#include "stm32f10x.h"
#include "string.h"
#include "stdio.h"
void delay(void);
void GPIO_Configuration(void);
void uart_init();
extern void USART_OUT(USART_TypeDef* USARTx, uint16_t *Data,...);
void RCC_Configuration(void)
{
SystemInit();
RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1|
RCC_APB2Periph_GPIOA|
RCC_APB2Periph_GPIOB|
RCC_APB2Periph_GPIOD |
RCC_APB2Periph_AFIO|
RCC_APB2Periph_GPIOC,ENABLE);
RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART2,ENABLE);
}
void NVIC_Configuration(void)
{
NVIC_InitTypeDef NVIC_InitStructure;
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_0);
NVIC_InitStructure.NVIC_IRQChannel = USART1_IRQn|USART2_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
}
void UART_PutChar(USART_TypeDef* USARTx, uint8_t Data)
{
USART_SendData(USARTx, Data);
while(USART_GetFlagStatus(USARTx, USART_FLAG_TC) == RESET){}
}
void UART_PutStr (USART_TypeDef* USARTx, uint8_t *str)
{
while (0 != *str)
{
UART_PutChar(USARTx, *str);
str++;
}
}
int main(void)
{
RCC_Configuration();
GPIO_Configuration();
NVIC_Configuration();
uart_init();
while(1)
{
GPIO_ResetBits(GPIOC,GPIO_Pin_7|GPIO_Pin_9|GPIO_Pin_13);
delay();
GPIO_SetBits(GPIOC,GPIO_Pin_6|GPIO_Pin_8|GPIO_Pin_13);
delay();
GPIO_ResetBits(GPIOC,GPIO_Pin_6|GPIO_Pin_8|GPIO_Pin_13);
delay();
GPIO_SetBits(GPIOC,GPIO_Pin_7|GPIO_Pin_9|GPIO_Pin_13);
delay();
//USART_SendData(USART1, '1');
UART_PutStr(USART1,(uint8_t*)("234"));
UART_PutStr(USART2,(uint8_t*)("234"));
}
}
void GPIO_Configuration(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
GPIO_InitStructure.GPIO_Pin=GPIO_Pin_6|GPIO_Pin_7|GPIO_Pin_8|GPIO_Pin_9|GPIO_Pin_13;
GPIO_InitStructure.GPIO_Speed=GPIO_Speed_50MHz; GPIO_InitStructure.GPIO_Mode=GPIO_Mode_Out_PP;
GPIO_Init(GPIOC,&GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9|GPIO_Pin_2;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_Init(GPIOA, &GPIO_InitStructure);
/* Configure USART2 Rx (PA.03) as input floating */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10|GPIO_Pin_3;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;
GPIO_Init(GPIOA, &GPIO_InitStructure);
}
void uart_init()
{
USART_InitTypeDef USART_InitStructure;
USART_InitStructure.USART_BaudRate = 115200;
USART_InitStructure.USART_WordLength = USART_WordLength_8b;
USART_InitStructure.USART_StopBits = USART_StopBits_1;
USART_InitStructure.USART_Parity = USART_Parity_No;
USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
USART_InitStructure.USART_Mode = USART_Mode_Tx | USART_Mode_Rx;
USART_Init(USART1, &USART_InitStructure);
USART_ITConfig(USART1, USART_IT_RXNE, ENABLE);
USART_ITConfig(USART1, USART_IT_TXE, ENABLE);
USART_Init(USART2, &USART_InitStructure);
USART_ITConfig(USART2, USART_IT_RXNE, ENABLE);
USART_ITConfig(USART2, USART_IT_TXE, ENABLE);
USART_Cmd(USART1, ENABLE);
USART_Cmd(USART2, ENABLE);
}
void USART1_IRQHandler(void) //′®¿ú1 ÖD¶Ï·tÎñ3ìDò
{
static u8 RX_dat[256]={0};static int i;
if(USART_GetITStatus(USART1,USART_IT_RXNE)==SET)//USART_IT_RXNE￡o½óêÕÖD¶Ï
{
USART_ClearITPendingBit(USART1,USART_IT_RXNE);
RX_dat[i++]=USART_ReceiveData(USART1);
}
if(RX_dat[0]=='{' && RX_dat[i-1]=='}')
{
//UART_PutStr(USART2,"fdg");
}
}
void USART2_IRQHandler(void) //′®¿ú2 ÖD¶Ï·tÎñ3ìDò
{
unsigned int i;
}
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