基础版本
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bathfire
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/*C*****************************************************************************
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* NAME: .c
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*-------------------------------------------------------------------------------
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* RELEASE:
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* REVISION: 1.0
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*-------------------------------------------------------------------------------
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* PURPOSE:
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*
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*******************************************************************************/
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/*_____ I N C L U D E S ______________________________________________________*/
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#include "config.h" //全局声明
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/*_____ M A C R O S __________________________________________________________*/
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/*_____ D E F I N I T I O N __________________________________________________*/
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//AD参考电压2.5V,压力传感器输出4-20毫安，对应电压范围0.48-2.4v
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/*_____ D E C L A R A T I O N ________________________________________________*/
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u16 PressureAdcBuf[20];//压力检测ADC缓存，每把枪C_PressureAdcBuf
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u16 PressureADCValue[2];//压力值缓存
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u32 pressureCalibrate = 3932; //10倍AD对应2.4V 40MP 2979
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u32 pressureBass = (3932/5); //10倍对应0.48V 0MP
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u8 PrssureTask_Flag = 0;//压力检测任务开关
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#define C_timerPressure 5 //压力异常定时数值
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/****************************************************
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函数名：Pressure_IO_Configuration
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功能 ：压力检测IO配置
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参数 ：无
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返回值：无
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****************************************************/
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void Pressure_IO_Configuration(void)
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{
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GPIO_InitTypeDef GPIO_InitStructure;
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RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOC, ENABLE);
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GPIO_InitStructure.GPIO_Pin = GPIO_Pin_4 | GPIO_Pin_5;
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GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
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GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AN;
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GPIO_Init(GPIOC, &GPIO_InitStructure);
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}
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/****************************************************
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函数名：Pressure_IO_Configuration
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功能 ：压力检测ADCDMA配置
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参数 ：无
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返回值：无
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****************************************************/
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void Pressure_DMA_Configuration(void)
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{
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DMA_InitTypeDef DMA_InitStructure;
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RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_DMA2, ENABLE);
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DMA_DeInit(DMA2_Stream0);
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DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralToMemory;
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DMA_InitStructure.DMA_BufferSize = 20;
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DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;
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DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable;
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DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_HalfWord;
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DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_HalfWord;
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DMA_InitStructure.DMA_Mode = DMA_Mode_Circular;
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DMA_InitStructure.DMA_Priority = DMA_Priority_High;
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DMA_InitStructure.DMA_FIFOMode = DMA_FIFOMode_Disable;
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DMA_InitStructure.DMA_MemoryBurst = DMA_MemoryBurst_Single;
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DMA_InitStructure.DMA_PeripheralBurst = DMA_PeripheralBurst_Single;
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DMA_InitStructure.DMA_PeripheralBaseAddr = (uint32_t)&ADC1->DR;
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DMA_InitStructure.DMA_Channel = DMA_Channel_2;
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DMA_InitStructure.DMA_Memory0BaseAddr = (uint32_t)PressureAdcBuf;
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DMA_Init(DMA2_Stream0, &DMA_InitStructure);
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DMA_ITConfig(DMA2_Stream0, DMA_IT_TC, ENABLE);
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DMA_ClearFlag(DMA2_Stream0, DMA_IT_TCIF0);
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DMA_Cmd(DMA2_Stream0, ENABLE);
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}
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/****************************************************
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函数名：Pressure_IO_Configuration
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功能 ：压力检测ADC配置
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参数 ：无
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返回值：无
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****************************************************/
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void Pressure_ADC_Configuration(void)
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{
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ADC_CommonInitTypeDef ADC_CommonInitStructure;
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ADC_InitTypeDef ADC_InitStructure;
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RCC_APB2PeriphClockCmd(RCC_APB2Periph_ADC1, ENABLE); //使能 ADC1 时钟
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RCC_APB2PeriphResetCmd(RCC_APB2Periph_ADC1,ENABLE); //ADC1 复位
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RCC_APB2PeriphResetCmd(RCC_APB2Periph_ADC1,DISABLE); //复位结束
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//②初始化通用配置
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ADC_CommonInitStructure.ADC_Mode = ADC_Mode_Independent;//独立模式
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ADC_CommonInitStructure.ADC_TwoSamplingDelay = ADC_TwoSamplingDelay_5Cycles;//两个采样阶段之间的延迟 5 个时钟
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ADC_CommonInitStructure.ADC_DMAAccessMode = ADC_DMAAccessMode_Disabled; //DMA 失能
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ADC_CommonInitStructure.ADC_Prescaler = ADC_Prescaler_Div4;//预分频 4 分频。
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//ADCCLK=PCLK2/4=84/4=21Mhz,ADC 时钟最好不要超过 36Mhz
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ADC_CommonInit(&ADC_CommonInitStructure);//初始化
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//③初始化 ADC1 相关参数
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ADC_InitStructure.ADC_Resolution = ADC_Resolution_12b;//12 位模式
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ADC_InitStructure.ADC_ScanConvMode = ENABLE;//扫描模式
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ADC_InitStructure.ADC_ContinuousConvMode = ENABLE;//连续转换
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ADC_InitStructure.ADC_ExternalTrigConvEdge = ADC_ExternalTrigConvEdge_None;//禁止触发检测，使用软件触发
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ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right;//右对齐
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ADC_InitStructure.ADC_NbrOfConversion = 6;//6 个转换在规则序列中
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ADC_Init(ADC3, &ADC_InitStructure);//ADC 初始化
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ADC_RegularChannelConfig(ADC1, ADC_Channel_4, 1, ADC_SampleTime_480Cycles);
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ADC_RegularChannelConfig(ADC1, ADC_Channel_5, 2, ADC_SampleTime_480Cycles);
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ADC_DMACmd(ADC1, ENABLE);//开启ADC1DMA
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//④开启 ADC 转换
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ADC_Cmd(ADC1, ENABLE);//开启 AD 转换器
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ADC_DMARequestAfterLastTransferCmd(ADC1,ENABLE);
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ADC_SoftwareStartConv(ADC1); //使能指定的 ADC1 的软件转换启动功能
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}
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/****************************************************
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函数名：Pressure_NVIC_Configuration
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功能 ：DMA中断配置
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参数 ：无
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返回值：无
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****************************************************/
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void Pressure_NVIC_Configuration(void)
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{
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NVIC_InitTypeDef NVIC_InitStructure; //定义中断配置结构体
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//ADC1_DMA
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NVIC_InitStructure.NVIC_IRQChannel = DMA2_Stream0_IRQn; //ADC3_DMA
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NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 2;
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NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1;
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NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
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NVIC_Init(&NVIC_InitStructure);
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}
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/****************************************************
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函数名：Pressure_IO_Configuration
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功能 ：压力检测初始化
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参数 ：无
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返回值：无
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****************************************************/
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void Pressure_Init(void)
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{
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u8 Number = 0;
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Pressure_IO_Configuration();
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Pressure_ADC_Configuration();
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Pressure_DMA_Configuration();
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Pressure_NVIC_Configuration();
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/**********压力定时器初始化**********/
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TXHData.AnalogTimer.Cycle = 1;
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TXHData.AnalogTimer.Flag = 0;
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TXHData.AnalogTimer.ON_OFF = 1;
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TXHData.AnalogTimer.Init = 0;
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TXHData.AnalogTimer.TimerCount = 0;
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TXHData.AnalogTimer.TimerCountMax = 500;//200周期2S
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}
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/****************************************************
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函数名：Pressure_IO_Configuration
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功能 ：压力检测DMA中断
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参数 ：无
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返回值：无
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****************************************************/
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void Pressure_ADCDMA_IRQHandler(void)
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{
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PrssureTask_Flag = 1; //开启压力检测任务
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DMA_ClearFlag(DMA2_Stream0, DMA_IT_TCIF0);
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}
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/****************************************************
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函数名：Pressure_IO_Configuration
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功能 ：压力检测任务
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参数 ：无
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返回值：无
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****************************************************/
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void PrssureTask(void)
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{
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volatile u8 Number = 0;
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volatile u8 i;
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u16 *pBuf = PressureAdcBuf;
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volatile u32 sum[2]= {0,0},Temp[2]={0,0};
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if(PrssureTask_Flag)
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{
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PrssureTask_Flag = 0;
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for(Number = 0;Number < 2;Number ++)
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{
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sum[Number] = 0;
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for(i = 0; i < 20; i += 2 )
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sum[Number] += *(pBuf+i+Number); //求和
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PressureADCValue[Number] =(sum[Number] ) / 160;//计算平均值
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// if((PressureADCValue[Number] > (pressureBass-470)) && (PressureADCValue[Number] < pressureCalibrate))//压力大于0小于2.5，压力传感器在线
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// {
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// switch(Number)
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// {
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// case 0:
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// {
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// JQJData.ErrState.Flag.e_errPressure_InCut = 0;//清除压力传感器掉线标志位
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// if(PressureADCValue[Number] > pressureBass)
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// {
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// JQJData.AnalogValue.Pressure_In = ((PressureADCValue[Number]- pressureBass) * JQJData.Pressure_Range.Pressure_In_Range * 10)/(pressureCalibrate - pressureBass); //
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// if(JQJData.AnalogValue.Pressure_In > (JQJData.Pressure_Limit.Pressure_In_Limit * 10))
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// {
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// JQJData.ErrState.Flag.e_errPressure_InPass = 1;
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// if(JQJData.FuelState.Flag.StartFlag == 1)
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// JQJData.ValveClose_Flag = 1;
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// }
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// else
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// JQJData.ErrState.Flag.e_errPressure_InPass = 0;
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// }
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// else
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// {
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// JQJData.AnalogValue.Pressure_In = 0;
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// }
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// if(JQJData.AnalogValue.Pressure_In > JQJData.Pressure_Limit.Pressure_Out_Stop)
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// {
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// if(V_Moto_State == 1)
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// JQJData.ValveClose_Flag = 1;
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// }
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// }
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// break;
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// case 1:
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// {
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// JQJData.ErrState.Flag.e_errPressure_OutCut = 0;//清除压力传感器掉线标志位
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// if(PressureADCValue[Number] > pressureBass)
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// {
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// JQJData.AnalogValue.Pressure_Out = ((PressureADCValue[Number]- pressureBass) * JQJData.Pressure_Range.Pressure_Out_Range * 10)/(pressureCalibrate - pressureBass); //
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// if(JQJData.AnalogValue.Pressure_Out > JQJData.Pressure_Limit.Pressure_Out_Limit)
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// {
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// JQJData.ErrState.Flag.e_errPressure_OutPass = 1;
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// if(JQJData.FuelState.Flag.StartFlag == 1)
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// JQJData.ValveClose_Flag = 1;
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// }
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// else
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// {
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// JQJData.ErrState.Flag.e_errPressure_OutPass = 0;
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// }
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// if(JQJData.AnalogValue.Pressure_Out > JQJData.Pressure_Limit.Pressure_Out_Stop)
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// {
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// if(V_Moto_State == 1)
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// JQJData.ValveClose_Flag = 1;
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// }
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// }
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// else
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// {
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// JQJData.AnalogValue.Pressure_Out = 0;
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// }
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// }
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// break;
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// }
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// }
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// else///压力传感器检测不到，启动异常定时器
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// {
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// switch(Number)
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// {
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// case 0:
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// {
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// }
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// break;
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// case 1:
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// {
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// }
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// break;
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//
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// }
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// }
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}
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}
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}
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@@ -0,0 +1,26 @@
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#ifndef __Analog_H_
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#define __Analog_H_
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/*H******************************************************************************
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* NAME: pressure.h
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*********************************************************************************/
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//3.3V,LMV358 跟随器,线性范围0.2~2.6v,4~40ms 输入电阻选用120欧
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//******************************************************************************
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//*-------------- 变量声名 -----------------------------------------------------
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//******************************************************************************
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extern u16 PressureAdcBuf[20];
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extern u16 PressureADCValue[2];
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extern u8 PrssureTask_Flag;
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#define Prssure_DMAAddrSet(x) (DMA2_Stream0->M0AR = x) //设置发送缓存地址
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#define Prssure_DMALenSet(x) (DMA2_Stream0->NDTR = x) //设置DMA发送长度
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#define Prssure_DMAStart() DMA_Cmd(DMA2_Stream0,ENABLE) //开启DMA发送
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#define Prssure_DMAStop() DMA_Cmd(DMA2_Stream0,DISABLE) //关闭DMA发送
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//******************************************************************************
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//*-------------- 函数声名 -----------------------------------------------------
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//******************************************************************************
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extern void Pressure_Init(void);
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extern void Pressure_ADCDMA_IRQHandler(void);
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extern void PrssureTask(void);
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#endif //#ifndef
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