求助各位大佬,我现在在做光立方频谱,用的STC15W系列的单片机,采用定时器中断定时进行层扫描。当进行完ADC的初始化之后,给ADC_CONTR寄存器中的ADC_START置1开始采集数据,但是每次只要让ADC_CONTR的START位置1时,定时器都会扫描停止,也进不到定时器中断的程序。然而我的ADC其余的寄存器位配置的应该没问题,只要操作ADC_START位定时器中断就进不去了。请大佬们帮我分析一下是哪的原因,非常感谢!!!
- #define ADC_POWER 0x80
- #define ADC_SPEEDHH 0x60
- #define ADC_SPEEDH 0x40
- #define ADC_SPEEDL 0x20
- #define ADC_SPEEDLL 0x00
- #define ADC_FLAG 0x10
- #define ADC_START 0x08
- #define ADRJ 0x20
- #define CH0 0
- #define CH1 1
- #define CH2 2
- void Timer0init()
- {
- TMOD=0x01;
- TH0=0xF8;
- TL0=0x30;
- ET0=1;
- EA=1;
- TR0=1;
- }
- void ADC_Init()
- {
- P1ASF|=0x03;
-
- PADC=0;
-
- EA=1;
- EADC=1;
- ADC_RES=0;
- ADC_CONTR = ADC_POWER | ADC_SPEEDH;
- Delay(20);
- }
- uchar GetADC_data(uchar CH)
- {
- ADC_CONTR |=ADC_START+CH;
- TR0=1;
- _nop_();
- _nop_();
- _nop_();
- _nop_();
-
- while(!(ADC_CONTR & ADC_FLAG));
- ADC_CONTR &= ~ADC_FLAG; //Close ADC
-
- return ADC_RES; //Return ADC value
- }
- void main()
- {
- uchar i;
- cDATA=0x01;
- IO_Init();
- Timer0init();
- ADC_Init();
-
- while(1)
- {
- for(i=1;i<65;i++)
- ADC_data.real=GetADC_data(CH2);
- FFTProcess();
- led3=~led3;
- }
- }
- void timer0() interrupt 1 using 1
- {
- TH0=0xF8;
- TL0=0x30;
- P0=cDATA;
- led1=0;
- bright(ledBuf);
- if(cDATA>=0x80)
- cDATA=0x01;
- else
- {
- cDATA<<=1;
- led2=0;
- }
- }
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