写一个stm32f103c86t读取7个adc通道数字模拟信号
时间: 2024-03-15 11:44:19 浏览: 23
好的,下面是一个简单的示例代码,用于读取STM32F103C8T芯片的7个ADC通道数字模拟信号:
```c
#include "stm32f10x.h"
void ADC_Configuration(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
ADC_InitTypeDef ADC_InitStructure;
//使能ADC1时钟
RCC_APB2PeriphClockCmd(RCC_APB2Periph_ADC1, ENABLE);
//配置模拟输入引脚
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_1 | GPIO_Pin_2 | GPIO_Pin_3 | GPIO_Pin_4 | GPIO_Pin_5 | GPIO_Pin_6;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN;
GPIO_Init(GPIOA, &GPIO_InitStructure);
//ADC1配置
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 = 7;
ADC_Init(ADC1, &ADC_InitStructure);
//配置ADC通道
ADC_RegularChannelConfig(ADC1, ADC_Channel_0, 1, ADC_SampleTime_239Cycles5);
ADC_RegularChannelConfig(ADC1, ADC_Channel_1, 2, ADC_SampleTime_239Cycles5);
ADC_RegularChannelConfig(ADC1, ADC_Channel_2, 3, ADC_SampleTime_239Cycles5);
ADC_RegularChannelConfig(ADC1, ADC_Channel_3, 4, ADC_SampleTime_239Cycles5);
ADC_RegularChannelConfig(ADC1, ADC_Channel_4, 5, ADC_SampleTime_239Cycles5);
ADC_RegularChannelConfig(ADC1, ADC_Channel_5, 6, ADC_SampleTime_239Cycles5);
ADC_RegularChannelConfig(ADC1, ADC_Channel_6, 7, ADC_SampleTime_239Cycles5);
//启动ADC
ADC_Cmd(ADC1, ENABLE);
}
int main(void)
{
uint16_t ADC_Value[7];
//初始化ADC模块
ADC_Configuration();
while(1)
{
//启动ADC转换
ADC_SoftwareStartConvCmd(ADC1, ENABLE);
//等待转换完成
while(ADC_GetFlagStatus(ADC1, ADC_FLAG_EOC) == RESET);
//读取ADC数据
ADC_Value[0] = ADC_GetConversionValue(ADC1);
ADC_Value[1] = ADC_GetConversionValue(ADC1);
ADC_Value[2] = ADC_GetConversionValue(ADC1);
ADC_Value[3] = ADC_GetConversionValue(ADC1);
ADC_Value[4] = ADC_GetConversionValue(ADC1);
ADC_Value[5] = ADC_GetConversionValue(ADC1);
ADC_Value[6] = ADC_GetConversionValue(ADC1);
}
}
```
这段代码会启用ADC1模块,读取PA0-PA6七个模拟输入通道的数字模拟信号。需要注意的是,ADC模块的配置需要根据具体的芯片型号和采集要求进行调整。