怎么测量不同输入PIC16F1938之间的时间

大家好，我目前正在使用PIC16F1938，我正在寻找一种方法来测量脉冲从低到高或高到低的时间。我在使用：-8MHz时钟源-PIC16F1938 -中断在寻找低到高和高到低的边缘- RA5-time0在1MSE工作。问题是，我找不到或想一个好的算法来测量从那个管脚输入的每一个时间。你知道测量微控制器中输入的时间的正确方法吗？我所想的是对RA5状态的每一个变化进行中断处理，然后，如果计时器达到1ms，检查RA5中的IOC-FLAG（当PIN状态发生变化时，它将建议），并保存该事件的时间或持续时间。口粮的特定时间，看看是否有足够的龙做其他事情：让我分享你的一段代码，让你看看我实际上：



      以下为原文

    Hello People, I'm currently working with the PIC16F1938 and I'm looking for a way to measure the time that a pulse go from low to high or high to low. I'm using:- 8MHz clock source- PIC16F1938- Interrupt-on-Change to look for the both low to high and high to low edges - RA5- timer0 working at 1ms  The problem is that I can't find or think a good algorithm to measure the time that last every input from that pin. Did you know a proper way to measure the time that last an input in the microcontroller?  What I was thinking is to work with Interrupts for every change on the RA5 state, then, if the timer gets 1ms elapsed, check for the IOC-FLAG in RA5 (which will advice when there is a change in the state of the pin) and save the time or duration of that event. What I need is to compare later this durations for a specific time to see if is loong enough to do something else: Let me share you a piece of the code to show you what I have actually:

void processor_init(void)
{
    OSCCONbits.IRCF = 0b1110; // 8MHz Clock Source selected
    OSCCONbits.SCS = 0b00; // Internal Oscillator selected
    ANSELA = 0x00; // Setting all PORTA as Digital
    TRISAbits.TRISA5 = ON; // PIR_INPUT pin as Input
    LATAbits.LATA4 = OFF; // Initially Off state in DETECTION_OUTPUT
}

void IOC_init(void)
{
    INTCONbits.GIE = 1; // Enable Global Interrupts
    INTCONbits.IOCIF = 0; // Clean interrupt flags
    INTCONbits.IOCIE = 1; // Enable IOC Interrupts
    IOCBPbits.IOCBP5 = 1; // Enable IOC RA5 Positive Edge (PIR_INPUT)
    IOCBNbits.IOCBN5 = 1; // Enable IOC RA5 Negative Edge (PIR_INPUT)
    IOCBFbits.IOCBF5 = 0; // Clean IOC Interrupt flag
}


void timer0_init(void)
{
    // TMR0 Initialization
    OPTION_REGbits.TMR0CS = 0; // As timer Fosc/4
    OPTION_REGbits.TMR0SE = 0; // Increment on low-to-high transition. No relevance.
    OPTION_REGbits.PSA = 0; // Prescaler is assigned to TMR0.
    OPTION_REGbits.PS = 0b111; // 256 Prescaler selected
   
    // TMR0 overflow = 5ms
    //TMR0 = 217; // 5ms overflow
    TMR0 = 247; // 1 ms overflow = 247
}


void interrupt IOC()
{
    if(TMR0 == 255) // if TMR0 has reached 1 ms already
    {
        if(IOCBFbits.IOCBF5)
        {
            IN_STATE = TMR0; // This is where I need to improve better my code
            TMR0 = 247; // Restore the timer
            IOCBFbits.IOCBF5 = 0; // Clean IOC flag
        }
    }
    else
    {
       if(IOCBFbits.IOCBF5)
    {
        // I'm almost sure that I need to do something here, when is not elapsed 1ms yet
     IOCBFbits.IOCBF5 = 0;
    }
}
}

void main(void)
{
    processor_init();
    IOC_init();
    timer0_init();
    while(1);
}