stm32采集12路电压源码

ID:76293 · 发表于 2017-12-5 20:49

stm32采集12路电压单片机源程序如下:

#include "system.h"
#include "SysTick.h"
#include "systick.h"
#include "led.h"
#include "usart.h"
#include "adc.h"
#include "stm32f10x_gpio.h"
#define N 50
#define M 12
u16 value1[12];
float GetVolt(u16 advalue);
void filter(void);
u16 After_filter[12]; //?????????????
u8 i;
u16 AD_Value[N][M]; //????ADC????,??DMA?????
void GPIO_Configuration(void);
void DMA_Configuration(void);
void RCC_Configuration(void);
void RCC_Configuration(void)
{
ErrorStatus HSEStartUpStatus;
RCC_DeInit(); //RCC ????
RCC_HSEConfig(RCC_HSE_ON); //??HSE
HSEStartUpStatus = RCC_WaitForHSEStartUp(); //??HSE???
if(HSEStartUpStatus == SUCCESS)
{
FLASH_PrefetchBufferCmd(FLASH_PrefetchBuffer_Enable); //Enable Prefetch Buffer
FLASH_SetLatency(FLASH_Latency_2); //Set 2 Latency cycles
RCC_HCLKConfig(RCC_SYSCLK_Div1); //AHB clock = SYSCLK
RCC_PCLK2Config(RCC_HCLK_Div1); //APB2 clock = HCLK
RCC_PCLK1Config(RCC_HCLK_Div2); //APB1 clock = HCLK/2
RCC_PLLConfig(RCC_PLLSource_HSE_Div1, RCC_PLLMul_6); //PLLCLK = 12MHz * 6 = 72 MHz
RCC_PLLCmd(ENABLE); //Enable PLL
while(RCC_GetFlagStatus(RCC_FLAG_PLLRDY) == RESET); //Wait till PLL is ready
RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK); //Select PLL as system clock source
while(RCC_GetSYSCLKSource() != 0x08); //Wait till PLL is used as system clock source
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA|RCC_APB2Periph_GPIOB
| RCC_APB2Periph_GPIOC |RCC_APB2Periph_ADC1 | RCC_APB2Periph_AFIO |RCC_APB2Periph_USART1, ENABLE ); //??ADC1????,??????
RCC_ADCCLKConfig(RCC_PCLK2_Div6); //72M/6=12,ADC????????14M
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA1, ENABLE); //??DMA??
}
}
void GPIO_Configuration(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
/*GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; //??USART1???????????GPIO???,???????????
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
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);*/
//PA0/1/2 ??????????
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0| GPIO_Pin_1|GPIO_Pin_2|GPIO_Pin_3;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN; //??????
GPIO_InitStructure.GPIO_Speed=GPIO_Speed_50MHz; //??????
GPIO_Init(GPIOA, &GPIO_InitStructure);
//PB0/1 ??????????
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0|GPIO_Pin_1;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN; //??????
GPIO_InitStructure.GPIO_Speed=GPIO_Speed_50MHz; //??????
GPIO_Init(GPIOB, &GPIO_InitStructure);
//PC0/1/2/3/4/5 ??????????
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0|GPIO_Pin_1|GPIO_Pin_2|GPIO_Pin_3|GPIO_Pin_4|GPIO_Pin_5;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN; //??????
GPIO_Init(GPIOC, &GPIO_InitStructure);
}
void DMA_Configuration(void)
{
DMA_InitTypeDef DMA_InitStructure;
DMA_DeInit(DMA1_Channel1); //?DMA???1?????????
DMA_InitStructure.DMA_PeripheralBaseAddr = (u32)&ADC1->DR; //DMA??ADC???
DMA_InitStructure.DMA_MemoryBaseAddr = (u32)&AD_Value; //DMA?????
DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralSRC; //????????????
DMA_InitStructure.DMA_BufferSize = N*M; //DMA???DMA?????
DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable; //?????????
DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable; //?????????
DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_HalfWord; //?????16?
DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_HalfWord; //?????16?
DMA_InitStructure.DMA_Mode = DMA_Mode_Circular; //?????????
DMA_InitStructure.DMA_Priority = DMA_Priority_High; //DMA?? x??????
DMA_InitStructure.DMA_M2M = DMA_M2M_Disable; //DMA??x????????????
DMA_Init(DMA1_Channel1, &DMA_InitStructure); //??DMA_InitStruct?????????DMA???
}
/*******************************************************************************
* 函数名 : main
* 函数功能 : 主函数
* 输入 : 无
* 输出 : 无
*******************************************************************************/
int main()
{
u8 j=0;
float value[12];
SysTick_Init(72);
RCC_Configuration();
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2); //中断优先级分组分2组
LED_Init();
USART1_Init(9600);
GPIO_Configuration();
DMA_Configuration();
ADC1_Configuration();
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);//开启adc转换
DMA_Cmd(DMA1_Channel1, ENABLE); //开启DMA通道
while(1)
{
j++;
if(j%50==0)
{
while(USART_GetFlagStatus(USART1,USART_FLAG_TXE)==RESET);//?????????????????
filter();
for(i=0;i<12;i++)
{
value[i]= GetVolt(After_filter[i]);
value1[i]=value[i];
printf("value[%d]: %d %.2fv\n",i,value1[i]*100,value[i]) ;
delay_ms(100);
}
}
}
}
float GetVolt(u16 advalue)
{float temp;
temp=advalue * 3.3 / 4096;
return temp;
}
void filter(void)
{
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stm32采集12路电压源码

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