add support for cstx stm32f103re dtu board

board/CSTX_STM32F103RE_DTU/BSP/Inc/mcu_init.h

@@ -0,0 +1,22 @@
+#ifndef __MCU_INIT_H
+#define __MCU_INIT_H
+#ifdef __cplusplus
+ extern "C" {
+#endif
+
+#include "main.h"
+#include "stm32f1xx_hal.h"
+#include "i2c.h"
+#include "spi.h"
+#include "usart.h"
+#include "gpio.h"
+#include "tos_k.h"
+
+
+void board_init(void);
+void SystemClock_Config(void);
+
+#ifdef __cplusplus
+}
+#endif
+#endif /*__ __MCU_INIT_H */