/rcc/crs.h
new file mode 100644
index 0000000..8c1cf68
--- /dev/null
+++ b/rcc/crs.h
@@ -0,0 +1,30 @@
+#ifndef CRS_H
+#define CRS_H
+
+#include <stdint.h>
+
+struct CRS_reg_t {
+	volatile uint32_t CR;
+	volatile uint32_t CFGR;
+	volatile uint32_t ISR;
+	volatile uint32_t ICR;
+};
+
+class CRS_t {
+	public:
+		CRS_reg_t& reg;
+		
+		CRS_t(uint32_t reg_addr) : reg(*(CRS_reg_t*)reg_addr) {}
+		
+		void enable() {
+			reg.CR |= (1 << 6) | (1 << 5); // AUTOTRIMEN, CEN
+		}
+};
+
+#if defined(STM32L0)
+static CRS_t CRS(0x40006c00);
+#endif
+
+void flash_init();
+
+#endif