STM32F103
出租车计价源码
单片机源程序如下:
- #include "stm32f10x.h"
- #include "Motor.h"
- #include "stdio.h"
- #include "delay.h"
- #include "lcd.h"
- #define ADC1_DR_Address ((uint32_t)0x4001244C)
- __IO uint16_t ADCConvertedValue;
- u16 RxData;
- float JiaGe = 0;
- uint16_t ZuoLunQuanShu = 0;
- uint16_t YouLunQuanShu = 0;
- void RCC_Configuration(void);
- void GPIO_Configuration(void);
- void USART_Configuration(void);
- void ADC1_Init(void);
- void DMA(void);
- void T1_ETR_InitConfig(void);
- void T2_ETR_InitConfig(void);
- void yaokong(void);
- void sudutiaojie(void);
- void TIM4_PWM(void);
- void gengxinjijia(void);
- int main()
- {
- RCC_Configuration();
- GPIO_Configuration();
- USART_Configuration();
- ADC1_Init();
- DMA();
- TIM4_PWM();
- T1_ETR_InitConfig();
- T2_ETR_InitConfig();
- lcd_int();
- while(1)
- {
- yaokong();
- sudutiaojie();
- gengxinjijia();
- }
- }
- void gengxinjijia(void)
- {
- LCD_DisplayFloat_WithAddress(3,30,JiaGe);
- }
- void sudutiaojie(void)
- {
- ZuoLunQuanShu = TIM_GetCounter(TIM1);
- YouLunQuanShu = TIM_GetCounter(TIM2);
- JiaGe = JiaGe+(ZuoLunQuanShu+YouLunQuanShu)/2*0.001;
- TIM_SetCounter(TIM1, 0);
- TIM_SetCounter(TIM2, 0);
- if(ZuoLunQuanShu > YouLunQuanShu)
- {
- TIM_SetCompare4(TIM4, 5000);
- TIM_SetCompare3(TIM4, 4500);
- }
- else
- {
- TIM_SetCompare4(TIM4, 4500);
- TIM_SetCompare3(TIM4, 5000);
- }
- delay_ms(500);
- }
- void yaokong(void)
- {
- static unsigned char biaozhi = 0;
- if(USART_GetFlagStatus(USART1,USART_FLAG_RXNE) == SET)
- {
- USART_ClearFlag(USART1, USART_FLAG_RXNE);
- RxData = USART_ReceiveData(USART1);
- if(RxData == 0x01)
- {
- QianJin();
- if(biaozhi == 0)
- {
- JiaGe = 8;
- biaozhi = 1;
- printf("ADC1_Channel(PA0)_ConverValue:%.3fm\n\r",((float)ADCConvertedValue*3.3/4096));
- if (ADCConvertedValue*3.3/4096<1)
- {
- ZuoZhuan();
- }
- }
- }
- if(RxData == 0x02)
- {
- HouTui();
- }
- if(RxData == 0x03)
- {
- ZuoZhuan();
- }
- if(RxData == 0x04)
- {
- YouZhuan();
- }
- if(RxData == 0x00)
- {
- TingZhi();
- }
- }
- }
- void RCC_Configuration(void)
- {
- RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA1, ENABLE);
- RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM4,ENABLE);
- RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO,ENABLE);
- RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1|RCC_APB2Periph_GPIOA|\
- RCC_APB2Periph_GPIOB|RCC_APB2Periph_GPIOC|RCC_APB2Periph_ADC1 ,ENABLE);
-
- }
-
- void GPIO_Configuration(void)
- {
- GPIO_InitTypeDef GPIO_InitSructure;
- GPIO_InitSructure.GPIO_Pin = GPIO_Pin_9;
- GPIO_InitSructure.GPIO_Mode = GPIO_Mode_AF_PP;
- GPIO_InitSructure.GPIO_Speed = GPIO_Speed_50MHz;
- GPIO_Init(GPIOA,&GPIO_InitSructure);
- GPIO_InitSructure.GPIO_Pin = GPIO_Pin_10;
- GPIO_InitSructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
- GPIO_Init(GPIOA,&GPIO_InitSructure);
-
- GPIO_InitSructure.GPIO_Pin = GPIO_Pin_8|GPIO_Pin_9|GPIO_Pin_10|GPIO_Pin_11;
- GPIO_InitSructure.GPIO_Speed = GPIO_Speed_2MHz;
- GPIO_InitSructure.GPIO_Mode = GPIO_Mode_Out_PP;
- GPIO_Init(GPIOC, &GPIO_InitSructure);
- GPIO_InitSructure.GPIO_Pin = GPIO_Pin_8|GPIO_Pin_9;
- GPIO_InitSructure.GPIO_Speed = GPIO_Speed_2MHz;
- GPIO_InitSructure.GPIO_Mode = GPIO_Mode_AF_PP;
- GPIO_Init(GPIOB, &GPIO_InitSructure);
-
- GPIO_InitSructure.GPIO_Pin = GPIO_Pin_0|GPIO_Pin_1|GPIO_Pin_2|GPIO_Pin_3|GPIO_Pin_4;
- GPIO_InitSructure.GPIO_Speed = GPIO_Speed_2MHz;
- GPIO_InitSructure.GPIO_Mode = GPIO_Mode_Out_PP;
- GPIO_Init(GPIOC, &GPIO_InitSructure);
- }
- void USART_Configuration(void)
- {
- USART_InitTypeDef USART_InitSructure;
- USART_InitSructure.USART_BaudRate = 9600;
- USART_InitSructure.USART_WordLength = USART_WordLength_8b;
- USART_InitSructure.USART_StopBits = USART_StopBits_1;
- USART_InitSructure.USART_Parity = USART_Parity_No;
- USART_InitSructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
- USART_InitSructure.USART_Mode = USART_Mode_Rx|USART_Mode_Tx;
- USART_Init(USART1,&USART_InitSructure);
- USART_Cmd(USART1,ENABLE);
- }
- void ADC1_Init(void)
- {
- ADC_InitTypeDef ADC_InitStructure;
- ADC_InitStructure.ADC_Mode = ADC_Mode_Independent;
- ADC_InitStructure.ADC_ScanConvMode = ENABLE;
- ADC_InitStructure.ADC_ContinuousConvMode = ENABLE;
- ADC_InitStructure.ADC_ExternalTrigConv = ADC_ExternalTrigConv_None;
- ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right;
- ADC_InitStructure.ADC_NbrOfChannel = 1;
- ADC_Init(ADC1, &ADC_InitStructure);
- ADC_RegularChannelConfig(ADC1, ADC_Channel_0, 1, ADC_SampleTime_55Cycles5);
- ADC_DMACmd(ADC1, ENABLE);
- ADC_Cmd(ADC1, ENABLE);
- ADC_ResetCalibration(ADC1);
- while(ADC_GetResetCalibrationStatus(ADC1));
- ADC_StartCalibration(ADC1);
- while(ADC_GetCalibrationStatus(ADC1));
- ADC_SoftwareStartConvCmd(ADC1, ENABLE);
- }
- void DMA(void)
- {
- DMA_InitTypeDef DMA_InitStructure;
- DMA_DeInit(DMA1_Channel1);
- DMA_InitStructure.DMA_PeripheralBaseAddr = ADC1_DR_Address;
- DMA_InitStructure.DMA_MemoryBaseAddr = (uint32_t)&ADCConvertedValue;
- DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralSRC;
- DMA_InitStructure.DMA_BufferSize = 1;
- DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;
- DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Disable;
- DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_HalfWord;
- DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_HalfWord;
- DMA_InitStructure.DMA_Mode = DMA_Mode_Circular;
- DMA_InitStructure.DMA_Priority = DMA_Priority_High;
- DMA_InitStructure.DMA_M2M = DMA_M2M_Disable;
- DMA_Init(DMA1_Channel1, &DMA_InitStructure);
- DMA_Cmd(DMA1_Channel1, ENABLE);
- }
- int fputc(int ch,FILE *f)
- {
- USART_SendData(USART1,(u8)ch);
- while(USART_GetFlagStatus(USART1,USART_FLAG_TC) == RESET);
- return ch;
- }
- void T1_ETR_InitConfig(void)
- {
- TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
- GPIO_InitTypeDef GPIO_InitStructure;
-
- RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM1, ENABLE);
-
- GPIO_InitStructure.GPIO_Pin = GPIO_Pin_12;
- GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPD;
- GPIO_InitStructure.GPIO_Speed = GPIO_Speed_2MHz;
- GPIO_Init(GPIOA, &GPIO_InitStructure);
-
- TIM_TimeBaseStructure.TIM_Prescaler = 0;//????
- TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;//??????
- TIM_TimeBaseStructure.TIM_Period = 0xFFFF;//?????????????????????????
- TIM_TimeBaseStructure.TIM_ClockDivision = TIM_CKD_DIV1;//TDTS = Tck_tim
- TIM_TimeBaseStructure.TIM_RepetitionCounter = 0;//?????
- TIM_TimeBaseInit(TIM1,&TIM_TimeBaseStructure);//???
-
- TIM_CounterModeConfig(TIM1, TIM_CounterMode_Up);
- TIM_SelectInputTrigger(TIM1, TIM_TS_ETRF);
- TIM_ETRClockMode2Config(TIM1, TIM_ExtTRGPSC_OFF,TIM_ExtTRGPolarity_Inverted,0x01);
-
- TIM_Cmd(TIM1, ENABLE);
- }
- void T2_ETR_InitConfig(void)
- {
- TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
- GPIO_InitTypeDef GPIO_InitStructure;
- RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2, ENABLE);
-
- GPIO_InitStructure.GPIO_Pin = GPIO_Pin_15;
- GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPD;
- GPIO_InitStructure.GPIO_Speed = GPIO_Speed_2MHz;
- GPIO_Init(GPIOA, &GPIO_InitStructure);
-
- GPIO_PinRemapConfig(GPIO_PartialRemap1_TIM2, ENABLE);
- GPIO_PinRemapConfig(GPIO_Remap_SWJ_JTAGDisable, ENABLE);
-
- TIM_TimeBaseStructure.TIM_Prescaler = 0;//????
- TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;//??????
- TIM_TimeBaseStructure.TIM_Period = 0xFFFF;//?????????????????????????
- TIM_TimeBaseStructure.TIM_ClockDivision = TIM_CKD_DIV1;//TDTS = Tck_tim
- TIM_TimeBaseStructure.TIM_RepetitionCounter = 0;//?????
- TIM_TimeBaseInit(TIM2,&TIM_TimeBaseStructure);//???
-
- TIM_CounterModeConfig(TIM2, TIM_CounterMode_Up);
- TIM_SelectInputTrigger(TIM2, TIM_TS_ETRF);
- TIM_ETRClockMode2Config(TIM2, TIM_ExtTRGPSC_OFF,TIM_ExtTRGPolarity_Inverted,0x01);
-
- TIM_Cmd(TIM2, ENABLE);
- }
- void TIM4_PWM(void)
- {
- TIM_TimeBaseInitTypeDef TIM_TimeBaseInitStructure;
- TIM_OCInitTypeDef TIM_OCInitStructure;
- TIM_DeInit(TIM4);
- TIM_TimeBaseInitStructure.TIM_ClockDivision = TIM_CKD_DIV1;
- TIM_TimeBaseInitStructure.TIM_CounterMode = TIM_CounterMode_Up;
- TIM_TimeBaseInitStructure.TIM_Period = 5000;
- TIM_TimeBaseInitStructure.TIM_Prescaler = 71;
- TIM_TimeBaseInitStructure.TIM_RepetitionCounter = 0;
- TIM_TimeBaseInit(TIM4,&TIM_TimeBaseInitStructure);
-
- TIM_OCInitStructure.TIM_OCIdleState = TIM_OCIdleState_Reset; //??TIM1/8??
- TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1;
- TIM_OCInitStructure.TIM_OCNIdleState = RESET; //??TIM1/8??
- TIM_OCInitStructure.TIM_OCNPolarity = TIM_OCNPolarity_High; //??TIM1/8??
- TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High;
- TIM_OCInitStructure.TIM_OutputNState = TIM_OutputNState_Disable; //??TIM1/8??
- TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
- TIM_OCInitStructure.TIM_Pulse = 18000;
- TIM_OC3Init(TIM4,&TIM_OCInitStructure);
-
- TIM_OCInitStructure.TIM_Pulse = 5000;
- TIM_OC4Init(TIM4,&TIM_OCInitStructure);
-
- TIM_GenerateEvent(TIM4,TIM_EventSource_Update);
- TIM_Cmd(TIM4,ENABLE);
- }
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