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袁伟康2013

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1. 求大虾帮助啊，stm32串口通讯实现一个简单的计算 7/2736 stm32/stm8 2013-10-27
  
  谢谢啊，我已经搞明白了，我是最后退出的时候定义的静态数组没有处理好，没明白第二次输入字符串的过程，下次还给指点指点啊，:congratulate:
2. 急急急，stm32串口通讯卡死啦 4/5245 stm32/stm8 2013-10-27
  
  谢谢
3. 求大虾帮助啊，stm32串口通讯实现一个简单的计算 7/2736 stm32/stm8 2013-10-27
  
  我把它用静态变量存起来，结果是，比如第一次发1，能够计算，第二次发12也能计算，同样发的字符串越长也能计算，但是如果发了123，再发1，或者12，短的字符串就不能够计算了，这是怎么回事啊
4. 求大虾帮助啊，stm32串口通讯实现一个简单的计算 7/2736 stm32/stm8 2013-10-27
  
  什么意思？？我已经调试很多遍了就是接收的为空
5. 急急急，stm32串口通讯卡死啦 4/5245 stm32/stm8 2013-10-25
  
  就是串口通讯中，通过串口调试助手上显示，比如怎样实现10000-x
6. stm32,串口 2/2524 stm32/stm8 2013-10-24
  
  谢谢啦啊，那再问一下，USART1_Printf咋用啊？你有没有最新版本的库啊，很急:congratulate:
7. stm32外部中断，求大神指导 13/3925 stm32/stm8 2013-10-23
  
  :Cry: /*********************************************************************** 谢谢啊，再问一下，下面这个程序怎样设置优先级呢？怎样就能用一根中断线配置两个中断口，中断服务程序怎么写啊，求大神指导啊， ************************************************************************/ #include "stm32f10x.h" #include "string.h" /*********************************************************************** 外设时钟使能 ************************************************************************/ void RCC_Configuration(void) { /* 使能外设时钟 */ RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1 | RCC_APB2Periph_AFIO | RCC_APB2Periph_GPIOA | RCC_APB2Periph_GPIOB | RCC_APB2Periph_GPIOC | RCC_APB2Periph_GPIOD | RCC_APB2Periph_GPIOE, ENABLE); RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART2, ENABLE); } /******************************************************************************* 全部用到的引脚将在在配置 *******************************************************************************/ void GPIO_Configuration(void) { GPIO_InitTypeDef GPIO_InitStructure; // /* 配置串口1引脚 */ // GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9; // GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; // GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; // GPIO_Init(GPIOA, &GPIO_InitStructure); // GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10; // GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING; // GPIO_Init(GPIOA, &GPIO_InitStructure); /*外部中断引脚*/ GPIO_InitStructure.GPIO_Pin = GPIO_Pin_13; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU; GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; GPIO_Init(GPIOD, &GPIO_InitStructure); GPIO_InitStructure.GPIO_Pin = GPIO_Pin_13; GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU; GPIO_Init(GPIOE, &GPIO_InitStructure); GPIO_InitStructure.GPIO_Pin = GPIO_Pin_5; GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU; GPIO_Init(GPIOE, &GPIO_InitStructure); /*LED*/ GPIO_InitStructure.GPIO_Pin = GPIO_Pin_12; GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP; GPIO_Init(GPIOB, &GPIO_InitStructure); } /******************************************************************************* 全部中断在此配置 *******************************************************************************/ void NVIC_Configuration(void) { NVIC_InitTypeDef NVIC_InitStructure; /* Configure the NVIC Preemption Priority Bits */ NVIC_PriorityGroupConfig(NVIC_PriorityGroup_1); /* Enable the USART1 Interrupt */ // NVIC_InitStructure.NVIC_IRQChannel = USART1_IRQn; // NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0; // NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; // NVIC_Init(&NVIC_InitStructure); NVIC_InitStructure.NVIC_IRQChannel = EXTI9_5_IRQn; // S4中断入口 NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0; NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0; NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; NVIC_Init(&NVIC_InitStructure); // NVIC_InitStructure.NVIC_IRQChannel = EXTI0_IRQn; // S3中断入口 // NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0; // NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; // NVIC_Init(&NVIC_InitStructure); NVIC_InitStructure.NVIC_IRQChannel = EXTI15_10_IRQn; NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1; NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1; NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; NVIC_Init(&NVIC_InitStructure); } /******************************************************************************* 外部中断在此配置 *******************************************************************************/ void EXTI_Configuration(void) { EXTI_InitTypeDef EXTI_InitStructure; GPIO_EXTILineConfig(GPIO_PortSourceGPIOD, GPIO_PinSource13); // S4中断 EXTI_InitStructure.EXTI_Line = EXTI_Line13; EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt; EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling; EXTI_InitStructure.EXTI_LineCmd = ENABLE; EXTI_Init(&EXTI_InitStructure); GPIO_EXTILineConfig(GPIO_PortSourceGPIOE, GPIO_PinSource13); // S3中断 EXTI_InitStructure.EXTI_Line = EXTI_Line13; EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt; EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling; EXTI_InitStructure.EXTI_LineCmd = ENABLE; EXTI_Init(&EXTI_InitStructure); GPIO_EXTILineConfig(GPIO_PortSourceGPIOE, GPIO_PinSource5); // S3中断 EXTI_InitStructure.EXTI_Line = EXTI_Line5; EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt; EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling; EXTI_InitStructure.EXTI_LineCmd = ENABLE; EXTI_Init(&EXTI_InitStructure); //EXTI_GenerateSWInterrupt(EXTI_Line13); } /******************************************************************************* 初始化时钟晶振 72MHZ *******************************************************************************/ void SysClock_Init(void) { ErrorStatus HSEStartUpStatus; RCC_DeInit(); RCC_HSEConfig(RCC_HSE_ON); HSEStartUpStatus = RCC_WaitForHSEStartUp(); if(HSEStartUpStatus == SUCCESS){ FLASH_PrefetchBufferCmd(FLASH_PrefetchBuffer_Enable); FLASH_SetLatency(FLASH_Latency_2); RCC_HCLKConfig(RCC_SYSCLK_Div1); RCC_PCLK2Config(RCC_HCLK_Div1); RCC_PCLK1Config(RCC_HCLK_Div2); RCC_PLLConfig(RCC_PLLSource_HSE_Div1, RCC_PLLMul_9); RCC_PLLCmd(ENABLE); while(RCC_GetFlagStatus(RCC_FLAG_PLLRDY) == RESET){ ; } RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK); while(RCC_GetSYSCLKSource() != 0x08){ ; } } } /***************************************************************** USART1 初始化 baud 波特率 *****************************************************************/ void USART1_Init(unsigned int baud) { USART_InitTypeDef USART_InitStructure; USART_InitStructure.USART_BaudRate = baud; 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_Rx | USART_Mode_Tx; USART_Init(USART1, &USART_InitStructure); USART_ITConfig(USART1, USART_IT_RXNE, ENABLE); USART_Cmd(USART1, ENABLE); } /***************************************************************** 从 USART1 发送一个字节 *****************************************************************/ void USART1_SendByte(unsigned char temp) { USART_SendData(USART1, temp); while(USART_GetFlagStatus(USART1, USART_FLAG_TXE) == RESET); } /***************************************************************** 从 USART1 发送字符串 *****************************************************************/ void USART1_Printf(char *pch) { while(*pch != '\0'){ USART1_SendByte(*(unsigned char *)pch); pch++; } } /****************************************** * * 延时程序 ms * ****************************************/ void Delay(unsigned short time) { unsigned short i, j; for(; time > 0; time--){ for(j = 0; j < 10; j++){ for(i = 0; i < 1000; i++); } } } /******************************************************* MAIN 函数 *******************************************************/ int main(void) { SysClock_Init(); // 初始化系统时钟 72MHZ RCC_Configuration(); // 使能外设 GPIO_Configuration(); // 配置引脚 NVIC_Configuration(); // 配置中断 EXTI_Configuration(); // USART1_Init(9600); // 配置串口1，波特率9600 // // USART1_Printf("火牛开发板基础实验"); while(1){ ; } // return(0); }
8. stm32外部中断，求大神指导 13/3925 stm32/stm8 2013-10-23
  
  /*********************************************************************** 谢谢啊:) ，再问一下，下面这个程序怎样设置优先级呢？怎样就能用一根中断线配置两个中断口，中断服务程序怎么写啊，:) 求大神指导啊， ************************************************************************/ #include "stm32f10x.h" #include "string.h" /*********************************************************************** 外设时钟使能 ************************************************************************/ void RCC_Configuration(void) { /* 使能外设时钟 */ RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1 | RCC_APB2Periph_AFIO | RCC_APB2Periph_GPIOA | RCC_APB2Periph_GPIOB | RCC_APB2Periph_GPIOC | RCC_APB2Periph_GPIOD | RCC_APB2Periph_GPIOE, ENABLE); RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART2, ENABLE); } /******************************************************************************* 全部用到的引脚将在在配置 *******************************************************************************/ void GPIO_Configuration(void) { GPIO_InitTypeDef GPIO_InitStructure; // /* 配置串口1引脚 */ // GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9; // GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; // GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; // GPIO_Init(GPIOA, &GPIO_InitStructure); // GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10; // GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING; // GPIO_Init(GPIOA, &GPIO_InitStructure); /*外部中断引脚*/ GPIO_InitStructure.GPIO_Pin = GPIO_Pin_13; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU; GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; GPIO_Init(GPIOD, &GPIO_InitStructure); GPIO_InitStructure.GPIO_Pin = GPIO_Pin_13; GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU; GPIO_Init(GPIOE, &GPIO_InitStructure); GPIO_InitStructure.GPIO_Pin = GPIO_Pin_5; GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU; GPIO_Init(GPIOE, &GPIO_InitStructure); /*LED*/ GPIO_InitStructure.GPIO_Pin = GPIO_Pin_12; GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP; GPIO_Init(GPIOB, &GPIO_InitStructure); } /******************************************************************************* 全部中断在此配置 *******************************************************************************/ void NVIC_Configuration(void) { NVIC_InitTypeDef NVIC_InitStructure; /* Configure the NVIC Preemption Priority Bits */ NVIC_PriorityGroupConfig(NVIC_PriorityGroup_1); /* Enable the USART1 Interrupt */ // NVIC_InitStructure.NVIC_IRQChannel = USART1_IRQn; // NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0; // NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; // NVIC_Init(&NVIC_InitStructure); NVIC_InitStructure.NVIC_IRQChannel = EXTI9_5_IRQn; // S4中断入口 NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0; NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0; NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; NVIC_Init(&NVIC_InitStructure); // NVIC_InitStructure.NVIC_IRQChannel = EXTI0_IRQn; // S3中断入口 // NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0; // NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; // NVIC_Init(&NVIC_InitStructure); NVIC_InitStructure.NVIC_IRQChannel = EXTI15_10_IRQn; NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1; NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1; NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; NVIC_Init(&NVIC_InitStructure); } /******************************************************************************* 外部中断在此配置 *******************************************************************************/ void EXTI_Configuration(void) { EXTI_InitTypeDef EXTI_InitStructure; GPIO_EXTILineConfig(GPIO_PortSourceGPIOD, GPIO_PinSource13); // S4中断 EXTI_InitStructure.EXTI_Line = EXTI_Line13; EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt; EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling; EXTI_InitStructure.EXTI_LineCmd = ENABLE; EXTI_Init(&EXTI_InitStructure); GPIO_EXTILineConfig(GPIO_PortSourceGPIOE, GPIO_PinSource13); // S3中断 EXTI_InitStructure.EXTI_Line = EXTI_Line13; EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt; EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling; EXTI_InitStructure.EXTI_LineCmd = ENABLE; EXTI_Init(&EXTI_InitStructure); GPIO_EXTILineConfig(GPIO_PortSourceGPIOE, GPIO_PinSource5); // S3中断 EXTI_InitStructure.EXTI_Line = EXTI_Line5; EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt; EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling; EXTI_InitStructure.EXTI_LineCmd = ENABLE; EXTI_Init(&EXTI_InitStructure); //EXTI_GenerateSWInterrupt(EXTI_Line13); } /******************************************************************************* 初始化时钟晶振 72MHZ *******************************************************************************/ void SysClock_Init(void) { ErrorStatus HSEStartUpStatus; RCC_DeInit(); RCC_HSEConfig(RCC_HSE_ON); HSEStartUpStatus = RCC_WaitForHSEStartUp(); if(HSEStartUpStatus == SUCCESS){ FLASH_PrefetchBufferCmd(FLASH_PrefetchBuffer_Enable); FLASH_SetLatency(FLASH_Latency_2); RCC_HCLKConfig(RCC_SYSCLK_Div1); RCC_PCLK2Config(RCC_HCLK_Div1); RCC_PCLK1Config(RCC_HCLK_Div2); RCC_PLLConfig(RCC_PLLSource_HSE_Div1, RCC_PLLMul_9); RCC_PLLCmd(ENABLE); while(RCC_GetFlagStatus(RCC_FLAG_PLLRDY) == RESET){ ; } RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK); while(RCC_GetSYSCLKSource() != 0x08){ ; } } } /***************************************************************** USART1 初始化 baud 波特率 *****************************************************************/ void USART1_Init(unsigned int baud) { USART_InitTypeDef USART_InitStructure; USART_InitStructure.USART_BaudRate = baud; 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_Rx | USART_Mode_Tx; USART_Init(USART1, &USART_InitStructure); USART_ITConfig(USART1, USART_IT_RXNE, ENABLE); USART_Cmd(USART1, ENABLE); } /***************************************************************** 从 USART1 发送一个字节 *****************************************************************/ void USART1_SendByte(unsigned char temp) { USART_SendData(USART1, temp); while(USART_GetFlagStatus(USART1, USART_FLAG_TXE) == RESET); } /***************************************************************** 从 USART1 发送字符串 *****************************************************************/ void USART1_Printf(char *pch) { while(*pch != '\0'){ USART1_SendByte(*(unsigned char *)pch); pch++; } } /****************************************** * * 延时程序 ms * ****************************************/ void Delay(unsigned short time) { unsigned short i, j; for(; time > 0; time--){ for(j = 0; j < 10; j++){ for(i = 0; i < 1000; i++); } } } /******************************************************* MAIN 函数 *******************************************************/ int main(void) { SysClock_Init(); // 初始化系统时钟 72MHZ RCC_Configuration(); // 使能外设 GPIO_Configuration(); // 配置引脚 NVIC_Configuration(); // 配置中断 EXTI_Configuration(); // USART1_Init(9600); // 配置串口1，波特率9600 // // USART1_Printf("火牛开发板基础实验"); while(1){ ; } // return(0); }
9. stm32外部中断，求大神指导 13/3925 stm32/stm8 2013-10-23
  
  心情一急给忘了说问题，中断通道怎样用EXTI9_5_IRQn ，谢谢大神啊
10. stm32外部中断，求大神指导 13/3925 stm32/stm8 2013-10-23
  
  心情一急给忘了说问题，中断通道怎样用EXTI9_5_IRQn
11. stm32外部中断，求大神指导 13/3925 stm32/stm8 2013-10-23
  
  怎样使用中断通道EXTI9_5_IRQn:Sad:
12. stm32外部中断，求大神指导 13/3925 stm32/stm8 2013-10-23
  
  我是想说我的没现象:Sad:

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