Setting a delay in XC8 C compiler?

[treez]

Hello.
I am doing c (microchip free xc8 compiler) in mplab.x for pic18f65k22.
I put "__delay_ms(100)" for a 100ms delay but the compiler doesn't like it.

I followed the manual but it doesn't work.
Do you know how to do this 100ms delay?

 

[horace1]

Hello.
I am doing c (microchip free xc8 compiler) in mplab.x for pic18f65k22.
I put "__delay_ms(100)" for a 100ms delay but the compiler doesn't like it.

I followed the manual but it doesn't work.
Do you know how to do this 100ms delay?

my version V1.31 of XC8 compiles it OK

 

[FvM]

but the compiler doesn't like it

Means the compiler errors message is "I DON'T LIKE IT". Really?

You might have forgotten to define the symbol _XTAL_FREQ.

 

[treez]

Thanks, I searched the entire manual for how to use the _XTAL_FREQ pre-processor command, but it doesn't tell.
So I then tried to set the internal oscillator of pic18f65k22 to 1mhz by putting "OSCCON = 0x36" but it wont compile.

Any ideas on how to set the frequency of the internal osc of pic18f65k22 to 1mhz?...then I can start getting the delay sorted.

BTW , here is my code so far....

// * File:   3 CHANNEL UV LED CONTROL SOFTWARE
//THIS SOFTWARE IS FOR THE "3 Channel UV LED Driver _D" PCB, and the
//"3 Channel UV LED Driver _E" PCB

//Reset and clear are not implemented, the reasons for them is unknown.

//'Updated_550587' PCB
//;WE ARE TRUNCATING THE ADC REGISTER SO JUST USE UPPER 8 BITS
//This code assumes LED MCPCB thermistors with B=3970 and 10K @ 25degC
//Makes sure the current level is never changed more than about 4 times
//per second.

//;DEFINE INPUTS FROM DIPSWITCH
//;Note that the new board has pullups on the dipswitch,
//;whereas 550587 PCB had pull downs, thus logic is reversed.
//; XXX DIPSWITCH POLARITY:- XXX
//;DIP 1...ON = EXTERNAL CONNECTOR CONTROL
//;DIP 2...ON = LOGIC HIGH (note 'ON' gives a low input)
//;DIP 3...ON = LOGIC HIGH
//;DIP 4...OFF = 10V is for max current
//;DIP 5...OFF = 80degC, ON = 90degC
//;DIP 6... UNUSED
//;DIP 7... UNUSED
//;DIP 8...ON = NO FAN FITTED, OFF = FAN FITTED
//
//; XXX  EXTERNAL CONTROL CONNECTOR POLARITY:- XXX
//;CLEAR = ACTIVE HIGH
//;RESET = ACTIVE HIGH
//;CH1...HIGH = ON, LOW = OFF
//;CH2...HIGH = ON, LOW = OFF
//;CH3...HIGH = ON, LOW = OFF
//
//;List of input ports:
//; ************** DIPSWITCH INPUTS:
//;DIP1 = RB0
//;DIP2 = RB1
//;DIP3 = RB2
//;DIP4 = RB3
//;DIP5 = RB4
//;DIP6 = RB5
//;DIP7 = RC5
//;DIP8 = RE6
//
//;************* External connector INPUTS:
//;clear =       RC1
//;ch3 on/off =  RC7
//;RESET =       RD5
//;CH1 on/off =  RD6
//;ch2 on/off =  RD7
//
//;Other inputs (DIGITAL I/O
//;Fan tacho = RG2
//;mclr =      RG5
//
//;Inputs that are ADC inputs:
//;RA2 = AN2
//;RA3 = AN3
//;RA5 = AN4 ADCON0=0x10
//;RF1 = AN6 ADCON0=0x18
//;RF2 = AN7
//;RF3 = AN8
//;RF4 = AN9
//;RF5 = AN10 ADCON0=0x28
//;RF6 = AN11 ADCON0=0x2C
//;RF7 = AN5  ADCON0=0x1C
//
//;**********ADC INPUTS:
//;AN0 = NC
//;AN1 = NC
//;AN2 = VREF- (0V)
//;AN3 = VREF+ (3V)
//;AN4 = Therm ch1
//;AN5 = I_CH1
//;AN6 = 0-10V control input
//;AN7 = PCB thermistor
//;AN8 = I_ch2
//;AN9 = I_ch3
//;AN10 = Therm-ch2
//;AN11 = Therm-ch3
//
//;OOOOOOOOOOO LIST OF OUTPUTS:
//;Trip =          RA4
//;Indicator LED = RC2
//;MCP4013_CS =    RC3
//;MCP4013_UD =    RC4
//;Shutdown-Ch2 =  RE0
//;Shutdown-Ch1 =  RE1
//;Fancon PWM =    RE4
//;Shutdown-Ch3 =  RG0
//
//;NCNCNCNCNCNCNCNCNC LIST OF NON CONNECTED PINS:
//;RA0
//;RA1
//;RA6
//;RA7
//;    RB6  = PGC
//;    RB7  = PGD
//;RC0
//;RC6
//;    RD0
//;    RD1
//;    RD2
//;    RD3
//;    RD4
//;RE2
//;RE3
//;RE5
//;RE7
//;    RG1
//;    RG3
//;    RG4/*

#include <xc.h>

// CONFIG1L
#pragma config RETEN = OFF      // VREG Sleep Enable bit (Disabled - Controlled by SRETEN bit)
#pragma config INTOSCSEL = HIGH // LF-INTOSC Low-power Enable bit (LF-INTOSC in High-power mode during Sleep)
#pragma config SOSCSEL = HIGH   // SOSC Power Selection and mode Configuration bits (High Power SOSC circuit selected)
#pragma config XINST = ON       // Extended Instruction Set (Enabled)

// CONFIG1H
#pragma config FOSC = INTIO2    // Oscillator (Internal RC oscillator)
#pragma config PLLCFG = OFF     // PLL x4 Enable bit (Disabled)
#pragma config FCMEN = OFF      // Fail-Safe Clock Monitor (Disabled)
#pragma config IESO = OFF       // Internal External Oscillator Switch Over Mode (Disabled)

// CONFIG2L
#pragma config PWRTEN = OFF     // Power Up Timer (Disabled)
#pragma config BOREN = NOSLP    // Brown Out Detect (Enabled while active, disabled in SLEEP, SBOREN disabled)
#pragma config BORV = 0         // Brown-out Reset Voltage bits (3.0V)
#pragma config BORPWR = ZPBORMV // BORMV Power level (ZPBORMV instead of BORMV is selected)

// CONFIG2H
#pragma config WDTEN = OFF      // Watchdog Timer (WDT disabled in hardware; SWDTEN bit disabled)
#pragma config WDTPS = 1048576  // Watchdog Postscaler (1:1048576)

// CONFIG3L
#pragma config RTCOSC = INTOSCREF// RTCC Clock Select (RTCC uses INTRC)

// CONFIG3H
#pragma config CCP2MX = PORTC   // CCP2 Mux (RC1)
#pragma config MSSPMSK = MSK7   // MSSP address masking (7 Bit address masking mode)
#pragma config MCLRE = OFF      // Master Clear Enable (MCLR Disabled, RG5 Enabled)

// CONFIG4L
#pragma config STVREN = ON      // Stack Overflow Reset (Enabled)
#pragma config BBSIZ = BB2K     // Boot Block Size (2K word Boot Block size)

// CONFIG5L
#pragma config CP0 = OFF        // Code Protect 00800-01FFF (Disabled)
#pragma config CP1 = OFF        // Code Protect 02000-03FFF (Disabled)
#pragma config CP2 = OFF        // Code Protect 04000-05FFF (Disabled)
#pragma config CP3 = OFF        // Code Protect 06000-07FFF (Disabled)

// CONFIG5H
#pragma config CPB = OFF        // Code Protect Boot (Disabled)
#pragma config CPD = OFF        // Data EE Read Protect (Disabled)

// CONFIG6L
#pragma config WRT0 = OFF       // Table Write Protect 00800-017FF (Disabled)
#pragma config WRT1 = OFF       // Table Write Protect 01800-03FFF (Disabled)
#pragma config WRT2 = OFF       // Table Write Protect 04000-05FFF (Disabled)
#pragma config WRT3 = OFF       // Table Write Protect 06000-07FFF (Disabled)

// CONFIG6H
#pragma config WRTC = OFF       // Config. Write Protect (Disabled)
#pragma config WRTB = OFF       // Table Write Protect Boot (Disabled)
#pragma config WRTD = OFF       // Data EE Write Protect (Disabled)

// CONFIG7L
#pragma config EBRT0 = OFF      // Table Read Protect 00800-017FF (Disabled)
#pragma config EBRT1 = OFF      // Table Read Protect 01800-03FFF (Disabled)
#pragma config EBRT2 = OFF      // Table Read Protect 04000-05FFF (Disabled)
#pragma config EBRT3 = OFF      // Table Read Protect 06000-07FFF (Disabled)

// CONFIG7H
#pragma config EBRTB = OFF      // Table Read Protect Boot (Disabled)

#include <stdint.h>

void    set_ana_dig_ports(void);
void    disable_interrupts(void);
void    disable_pullups(void);
void    disable_opendrain(void);
void    disable_comparators(void);
void    setup_adc(void);
void    setup_ports(void);
void    NC_pins_low(void);  //make all NC pins low.
void    read_dips(void);
void    set_initials_int(void);
void    set_initials_ext(void);
void    read_extreg5(void);
void    pre_internal(void);
void    pre_external(void);
void    set_initials_int(void); //dip/curr
void    set_initials_ext(void); //dip/curr
void    externalmode(void);
void    internalmode(void);
void    set_current_int(void);
void    set_current_ext_AH(void);
void    set_current_ext_AL(void);
void    setcurrent_ext(void);
void    top_mcp4013(void);
void    int_change(void);
void    ext_change(void);
void    change_current_int(void);
void    change_current_ext(void);
void    read_temps(void);
void    read_analog(void);

//CONFIGS

/*DEFINE OUTPUTS*/
#define ch1out      LATEbits.LATE1
#define ch2out      LATEbits.LATE0
#define ch3out      LATGbits.LATG0
#define ind_ledout  LATCbits.LATC2
#define fanconout   LATEbits.LATE4
#define tripout     LATAbits.LATA4
#define mcp4013_csout  LATCbits.LATC3
#define mcp4013_udout  LATCbits.LATC4
//DIPSWITCH INPUTS
#define dip1pin     PORTBbits.RB0
#define dip2pin     PORTBbits.RB1
#define dip3pin     PORTBbits.RB2
#define dip4pin     PORTBbits.RB3
#define dip5pin     PORTBbits.RB4
#define dip6pin     PORTBbits.RB5
#define dip7pin     PORTCbits.RC5
#define dip8pin     PORTEbits.RE6

//DEFINE INPUTS FROM EXT. CONNECTOR
#define resetext       PORTDbits.RD5
#define ch1ext    PORTDbits.RD6
#define ch2ext    PORTDbits.RD7
#define ch3ext    PORTCbits.RC7
#define clearext       PORTCbits.RC1

/* TURN LEDS ON AND OFF*/
#define ON1    LATEbits.LATE1 = 1;  /*Turn on chan1*/
#define OFF1   LATEbits.LATE1 = 0;  /*Turn off chan1*/
#define ON2    LATEbits.LATE0 = 1; /*Turn on chan2*/
#define OFF2   LATEbits.LATE0 = 0; /*Turn off chan2*/
#define ON3    LATGbits.LATG0 = 1; /*Turn on chan2*/
#define OFF3   LATGbits.LATG0 = 0;  /*Turn off chan2*/
#define FANON  LATEbits.LATE2 = 1;   /*Turn fan on*/
#define FANOFF LATEbits.LATE2 = 0;  /*Turn fan off*/




/*DEFINE INPUTS FROM DIPSWITCH*/
/*Note that the new board has pullups on the dipswitch,*/
/*whereas 550587 PCB had pull downs, thus logic is reversed.*/
uint8_t    dipsw1;
uint8_t    dipsw2;
uint8_t    dipsw3;
uint8_t    dipsw4;
uint8_t    dipsw5;
uint8_t    dipsw8;
uint8_t    dip8;   //bit0=dip1...
uint8_t    dip8_init;
uint8_t    extreg5;    //bit0=reset,bit1=ch1...etc, to bit4=clear
                            //external connector pins
uint8_t    extreg5_init;
uint8_t    extp3;    //reset
uint8_t    extp4;    //ch1
uint8_t    extp5;    //ch2
uint8_t    extp6;    //ch3
uint8_t    extp9;    //an in
uint8_t    extp10;   //clear
uint8_t    extp11;   //TRIP OUT
uint8_t    temp1;
uint8_t    temp2;
uint8_t    temp3;
uint8_t    tempb;
uint8_t    ana8;           //holds ADRESH
uint8_t    ana8_init;
uint8_t    max_led_temp;
uint8_t    max_pcb_temp;
uint8_t    board_90c;      //max board temp value
uint8_t    board_80c;
uint8_t    led_90c;
uint8_t    led_80c;        //max led temp value
uint8_t    ledthermopen;   //trip value when thermistor open
uint8_t    pcbthermopen;
uint8_t    currentint;        //represents 0A, 1.76A, 2.64A, 3.52A
                                //bit0=0,bit1=1a76...etc
uint8_t    iset_mcp4013;   //number of down pulses needed to get current.
uint8_t    mcp4013pulses;
uint8_t    i;
uint8_t    just_lsbmsb_init;
uint8_t    just_lsbmsb;
uint8_t    extreg5;
uint8_t    extp3;
uint8_t    extp4;
uint8_t    extp5;
uint8_t    extp6;
uint8_t    extp10;
uint8_t     triptempled;
uint8_t     triptempboard;
uint8_t     tripledthermopen;
uint8_t    ch1temp;
uint8_t    ch2temp;
uint8_t    ch3temp;
uint8_t    boardtemp;
uint8_t    analog_in;
uint8_t    analog_in_init;

void main(void) {
   
    disable_interrupts();
    disable_pullups();
    disable_opendrain();
    disable_comparators();
    setup_adc();
    setup_ports();
    NC_pins_low();  //make all NC pins low.

    here:
    while(1){
    OFF1;
    OFF2;
    OFF3;
    FANOFF;

    read_dips();
    read_temps();
    if (currentint == 1) {goto  here;}
    if (boardtemp > triptempboard) {goto    here;}

    here_1:
    if (dipsw1)  pre_internal();  //OFF (actually high) = INTERNAL MODE
    if (currentint == 1) {goto  here;}
    if (dipsw1)  internalmode();    //*************************
    if (currentint == 1) {goto  here;}
    if (boardtemp > triptempboard) {goto    here;}
    if (dipsw1) {goto    here_1;}

    if (!dipsw1) pre_external();
    if (currentint == 1) {goto  here;}
    if (!dipsw1) externalmode();    //**************************
    if (currentint == 1) {goto  here;}
    if (boardtemp > triptempboard) {goto    here;}
    goto    here_1;
    }
    return;
}
void    set_ana_dig_ports(void){
    ANCON0 = 0xFC;
    ANCON1 = 0x0F;
    ANCON2 = 0x00;
    return;
}
void    disable_interrupts(void) {
    INTCON =0x00;
    INTCON2 =0x80;
    INTCON3 = 0x00;
    PIE1 = 0x00;
    PIE2 = 0x00;
    PIE3 = 0x00;
    PIE4 = 0x00;
    PIE5 = 0x00;
    PIE6 = 0x00;
    return;
}
void    disable_pullups(void){
    PADCFG1 = 0;
    return;
}
void    disable_opendrain(void){
    ODCON1 = 0;
    ODCON2 = 0;
    ODCON3 = 0;
    return;
}
void    disable_comparators(void){
    CM1CON = 0;
    CM2CON = 0;
    CM3CON = 0;
    return;
}
void    setup_adc(void){
    ADCON0 = 0;
    ADCON1 = 0x10;  //VREF
    ADCON2 = 0x3E;  // Left jus/Tacq
    return;
}
void    setup_ports(void){
    TRISA =   0x2C;
    TRISB   = 0x3F;
    TRISC   = 0xA2;
    TRISD   = 0xD0;
    TRISE   = 0x40;
    TRISF   = 0xFE;
    TRISG   = 0x24;
    return;
}
void    NC_pins_low(void){
//Make all NC pins low (they are already made to outputs)
//They are outputs for noise immunity reasons.
    LATAbits.LATA0 = 0;
    LATAbits.LATA1 = 0;
    LATAbits.LATA6 = 0;
    LATAbits.LATA7 = 0;

    LATBbits.LATB6  = 0;    //PGC
    LATBbits.LATB7  = 0;    //PGD

    LATCbits.LATC0 = 0;
    LATCbits.LATC6 = 0;

    LATDbits.LATD0 = 0;
    LATDbits.LATD1 = 0;
    LATDbits.LATD2 = 0;
    LATDbits.LATD3 = 0;
    LATDbits.LATD4 = 0;

    LATEbits.LATE2 = 0;
    LATEbits.LATE3 = 0;
    LATEbits.LATE5 = 0;
    LATEbits.LATE7 = 0;

    LATGbits.LATG1 = 0;
    LATGbits.LATG3 = 0;
    LATGbits.LATG4 = 0;
    return;
}
void    read_extreg5(void){
    //read just the five digital inputs from ext conn.
    //put them in extreg5;
    extreg5 = 0x00;    //first 5 bits of ext5 holds ext conn res,1,2,3,cl
    if (resetext) {extp3 = 0x01; extreg5 = extreg5 || 0x01;}
    else    {extp3 = 0x00;}
    if (ch1ext) {extp4 = 0x01; extreg5 = extreg5 || 0x02;}
    else    {extp4 = 0x00;}
    if (ch2ext) {extp5 = 0x01; extreg5 = extreg5 || 0x04;}
    else    {extp5 = 0x00;}
    if (ch3ext) {extp6 = 0x01; extreg5 = extreg5 || 0x08;}
    else    {extp6 = 0x00;}
    if (clearext) {extp10 = 0x01; extreg5 = extreg5 || 0x10;}
    else    {extp10 = 0x00;}
    return;
}
void    read_dips(void){
    //dip8 holds the state of dipswitch in correcponding bit places.
    dip8 = 0x00;
    if (dip1pin) {dipsw1 = 0x01; dip8 = dip8 || 0x01;}
    else    {dipsw1 = 0x00;}
    if (dip2pin) {dipsw2 = 0x01; dip8 = dip8 || 0x02;}
    else    {dipsw2 = 0x00;}
    if (dip3pin) {dipsw3 = 0x01; dip8 = dip8 || 0x04;}
    else    {dipsw3 = 0x00;}
    if (dip4pin) {dipsw4 = 0x01; dip8 = dip8 || 0x08;}
    else    {dipsw4 = 0x00;}
    if (dip5pin) {dipsw5 = 0x01; dip8 = dip8 || 0x10;}
    else    {dipsw5 = 0x00;}
    if (dip8pin) {dipsw8 = 0x01; dip8 = dip8 || 0x80;}
    else    {dipsw8 = 0x00;}
    if (!dipsw2 && !dipsw3) {currentint = 4;}   //3.52A
    if (dipsw2 && !dipsw3)  {currentint = 3;}   //2.64A
    if (!dipsw2 && dipsw3)  {currentint = 2;}   //1.76A
    if (dipsw2 && dipsw3)   {currentint = 1;}   //SHUTDOWN (0A)

    if (!dipsw5) {triptempled = 200;}  //90degc (Thermistor)
    if (dipsw5)  {triptempled = 168;}  //80degc (Thermistor)
    triptempboard = 184; //90degC = board trip temperature. MCP9701A
    tripledthermopen = 10;  //For when LED thermistor goes open.
    return;
}

void    read_analog(void){
    ADCON0 = 0x19;  //turn on ADC module FOR AN6 (0-10V)
    ADCON0 = 0x1B;  //START ADC CONVERSION
    while(GODONE) {;}   //Wait till conversion complete.
    ana8 = ADRESH;
    analog_in = ana8;
    ADCON0 = 0x18;  //turn off ADC MODULE.
    return;
}

void    read_temps(void){
    ADCON0 = 0x05;  //turn on ADC module FOR AN4 (therm ch1)
    ADCON0 = 0x07;  //START ADC CONVERSION
    while(GODONE) {;}   //Wait till conversion complete.
    ana8 = ADRESH;
    ch1temp = ana8;
    ADCON0 = 0x04;  //turn off ADC MODULE.

    ADCON0 = 0x29;  //turn on ADC module FOR AN10 (therm ch2)
    ADCON0 = 0x2B;  //START ADC CONVERSION
    while(GODONE) {;}   //Wait till conversion complete.
    ana8 = ADRESH;
    ch2temp = ana8;
    ADCON0 = 0x28;  //turn off ADC MODULE.

    ADCON0 = 0x2D;  //turn on ADC module FOR AN11 (therm ch3)
    ADCON0 = 0x2F;  //START ADC CONVERSION
    while(GODONE) {;}   //Wait till conversion complete.
    ana8 = ADRESH;
    ch3temp = ana8;
    ADCON0 = 0x2C;  //turn off ADC MODULE.

    ADCON0 = 0x1D;  //turn on ADC module FOR AN7 (Board thermistor,MCP9701A)
    ADCON0 = 0x1F;  //START ADC CONVERSION
    while(GODONE) {;}   //Wait till conversion complete.
    ana8 = ADRESH;
    boardtemp = ana8;
    ADCON0 = 0x1C;  //turn off ADC MODULE.
    return;
}

void    set_initials_int(void){
    read_dips();
    dip8_init = dip8;                   //for comparison later
    return;
}
void    set_initials_ext(void){
    read_dips();
    dip8_init = dip8;                   //for comparison later
    read_extreg5();
    extreg5_init = extreg5;
    read_analog();       //read the 0-10v signal.
    analog_in_init = analog_in;   //0-10V signal
return;
}
void    pre_internal(void){
    set_initials_int();
    set_current_int();
    return;
    }
void    pre_external(void){
    set_initials_ext();
    if (dipsw4) {set_current_ext_AH();}
    if (!dipsw4) {set_current_ext_AL();}
    return;
    ;}
// **********************************************************
void    internalmode(void){
    FANON;
    while(1){
    //__delay_ms(100);
    read_dips();
    if (dip8 != dip8_init) {break;}
    read_temps();
    if (boardtemp > triptempboard){break;}
    if (ch1temp < triptempled) {ON1;}
    if (ch2temp < triptempled) {ON2;}
    if (ch3temp < triptempled) {ON3;}
    
    if (ch1temp >= triptempled) {OFF1;}
    if (ch2temp >= triptempled) {OFF2;}
    if (ch3temp >= triptempled) {OFF3;}
    }
return;}
void    externalmode(void) {
    FANON;
        while(1){
    //__delay_ms(100);
    read_dips();
    if (dip8 != dip8_init) {break;}
    read_extreg5();
    if (extreg5 != extreg5_init){break;}
    read_analog();
    if (analog_in != analog_in_init) {break;}
    read_temps();
    if (boardtemp > triptempboard) {break;}
    if ((extp3 == 1) && (ch1temp < triptempled )) {ON1;}
    if ((extp3 == 1) && (ch2temp < triptempled )) {ON2;}
    if ((extp3 == 1) && (ch3temp < triptempled )) {ON3;}

    if ((extp3 == 0) || (ch1temp >= triptempled)) {OFF1;}
    if ((extp3 == 0) || (ch1temp >= triptempled)) {OFF2;}
    if ((extp3 == 0) || (ch1temp >= triptempled)) {OFF3;}
        }
    return;
}
//***************************************************************
void    set_current_int(void){
    //set mcp4013 by topping the mcp4013, then decrementing
    if (currentint == 2) mcp4013pulses = 31;    //no. of downpulses.
    if (currentint == 3) mcp4013pulses = 17;
    if (currentint == 4) mcp4013pulses = 4;
    top_mcp4013();      //top out the mcp4013
    mcp4013_csout = 1;  //disable mcp4013
    mcp4013_csout = 1;
    mcp4013_udout = 0;  //ready to decrement
    mcp4013_udout = 0;
    mcp4013_csout = 0;  //enable mcp4013
    mcp4013_csout = 0;
    for (i== 0; i== mcp4013pulses; i++){
    mcp4013_udout = 1;  //pulse it to the level
    mcp4013_udout = 1;
    mcp4013_udout = 0;
    mcp4013_udout = 0;
    }
    mcp4013_csout = 1;
    mcp4013_csout = 1;  //disable mcp4013
    return;
}
void    top_mcp4013(void) {
        mcp4013_csout = 1;
        mcp4013_csout = 1;  //disable mcp4013
        mcp4013_udout = 1;  //ready to increment wiper
        mcp4013_udout = 1;
        mcp4013_csout = 0;  //enable mcp4013
        mcp4013_csout = 0;
        for(i==64;i==0;i--){
        mcp4013_udout = 0;
        mcp4013_udout = 0;
        mcp4013_udout = 1;
        mcp4013_udout = 1;
        }
        mcp4013_csout = 1;  //disable mcp4013
        mcp4013_csout = 1;
        return;
}

void    set_current_ext_AH(void){
    //This is to set the current in external mode when the 4th dipswitch
    //asks for the 0-10V signal to be "10V = Highest current"
    //["AH" stands for Active High"]
    //MCP4013pulses will here be the number of downpulses to pulse the digital
    //pot with. (starting from the top of the resistor 'chain')
    //Never go below 11 POT steps (ie, never below 0.176V -> 300mA)
    //Make max current correspond to 235bits to 255bits on the 0-10V input
    //(9.2V)

//CALCULATING NUMBER OF DOWNPULSES.
    if (currentint == 2) {
    //9 apart
    if  (analog_in >= 235)            {mcp4013pulses = 31;}
    if ((analog_in >= 225) && (analog_in <= 234)) {mcp4013pulses = 32;}
    if ((analog_in >= 215) && (analog_in <= 224)) {mcp4013pulses = 33;}
    if ((analog_in >= 205) && (analog_in <= 214)) {mcp4013pulses = 34;}
    if ((analog_in >= 195) && (analog_in <= 204)) {mcp4013pulses = 35;}
    if ((analog_in >= 185) && (analog_in <= 194)) {mcp4013pulses = 36;}
    if ((analog_in >= 175) && (analog_in <= 184)) {mcp4013pulses = 37;}
    if ((analog_in >= 165) && (analog_in <= 174)) {mcp4013pulses = 38;}
    if ((analog_in >= 155) && (analog_in <= 164)) {mcp4013pulses = 39;}
    if ((analog_in >= 145) && (analog_in <= 154)) {mcp4013pulses = 40;}
    if ((analog_in >= 135) && (analog_in <= 144)) {mcp4013pulses = 41;}
    if ((analog_in >= 125) && (analog_in <= 134)) {mcp4013pulses = 42;}
    if ((analog_in >= 115) && (analog_in <= 124)) {mcp4013pulses = 43;}
    if ((analog_in >= 105) && (analog_in <= 114)) {mcp4013pulses = 44;}
    if ((analog_in >= 95) && (analog_in <= 104))  {mcp4013pulses = 45;}
    if ((analog_in >= 85) && (analog_in <= 94))   {mcp4013pulses = 46;}
    if ((analog_in >= 75) && (analog_in <= 84))   {mcp4013pulses = 47;}
    if ((analog_in >= 65) && (analog_in <= 74))   {mcp4013pulses = 48;}
    if ((analog_in >= 55) && (analog_in <= 64))   {mcp4013pulses = 49;}
    if ((analog_in >= 45) && (analog_in <= 54))   {mcp4013pulses = 50;}
    if ((analog_in >= 35) && (analog_in <= 44))   {mcp4013pulses = 51;}
    if ((analog_in >= 25) && (analog_in <= 34))   {mcp4013pulses = 52;}
    if ((analog_in >= 0) && (analog_in <= 24))    {mcp4013pulses = 53;}
    }

    if (currentint == 3) {
     //6 apart
    if  (analog_in >= 235)            {mcp4013pulses = 17;}
    if ((analog_in >= 228) && (analog_in <= 234)) {mcp4013pulses = 18;}
    if ((analog_in >= 221) && (analog_in <= 227)) {mcp4013pulses = 19;}
    if ((analog_in >= 214) && (analog_in <= 220)) {mcp4013pulses = 20;}
    if ((analog_in >= 207) && (analog_in <= 213)) {mcp4013pulses = 21;}
    if ((analog_in >= 200) && (analog_in <= 206)) {mcp4013pulses = 22;}
    if ((analog_in >= 193) && (analog_in <= 199)) {mcp4013pulses = 23;}
    if ((analog_in >= 186) && (analog_in <= 192)) {mcp4013pulses = 24;}
    if ((analog_in >= 179) && (analog_in <= 185)) {mcp4013pulses = 25;}
    if ((analog_in >= 172) && (analog_in <= 178)) {mcp4013pulses = 26;}
    if ((analog_in >= 165) && (analog_in <= 171)) {mcp4013pulses = 27;}
    if ((analog_in >= 158) && (analog_in <= 164)) {mcp4013pulses = 28;}
    if ((analog_in >= 151) && (analog_in <= 157)) {mcp4013pulses = 29;}
    if ((analog_in >= 144) && (analog_in <= 150)) {mcp4013pulses = 30;}
    if ((analog_in >= 137) && (analog_in <= 143)) {mcp4013pulses = 31;}
    if ((analog_in >= 130) && (analog_in <= 136)) {mcp4013pulses = 32;}
    if ((analog_in >= 123) && (analog_in <= 129)) {mcp4013pulses = 33;}
    if ((analog_in >= 116) && (analog_in <= 122)) {mcp4013pulses = 34;}
    if ((analog_in >= 109) && (analog_in <= 115)) {mcp4013pulses = 35;}
    if ((analog_in >= 102) && (analog_in <= 108)) {mcp4013pulses = 36;}
    if ((analog_in >= 95) && (analog_in <= 101))  {mcp4013pulses = 37;}
    if ((analog_in >= 88) && (analog_in <= 94))   {mcp4013pulses = 38;}
    if ((analog_in >= 81) && (analog_in <= 87))   {mcp4013pulses = 39;}
    if ((analog_in >= 74) && (analog_in <= 80))   {mcp4013pulses = 40;}
    if ((analog_in >= 67) && (analog_in <=73))    {mcp4013pulses = 41;}
    if ((analog_in >= 60) && (analog_in <= 66))   {mcp4013pulses = 42;}
    if ((analog_in >= 53) && (analog_in <= 59))   {mcp4013pulses = 43;}
    if ((analog_in >= 46) && (analog_in <= 52))   {mcp4013pulses = 44;}
    if ((analog_in >= 39) && (analog_in <= 45))   {mcp4013pulses = 45;}
    if ((analog_in >= 32) && (analog_in <= 38))   {mcp4013pulses = 46;}
    if ((analog_in >= 25) && (analog_in <= 31))   {mcp4013pulses = 47;}
    if ((analog_in >= 18) && (analog_in <= 24))   {mcp4013pulses = 48;}
    if ((analog_in >= 11) && (analog_in <= 17))   {mcp4013pulses = 49;}
    if ((analog_in >= 4) &&  (analog_in <= 10))   {mcp4013pulses = 50;}
    if ((analog_in >= 0) &&  (analog_in <= 3))    {mcp4013pulses = 50;}
    }

    if (currentint == 4){
    //4 apart
    if  (analog_in >= 235)                   {mcp4013pulses = 4;}
    if ((analog_in >= 230) && (analog_in <= 234)) {mcp4013pulses = 5;}
    if ((analog_in >= 225) && (analog_in <= 229)) {mcp4013pulses = 6;}
    if ((analog_in >= 220) && (analog_in <= 224)) {mcp4013pulses = 7;}
    if ((analog_in >= 215) && (analog_in <= 219)) {mcp4013pulses = 8;}
    if ((analog_in >= 210) && (analog_in <= 214)) {mcp4013pulses = 9;}
    if ((analog_in >= 205) && (analog_in <= 209)) {mcp4013pulses = 10;}
    if ((analog_in >= 200) && (analog_in <= 204)) {mcp4013pulses = 11;}
    if ((analog_in >= 195) && (analog_in <= 199)) {mcp4013pulses = 12;}
    if ((analog_in >= 190) && (analog_in <= 194)) {mcp4013pulses = 13;}
    if ((analog_in >= 185) && (analog_in <= 189)) {mcp4013pulses = 14;}
    if ((analog_in >= 180) && (analog_in <= 184)) {mcp4013pulses = 15;}
    if ((analog_in >= 175) && (analog_in <= 179)) {mcp4013pulses = 16;}
    if ((analog_in >= 170) && (analog_in <= 174)) {mcp4013pulses = 17;}
    if ((analog_in >= 165) && (analog_in <= 169)) {mcp4013pulses = 18;}
    if ((analog_in >= 160) && (analog_in <= 164)) {mcp4013pulses = 19;}
    if ((analog_in >= 155) && (analog_in <= 159)) {mcp4013pulses = 20;}
    if ((analog_in >= 150) && (analog_in <= 154)) {mcp4013pulses = 21;}
    if ((analog_in >= 145) && (analog_in <= 149)) {mcp4013pulses = 22;}
    if ((analog_in >= 140) && (analog_in <= 144)) {mcp4013pulses = 23;}
    if ((analog_in >= 135) && (analog_in <= 139)) {mcp4013pulses = 24;}
    if ((analog_in >= 130) && (analog_in <= 134)) {mcp4013pulses = 25;}
    if ((analog_in >= 125) && (analog_in <= 129)) {mcp4013pulses = 26;}
    if ((analog_in >= 120) &&  (analog_in <= 124)) {mcp4013pulses = 27;}
    if ((analog_in >= 115) &&  (analog_in <= 119))  {mcp4013pulses = 28;}
    if ((analog_in >= 110) &&  (analog_in <= 114))  {mcp4013pulses = 29;}
    if ((analog_in >= 105) &&  (analog_in <= 109))  {mcp4013pulses = 30;}
    if ((analog_in >= 100) &&  (analog_in <= 104))  {mcp4013pulses = 31;}
    if ((analog_in >= 95) &&  (analog_in <= 99))  {mcp4013pulses = 32;}
    if ((analog_in >= 90) &&  (analog_in <= 94))  {mcp4013pulses = 33;}
    if ((analog_in >= 85) &&  (analog_in <= 89))  {mcp4013pulses = 34;}
    if ((analog_in >= 80) &&  (analog_in <= 84))  {mcp4013pulses = 35;}
    if ((analog_in >= 75) &&  (analog_in <= 79))  {mcp4013pulses = 36;}
    if ((analog_in >= 70) &&  (analog_in <= 74))  {mcp4013pulses = 37;}
    if ((analog_in >= 65) &&  (analog_in <= 69))  {mcp4013pulses = 38;}
    if ((analog_in >= 60) &&  (analog_in <= 64))  {mcp4013pulses = 39;}
    //3 apart
    if ((analog_in >= 56) &&  (analog_in <= 59))  {mcp4013pulses = 40;}
    if ((analog_in >= 52) &&  (analog_in <= 55))  {mcp4013pulses = 41;}
    if ((analog_in >= 48) &&   (analog_in <= 51)) {mcp4013pulses = 42;}
    if ((analog_in >= 44) &&   (analog_in <= 47)) {mcp4013pulses = 43;}
    if ((analog_in >=40) &&  (analog_in <= 43))   {mcp4013pulses = 39;}
    if ((analog_in >= 36) &&  (analog_in <= 39))  {mcp4013pulses = 40;}
    if ((analog_in >= 32) &&  (analog_in <= 35))  {mcp4013pulses = 41;}
    if ((analog_in >= 28) &&   (analog_in <= 31))  {mcp4013pulses = 42;}
    if ((analog_in >= 24) &&   (analog_in <= 27))   {mcp4013pulses = 43;}
    if ((analog_in >= 20) &&  (analog_in <= 23))  {mcp4013pulses =44;}
    if ((analog_in >= 16) &&  (analog_in <= 19))  {mcp4013pulses = 45;}
    if ((analog_in >= 12) &&  (analog_in <= 15))  {mcp4013pulses = 46;}
    if ((analog_in >= 8) &&   (analog_in <= 11))   {mcp4013pulses = 47;}
    if ((analog_in >= 4) &&  (analog_in <= 7))    {mcp4013pulses =48;}
    if ((analog_in >= 0) &&  (analog_in <= 3))    {mcp4013pulses = 49;}
    }

    top_mcp4013();      //top out the mcp4013
    mcp4013_csout = 1;  //disable mcp4013
    mcp4013_csout = 1;
    mcp4013_udout = 0;  //ready to decrement
    mcp4013_udout = 0;
    mcp4013_csout = 0;  //enable mcp4013
    mcp4013_csout = 0;
    for (i== 0; i== mcp4013pulses; i++){
    mcp4013_udout = 1;  //pulse it to the level
    mcp4013_udout = 1;
    mcp4013_udout = 0;
    mcp4013_udout = 0;
    }
    mcp4013_csout = 1;
    mcp4013_csout = 1;  //disable mcp4013

    return;
}

void    set_current_ext_AL(void){
    //This is to set the current in external mode when the 4th dipswitch
    //asks for the 0-10V signal to be "0V = Highest current"
    //["AL" stands for Active Low"]
    //MCP4013pulses will here be the number of downpulses to pulse the digital
    //pot with. (starting from the top of the resistor 'chain')
    //Never go below 11 POT steps (ie, never below 0.176V -> 300mA)
    //Make max current correspond to 0 bits to 9 bits on the 0-10V input
    //(ie anything below 0.3V will be max)
    if (currentint == 2) {
    //12 apart
    if  (analog_in <= 9)             {mcp4013pulses = 31;}
    if ((analog_in >= 10  ) && (analog_in <= 22))  {mcp4013pulses = 32;}
    if ((analog_in >= 23  ) && (analog_in <= 35))  {mcp4013pulses = 33;}
    if ((analog_in >= 36  ) && (analog_in <= 48))  {mcp4013pulses = 34;}
    if ((analog_in >= 49  ) && (analog_in <= 61))  {mcp4013pulses = 35;}
    if ((analog_in >= 62  ) && (analog_in <= 74))  {mcp4013pulses = 36;}
    if ((analog_in >= 75  ) && (analog_in <= 87))  {mcp4013pulses = 37;}
    if ((analog_in >= 88  ) && (analog_in <= 100))  {mcp4013pulses = 38;}
    if ((analog_in >= 101  ) && (analog_in <= 113))  {mcp4013pulses = 39;}
    if ((analog_in >= 114  ) && (analog_in <= 126))  {mcp4013pulses = 40;}
    if ((analog_in >= 127  ) && (analog_in <= 139))  {mcp4013pulses = 41;}
    if ((analog_in >= 140 ) && (analog_in <= 152))  {mcp4013pulses = 42;}
    if ((analog_in >= 153  ) && (analog_in <= 165)) {mcp4013pulses = 43;}
    if ((analog_in >= 166  ) && (analog_in <= 178)) {mcp4013pulses = 44;}
    if ((analog_in >= 179  ) && (analog_in <= 191)) {mcp4013pulses = 45;}
    if ((analog_in >= 192 )  && (analog_in <= 204)) {mcp4013pulses = 46;}
    if ((analog_in >= 205  ) && (analog_in <= 217)) {mcp4013pulses = 47;}
    if ((analog_in >= 218  ) && (analog_in <= 230)) {mcp4013pulses = 48;}
    if ((analog_in >= 231  ) && (analog_in <= 243)) {mcp4013pulses = 49;}
    if ((analog_in >= 244 )  && (analog_in <= 255)) {mcp4013pulses = 50;}
    }
    if (currentint == 3) {
    //7 apart
    if      (analog_in <= 9)     {mcp4013pulses = 17;}
    if ((analog_in >= 10  )  && (analog_in <= 17))   {mcp4013pulses = 18;}
    if ((analog_in >= 18  )  && (analog_in <= 25))   {mcp4013pulses = 19;}
    if ((analog_in >= 26  )  && (analog_in <= 33))   {mcp4013pulses = 20;}
    if ((analog_in >= 34  )  && (analog_in <= 41))   {mcp4013pulses = 21;}
    if ((analog_in >= 42  )  && (analog_in <= 49))   {mcp4013pulses = 22;}
    if ((analog_in >= 50  )  && (analog_in <= 57))   {mcp4013pulses = 23;}
    if ((analog_in >= 58  )  && (analog_in <= 65))   {mcp4013pulses = 24;}
    if ((analog_in >= 66  )  && (analog_in <= 73))   {mcp4013pulses = 25;}
    if ((analog_in >= 74  )  && (analog_in <= 81))   {mcp4013pulses = 26;}
    if ((analog_in >= 82  )  && (analog_in <= 89))   {mcp4013pulses = 27;}
    if ((analog_in >= 90  )  && (analog_in <= 97))   {mcp4013pulses = 28;}
    if ((analog_in >= 98  )  && (analog_in <= 105))  {mcp4013pulses = 29;}
    if ((analog_in >= 106 )  && (analog_in <= 113))  {mcp4013pulses = 30;}
    if ((analog_in >= 114  )  && (analog_in <= 121)) {mcp4013pulses = 31;}
    if ((analog_in >= 122  )  && (analog_in <= 129)) {mcp4013pulses = 32;}
    if ((analog_in >= 130  )  && (analog_in <= 137)) {mcp4013pulses = 33;}
    if ((analog_in >= 138  )  && (analog_in <= 145)) {mcp4013pulses = 34;}
    if ((analog_in >= 146  )  && (analog_in <= 153)) {mcp4013pulses = 35;}
    if ((analog_in >= 154 )  && (analog_in <= 161))  {mcp4013pulses = 36;}
    if ((analog_in >= 162  )  && (analog_in <= 169)) {mcp4013pulses = 37;}
    if ((analog_in >= 170  )  && (analog_in <= 177)) {mcp4013pulses = 38;}
    if ((analog_in >= 178  )  && (analog_in <= 185)) {mcp4013pulses = 39;}
    if ((analog_in >= 186 )  && (analog_in <= 193))  {mcp4013pulses = 40;}
    if ((analog_in >= 194 )  && (analog_in <= 201))  {mcp4013pulses = 41;}
    if ((analog_in >= 202  )  && (analog_in <= 209)) {mcp4013pulses = 42;}
    if ((analog_in >= 210  )  && (analog_in <= 217)) {mcp4013pulses = 43;}
    if ((analog_in >= 218  )  && (analog_in <= 225)) {mcp4013pulses = 44;}
    if ((analog_in >= 226 )  && (analog_in <= 233))  {mcp4013pulses = 45;}
    if ((analog_in >= 234 )  && (analog_in <= 241))  {mcp4013pulses = 46;}
    if ((analog_in >= 242  )  && (analog_in <= 249)) {mcp4013pulses = 47;}
    if ((analog_in >= 250  )  && (analog_in <= 255)) {mcp4013pulses = 48;}
    }
    if (currentint == 4)    {
    //4 apart
    if           (analog_in <= 9)    {mcp4013pulses = 4;}
    if ((analog_in >= 10  )  && (analog_in <= 14))   {mcp4013pulses = 5;}
    if ((analog_in >= 15  )  && (analog_in <= 19))   {mcp4013pulses = 6;}
    if ((analog_in >= 20  )  && (analog_in <= 24))   {mcp4013pulses = 7;}
    if ((analog_in >= 25  )  && (analog_in <= 29))   {mcp4013pulses = 8;}
    if ((analog_in >= 30  )  && (analog_in <= 34))   {mcp4013pulses = 9;}
    if ((analog_in >= 35  )  && (analog_in <= 39))   {mcp4013pulses = 10;}
    if ((analog_in >= 40  )  && (analog_in <= 44))   {mcp4013pulses = 11;}
    if ((analog_in >= 45  )  && (analog_in <= 49))   {mcp4013pulses = 12;}
    if ((analog_in >= 50  )  && (analog_in <= 54))   {mcp4013pulses = 13;}
    if ((analog_in >= 55  )  && (analog_in <= 59))   {mcp4013pulses = 14;}
    if ((analog_in >= 60  )  && (analog_in <= 64))   {mcp4013pulses = 15;}
    if ((analog_in >= 65  )  && (analog_in <= 69))  {mcp4013pulses = 16;}
    if ((analog_in >= 70  )  && (analog_in <= 74))   {mcp4013pulses = 17;}
    if ((analog_in >= 75  )  && (analog_in <= 79))   {mcp4013pulses = 18;}
    if ((analog_in >= 80  )  && (analog_in <= 84))   {mcp4013pulses = 19;}
    if ((analog_in >= 85  )  && (analog_in <= 89))   {mcp4013pulses = 20;}
    if ((analog_in >= 90  )  && (analog_in <= 94))   {mcp4013pulses = 21;}
    if ((analog_in >= 95  )  && (analog_in <= 99))   {mcp4013pulses = 22;}
    if ((analog_in >= 100  )  && (analog_in <= 104))   {mcp4013pulses = 23;}
    if ((analog_in >= 105  )  && (analog_in <= 109))   {mcp4013pulses = 24;}
    if ((analog_in >= 110  )  && (analog_in <= 114))   {mcp4013pulses = 25;}
    if ((analog_in >= 115  )  && (analog_in <= 119))   {mcp4013pulses = 26;}
    if ((analog_in >= 120  )  && (analog_in <= 124))   {mcp4013pulses = 27;}
    if ((analog_in >= 125  )  && (analog_in <= 129))   {mcp4013pulses = 28;}
    if ((analog_in >= 130  )  && (analog_in <= 134))   {mcp4013pulses = 29;}
    if ((analog_in >= 135  )  && (analog_in <= 139))   {mcp4013pulses = 30;}
    if ((analog_in >= 140  )  && (analog_in <= 144))   {mcp4013pulses = 31;}
    if ((analog_in >= 145  )  && (analog_in <= 149))   {mcp4013pulses = 32;}
    if ((analog_in >= 150  )  && (analog_in <= 154))   {mcp4013pulses = 33;}
    if ((analog_in >= 155  )  && (analog_in <= 159))   {mcp4013pulses = 34;}
    if ((analog_in >= 160  )  && (analog_in <= 164))   {mcp4013pulses = 35;}
    if ((analog_in >= 165  )  && (analog_in <= 169))   {mcp4013pulses = 36;}
    if ((analog_in >= 170  )  && (analog_in <= 174))   {mcp4013pulses = 37;}
    if ((analog_in >= 175  )  && (analog_in <= 179))   {mcp4013pulses = 38;}
    if ((analog_in >= 180  )  && (analog_in <= 184))   {mcp4013pulses = 39;}
    if ((analog_in >= 185  )  && (analog_in <= 189))   {mcp4013pulses = 40;}
    if ((analog_in >= 190  )  && (analog_in <= 194))   {mcp4013pulses = 41;}
    if ((analog_in >= 195  )  && (analog_in <= 199))   {mcp4013pulses = 42;}
    if ((analog_in >= 200  )  && (analog_in <= 204))   {mcp4013pulses = 43;}
    if ((analog_in >= 205  )  && (analog_in <= 209))   {mcp4013pulses = 44;}
    if ((analog_in >= 210  )  && (analog_in <= 214))   {mcp4013pulses = 45;}
    if ((analog_in >= 215  )  && (analog_in <= 219))   {mcp4013pulses = 46;}
    if ((analog_in >= 220  )  && (analog_in <= 224))   {mcp4013pulses = 47;}
    if ((analog_in >= 225  )  && (analog_in <= 229))   {mcp4013pulses = 48;}
    if ((analog_in >= 230  )  && (analog_in <= 234))   {mcp4013pulses = 49;}
    if ((analog_in >= 235  )  && (analog_in <= 239))   {mcp4013pulses = 50;}
    if ((analog_in >= 240  )  && (analog_in <= 244))   {mcp4013pulses = 51;}
    if ((analog_in >= 245  )  && (analog_in <= 249))   {mcp4013pulses = 52;}
    if ((analog_in >= 250  )  && (analog_in <= 255))   {mcp4013pulses = 53;}
}
    top_mcp4013();      //top out the mcp4013
    mcp4013_csout = 1;  //disable mcp4013
    mcp4013_csout = 1;
    mcp4013_udout = 0;  //ready to decrement
    mcp4013_udout = 0;
    mcp4013_csout = 0;  //enable mcp4013
    mcp4013_csout = 0;
    for (i== 0; i== mcp4013pulses; i++){
    mcp4013_udout = 1;  //pulse it to the level
    mcp4013_udout = 1;
    mcp4013_udout = 0;
    mcp4013_udout = 0;
    }
    mcp4013_csout = 1;
    mcp4013_csout = 1;  //disable mcp4013
return;

}

 

[FvM]

I would expect a code line like below for 4 MHz oscillator frequency, or whatever your setting is. Of course it should comply to your actual setting.

#define _XTAL_FREQ 4e6

 

[horace1]

this compiled Ok with XC8

#define _XTAL_FREQ 800000

...

void main(void) {
//OSCCON = 0x50;
OSCCON = 0x36;
disable_interrupts();
...
__delay_ms(100);

what is the actual error message you are getting?

 

[treez]

the error is just the red ball that comes up in the mplab.x window when one types in a bad 'un.

"_XTAL_FREQ" implies use of a crystal, but I am not...I am wishing to use the internal oscillator..are you sure "_XTAL_FREQ" applies?

 

[FvM]

"_XTAL_FREQ" implies use of a crystal

Not actually. May be it reveals sloppy usage of terms by the Hitech guys... From the PIC's viewpoint it's oscillator frequency in both cases. That's essentially what the user manual says:

This symbol should be defined as the oscillator frequency (in Hertz) used by the system.

No idea where you see a "red ball".

 

[treez]

red "ball" is on LHS of mplab.x code window....it appears when one types in a bad syntax

 

[horace1]

if I comment out the definition of _XTAL_FREQ I get the 'red ball' indicating the line in error


why not use the XC8 compiler - it is free for lite use?

 

[treez]

thanks, I am using the XC8 compiler, the free one.

 

[horace1]

thanks, I am using the XC8 compiler, the free one.

for some reason I thought you were using the HiTech compiler

are you still getting an error when you define _XTAL_FREQ? e.g.

#define _XTAL_FREQ 800000

if so what is the error message?

 

[treez]

thanks ...it is fine now, no error...I set osccon = 0x56 for 4mhz aswell