通过USART串口实现单片机printf()调试

日志返回日志列表通过USART串口实现单片机printf()调试 编辑于 2018-9-18 16:53 阅读(0)赞 评论 转载 分享 复制地址 编辑上一篇 | 已经是最后一篇开通黄钻通过USART串口实现单片机printf()调试通过USART串口实现单片机printf()调试图片图片图片资料参照《零死角玩转STM32-中极篇》。不知如何在没有硬件环境下仿真编码器模式接口/MAIN.CTIM3编码器模式TIM2PWM模式**********/#includestm32f10x_lib.h#includestdio.hTIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;TIM_OCInitTypeDef TIM_OCInitStructure;TIM_ICInitTypeDef TIM_ICInitStructure;USART_InitTypeDef USART_InitStructure;USART_ClockInitTypeDef USART_ClockInitStructure;vu16 CCR1_Val 0x8000;vu16 CCR2_Val 0x4000;//vu16 CCR3_Val 0x2000;//vu16 CCR4_Val 0x1000;ErrorStatus HSEStartUpStatus ;void RCC_Configuration(void );void GPIO_Configuration(void );void NVIC_Configuration(void );//void TIMER2_Init(void);//void TIMER2_PWM_Init(void);void Tim3_Init(void);void TIMER2_PWM_Init(void);void UART2_Init(void);void Delay();int fputc(int ch,FILE * f);int main(){//FLASH-ACR 0x00000012;//__EFI_ACR_Val;RCC_Configuration( );GPIO_Configuration( );//NVIC_Configuration( );Tim3_Init();TIMER2_PWM_Init();UART2_Init();while(1){}}int fputc(int ch,FILE * f) //重定向printf()函数是调用了重定向fputc函数通过串口打出来到串口调试助手{USART_SendData(USART2,(unsigned char)ch);while(USART_GetFlagStatus(USART2,USART_FLAG_TC)RESET){}return(ch);}void UART2_Init(){USART_InitStructure.USART_BaudRate9600;//波特率USART_InitStructure.USART_WordLengthUSART_WordLength_8b; //8数据位USART_InitStructure.USART_StopBitsUSART_StopBits_1; //1停止位USART_InitStructure.USART_ParityUSART_Parity_No; //无奇偶校验位USART_InitStructure.USART_ModeUSART_Mode_Tx; //发送使能USART_InitStructure.USART_HardwareFlowControlUSART_HardwareFlowControl_None; //无流控USART_Init(USART2,USART_InitStructure);USART_ClockInitStructure.USART_Clock USART_Clock_Disable; //串口时钟禁止USART_ClockInitStructure.USART_CPOLUSART_CPOL_High; //高边缘有效USART_ClockInitStructure.USART_CPHAUSART_CPHA_1Edge; //数据在第一个时钟边缘被捕获USART_ClockInitStructure.USART_LastBitUSART_LastBit_Disable;//USART_ClockInit(USART2,USART_ClockInitStructure); //USART_Cmd(USART2, ENABLE);//串口2使能while(1){Delay(10000);USART_SendData(USART2,TIM3-CNT);//printf(“woshi”);while(USART_GetFlagStatus(USART2,USART_FLAG_TC)RESET){}Delay(10000);//printf(“woshi\r\n”);printf(“TIM3-CNT%d”,TIM3-CNT);}}void Tim3_Init(void){/配置时间基******/TIM_TimeBaseStructure.TIM_Period 0xFFFF; //周期计数TIM_TimeBaseStructure.TIM_Prescaler 0xFFF;//分频TIM_TimeBaseStructure.TIM_ClockDivision 0x0; //时钟分割TIM_TimeBaseStructure.TIM_CounterMode TIM_CounterMode_Up; //向上计数//TIM_TimeBaseStructure.TIM_RepetitionCounter 0x03;TIM_TimeBaseInit(TIM3,TIM_TimeBaseStructure);TIM_EncoderInterfaceConfig(TIM3, TIM_EncoderMode_TI12,TIM_ICPolarity_Rising , TIM_ICPolarity_Rising); //编码模式3TIM_ICStructInit(TIM_ICInitStructure);TIM_ICInitStructure.TIM_ICFilter 2;//ICx_FILTER;2次滤波 比较滤波器TIM_ICInit(TIM3, TIM_ICInitStructure);// Clear all pending interruptsTIM_ClearFlag(TIM3, TIM_FLAG_Update);//清中断标志位//Reset counter设定初始值TIM_SetCounter(TIM3, 0x7ff1);//使能计数器TIM_Cmd(TIM3, ENABLE);//TIM_ITConfig(TIM2,TIM_IT_CC1,ENABLE);}/*****************************************************************/void TIMER2_PWM_Init(void){/配置时间基******/TIM_TimeBaseStructure.TIM_Period 0xFFFF;TIM_TimeBaseStructure.TIM_Prescaler 0xFF;//分频TIM_TimeBaseStructure.TIM_ClockDivision 0x0; //时钟分割TIM_TimeBaseStructure.TIM_CounterMode TIM_CounterMode_Up; //向上计数TIM_TimeBaseStructure.TIM_RepetitionCounter 0x03;TIM_TimeBaseInit(TIM2,TIM_TimeBaseStructure);TIM_OCInitStructure.TIM_OCMode TIM_OCMode_PWM1; //模式// TIM_OCInitStructure.TIM_Channel TIM_Channel_1;TIM_OCInitStructure.TIM_OutputStateTIM_OutputState_Enable;TIM_OCInitStructure.TIM_PulseCCR1_Val;TIM_OCInitStructure.TIM_OCPolarityTIM_OCPolarity_Low;TIM_OC1Init(TIM2,TIM_OCInitStructure);TIM_OC1PreloadConfig(TIM2,TIM_OCPreload_Disable);/**********************/TIM_Cmd(TIM2,ENABLE);TIM_ITConfig(TIM2,TIM_IT_CC1,ENABLE);}void RCC_Configuration(void){RCC_DeInit();RCC_HSEConfig(RCC_HSE_ON);HSEStartUpStatus RCC_WaitForHSEStartUp();if(HSEStartUpStatus SUCCESS){RCC_HCLKConfig(RCC_SYSCLK_Div1);RCC_PCLK2Config(RCC_HCLK_Div1);RCC_PCLK1Config(RCC_HCLK_Div2);FLASH_SetLatency(FLASH_Latency_2);FLASH_PrefetchBufferCmd(FLASH_PrefetchBuffer_Enable);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){}}RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM3|RCC_APB1Periph_TIM2,ENABLE);RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB|RCC_APB2Periph_GPIOA,ENABLE);RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART2,ENABLE);}void GPIO_Configuration(void ){GPIO_InitTypeDef GPIO_InitStructure;GPIO_DeInit(GPIOB);GPIO_InitStructure.GPIO_Pin GPIO_Pin_8|GPIO_Pin_9|GPIO_Pin_7|GPIO_Pin_6|GPIO_Pin_5|GPIO_Pin_4|GPIO_Pin_3|GPIO_Pin_2|GPIO_Pin_1|GPIO_Pin_0;GPIO_InitStructure.GPIO_Mode GPIO_Mode_IN_FLOATING;GPIO_InitStructure.GPIO_SpeedGPIO_Speed_50MHz;GPIO_Init(GPIOB,GPIO_InitStructure);GPIO_DeInit(GPIOA);GPIO_InitStructure.GPIO_Pin GPIO_Pin_8|GPIO_Pin_9|GPIO_Pin_7|GPIO_Pin_6|GPIO_Pin_5|GPIO_Pin_4|GPIO_Pin_3|GPIO_Pin_2|GPIO_Pin_1|GPIO_Pin_0;GPIO_InitStructure.GPIO_Mode GPIO_Mode_AF_PP;GPIO_InitStructure.GPIO_SpeedGPIO_Speed_50MHz;GPIO_Init(GPIOA,GPIO_InitStructure);// GPIO_PinAFConfig(GPIOB,GPIO_PinSource6,GPIO_AF_TIM4);// GPIO_PinAFConfig(GPIOB,GPIO_PinSource7,GPIO_AF_TIM4);}/**void NVIC_Configuration(void){NVIC_InitTypeDef NVIC_InitStructure;#ifdef VECT_TAB_RAMNVIC_SetVectorTable(NVIC_VectTab_RAM,0x0);#elseNVIC_SetVectorTable(NVIC_VectTab_FLASH,0x0);#endifNVIC_InitStructure.NVIC_IRQChannel TIM2_IRQChannel;NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority 0;NVIC_InitStructure.NVIC_IRQChannelSubPriority 0;NVIC_InitStructure.NVIC_IRQChannelCmd ENABLE;NVIC_Init(NVIC_InitStructure);}**/void Delay(int num){int i,k;for(inum;i0;i–){for(k100;k0;k–){;}}}