STM32 PWM捕获红外信号并且通过液晶显示解码信号.doc

#include led.h#include delay.h#include sys.h#include lcd.h#include usart.h #include remote.h int main(void) delay_init(72); /延时函数初始化 NVIC_Configuration(); /设置NVIC中断分组2:2位抢占优先级，2位响应优先级 uart_init(9600); /串口初始化为9600 LED_Init(); /LED端口初始化 LCD_Init(); Remote_Init();/红外接收初始化 POINT_COLOR=RED;/设置字体为红色 LCD_ShowString(60,50,Mini STM32); LCD_ShowString(60,70,REMOTE TEST); LCD_ShowString(60,90,ATOMALIENTEK); LCD_ShowString(60,110,2011/1/1); while(1) if(IrRecFlag = 1) IrRecAddr1 = IrRecBuff0; IrRecAddr2 = IrRecBuff1; IrRecData1 = IrRecBuff2; IrRecData2 = IrRecBuff3; IrRecFlag = 0; switch(IrRecData1) case 0: LCD_ShowString(86,150, ERROR); break; case 162: LCD_ShowString(86,150, POWER); break; case 98: LCD_ShowString(86,150, UP );break; case 2: LCD_ShowString(86,150, PLAY );break; case 226: LCD_ShowString(86,150, ALIEN );break; case 194: LCD_ShowString(86,150, RIGHT );break; case 34: LCD_ShowString(86,150, LEFT );break; case 56: LCD_ShowString(86,150, 8 );break; case 224: LCD_ShowString(86,150, VOL- );break; case 168: LCD_ShowString(86,150, DOWN );break; case 144: LCD_ShowString(86,150, VOL+ );break; case 104: LCD_ShowString(86,150, 1 );break; case 152: LCD_ShowString(86,150, 2 );break; case 176: LCD_ShowString(86,150, 3 );break; case 48: LCD_ShowString(86,150, 4 );break; case 24: LCD_ShowString(86,150, 5 );break; case 122: LCD_ShowString(86,150, 6 );break; case 16: LCD_ShowString(86,150, 7 );break; case 90: LCD_ShowString(86,150, 9 );break; case 66: LCD_ShowString(86,150, 0 );break; case 82: LCD_ShowString(86,150, DELETE);break; #include remote.h#include delay.h#include usart.h#include / /本程序只供学习使用，未经作者许可，不得用于其它任何用途/ALIENTEK战舰STM32开发板/红外遥控解码驱动 代码 /正点原子ALIENTEK/技术论坛:/修改日期:2012/9/12/版本：V1.0/版权所有，盗版必究。/Copyright(C) 广州市星翼电子科技有限公司 2009-2019/All rights reserved /const u8 IrCode8=0x01,0x02,0x04,0x08,0x10,0x20,0x40,0x80;u8 IrRecStep = 0; u8 IrIndex = 0; u8 IrRecFlag = 0; u8 IrRecBuff4; u8 IrRecAddr1; u8 IrRecAddr2;u8 IrRecData1; u8 IrRecData2;u16 IrCycle = 0; u16 IrHigh = 0; void Remote_Init(void) GPIO_InitTypeDef GPIO_InitStructure; TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure; TIM_ICInitTypeDef TIM_ICInitStructure; NVIC_InitTypeDef NVIC_InitStructure; RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE); RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2 , ENABLE); GPIO_InitStructure.GPIO_Pin = GPIO_Pin_1; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPD; GPIO_InitStructure.GPIO_Speed=GPIO_Speed_50MHz; GPIO_Init(GPIOA, &GPIO_InitStructure); GPIO_SetBits(GPIOA,GPIO_Pin_1); TIM_TimeBaseStructure.TIM_Period = 0xffff; TIM_TimeBaseStructure.TIM_Prescaler = (72 - 1); TIM_TimeBaseStructure.TIM_ClockDivision = 0x0; TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up; TIM_TimeBaseInit(TIM2, &TIM_TimeBaseStructure); TIM_ICInitStructure.TIM_Channel = TIM_Channel_2; TIM_ICInitStructure.TIM_ICPolarity = TIM_ICPolarity_Rising; TIM_ICInitStructure.TIM_ICSelection = TIM_ICSelection_DirectTI; TIM_ICInitStructure.TIM_ICPrescaler = TIM_ICPSC_DIV1; TIM_ICInitStructure.TIM_ICFilter = 0x03; TIM_PWMIConfig(TIM2, &TIM_ICInitStructure); TIM_SelectInputTrigger(TIM2, TIM_TS_TI2FP2); TIM_SelectSlaveMode(TIM2, TIM_SlaveMode_Reset); TIM_SelectMasterSlaveMode(TIM2, TIM_MasterSlaveMode_Enable); TIM_ITConfig(TIM2, TIM_IT_CC2, ENABLE); TIM_ClearITPendingBit(TIM2,TIM_IT_CC2); NVIC_InitStructure.NVIC_IRQChannel = TIM2_IRQn; NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0; NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0; NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; NVIC_Init(&NVIC_InitStructure); TIM_Cmd(TIM2, ENABLE);void TIM2_IRQHandler(void) u16 Dval=0; if(TIM_GetITStatus(TIM2,TIM_IT_CC2)!=RESET) TIM_ClearITPendingBit(TIM2, TIM_IT_CC2); IrCycle = TIM_GetCapture2(TIM2); IrHigh =TIM_GetCapture1(TIM2); Dval= IrCycle-IrHigh; TIM_SetCounter(TIM2,0); switch(IrRecStep) case 0: IrIndex=0; if (Dval IrHeadLow_Min) IrRecStep = 1; memset(IrRecBuff,0,sizeof(IrRecBuff); break; case 1: if (IrHigh IrHeadHigh_Min) IrRecStep = 2; break; case 2: if (IrCycle IrData00_Min)&(IrCycle IrData0_Min)&(IrHigh IrData10_Min)&(IrCycle IrData1_Min)&(IrHigh 3 |= IrCode7-IrIndex & 0x07; IrIndex+; else IrRecStep = 0; else IrRecStep = 0; if(IrIndex = 32) IrRecStep = 0; IrRecFlag = 1; break; default:break; #ifndef _RED_H#define _RED_H #include sys.h / /本程序只供学习使用，未经作者许可，不得用于其它任何用途/ALIENTEK战舰STM32开发板/红外遥控解码驱动 代码 /正点原子ALIENTEK/技术论坛:/修改日期:2012/9/12/版本：V1.0/版权所有，盗版必究。/Copyright(C) 广州市星翼电子科技有限公司 2009-2019/All rights reserved / #define RDATA PAin(1) /红外数据输入脚/-引导码低电平范围-#define IrHeadLow_Max 9500 #define IrHeadLow_Min 8400 /-引导码高电平范围-#define IrHeadHigh_Max 5000 #define IrHeadHigh_Min 4200 /-数据0的周期范围-#define IrData00_Max 1200 #define IrData00_Min 1040 /-数据1的周期范围-#define IrData10_Max 2320 #define IrData10_Min 2160 /-数据0的占空比(高电平)范围-#define IrData0_Max 640 #define IrData0_Min 300 /-数据1的占空比(高电平)范围-#define IrData1_Max 1760 #define IrData1_Min 1600 #define