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



void Usart1_Init(void)
{
	RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1, ENABLE);
	RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE);
	
	GPIO_InitTypeDef GPIO_InitStructure;
	GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
	GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;
	GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
	GPIO_Init(GPIOA, &GPIO_InitStructure);
	
	GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;
	GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;
	GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
	GPIO_Init(GPIOA, &GPIO_InitStructure);
	
	USART_InitTypeDef USART_InitStruture;
	USART_InitStruture.USART_BaudRate = 115200;
	USART_InitStruture.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
	USART_InitStruture.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;
	USART_InitStruture.USART_Parity = USART_Parity_No;
	USART_InitStruture.USART_StopBits = USART_StopBits_1;
	USART_InitStruture.USART_WordLength = USART_WordLength_8b;
	USART_Init(USART1, &USART_InitStruture);
	
	USART_ITConfig(USART1, USART_IT_RXNE, ENABLE);
	
	NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);
	
	NVIC_InitTypeDef NVIC_InitStructure;
	NVIC_InitStructure.NVIC_IRQChannel = USART1_IRQn;
	NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
	NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 3;
	NVIC_InitStructure.NVIC_IRQChannelSubPriority = 3;
	NVIC_Init(&NVIC_InitStructure);
	
	USART_Cmd(USART1, ENABLE);
	
}

// 串口打印日志
//void USART1_SendByte(uint8_t Byte)
//{
//	USART_SendData(USART1, Byte);
//	while(USART_GetFlagStatus(USART1, USART_FLAG_TXE) == RESET);
//}
//// 打印字节
//void USART1_SendArray(uint8_t * arr, uint16_t len)
//{
//	uint16_t i;
//	for(i = 0; i < len; i ++)
//	{
//		USART1_SendByte(arr[i]);
//	}
//}
//// 打印字符串
//void USART1_SendString(char *String)
//{
//	uint16_t i;
//	for(i = 0; String[i] != '\0'; i ++)
//	{
//		USART1_SendByte(String[i]);
//	}
//}
//// 打印的缓存
//char USART1_String[512];
//void USART1_Printf(char *format, ...)
//{
//	va_list arg;
//	va_start(arg, format);
//	vsprintf(USART1_String, format, arg);
//	va_end(arg);
//	USART1_SendString(USART1_String);
//}