pic16F628 TMR0不能在硬件设备上工作

你好。我正在努力理解它是如何工作的。我使用内部时钟源4 MHz来产生不同长度的延迟。在MLAB X IDE TMR0工作中，我看到逻辑分析仪MPLAB中的延迟。但是，当我编程硬件设备时，我在数字示波器上什么也看不见。我做了什么错事？



      以下为原文

    Hello.
I'm trying to understand how it works.

I use internal clock sourse 4 MHz to generate delay of different lengths.

In the MLAB X IDE TMR0 work, and i see delay in the logic analyzer MPLAB.
But when i programm my hardware device, i don't see nothing on the digital oscilloscope.

What have I do wrong?

#pragma config FOSC = INTOSCCLK // Oscillator Selection bits (INTOSC oscillator: CLKOUT function on RA6/OSC2/CLKOUT pin, I/O function on RA7/OSC1/CLKIN)
#pragma config WDTE = OFF // Watchdog Timer Enable bit (WDT disabled)
#pragma config PWRTE = OFF // Power-up Timer Enable bit (PWRT disabled)
#pragma config MCLRE = ON // RA5/MCLR/VPP Pin Function Select bit (RA5/MCLR/VPP pin function is MCLR)
#pragma config BOREN = OFF // Brown-out Detect Enable bit (BOD disabled)
#pragma config LVP = OFF // Low-Voltage Programming Enable bit (RB4/PGM pin has digital I/O function, HV on MCLR must be used for programming)
#pragma config CPD = OFF // Data EE Memory Code Protection bit (Data memory code protection off)
#pragma config CP = OFF // Flash Program Memory Code Protection bit (Code protection off)

#include

void Timer_Init()
{
    TMR0IE = 1;
    INTCONbits.T0IE = 1;
    GIE = 1;
   
    OPTION_REGbits.T0CS = 0;
    OPTION_REGbits.T0SE = 0;
    OPTION_REGbits.PSA = 0;
    OPTION_REGbits.PS2 = 0;
    OPTION_REGbits.PS1 = 0;
    OPTION_REGbits.PS0 = 0;
   
}

void interrupt isr()
{
    if(TMR0IF == 1)
    {
        TMR0 = 101;
        RA1 =~ RA1;
        INTCONbits.T0IF = 0;
    }
}


void main(void)
{
   TRISA1 = 0;
      
   RA1 = 1;
   
   TMR0 = 100;
   
   Timer_Init();
   
   while(1);
}

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