Forum: Mikrocontroller und Digitale Elektronik PIC18F87k22 RTCC


PIC18F87k22 RTCC
von Jan (Gast)

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Hallo Zusammen

Ich möchte bei meinem Projekt mit dem PIC18F87k22 den RTCC (REAL-TIME 
CLOCK AND CALENDAR) verwenden. Ich habe bereits vieles versucht, jedoch 
bis jetzt keinen Erfolg gehabt.
Ich möchte mit dem RTCC jede Minute einen „Alarm“ am RTCC Pin (RG4). Ich 
möchte den internen Clock verwenden.
Die Konfiguration funktioniert so derzeit nicht und am RTCC Pin liegt 
dauernd eine 0 an.
Kann mir Jemand helfen und sagen was ich falsch mache?

Hier mein bisheriger Code:

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/***  Include and Header files   ******************************************************************************/

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  #include <xc.h>                 //by Microchip

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    #include <p18f87K22.h>      //by Microchip

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/***  Configuration PIC   *********************************************************************************/

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// PIC18F87K22 Configuration Bit Settings

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// Use project enums instead of #define for ON and OFF.

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// PIC18F87K22 Configuration Bit Settings

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// 'C' source line config statements

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// #pragma config statements should precede project file includes.

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// Use project enums instead of #define for ON and OFF.

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// CONFIG1L

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#pragma config RETEN = OFF      // VREG Sleep Enable bit (Disabled - Controlled by SRETEN bit)

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#pragma config INTOSCSEL = HIGH // LF-INTOSC Low-power Enable bit (LF-INTOSC in High-power mode during Sleep)

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#pragma config SOSCSEL = HIGH   // SOSC Power Selection and mode Configuration bits (High Power SOSC circuit selected)

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#pragma config XINST = OFF      // Extended Instruction Set (Disabled)

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// CONFIG1H

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#pragma config FOSC = INTIO2    // Oscillator (Internal RC oscillator)

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#pragma config PLLCFG = ON      // PLL x4 Enable bit (Enabled)

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#pragma config FCMEN = OFF      // Fail-Safe Clock Monitor (Disabled)

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#pragma config IESO = OFF       // Internal External Oscillator Switch Over Mode (Disabled)

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// CONFIG2L

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#pragma config PWRTEN = OFF     // Power Up Timer (Disabled)

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#pragma config BOREN = SBORDIS  // Brown Out Detect (Enabled in hardware, SBOREN disabled)

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#pragma config BORV = 3         // Brown-out Reset Voltage bits (1.8V)

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#pragma config BORPWR = ZPBORMV // BORMV Power level (ZPBORMV instead of BORMV is selected)

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// CONFIG2H

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#pragma config WDTEN = SWDTDIS  // Watchdog Timer (WDT enabled in hardware; SWDTEN bit disabled)

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#pragma config WDTPS = 1048576  // Watchdog Postscaler (1:1048576)

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// CONFIG3L

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#pragma config RTCOSC = 0       // RTCC Clock Select (RTCC uses SOSC)

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#pragma config EASHFT = ON      // External Address Shift bit (Address Shifting enabled)

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#pragma config ABW = MM         // Address Bus Width Select bits (8-bit address bus)

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#pragma config BW = 16          // Data Bus Width (16-bit external bus mode)

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#pragma config WAIT = OFF       // External Bus Wait (Disabled)

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// CONFIG3H

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#pragma config CCP2MX = PORTC   // CCP2 Mux (RC1)

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#pragma config ECCPMX = PORTE   // ECCP Mux (Enhanced CCP1/3 [P1B/P1C/P3B/P3C] muxed with RE6/RE5/RE4/RE3)

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#pragma config MSSPMSK = MSK7   // MSSP address masking (7 Bit address masking mode)

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#pragma config MCLRE = ON       // Master Clear Enable (MCLR Enabled, RG5 Disabled)

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// CONFIG4L

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#pragma config STVREN = ON      // Stack Overflow Reset (Enabled)

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#pragma config BBSIZ = BB2K     // Boot Block Size (2K word Boot Block size)

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// CONFIG5L

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#pragma config CP0 = OFF        // Code Protect 00800-03FFF (Disabled)

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#pragma config CP1 = OFF        // Code Protect 04000-07FFF (Disabled)

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#pragma config CP2 = OFF        // Code Protect 08000-0BFFF (Disabled)

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#pragma config CP3 = OFF        // Code Protect 0C000-0FFFF (Disabled)

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#pragma config CP4 = OFF        // Code Protect 10000-13FFF (Disabled)

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#pragma config CP5 = OFF        // Code Protect 14000-17FFF (Disabled)

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#pragma config CP6 = OFF        // Code Protect 18000-1BFFF (Disabled)

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#pragma config CP7 = OFF        // Code Protect 1C000-1FFFF (Disabled)

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// CONFIG5H

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#pragma config CPB = OFF        // Code Protect Boot (Disabled)

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#pragma config CPD = OFF        // Data EE Read Protect (Disabled)

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// CONFIG6L

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#pragma config WRT0 = OFF       // Table Write Protect 00800-03FFF (Disabled)

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#pragma config WRT1 = OFF       // Table Write Protect 04000-07FFF (Disabled)

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#pragma config WRT2 = OFF       // Table Write Protect 08000-0BFFF (Disabled)

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#pragma config WRT3 = OFF       // Table Write Protect 0C000-0FFFF (Disabled)

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#pragma config WRT4 = OFF       // Table Write Protect 10000-13FFF (Disabled)

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#pragma config WRT5 = OFF       // Table Write Protect 14000-17FFF (Disabled)

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#pragma config WRT6 = OFF       // Table Write Protect 18000-1BFFF (Disabled)

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#pragma config WRT7 = OFF       // Table Write Protect 1C000-1FFFF (Disabled)

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// CONFIG6H

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#pragma config WRTC = OFF       // Config. Write Protect (Disabled)

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#pragma config WRTB = OFF       // Table Write Protect Boot (Disabled)

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#pragma config WRTD = OFF       // Data EE Write Protect (Disabled)

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// CONFIG7L

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#pragma config EBRT0 = OFF      // Table Read Protect 00800-03FFF (Disabled)

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#pragma config EBRT1 = OFF      // Table Read Protect 04000-07FFF (Disabled)

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#pragma config EBRT2 = OFF      // Table Read Protect 08000-0BFFF (Disabled)

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#pragma config EBRT3 = OFF      // Table Read Protect 0C000-0FFFF (Disabled)

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#pragma config EBRT4 = OFF      // Table Read Protect 10000-13FFF (Disabled)

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#pragma config EBRT5 = OFF      // Table Read Protect 14000-17FFF (Disabled)

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#pragma config EBRT6 = OFF      // Table Read Protect 18000-1BFFF (Disabled)

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#pragma config EBRT7 = OFF      // Table Read Protect 1C000-1FFFF (Disabled)

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// CONFIG7H

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#pragma config EBRTB = OFF      // Table Read Protect Boot (Disabled)

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/***  VARIABLES   *********************************************************************************/

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        #define _XTAL_FREQ      4000000         //Fosc  frequency for _delay() library (4MHz)

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/***  PRIVATE PROTOTYPES   ***********************************************************************/

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void Init(void);      //Aufruf der Initialisierung vor Ausführung des main()

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//******************************************************************************

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//      MAIN PROGRAM

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//******************************************************************************

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void main(void)

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{

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  Init();        //Initialisierung

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  while(1)      //Endlosschleife

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  {

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  }

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}//end main();

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//*********************************************************************************************

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//      INITIALISIERUNG PIC

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//*********************************************************************************************

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void Init(void)

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{

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/***  SET VALUES OF VARIABLES   ***********************************************************/

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/***  Set Inputs, Outputs   ***************************************************************/

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//*//   All PINs with an * are free usable I/O PINs  //*//

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    //PORTA A0-A5

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  TRISAbits.TRISA0 = 1;    //set RA0 as INPUT    used for Taster 1

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  TRISAbits.TRISA1 = 1;    //set RA1 as INPUT    used for Taster 2

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  TRISAbits.TRISA2 = 1;    //set RA2 as INPUT    used for Taster 3

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  TRISAbits.TRISA3 = 1;    //set RA3 as INPUT    used for Taster 4

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  TRISAbits.TRISA4 = 1;    //set RA4 as INPUT    used for Taster 5

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    TRISAbits.TRISA5 = 1;    //set RA5 as INPUT    used for Schalter 1

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    //RA6 see the OSC2/CLKO/RA6 pin.

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    //RA7 see the OSC1/CLKI/RA7 pin.

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  //PORTB B0-B7

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  TRISBbits.TRISB0 = 0;    //set RB0 as OUTPUT    used as BT-mode

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  TRISBbits.TRISB6 = 1;    //set RB6 as INPUT    used as PGC

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  TRISBbits.TRISB7 = 1;    //set RB7 as INPUT    used as PGD

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  //PORTC C0-C7

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    TRISCbits.TRISC6 = 0;    //set RC6 as OUTPUT    used as BT-UART TX

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  TRISCbits.TRISC7 = 1;    //set RC7 as INPUT    used as BT-UART RX

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    //PORTG G0-G4

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  TRISGbits.TRISG4 = 0;    //set RG4 as OUTPUT    used for RTCC Pin

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  //RG5 used as MCLR

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    RTCWREN = 1;                //RTCC Value Registers Write Enable bit

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                                //RTCVALH and RTCVALL registers can be written to by the user

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    RTCEN = 1;                  //RTCC module is enabled

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    RTCOE = 1;                  //RTCC clock output is enabled

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    AMASK3 = 0;                 //Alarm Mask Configuration bits

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    AMASK2 = 0;                 //set to: Every 10 seconds

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    AMASK1 = 1;

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    AMASK0 = 0;

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    ARPT7 = 0;                  // ALARM REPEAT REGISTER

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    ARPT6 = 0;

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    ARPT5 = 0;

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    ARPT4 = 1;

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    ARPT3 = 1;

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    ARPT2 = 1;

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    ARPT1 = 1;

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    ARPT0 = 1;

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}//end Initialization();

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/***  end of file  *********************************************************************************************/


Vielen Dank für eure Hilfe!

  


  



  

  
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