Proteus8.9 仿真STM32407ZGT6系列009_PWM多路可调占空比输出

一，打开文件（可以随文下载放置在文档中打开）。(如下图1所示)

图1

二，调整虚拟器件，另存工程文件。(如下图2，3，4所示)

图2

图3

图4

三，点击Source Code标签。(如下图5所示)

图5

四，编辑main.c，timer.c，timer.h， key.c，key.h， led.c，led.h 代码如Proteus8.9 仿真 STM32407ZGT6系列001(如下图6所示)

图6

五，Main.c 代码：
/* Main.c file generated by New Project wizard
* Author： Ziegler Yin
* Created: 周四一月 16 2020
* Processor: STM32F407ZGT6ZGT6
* Compiler: GCC for ARM
*/

#include "mfuncs.h"
#include "delay.h"
#include "usart.h"
#include "led.h"
#include "key.h"
#include "timer.h"

#define RT(A , B) (A> 300)? (B= 0): (B=1)

uint32_t gt_fig(u8 sts){
if(1== sts) return TIM_GetCapture1(TIM4);
if(2== sts) return TIM_GetCapture2(TIM4);
if(3== sts) return TIM_GetCapture3(TIM4);
if(4== sts) return TIM_GetCapture4(TIM4);
}

void st_fig(u8 sts, uint32_t gt){
if(1== sts) TIM_SetCompare1(TIM4, gt);
if(2== sts) TIM_SetCompare2(TIM4, gt);
if(3== sts) TIM_SetCompare3(TIM4, gt);
if(4== sts) TIM_SetCompare4(TIM4, gt);
}

int main(void)
{
u16 psc=840, per=600, idc[4]= {500, 200, 300, 400};
u16 umd, pwmval=0;
u8 status= 0, dir= 1;
int gtln= 0;
char *wd, *wds, lnslt[5]={'_', 'A', 'B', 'C', 'D'};
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);//设置系统中断优先级分组2
delay_init(168); //初始化延时函数
uart_init(9600);//初始化串口波特率为115200
    LED_Init();
    KEY_Init();
uprint("大家好！！！\r\n");
uprint("大家来造呼吸机-----。\r\n");
LED0= LED1= LED2= 1;
Pwm_Init(psc, per);
  TIM_SetCompare1(TIM4, idc[0]);
  TIM_SetCompare2(TIM4, idc[1]);
  TIM_SetCompare3(TIM4, idc[2]);
  TIM_SetCompare4(TIM4, idc[3]);
uprint("控制芯片STM32F407ZGT6_008_PWM仿真开始了。\r\n");
  delay_ms(100);

while(1)
{
  wd[0]=lnslt[status];
  wd[1]= 0;
  uprint("Arm运行时......占空比");
  uprint(wd);
  uprint("线路可调整状态:\r\n");
  if(1==ReadKey(GPIOC, 0x0080)) {
   status++;
      delay_ms(20);
   if(status> 4) status= 0;
   wd[0]=lnslt[status];
   wd[1]= 0;
   uprint("线路调整状态......占空比");
   uprint(wd);
   uprint("线路可调整状态:\r\n");
  }
  if(1==ReadKey(GPIOC, 0x0010)) {
   LED0= 1;
   pwmval= gt_fig(status);
   gtln= nmtoa(wds, 10, pwmval);
   if(status>0){
    if(per< (pwmval+ 50)) {

      uprint("线路调整, 占空值到达最高值 ......\r\n");
      st_fig(status, (per+ 1));
    }
    else{
     LED0= 1;
     pwmval= gt_fig(status);
     gtln= nmtoa(wds, 10, pwmval);
     umd= pwmval +50;
     uprint("线路调整, 占空值由 ");
     uprint(wds);
     uprint(" 增加50");
     uprint(" ...\r\n ");
     st_fig(status, umd);
    }
   }
  }
  if(1==ReadKey(GPIOC, 0x0020)) {
   LED1= 1;
       delay_ms(20);
   pwmval= gt_fig(status);
   gtln= nmtoa(wds, 10, pwmval);
   uprint("Arm运行时......占空比");
   uprint(wd);
   uprint("线路调整, 由 ");
   uprint(wds);
   uprint(" 清零 ");
   uprint(" ...\r\n ");
   st_fig(status, 0);
  }
  if(1==ReadKey(GPIOC, 0x0040)) {
   LED2= 1;
   pwmval= gt_fig(status);
   gtln= nmtoa(wds, 10, pwmval);
   if(pwmval> 50) umd= pwmval -50;
   else umd= 1;
   uprint("线路调整, 占空值由 ");
   uprint(wds);
   uprint(" 减少50");
   uprint(" ...\r\n ");
   st_fig(status, umd);
  }
  LED0= LED1= LED2= 0;
   delay_ms(100);
}
}

timer.c代码：
#include "mfuncs.h"
#include "timer.h"
#include "led.h"

void PWM_GPIO(void){
GPIO_InitTypeDef GPIO_InitStructure;
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOB, ENABLE);

GPIO_InitStructure.GPIO_Pin = GPIO_Pin_5|GPIO_Pin_6|GPIO_Pin_7|GPIO_Pin_8|GPIO_Pin_9;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz;
GPIO_Init(GPIOB, &GPIO_InitStructure);
GPIO_PinAFConfig(GPIOB, GPIO_PinSource5, GPIO_AF_TIM3);

GPIO_PinAFConfig(GPIOB, GPIO_PinSource6, GPIO_AF_TIM4);
GPIO_PinAFConfig(GPIOB, GPIO_PinSource7, GPIO_AF_TIM4);
GPIO_PinAFConfig(GPIOB, GPIO_PinSource8, GPIO_AF_TIM4);
GPIO_PinAFConfig(GPIOB, GPIO_PinSource9, GPIO_AF_TIM4);
}

// PWM 定时器配置
void Pwm_Init(u16 TimerPrescaler, u32 TimerPeriod)
{
PWM_GPIO();
TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
TIM_OCInitTypeDef TIM_OCInitStructure;
RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM4 , ENABLE);

TIM_TimeBaseStructure.TIM_Prescaler = TimerPrescaler-1;     // 时钟预分频数
TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up; //向上计数
TIM_TimeBaseStructure.TIM_Period = TimerPeriod-1;    // 自动重装载寄存器的值
TIM_TimeBaseStructure.TIM_ClockDivision = 0;
TIM_TimeBaseStructure.TIM_RepetitionCounter = 0;   //重复寄存器，用于自动更新pwm占空比
TIM_TimeBaseInit(TIM4, &TIM_TimeBaseStructure);

TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1;
TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
TIM_OCInitStructure.TIM_OutputNState = TIM_OutputNState_Enable; //使能该通道输出

TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_Low;    //设置互补端输出极性
TIM_OCInitStructure.TIM_OCNPolarity = TIM_OCNPolarity_High; //使能互补端输出
TIM_OCInitStructure.TIM_OCIdleState = TIM_OCIdleState_Set;   //死区后输出状态??
TIM_OCInitStructure.TIM_OCNIdleState = TIM_OCIdleState_Reset; //死区后互补端输出状态??
/* TIM1 counter enable */
TIM_OCInitStructure.TIM_Pulse = 0;    //设置占空比时间
TIM_OC1Init(TIM4, &TIM_OCInitStructure);

TIM_OCInitStructure.TIM_Pulse = 0; //设置占空比时间
TIM_OC2Init(TIM4, &TIM_OCInitStructure);

TIM_OCInitStructure.TIM_Pulse = 0; //设置占空比时间
TIM_OC3Init(TIM4, &TIM_OCInitStructure);

TIM_OCInitStructure.TIM_Pulse = 0; //设置占空比时间
TIM_OC4Init(TIM4, &TIM_OCInitStructure);

TIM_Cmd(TIM4, ENABLE);
TIM_CtrlPWMOutputs(TIM4, ENABLE);
}

timer.h代码
#ifndef _TIMER_H
#define _TIMER_H

#include "sys.h"

void PWM_GPIO(void);
void Pwm_Init(u16 TimerPrescaler, u32 TimerPeriod);

#endif

key.c,key.h, led.c led.h之前的代码都可借鉴，不在多列，以后不再一一罗列，只列main.c 与相关功能的.c, .h代码。

六，点击构建工程按钮，编译工程。(如下图7所示)