stm32多路PWM模擬輸出的程序源碼

ID:337869 · 發(fā)表于 2018-5-25 10:16

stm32F103c8t6的程序（可方便改成使用的單片機），通過定時器模擬輸出多路脈沖寬度不同的PWM，且脈沖寬度與脈沖寬度改變速度可控。自己用于多路舵機驅動，理論上單片機有多少I/O口就能輸出多少路PWM�。�！

stm32單片機源程序如下:

#include "stm32f10x.h"
#include "TIM.h"
#include "DELAY.h"
#include "GPIO.h"
#include "math.h"
#include "DATA.h"
int main()
{
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_4);//選擇中斷分組4
GPIO_Configuration();
TIM3_Init(71,9);//每10us進一次中斷
NVIC3_Configurature();
TIM2_Init(35999,19);//100Hz
NVIC2_Configurature();
slaver_SetAngle(0,220,60);//零號舵機,A1
slaver_SetAngle(1,20,60);//A2
slaver_SetAngle(2,40,60);//A3
slaver_SetAngle(3,60,60);
slaver_SetAngle(4,80,60);
slaver_SetAngle(5,100,60);
slaver_SetAngle(6,120,60);
slaver_SetAngle(8,140,60);
slaver_SetAngle(9,160,60);
slaver_SetAngle(10,170,60);
slaver_SetAngle(11,100,60);
slaver_SetAngle(12,40,60);
slaver_SetAngle(13,60,60);
slaver_SetAngle(14,70,60);
slaver_SetAngle(15,80,60);
slaver_SetAngle(16,90,60);
slaver_SetAngle(17,100,60);
while(1)
{
}
}
volatile unsigned short pulse_width = 2000;
volatile unsigned int tim3_cnt = 0;//設置的奇數(shù)位
void TIM3_IRQHandler(void)//TIM3做PWM輸出
{
unsigned char j;
TIM3->SR = 0;//清楚中斷
tim3_cnt++;
if(tim3_cnt == pulse_width)
{
tim3_cnt = 0;
GPIOA->ODR |= 0XFFFF;//對其他的端口不會影響
GPIOB->ODR |= 0XFFFF;
}
for(j = 0;j < slave_Number;j ++)
{
if(tim3_cnt == slaver_data[j].Data_Converted)//等于角度轉換值得到的數(shù)值
{
(slaver_data[j].GPIOx)->ODR&=~slaver_data[j].GPIO_Pin;//選擇端口，進行賦值
}
}
}
void TIM2_IRQHandler(void)//定時器2做控速
{
unsigned char i;
TIM2->SR = 0;
for(i=0; i<slave_Number; i++)
{
if(fabs(slaver_data[i].Data_Desire - slaver_data[i].Data_Real) < slaver_data[i].Data_Speed*CYCLE_TIM2_UPDATE)//判斷實際角度與輸入角度的差值
{
slaver_data[i].Data_Real = slaver_data[i].Data_Desire;//差值小就直接賦值
}
else
{
if(slaver_data[i].Data_Desire > slaver_data[i].Data_Real)//輸入值大于實際值
{
slaver_data[i].Data_Real += slaver_data[i].Data_Speed*CYCLE_TIM2_UPDATE;//加等于輸入值
}
else
{
slaver_data[i].Data_Real -= slaver_data[i].Data_Speed*CYCLE_TIM2_UPDATE;//減等于輸入值
}
}
slaver_data[i].Data_Converted = (unsigned short)(50.0f + slaver_data[i].Data_Real*SLAVER_CHANGE);//加上偏移量，轉換數(shù)值
}
}

復制代碼

所有資料51hei提供下載:

duoji-qudong-5.zip (318.85 KB, 下載次數(shù): 33)

ID:337869 · 發(fā)表于 2018-5-25 10:17

我怎么上傳資料啊，剛來這個論壇，尷尬，，，

帳號		自動登錄	找回密碼
密碼			立即注冊

stm32多路PWM模擬輸出的程序源碼

評分