TFT彩屏显示数字异常

待机唤醒

各位吧友，图中PWM一栏不显示其它数字，也就是数字一直为零，无论外界PWM怎么变（占空比有按键来改变，KEY一直变），PWM却不动，有大神知道什么原因么？




int main(void)

[mw_shl_code=c,true] { u16 adcx0,adcx1,adcx2,s1,s2=0; u8 t=0,s=0; float temp0,temp1,temp2,temp3; delay_init(); //延时函数初始化 uart_init(9600); //串口初始化为9600 // LED_Init(); //初始化与LED连接的硬件接口 // EXTIX_Init(); //外部中断初始化 LCD_Init(); KEY_Init(); //初始化与按键连接的硬件接口 Adc_Init(); //ADC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 TIM1_PWM_Init(3599,0);//不分频。PWM频率=72000/(899+1)=80Khz //2399 TIM3_Int_Init(199,7199);//10Khz的计数频率，计数到200为20ms // LED0=0; LCD_Clear(CYAN); POINT_COLOR=RED;//设置字体为红色 LCD_ShowString(30,30,250,100,24,"ADC0-V:"); LCD_ShowString(30,60,200,36,24,"ADC0-L:0.000V"); LCD_ShowString(30,90,250,100,24,"ADC1-V:"); LCD_ShowString(30,120,200,36,24,"ADC1-L:0.000V"); LCD_ShowString(30,150,250,100,24,"ADC2-V:"); LCD_ShowString(30,180,200,36,24,"ADC2-L:0.000V"); LCD_ShowString(30,220,200,36,24,"ADC-I:0.000A"); LCD_ShowString(30,250,200,36,24,"PWM: . %"); LCD_ShowString(30,280,200,36,24,"KEY:"); while(1) { TIM_SetCompare1(TIM1,s1);//1600 TIM_SetCompare4(TIM1,s1); //1600 //第一路采样 adcx0=Get_Adc_Average(ADC_Channel_0,10); LCD_ShowxNum(130,30,adcx0,4,24,0);//显示ADC的值 temp0=(float)adcx0*(3.3/4096); adcx0=temp0; LCD_ShowxNum(115,60,adcx0,1,24,0);//显示电压值 temp0-=adcx0; temp0*=1000; LCD_ShowxNum(137,60,temp0,3,24,0X80); //第二路采样 adcx1=Get_Adc_Average(ADC_Channel_1,10); LCD_ShowxNum(130,90,adcx1,4,24,0);//显示ADC的值 temp1=(float)adcx1*(3.3/4096); adcx1=temp1; LCD_ShowxNum(115,120,adcx1,1,24,0);//显示电压值 temp1-=adcx1; temp1*=1000; LCD_ShowxNum(137,120,temp1,3,24,0X80); //第三路采样 adcx2=Get_Adc_Average(ADC_Channel_2,10); LCD_ShowxNum(130,150,adcx2,4,24,0);//显示ADC的值 temp2=(float)adcx2*(3.3/4096); adcx2=temp2; LCD_ShowxNum(115,180,adcx2,1,24,0);//显示电压值 temp2-=adcx2; temp2*=1000; LCD_ShowxNum(137,180,temp2,3,24,0X80); //PWM计算占空比 temp3=(float)100*(s1/3600); s2=temp3; LCD_ShowxNum(90,250,s2,3,24,0); temp3-=s2; temp3*=100; LCD_ShowxNum(135,250,temp3,2,24,0X80); //按键值 LCD_ShowxNum(80,280,s1,5,24,0); t=KEY_Scan(0); //得到键值 switch(t) { case 1: PCout(5)=0; s1=s1+100; s++; delay_ms(50); break; case 2: PCout(5)=0; s1-=100; // s2=(float)(s1/3600)*100; s--; delay_ms(50); break; case 3: PCout(5)=0; // s+=0.1; delay_ms(50); break; case 4: PCout(5)=0; // s-=0.1; delay_ms(50); break; default: delay_ms(10); } } } [/mw_shl_code]

正点原子

慢慢调代码，呵呵。

待机唤醒

回复【2楼】正点原子:
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原子哥，帮忙看看PWM计算哪里不对了？谢谢啦