PIC18 Sleep Mode - LOW Power Modus

#include <p18cxxx.h>

#include <usart.h>

#include <stdio.h>

#include <stdlib.h>

#include "delays.h"

#include <string.h>

/** CONFIGURATION **************************************************/

#pragma config PLLSEL   = PLL3X     // 3X PLL multiplier selected

#pragma config CFGPLLEN = OFF       // PLL turned on during execution

#pragma config CPUDIV   = NOCLKDIV  // 1:1 mode (for 48MHz CPU)

#pragma config LS48MHZ  = SYS48X8   // Clock div / 8 in Low Speed USB mode

#pragma config FOSC     = INTOSCIO  // HFINTOSC selected at powerup, no clock out

#pragma config PCLKEN   = OFF       // Primary oscillator driver

#pragma config FCMEN    = OFF       // Fail safe clock monitor

#pragma config IESO     = OFF       // Internal/external switchover (two speed startup)

#pragma config nPWRTEN  = OFF       // Power up timer

#pragma config BOREN    = SBORDIS   // BOR enabled

#pragma config nLPBOR   = OFF        // Low Power BOR

//#pragma config WDTEN    = SWON     // Watchdog Timer controlled by SWDTEN

#pragma config WDTEN    = OFF      // Watchdog Timer controlled by SWDTEN

#pragma config WDTPS    = 32768     // WDT postscalar

#pragma config PBADEN   = ON       // Port B Digital/Analog Powerup Behavior

#pragma config SDOMX    = RB3       // SDO function location

#pragma config LVP      = OFF       // Low voltage programming

#pragma config MCLRE    = ON        // MCLR function enabled (RE3 disabled)

#pragma config STVREN   = ON        // Stack overflow reset

#pragma config XINST    = OFF       // Extended instruction set

// 16 MHz

#define FOSC        16000000 // in a global header

#define BAUDRATE    115200   // ""

#define SPBRG_VAL (((FOSC/BAUDRATE)+2)/4)-1     // BRG16=1, BGH=1 !

/** I/O pin definitions ********************************************/

#define INPUT_PIN 1

#define OUTPUT_PIN 0

void __init(void)

{

    OSCCONbits.IRCF = 0b111;                                // 16MHz

    OSCCONbits.IDLEN = 0;                                   // Enter Sleep Mode on instruction

    baud1USART(BAUD_IDLE_RX_PIN_STATE_HIGH &

                 BAUD_IDLE_TX_PIN_STATE_HIGH &

                 BAUD_16_BIT_RATE &

                 BAUD_WAKEUP_ON &

                 BAUD_AUTO_OFF);

    Open1USART( USART_TX_INT_OFF & USART_RX_INT_OFF &

                USART_ASYNCH_MODE & USART_EIGHT_BIT &

                USART_CONT_RX &

                USART_BRGH_HIGH & USART_ADDEN_OFF,

                SPBRG_VAL );

void UserInit(void)

{

    __init();                                   // UART INIT

    // setze unbenutzte Eingänge auf Output und definierten Zustand (hier: 0)

    TRISAbits.TRISA1 = OUTPUT_PIN;

    TRISAbits.TRISA2 = OUTPUT_PIN;

    TRISAbits.TRISA3 = OUTPUT_PIN;

    LATAbits.LATA1 = 0;

    LATAbits.LATA2 = 0;

    LATAbits.LATA3 = 0;

    TRISCbits.TRISC0 = OUTPUT_PIN;

    TRISCbits.TRISC4 = OUTPUT_PIN;

    TRISCbits.TRISC5 = OUTPUT_PIN;

    LATCbits.LATC0 = 0;

    LATCbits.LATC4 = 0;

    LATCbits.LATC5 = 0;

}

}

void InitializeSystem(void)

{

    ANSELA = 0x00;                                                  // Set All Pins to digital

    ANSELB = 0x00;

    ANSELC = 0x00;

    UserInit();

void main(void) {

    InitializeSystem();

   Sleep();                          // send Pic into Sleep

    while(1)

    {

    }

}

}