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#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; //ÉèÖô®¿Ú1ÖÐ¶Ï NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0; //ÇÀÕ¼ÓÅÏȼ¶ 0 NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0; //×ÓÓÅÏȼ¶Îª0 NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; //ʹÄÜ 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; //USART1 TX GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; //¸´ÓÃÍÆÍìÊä³ö GPIO_Init(GPIOA, &GPIO_InitStructure); //A¶Ë¿Ú /* Configure USART2 Rx (PA.03) as input floating */ GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10|GPIO_Pin_3; //USART1 RX GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU; //¸´ÓÿªÂ©ÊäÈë GPIO_Init(GPIOA, &GPIO_InitStructure); //A¶Ë¿Ú } 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); //ʹÄܽÓÊÕÖÐ¶Ï USART_ITConfig(USART1, USART_IT_TXE, ENABLE); //ʹÄÜ·¢ËÍ»º³å¿ÕÖÐ¶Ï USART_Init(USART2, &USART_InitStructure); USART_ITConfig(USART2, USART_IT_RXNE, ENABLE); //ʹÄܽÓÊÕÖÐ¶Ï USART_ITConfig(USART2, USART_IT_TXE, ENABLE); //ʹÄÜ·¢ËÍ»º³å¿ÕÖÐ¶Ï USART_Cmd(USART1, ENABLE); USART_Cmd(USART2, ENABLE); } void USART1_IRQHandler(void) //´®¿Ú1 ÖжϷþÎñ³ÌÐò { static u8 RX_dat[256]={0};static int i; if(USART_GetITStatus(USART1,USART_IT_RXNE)==SET)//USART_IT_RXNE£º½ÓÊÕÖÐ¶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 ÖжϷþÎñ³ÌÐò { unsigned int i; } |
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