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223 lines
6.8 KiB
223 lines
6.8 KiB
#include "stm32f10x.h" // Device header
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#include "USART.h"
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#include "rs485.h"
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#include "iwdg.h"
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extern u8 ins_1;
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extern u16 white;
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extern u16 tick;
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extern u8 Feed_Dog_Count;
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void PWM1_Init(uint16_t Per,uint16_t Psc)
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{
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RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM1,ENABLE);
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RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA,ENABLE);
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// RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO, ENABLE);
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// GPIO_PinRemapConfig(GPIO_PartialRemap1_TIM2, ENABLE);
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// GPIO_PinRemapConfig(GPIO_Remap_SWJ_JTAGDisable, ENABLE);
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GPIO_InitTypeDef GPIO_InitStructure;
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GPIO_InitStructure.GPIO_Mode=GPIO_Mode_AF_PP;
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GPIO_InitStructure.GPIO_Pin=GPIO_Pin_8; //TIM1_CH1
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GPIO_InitStructure.GPIO_Speed=GPIO_Speed_50MHz;
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GPIO_Init(GPIOA,&GPIO_InitStructure);
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TIM_TimeBaseInitTypeDef TIM_TimeBaseInitStructure;
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TIM_TimeBaseInitStructure.TIM_ClockDivision=TIM_CKD_DIV1;
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TIM_TimeBaseInitStructure.TIM_CounterMode=TIM_CounterMode_Up;
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TIM_TimeBaseInitStructure.TIM_Period=Per; //ARR
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TIM_TimeBaseInitStructure.TIM_Prescaler=Psc; //PSC
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TIM_TimeBaseInitStructure.TIM_RepetitionCounter=0;
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TIM_TimeBaseInit(TIM1,&TIM_TimeBaseInitStructure);
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TIM_OCInitTypeDef TIM_OCInitStructure;
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TIM_OCStructInit(&TIM_OCInitStructure);//给结构体赋初始值
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TIM_OCInitStructure.TIM_OCMode=TIM_OCMode_PWM1;//输出比较模式
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TIM_OCInitStructure.TIM_OCPolarity=TIM_OCPolarity_High;//输出比较极性
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TIM_OCInitStructure.TIM_OutputState=TIM_OutputState_Enable;
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TIM_OCInitStructure.TIM_Pulse=0; //CCR的值
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TIM_OC1Init(TIM1,&TIM_OCInitStructure);//TIM_OC1Init()函数用来初始化输出比较单元
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TIM_CtrlPWMOutputs(TIM1,ENABLE); //MOE 主输出使能
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TIM_OC1PreloadConfig(TIM1, TIM_OCPreload_Enable); //CH1预装载使能
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TIM_ARRPreloadConfig(TIM1, ENABLE); //使能TIMx在ARR上的预装载寄存器
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TIM_Cmd(TIM1,ENABLE);//定时器使能
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}
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void PWM2_Init(uint16_t Per,uint16_t Psc)
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{
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RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM1,ENABLE);
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RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA,ENABLE);
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// RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO, ENABLE);使用引脚复用功能
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// GPIO_PinRemapConfig(GPIO_PartialRemap1_TIM2, ENABLE);
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// GPIO_PinRemapConfig(GPIO_Remap_SWJ_JTAGDisable, ENABLE);
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GPIO_InitTypeDef GPIO_InitStructure;
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GPIO_InitStructure.GPIO_Mode=GPIO_Mode_AF_PP;
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GPIO_InitStructure.GPIO_Pin=GPIO_Pin_11; //TIM1_CH4
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GPIO_InitStructure.GPIO_Speed=GPIO_Speed_50MHz;
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GPIO_Init(GPIOA,&GPIO_InitStructure);
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TIM_TimeBaseInitTypeDef TIM_TimeBaseInitStructure;
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TIM_TimeBaseInitStructure.TIM_ClockDivision=TIM_CKD_DIV1;
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TIM_TimeBaseInitStructure.TIM_CounterMode=TIM_CounterMode_Up;
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TIM_TimeBaseInitStructure.TIM_Period=Per; //ARR
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TIM_TimeBaseInitStructure.TIM_Prescaler=Psc; //PSC
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TIM_TimeBaseInitStructure.TIM_RepetitionCounter=0;
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TIM_TimeBaseInit(TIM1,&TIM_TimeBaseInitStructure);
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TIM_OCInitTypeDef TIM_OCInitStructure;
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TIM_OCStructInit(&TIM_OCInitStructure);//给结构体赋初始值
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TIM_OCInitStructure.TIM_OCMode=TIM_OCMode_PWM1;//输出比较模式
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TIM_OCInitStructure.TIM_OCPolarity=TIM_OCPolarity_High;//输出比较极性
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TIM_OCInitStructure.TIM_OutputState=TIM_OutputState_Enable;
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TIM_OCInitStructure.TIM_Pulse=0; //CCR的值
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TIM_OC4Init(TIM1,&TIM_OCInitStructure);//TIM_OC1Init()函数用来初始化输出比较单元
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TIM_CtrlPWMOutputs(TIM1,ENABLE); //MOE 主输出使能
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TIM_OC4PreloadConfig(TIM1, TIM_OCPreload_Enable); //CH1预装载使能
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TIM_ARRPreloadConfig(TIM1, ENABLE); //使能TIMx在ARR上的预装载寄存器
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TIM_Cmd(TIM1,ENABLE);//定时器使能
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}
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void PWM3_Init(uint16_t Per,uint16_t Psc)
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{
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RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2,ENABLE);
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RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA,ENABLE);
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// RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO, ENABLE);
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// GPIO_PinRemapConfig(GPIO_PartialRemap1_TIM2, ENABLE);
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// GPIO_PinRemapConfig(GPIO_Remap_SWJ_JTAGDisable, ENABLE);
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GPIO_InitTypeDef GPIO_InitStructure;
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GPIO_InitStructure.GPIO_Mode=GPIO_Mode_AF_PP;
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GPIO_InitStructure.GPIO_Pin=GPIO_Pin_1; //PA1 TIM2_CH2
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GPIO_InitStructure.GPIO_Speed=GPIO_Speed_50MHz;
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GPIO_Init(GPIOA,&GPIO_InitStructure);
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TIM_TimeBaseInitTypeDef TIM_TimeBaseInitStructure;
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TIM_TimeBaseInitStructure.TIM_ClockDivision=TIM_CKD_DIV1;
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TIM_TimeBaseInitStructure.TIM_CounterMode=TIM_CounterMode_Up;
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TIM_TimeBaseInitStructure.TIM_Period=Per; //ARR
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TIM_TimeBaseInitStructure.TIM_Prescaler=Psc; //PSC
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TIM_TimeBaseInitStructure.TIM_RepetitionCounter=0;
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TIM_TimeBaseInit(TIM2,&TIM_TimeBaseInitStructure);
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TIM_OCInitTypeDef TIM_OCInitStructure;
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TIM_OCStructInit(&TIM_OCInitStructure);//给结构体赋初始值
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TIM_OCInitStructure.TIM_OCMode=TIM_OCMode_PWM1;//输出比较模式
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TIM_OCInitStructure.TIM_OCPolarity=TIM_OCPolarity_High;//输出比较极性
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TIM_OCInitStructure.TIM_OutputState=TIM_OutputState_Enable;
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TIM_OCInitStructure.TIM_Pulse=0; //CCR的值
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TIM_OC2Init(TIM2,&TIM_OCInitStructure);//TIM_OC1Init()函数用来初始化输出比较单元
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TIM_Cmd(TIM2,ENABLE);//定时器使能
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}
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void PWM_SetCompare1( uint16_t Compare)//更改占空比
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{
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TIM_SetCompare1(TIM1,Compare);
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}
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void PWM_SetCompare2( uint16_t Compare)//更改占空比
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{
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TIM_SetCompare2(TIM2,Compare);
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}
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void PWM_SetCompare4( uint16_t Compare)//更改占空比
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{
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TIM_SetCompare4(TIM1,Compare);
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}
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void TIM4_Init(u16 arr,u16 psc)
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{
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TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
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NVIC_InitTypeDef NVIC_InitStructure;
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RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM4, ENABLE); //设置TIM3时钟使能
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TIM_TimeBaseStructure.TIM_Period = arr; //设置重装载寄存器的周期
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TIM_TimeBaseStructure.TIM_Prescaler =psc; //设置时钟频率除数的预分频值
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TIM_TimeBaseStructure.TIM_ClockDivision = TIM_CKD_DIV1; //设置时钟分割
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TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up; //向上的计数模式
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TIM_TimeBaseInit(TIM4, &TIM_TimeBaseStructure); //TIM3的初始化
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TIM_ITConfig(TIM4,TIM_IT_Update,ENABLE ); //TIM3更新中断使能
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NVIC_InitStructure.NVIC_IRQChannel = TIM4_IRQn; //TIM3中断
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NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 2; //先占优先2级
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/// NVIC_InitStructure.NVIC_IRQChannelSubPriority = 3; //从占优先3级
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NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; //IRQ通道使能
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NVIC_Init(&NVIC_InitStructure); //初始化NVIC寄存器
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TIM_Cmd(TIM4, ENABLE); //使能TIM3
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}
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//定时器4中断服务程序
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void TIM4_IRQHandler(void) //TIM3中断
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{
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if (TIM_GetITStatus(TIM4, TIM_IT_Update) != RESET) //检查TIM3更新中断发生与否
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{
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TIM_ClearITPendingBit(TIM4, TIM_IT_Update ); //清除TIMx更新中断标志
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tick++;
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Feed_Dog_Count++;
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if( Feed_Dog_Count>5)
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{
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IWDG_FeedDog();
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Feed_Dog_Count=0;
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}
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// if(white<=1000&&white>0)
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// {
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// if(ins_1<=70)
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// {
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// PWM_SetCompare4(ins_1);
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// ins_1+=(white/100.0*2.8+30)/6;
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// //ins_1+=((white/10)/5);
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// printf("white pwm\r\n");
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// }
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// else
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// {
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// ins_1=0;
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// PWM_SetCompare4(0);
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// }
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//
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// }
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// if(white==0){
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// PWM_SetCompare4(0);
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// printf("white is 0!!!");
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// }
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}
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}
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