请你编写一段ADC驱动步进电机的代码
时间: 2024-06-10 17:09:06 浏览: 8
好的,以下是一段ADC驱动步进电机的代码:
```c
#include <stdio.h>
#include <stm32f10x.h>
#define STEPPER_GPIO_PORT GPIOA
#define STEPPER_GPIO_PIN1 GPIO_Pin_8
#define STEPPER_GPIO_PIN2 GPIO_Pin_9
#define STEPPER_GPIO_PIN3 GPIO_Pin_10
#define STEPPER_GPIO_PIN4 GPIO_Pin_11
#define ADC_GPIO_PORT GPIOB
#define ADC_GPIO_PIN GPIO_Pin_0
#define ADC1_DR_Address ((u32)0x4001244C)
__IO uint16_t ADCConvertedValue;
static uint8_t stepper_pos = 0; // 当前步进电机位置
void ADC_Configuration(void)
{
ADC_InitTypeDef ADC_InitStructure;
GPIO_InitTypeDef GPIO_InitStructure;
DMA_InitTypeDef DMA_InitStructure;
// 使能ADC GPIO时钟
RCC_APB2PeriphClockCmd(RCC_APB2Periph_ADC1 | RCC_APB2Periph_GPIOB | RCC_APB2Periph_AFIO, ENABLE);
// 配置ADC通道和GPIO
GPIO_InitStructure.GPIO_Pin = ADC_GPIO_PIN;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN;
GPIO_Init(ADC_GPIO_PORT, &GPIO_InitStructure);
// 配置ADC
ADC_InitStructure.ADC_Mode = ADC_Mode_Independent;
ADC_InitStructure.ADC_ScanConvMode = DISABLE;
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);
// 配置DMA
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA1, ENABLE);
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);
// 使能DMA
DMA_Cmd(DMA1_Channel1, ENABLE);
// 使能ADC
ADC_Cmd(ADC1, ENABLE);
ADC_RegularChannelConfig(ADC1, ADC_Channel_8, 1, ADC_SampleTime_239Cycles5);
// 使能ADC DMA
ADC_DMACmd(ADC1, ENABLE);
// 开始转换
ADC_SoftwareStartConvCmd(ADC1, ENABLE);
}
void Stepper_GPIO_Configuration(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
// 使能GPIO时钟
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE);
// 配置GPIO
GPIO_InitStructure.GPIO_Pin = STEPPER_GPIO_PIN1 | STEPPER_GPIO_PIN2 | STEPPER_GPIO_PIN3 | STEPPER_GPIO_PIN4;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_Init(STEPPER_GPIO_PORT, &GPIO_InitStructure);
}
void Set_Stepper_Pos(uint8_t pos)
{
static uint8_t table[] = {0x01, 0x02, 0x04, 0x08};
uint8_t i = 0;
// 设置步进电机
for (i = 0; i < 4; i++)
{
if (pos == i)
{
GPIO_SetBits(STEPPER_GPIO_PORT, table[i]);
}
else
{
GPIO_ResetBits(STEPPER_GPIO_PORT, table[i]);
}
}
stepper_pos = pos;
}
void Delay(uint32_t nCount)
{
uint32_t i = 0;
for (i = 0; i < nCount; i++)
;
}
int main(void)
{
ADC_Configuration();
Stepper_GPIO_Configuration();
while (1)
{
// 获取ADC转换值
uint16_t adc_value = ADCConvertedValue;
// 计算步进电机位置
uint8_t pos = adc_value / 1365;
// 设置步进电机位置
if (pos != stepper_pos)
{
Set_Stepper_Pos(pos);
}
// 延时
Delay(50000);
}
}
```
希望对您有所帮助!
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