#ifndef USART_H
#define USART_H

#ifdef __cplusplus
extern "C"
{
#endif

#include "stm32f10x.h"
#include "stdarg.h"
#include "stdio.h"

    // Initilaize the serial, First Parameter:USART1,USART2,USART3; 2nd Para:bits rate; 3rd: IO reuse
    void USART_InitGPIO(uint8_t USART_Channel, uint32_t BaudRate, uint8_t GPIO_AF);
    void USART_PutChar(uint8_t USART_Channel, uint8_t Tx_Byte);   // USARTx to print 1 byte
    void USART_printf(USART_TypeDef *USARTx, uint8_t *Data, ...); // format output as printf in C standard library

    // int fputc(int ch, FILE *f);

#ifdef __cplusplus
}
#endif

#endif // #ifndef USART_H