Use HSI with CAN-based time synchronization

Core/Inc/AMS_CAN.h

@@ -17,6 +17,7 @@
 #include <stdint.h>
 
 #define CAN_ID_SLAVE_ERROR 0x001
+#define CAN_ID_TIME_SYNC 0x002
 #define CAN_ID_AMS_SLAVE_HEARTBEAT_BASE 0x600
 #define CAN_HEARTBEAT_TX_TIMEOUT 10 /* ms */
 

Core/Inc/TimeSync.h

@@ -0,0 +1,13 @@
+#ifndef INC_TIME_SYNC_H_
+#define INC_TIME_SYNC_H_
+
+#define TARGET_FREQ 16000000    // Hz
+#define TRIM_FREQ 48000         // Hz
+#define TIME_SYNC_INTERVAL 1000 // ms
+#define RCC_CR_HSITRIM_MAX 31
+
+#define STARTUP_TIME_SYNC_TIME 5000 // ms
+
+void time_sync_handle_frame();
+
+#endif // INC_TIME_SYNC_H_