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你好，请问你知道为什么我的PIC12F509的C代码（XC8）不工作吗？它所要做的是读取GP5上的方波电压输入，然后将GP4从高变为低，反之亦然，每秒GP5低。然而，GP4总是保持低位。你知道为什么吗？它建立成功但不工作
以上来自于百度翻译 以下为原文 Hello, Please do you know why my C code (XC8) for PIC12F509 doesnt work? All its supposed to do is read a square wave voltage input on GP5, and then change GP4 from high to low and vice versa, every second low-going of GP5. However, GP4 is always just staying low. Do you kow why? It builds successfully but doesn’t work /* * File: jitter.c * Author: * * Created on 8 sept 2017, 23:55 */ //this code jitters //This uses PIC12F509 //MPLAB X IDE //XC8 C compiler (free) #define _XTAL_FREQ 4000000 #include #include // #pragma config OSC = IntRC // Oscillator Selection bits (external RC oscillator) #pragma config WDT = OFF // Watchdog Timer Enable bit (WDT disabled) #pragma config CP = OFF // Code Protection bit (Code protection off) #pragma config MCLRE = OFF // GP3/MCLR Pin Function Select bit (GP3/MCLR pin function is MCLR) //I have not set the MCLR pin as an input because it will be noise susceptible. //Therefore i set MCLR up as reset, but i will never use it as reset..but will //simply tie the pin top Vdd on the PCB. //Declare functions which set up the microcontroller //void disable_interrupts(void); //How do this? //void disable_pullups(void); //How do this? // TRIS = 0x18; //Declare variables uint8_t count; void main(void) { GP0 = 0; GP1 = 0; GP2 = 0; GP4 = 0; GP5 = 0; OPTION = 0xD7; TRISGPIO = 0x20; GP4 = 0; //5 second delay for (count=1;count<=50;count++) { __delay_ms(100); } while(GP5 == 0) ; while(GP5 == 1) ; //STATUS LOW FIRST //When it gets to this point, the STATUS input has just gone low __delay_us(500); GP4 = 0; //FET OFF while(1){ while(GP5 == 0) ; //See out the rest of low STATUS while(GP5 == 1) ; //See out the high STATUS while(GP5 == 0) ; //See out the low STATUS while(GP5 == 1) ; //See out the high STATUS //STATUS LOW SECOND __delay_us(500); GP4 = 1; //FET ON while(GP5 == 0) ; //See out the rest of low STATUS while(GP5 == 1) ; //See out the high STATUS while(GP5 == 0) ; //See out the low STATUS while(GP5 == 1) ; //See out the high STATUS __delay_us(500); GP4 = 0; } while(1){;} return; } 
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2个回答
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不要试图同时解决两个问题，你能简单地让GP4在没有GP5测试的情况下闪现吗？
以上来自于百度翻译 以下为原文 Don't try to solve two problems at once. Can you simply get GP4 to flash without the GP5 tests? |
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选项＝0xD7；假设哪些位被设置而不是一些随机数。
以上来自于百度翻译 以下为原文 OPTION = 0xD7; Say what bits are set rather than some random number. |
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