我的代码在 16F690 上完美运行，但在使用 MPLAB X 和 XC8 的 16F18313 上运行不佳

问题描述 投票：0回答：1

好吧，我有一些代码可以在 16F690 上完美运行，但我需要它在 16F18313 上运行。该代码的目的是检测箱盖何时打开和关闭，并打开风扇 25 秒。基本上，PIC 以睡眠模式启动，在中断时唤醒，检查盒盖是否打开和关闭，打开引脚 25 秒，然后清除中断并返回睡眠状态。我在这两个版本上都没有收到任何错误。当我在 16F18313 上运行代码时，RA0 始终保持高电平。

我包含了这两种设备的所有 C 代码。首先，这是 16F690 上的工作代码：

/*
 * File:   SH_Fan_16F690.c
 * Author: marka
 *
 * Created on October 4, 2023, 10:39 AM
 */

#include <xc.h>
#include <stdint.h>
#include <stdbool.h>

// Configuration bits
#pragma config FOSC = INTRCIO, WDTE = OFF, PWRTE = OFF, MCLRE = OFF, CP = OFF, CPD = OFF, BOREN = OFF, IESO = OFF, FCMEN = OFF

#define _XTAL_FREQ 4000000UL //4MHz
#define FAN_PIN  PORTCbits.RC1
#define SENSOR_PIN PORTAbits.RA3

static uint8_t previous_state = 1;
static uint8_t current_state = 1;
static uint16_t timer = 0;

void __interrupt() myISR(void);

void main(void) {
    // Setup
    // Configure RC1 as output for the fan and RA3 as input for the sensor
    TRISC1 = 0;
    TRISA3 = 1;

    // Initialize fan pin to low
    FAN_PIN = 0;

    // Enable GPIO Change Interrupt on RA3
    IOCA3 = 1;
    INTCONbits.RABIE = 1; // Enable Port A and B interrupt
    INTCONbits.PEIE = 1; // Enable peripheral interrupt

    // Clear any stray interrupt flags
    INTCONbits.RABIF = 0;

    // Enable global interrupts
    INTCONbits.GIE = 1;

    // Main loop
    while (1) {
        // Put the device to sleep. It will wake up on GPIO change.
        asm("SLEEP");
    }
}

void __interrupt() myISR(void) {
    // Disable interrupts temporarily
    INTCONbits.GIE = 0;

    // Check if the interrupt is due to a GPIO change
    if (INTCONbits.RABIF) {
        // Debouncing logic: wait 20 ms before re-reading the sensor state
        __delay_ms(20);

        // Read the current state of the sensor
        current_state = SENSOR_PIN;

        // Check state transition
        if ((previous_state == 0) && (current_state == 1)) {
            // Box was open, now closed
            // Turn on the fan for 25 seconds
            FAN_PIN = 1;

            // Wait 25 seconds
            for (timer = 1; timer <= 25000; ++timer) {
                __delay_ms(1);
            }

            // Turn off the fan
            FAN_PIN = 0;
        }

        // Update the previous state
        previous_state = current_state;

        // Clear the interrupt flag
        INTCONbits.RABIF = 0;
    }

    // Re-enable interrupts
    INTCONbits.GIE = 1;
}

这是 16F18313 上的代码：


/*
 * File:   SH_Fan_16F18313.c
 * Author: marka
 *
 * Created on October 4, 2023, 10:39 AM
 */
#include <xc.h>
#include <stdint.h>
#include <stdbool.h>

// 'C' source line config statements

// CONFIG1
#pragma config FEXTOSC = ECH    // FEXTOSC External Oscillator mode Selection bits (EC (external clock) above 8 MHz)
#pragma config RSTOSC = HFINT32 // Power-up default value for COSC bits (HFINTOSC with 2x PLL (32MHz))
#pragma config CLKOUTEN = OFF   // Clock Out Enable bit (CLKOUT function is disabled; I/O or oscillator function on OSC2)
#pragma config CSWEN = ON       // Clock Switch Enable bit (Writing to NOSC and NDIV is allowed)
#pragma config FCMEN = ON       // Fail-Safe Clock Monitor Enable (Fail-Safe Clock Monitor is enabled)

// CONFIG2
#pragma config MCLRE = OFF       // Master Clear Enable bit (MCLR/VPP pin function is MCLR; Weak pull-up enabled )
#pragma config PWRTE = OFF      // Power-up Timer Enable bit (PWRT disabled)
#pragma config WDTE = OFF        // Watchdog Timer Enable bits (WDT enabled, SWDTEN is ignored)
#pragma config LPBOREN = OFF    // Low-power BOR enable bit (ULPBOR disabled)
#pragma config BOREN = OFF       // Brown-out Reset Enable bits (Brown-out Reset enabled, SBOREN bit ignored)
#pragma config BORV = LOW       // Brown-out Reset Voltage selection bit (Brown-out voltage (Vbor) set to 2.45V)
#pragma config PPS1WAY = OFF     // PPSLOCK bit One-Way Set Enable bit (The PPSLOCK bit can be cleared and set only once; PPS registers remain locked after one clear/set cycle)
#pragma config STVREN = OFF      // Stack Overflow/Underflow Reset Enable bit (Stack Overflow or Underflow will cause a Reset)
#pragma config DEBUG = OFF      // Debugger enable bit (Background debugger disabled)

// CONFIG3
#pragma config WRT = OFF        // User NVM self-write protection bits (Write protection off)
#pragma config LVP = OFF         // Low Voltage Programming Enable bit (Low voltage programming enabled. MCLR/VPP pin function is MCLR. MCLRE configuration bit is ignored.)

// CONFIG4
#pragma config CP = OFF         // User NVM Program Memory Code Protection bit (User NVM code protection disabled)
#pragma config CPD = OFF        // Data NVM Memory Code Protection bit (Data NVM code protection disabled)

// #pragma config statements should precede project file includes.
// Use project enums instead of #define for ON and OFF.
#define _XTAL_FREQ 4000000UL // 4MHz
#define FAN_PIN  LATAbits.LATA0  // Fan connected to RA0
#define SENSOR_PIN PORTAbits.RA2  // Sensor connected to RA2

static uint8_t previous_state = 1;
static uint8_t current_state = 1;
static uint16_t timer = 0;

void __interrupt() myISR(void);

void main(void) {
    // Setup
    TRISAbits.TRISA0 = 0; // RA0 as output for the fan
    TRISAbits.TRISA2 = 1; // RA2 as input for the sensor

    // Initialize fan pin to low
    FAN_PIN = 0;

    // Enable GPIO Change Interrupt on RA2
    IOCAPbits.IOCAP2 = 1;
    PIE0bits.IOCIE = 1; // Enable Interrupt-On-Change
    INTCONbits.PEIE = 1; // Enable peripheral interrupt

    // Clear any stray interrupt flags
    PIR0bits.IOCIF = 0;

    // Enable global interrupts
    INTCONbits.GIE = 1;

    // Main loop
    while (1) {
        // Sleep mode
        asm("SLEEP");
    }
}

void __interrupt() myISR(void) {
    // Disable interrupts temporarily
    INTCONbits.GIE = 0;

    // Check if the interrupt is due to a GPIO change
    if (PIR0bits.IOCIF) {
        // Debouncing: wait 20 ms before re-reading the sensor state
        __delay_ms(20);

        // Read the current state of the sensor
        current_state = SENSOR_PIN;

        // Check state transition
        if ((previous_state == 0) && (current_state == 1)) {
            // Box was open, now closed
            FAN_PIN = 1; // Turn on the fan for 25 seconds

            // Wait 25 seconds
            for (timer = 1; timer <= 25000; ++timer) {
                __delay_ms(1);
            }

            // Turn off the fan
            FAN_PIN = 0;
        }

        // Update the previous state
        previous_state = current_state;

        // Clear the interrupt flag
        PIR0bits.IOCIF = 0;
    }

    // Re-enable interrupts
    INTCONbits.GIE = 1;
}
pic xc8
1个回答
0
投票

答案是为 PORTA 启用数字 I/O。

并且您的代码清除更改中断的方式可能不起作用。

这段代码可能会更好：

/*
 * File:   SH_Fan_16F18313.c
 * Author: marka
 *
 * Created on October 4, 2023, 10:39 AM
 * 
 *                    PIC16F18313
 *              +---------:_:---------:
 *     5v0 -> 1 : VDD             VSS : 8 <- GND
 *         <> 2 : RA5/AN5     AN0/RA0 : 7 <> PGD
 *         <> 3 : RA4/AN4     AN1/RA1 : 6 <> PGC
 *     VPP -> 4 : RA3/MCLRn   AN2/RA2 : 5 <>
 *              +---------------------+
 *                       DIP-8
 */
#include <xc.h>
#include <stdint.h>
#include <stdbool.h>

// 'C' source line config statements

// CONFIG1
#pragma config FEXTOSC = ECH    // FEXTOSC External Oscillator mode Selection bits (EC (external clock) above 8 MHz)
#pragma config RSTOSC = HFINT32 // Power-up default value for COSC bits (HFINTOSC with 2x PLL (32MHz))
#pragma config CLKOUTEN = OFF   // Clock Out Enable bit (CLKOUT function is disabled; I/O or oscillator function on OSC2)
#pragma config CSWEN = ON       // Clock Switch Enable bit (Writing to NOSC and NDIV is allowed)
#pragma config FCMEN = ON       // Fail-Safe Clock Monitor Enable (Fail-Safe Clock Monitor is enabled)

// CONFIG2
#pragma config MCLRE = OFF       // Master Clear Enable bit (MCLR/VPP pin function is MCLR; Weak pull-up enabled )
#pragma config PWRTE = OFF      // Power-up Timer Enable bit (PWRT disabled)
#pragma config WDTE = OFF        // Watchdog Timer Enable bits (WDT enabled, SWDTEN is ignored)
#pragma config LPBOREN = OFF    // Low-power BOR enable bit (ULPBOR disabled)
#pragma config BOREN = OFF       // Brown-out Reset Enable bits (Brown-out Reset enabled, SBOREN bit ignored)
#pragma config BORV = LOW       // Brown-out Reset Voltage selection bit (Brown-out voltage (Vbor) set to 2.45V)
#pragma config PPS1WAY = OFF     // PPSLOCK bit One-Way Set Enable bit (The PPSLOCK bit can be cleared and set only once; PPS registers remain locked after one clear/set cycle)
#pragma config STVREN = OFF      // Stack Overflow/Underflow Reset Enable bit (Stack Overflow or Underflow will cause a Reset)
#pragma config DEBUG = OFF      // Debugger enable bit (Background debugger disabled)

// CONFIG3
#pragma config WRT = OFF        // User NVM self-write protection bits (Write protection off)
#pragma config LVP = OFF         // Low Voltage Programming Enable bit (Low voltage programming enabled. MCLR/VPP pin function is MCLR. MCLRE configuration bit is ignored.)

// CONFIG4
#pragma config CP = OFF         // User NVM Program Memory Code Protection bit (User NVM code protection disabled)
#pragma config CPD = OFF        // Data NVM Memory Code Protection bit (Data NVM code protection disabled)

// #pragma config statements should precede project file includes.
// Use project enums instead of #define for ON and OFF.
#define _XTAL_FREQ 4000000UL // 4MHz
#define FAN_PIN  LATAbits.LATA0  // Fan connected to RA0
#define SENSOR_PIN PORTAbits.RA2  // Sensor connected to RA2

static uint8_t previous_state = 1;
static uint8_t current_state = 1;
static uint16_t timer = 0;

void __interrupt() myISR(void);

void main(void) {
    
    /*
     * Add code to setup GPIO hardware
     */
    ANSELA = 0;     /* make all GPIO pins digital I/O DS40001799F-page 13 */
    SLRCONA = 0;    /* set output slew rate to maximum */
    ODCONA = 0;     /* set output as push-pull */
    WPUA = 0;       /* turn off weak pull-ups */
    
    // Setup
    TRISAbits.TRISA0 = 0; // RA0 as output for the fan
    TRISAbits.TRISA2 = 1; // RA2 as input for the sensor

    // Initialize fan pin to low
    FAN_PIN = 0;

    // Enable GPIO Change Interrupt on RA2
    IOCAPbits.IOCAP2 = 1;
    PIE0bits.IOCIE = 1; // Enable Interrupt-On-Change
    INTCONbits.PEIE = 1; // Enable peripheral interrupt

    // Clear any stray interrupt flags
    PORTA;                  /* Read PORTA to clear any mismatch for IOC */
    IOCAF &= (~IOCAF);      /* Clear IOC bits that changed */
    PIR0bits.IOCIF = 0;

    // Enable global interrupts
    INTCONbits.GIE = 1;

    // Main loop
    while (1) {
        // Sleep mode
        asm("SLEEP");
    }
}

void __interrupt() myISR(void) {
    // Disable interrupts temporarily
    INTCONbits.GIE = 0;

    // Check if the interrupt is due to a GPIO change
    if (PIR0bits.IOCIF) {
        // Debouncing: wait 20 ms before re-reading the sensor state
        __delay_ms(20);

        // Read the current state of the sensor
        current_state = SENSOR_PIN;

        // Check state transition
        if ((previous_state == 0) && (current_state == 1)) {
            // Box was open, now closed
            FAN_PIN = 1; // Turn on the fan for 25 seconds

            // Wait 25 seconds
            for (timer = 1; timer <= 25000; ++timer) {
                __delay_ms(1);
            }

            // Turn off the fan
            FAN_PIN = 0;
        }

        // Update the previous state
        previous_state = current_state;

        // Clear the interrupt flag
        PORTA;                  /* Read PORTA to clear any mismatch for IOC */
        IOCAF &= (~IOCAF);      /* Clear IOC bits that changed */
        PIR0bits.IOCIF = 0;
    }
}
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