18F24J11 RTCC辅助振荡器怎么修改

好啊。首先，我有RTFM在任何人说我应该。我很可能错过了一些东西，但我确实读过了。我正在努力让RTC工作，但没有成功。我的芯片时钟从内部振荡器在8MHz。我有一个32.768 kHz的晶体在T1输入在引脚11和12与18PF上限到地面上的两条腿。我已经验证了使用PICtiT3，我正在修改RTCCFG寄存器，虽然这样做的方法是绝对的疯子在我看来。我只是不知道还有什么可以让它发挥作用。也许我只是不明白这件事该怎么做。这就是我要做的。我总是很简单。我只希望RTC输出（引脚22）给我一个1秒的周期脉冲。我尝试过和没有启用警报，有和没有TMR1启用，有和没有高功率振荡器启用，我不知道还有什么要做。那么，有人能看一下这个，告诉我哪里搞砸了吗？下面是代码：



      以下为原文

    OK. First, I have RTFM before anyone says I should. It's quite possible I missed something, but I did read it.

I am trying to get the RTC to work and am not having any success. I have the chip clocked from the internal oscillator at 8MHz. I have a 32.768 KHz crystal on the T1 inputs at pins 11 and 12 with 18pF caps to ground on both legs.

I have verified using Pickit3 that I am modifying the RTCCFG register, although the method for doing so is absolutely bonkers in my opinion. I just don't know what else to try to get it to work. Perhaps I just don't get what this thing is really supposed to be doing.

Here's what I am TRYING to do. I always start simple. I just want the RTC output (pin 22) to give me a 1 second periodic pulse. I have tried with and without the alARM enabled, with and without tmr1 enabled, with and without hi-power oscillator enabled, I don't know what else to do. So will someone please look at this and tell me where I screwed up?
Here is the code:

// CONFIG1L
#pragma config WDTEN = OFF // Watchdog Timer (Disabled - Controlled by SWDTEN bit)
#pragma config STVREN = OFF // Stack Overflow/Underflow Reset (Disabled)
#pragma config XINST = OFF // Extended Instruction Set (Disabled)

// CONFIG1H
#pragma config CP0 = OFF // Code Protect (Program memory is not code-protected)

// CONFIG2L
#pragma config OSC = INTOSCPLL // Oscillator (INTOSCPLL)
#pragma config T1DIG = ON // T1OSCEN Enforcement (Secondary Oscillator clock source may be selected)
#pragma config LPT1OSC = ON // Low-Power Timer1 Oscillator (Low-power operation)
#pragma config FCMEN = OFF // Fail-Safe Clock Monitor (Disabled)
#pragma config IESO = OFF // Internal External Oscillator Switch Over Mode (Disabled)

// CONFIG2H
#pragma config WDTPS = 32768 // Watchdog Postscaler (1:32768)

// CONFIG3L
#pragma config DSWDTOSC = INTOSCREF// DSWDT Clock Select (DSWDT uses INTRC)
#pragma config RTCOSC = T1OSCREF// RTCC Clock Select (RTCC uses T1OSC/T1CKI)
#pragma config DSBOREN = OFF // Deep Sleep BOR (Disabled)
#pragma config DSWDTEN = OFF // Deep Sleep Watchdog Timer (Disabled)
#pragma config DSWDTPS = G2 // Deep Sleep Watchdog Postscaler (1:2,147,483,648 (25.7 days))

// CONFIG3H
#pragma config IOL1WAY = OFF // IOLOCK One-Way Set Enable bit (The IOLOCK bit (PPSCON<0>) can be set and cleared as needed)
#pragma config MSSP7B_EN = MSK7 // MSSP address masking (7 Bit address masking mode)

// CONFIG4L
#pragma config WPFP = PAGE_15 // Write/Erase Protect Page Start/End Location (Write Protect Program Flash Page 15)
#pragma config WPEND = PAGE_WPFP// Write/Erase Protect Region Select (valid when WPDIS = 0) (Page WPFP<5:0> through Configuration Words erase/write protected)
#pragma config WPCFG = OFF // Write/Erase Protect Configuration Region (Configuration Words page not erase/write-protected)

// CONFIG4H
#pragma config WPDIS = OFF // Write Protect Disable bit (WPFP<5:0>/WPEND region ignored)

#include

#define ON 1
#define OFF 0

//Global Variables
volatile union
{
    struct
    {
        unsigned f0:1;
        unsigned f1:1;
        unsigned f2:1;
        unsigned f3:1;
        unsigned f4:1;
        unsigned f5:1;
        unsigned f6:1;
        unsigned f7:1;
    };
    struct
    {
        unsigned tmr3Int:1;
        unsigned :7;
    };
} FLAGbits;


//void T1_Init()
//{
// T1CON = 0x8d; // external source, 1:1, enabled
// PIE1bits.TMR1IE = 1; // tmr1 int enabled
// IPR1bits.TMR1IP = 1; // tmr1 int hi priority
//}


void T3_Init()
{
    T3CON = 0x30; // 1:8 = 262mS int
    IPR2bits.TMR3IP = 1; // tmr1 hi priority
    PIE2bits.TMR3IE = 1; // tmr1 int enabled
}


void RTC_Init()
{
    //Dumbest thing ever! This sequence needs to be performed to set the
    //rtc write enable bit. Won't work with inline assembler or anything else
    //I tried. Code is C version of what is listed in the data sheet for the
    //under section 17.2.7 Write Lock.
    BSR = 0x0f;
    EECON2 = 0x55;
    EECON2 = 0xaa;
    RTCCFG = 0x20;
   
    //Set date/time to Oct. 12, 2014 @ 9:45:30 AM - not sure if this is necessary
    RTCCFGbits.RTCPTR0 = 1;
    RTCCFGbits.RTCPTR1 = 1;
    RTCVALL = 0x14; // year = 14
    RTCVALH = 0; // automatic decrement to ptr = 2
    RTCVALL = 0x12; // day = 12
    RTCVALH = 0x10; // month = 10 - automatic decrement ptr to 1
    RTCVALL = 0x09; // hrs = 9
    RTCVALH = 0x00; // weekday = sunday - automatic decrement ptr to 0
    RTCVALL = 0x30; // sec = 30
    RTCVALH = 0x45; // min = 45

    RTCCFGbits.RTCOE = 1; // rtc output enabled
    PADCFG1 = 0x02;
    RTCCFGbits.RTCEN = 1; // rtc enabled
}


void main(void)
{
    OSCCON = 0x70; // Internal 8MHz
    //OSCTUNE = 0x40; // PLL enabled
   
    RCONbits.IPEN = 1; // int priority enabled
    INTCONbits.GIE = 1; // global ints enabled
    INTCONbits.PEIE = 1; // peripheral ints enabled
   
    ANCON0 = 0xff; // all digital
    ANCON1 = 0x0f;
   
    LATCbits.LATC3 = 0; // C3 low
    TRISCbits.TRISC3 = 0; // C3 output

    T3_Init();
    T3CONbits.TMR3ON = ON;
   
    RTC_Init();
   
    while(1)
    {
        if(FLAGbits.tmr3Int)
        {
            FLAGbits.tmr3Int = 0;
            
            if(LATCbits.LC3) LATCbits.LC3 = 0; // toggle C3
            else LATCbits.LC3 = 1;
        }
    }
    return;
}



/************************High priority ISR ********************************/
void interrupt high_priority high_isr (void)
{
    //isr for high priority interrupts goes here
    if(PIR2bits.TMR3IF) // tmr3 interrupt
    {
        PIR2bits.TMR3IF = 0;
        FLAGbits.tmr3Int = 1;
    }
   
    if(PIR1bits.TMR1IF) // tmr1 interrupt - 1 second
    {
        PIR1bits.TMR1IF = 0;
        if(LATCbits.LATC4) LATCbits.LATC4 = 0;
        else LATCbits.LATC4 = 1;
    }
   
// if(PIR3bits.RTCCIF)
// {
// PIR3bits.RTCCIF = 0;
// if(LATCbits.LATC4) LATCbits.LATC4 = 0;
// else LATCbits.LATC4 = 1;
// }
}

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