灯为什么一直亮着主函数while控制led1灯的闪灭中断处理AD采集的数据

逍遥剑客 · 发表于 2014-10-11 15:53:16

[mw_shl_code=c,true]为什么LED1的一直是亮的[/mw_shl_code] [mw_shl_code=c,true] [/mw_shl_code] [mw_shl_code=c,true]中断[/mw_shl_code] [mw_shl_code=c,true]void TIM3_IRQHandler(void) { if (TIM_GetITStatus(TIM3, TIM_IT_Update) != RESET) { TIM_ClearITPendingBit(TIM3, TIM_IT_Update); if((++ADCnumber)==50)ADCnumber=0; if((++ADC_diffnumber)==10)ADC_diffnumber=0; ADCbuf_diffarc=ADC_diff[ADC_diffnumber]; adcx=Get_Adc_Average(ADC_Channel_1,10); temp=(float)adcx*(3.3/4096); ADCarc[ADCnumber]=temp; if(ADCnumber>=1) { ADC_diff[ADC_diffnumber]=abs(ADCarc[ADCnumber]-ADCarc[ADCnumber-1]); } else { ADC_diff[ADC_diffnumber]=abs(ADCarc[ADCnumber]-ADCarc[ADCnumber+7]); } ADCnum_diffarc=ADCnum_diffarc+ADC_diff[ADC_diffnumber]-ADCbuf_diffarc; LCD_ShowxNum(172,150,ADCnum_diffarc,3,16,0X80); if(ADCnum_diffarc>2) {LED0=0;} else {LED0=1;} delay_us(19950); }[/mw_shl_code] [mw_shl_code=c,true]main主函数[/mw_shl_code] [mw_shl_code=c,true]

[mw_shl_code=c,true]#include "led.h" #include "delay.h" #include "key.h" #include "sys.h" #include "lcd.h" #include "usart.h" #include "adc.h" #include "timer.h" int main(void) { delay_init(); NVIC_Configuration(); uart_init(9600); LED_Init(); LCD_Init(); Adc_Init(); TIM3_Int_Init(499,1439); while(1) { GPIO_ResetBits(GPIOE,GPIO_Pin_5); delay_ms(300); GPIO_SetBits(GPIOE,GPIO_Pin_5); delay_ms(300); } } [/mw_shl_code]

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