Voor een project betreffende de bouw van een laadkabel voor elektrische auto's ( https://github.com/kortas87/simple-evse) wil ik het programma compileren.
Het moet in een PIC16F1825 geflasht worden.
Nou werk ik altijd met Assembly dus eerst ben ik al een middag bezig geweest om de compiler XC8 erbij te plaatsen en werkend te krijgen binnen MPLABX 6.05. 
Bij het compileren komen er wat foutmeldingen en ik heb totaal geen verstand van dat rare taaltje C 
.
De vraag is dus hoe ik de boel gecompileerd krijg zonder foutmeldingen.
Dit is het programma:
c code:
/*
* File: main.c
* Author: Petr Kortanek, i4wifi a.s.
*
* Created on 23rd November 2013
*
* 2014-01-11 - RA3 (MCLR, prog 1) input for button
* 2014-04-09 - RA0 (ICSPDAT, prog 4) potentiometer input
* 2014-08-11 - fixed PWM duty (+10bit), RA1 (ICSPCLK, prog 5) input switch 6A / 10A
*/
#include <stdio.h>
#include <stdlib.h>
#include <xc.h>
#define _XTAL_FREQ 4000000
#define Button_pressed PORTAbits.RA3
#pragma config LVP = OFF, MCLRE = OFF, BOREN = OFF, PLLEN = OFF, FOSC = INTOSC, WDTE = OFF, CP = OFF, PWRTE = OFF
char latcha = 0;
char latchc = 0;
char pilot_value = 255;
char pot_value = 255;
char pot_value2 = 255;
char adchannel = 2;
char measure_nth = 0;
char button_pressed_counter = 0;
char amps = 16;
char amps_to_set = 16;
char setbypot = 0;
short duty = 500; //50%
//attached to RC1
void relayon() {
latchc = latchc | 0b00000011;//RC1+backup RC0
PORTC = latchc;
}
void relayoff() {
latchc = latchc & 0b11111100;//RC1+backup RC0
PORTC = latchc;
}
//attached to RC2
void ledon() {
latchc = latchc | 0b00000100;
PORTC = latchc;
}
void ledoff() {
latchc = latchc & 0b11111011;
PORTC = latchc;
}
void button_flashing() {
for (int i=0; i<20; i++) {
ledon();
__delay_ms(30);
ledoff();
__delay_ms(30);
}
}
void setAmps() {
setbypot = 0;
//we get current limit from the pot
if (pot_value <= 222) { //<4.4V, amps 6-80
amps = 6 + (222-pot_value)/3;
setbypot = 1;
}
//we get current limit from the "pot2" (set 6A / 10A)
if (pot_value2 <= 222) { //<4.4V,
amps = 10;
if (pot_value2 <= 25) { //short => amps 6 ~ >3kOhm
amps = 6;
}
setbypot = 1;
}
if (setbypot == 0) {
amps = amps_to_set;
}
//minimum
if (amps < 5)
amps = 5;
//maximum
if (amps > 80)
amps = 80;
//compute PWM duty
if (amps < 51)
duty = 1000 - (100 * amps) / 6;
else
duty = 1000 - (4*amps+640);
//set PWM output 10bit
CCPR1L = duty >> 2;
duty &= 0b00000011;
duty <<= 4;
CCP1CON = duty + 12; //1100
}
void main() {
OSCCON = 0b01101010; // 4MHz
TRISA = 0b11111111; //pilot detect RA2, button detect RA3, pot RA0, pot2 RA1
TRISC = 0b11110000; //relay RC1 (+backup RC0), LED RC2, pilot RC3
latcha = 0;
latchc = 0;
PORTA = latcha;
PORTC = latchc;
ADCON1 = 0b01100000; // f/64 4MHz, 16 us
ADON = 1; //channel: RA2=PWM detect, RA0=pot value, RA1=pot2 value
ADCON0bits.CHS = 2;
//pilot PWM RC3
PSTR1CONbits.STR1C = 1;
APFCON1bits.P1CSEL = 0; //P1C function is on RC3
PR2 = 249 ;//period value
CCP1CON = 0b00001100; //PWM mode
OPTION_REG = 0b00000001; //pullups and TMR0
WPUAbits.WPUA3 = 1; //button pressed detect - MCLR
WPUAbits.WPUA1 = 1; //6A / 10A input RA1
//T2CON timer ON + prescaler 4
T2CON = 0b00000101 ;
//INTCON = 0b11100000;
GIE = 1;
PEIE = 1;
ADIE = 1;
TMR2IE = 1;
setAmps();
while(1) {
//MODE set current
if(Button_pressed == 0) {
button_pressed_counter++;
//setting mode entered - rapid led flashing
if (button_pressed_counter == 5) {
button_flashing();
amps_to_set = 0;
}
if (button_pressed_counter >= 5) {
amps_to_set++;
setAmps();
ledoff();
__delay_ms(300);
ledon();
__delay_ms(300);
} else {
__delay_ms(800);
}
//MODE normal operation
} else {
if(button_pressed_counter>=5) {
//current setting mode exit confirmation
button_flashing();
}
button_pressed_counter = 0;
//car connected (pilot pulled down <8V)
if(pilot_value < 111) {
relayon();
ledon();
__delay_ms(800);
} else {
ledon();
__delay_ms(30);
relayoff();
}
ledoff();
__delay_ms(300);
}
}
}
void interrupt isr() {
//channel: RA2=PWM detect or RA0=pot value
if (ADIF) {
if (adchannel == 0) {
pot_value = ADRESH;
setAmps();
adchannel = 1;
} else if (adchannel == 1) {
pot_value2 = ADRESH;
setAmps();
adchannel = 2;
} else {
pilot_value = ADRESH;
adchannel = 0;
}
ADCON0bits.CHS = adchannel;
ADIF = 0;
}
if (TMR2IF) {
TMR2IF = 0;
//voltage must be measured when voltage is "up"
measure_nth++;
if (measure_nth>98) {
__delay_us(950);
GO_nDONE = 1;
measure_nth = 0;
}
}
}
En dit zijn de meldingen:
CLEAN SUCCESSFUL (total time: 6ms)
make -f nbproject/Makefile-default.mk SUBPROJECTS= .build-conf
make[1]: Entering directory 'C:/Users/Wes/MPLABXProjects/simple_EVSE.X'
make -f nbproject/Makefile-default.mk dist/default/production/simple_EVSE.X.production.hex
make[2]: Entering directory 'C:/Users/Wes/MPLABXProjects/simple_EVSE.X'
"C:\Program Files\Microchip\xc8\v2.41\bin\xc8-cc.exe" -mcpu=16F1825 -c -mdfp="C:/Program Files/Microchip/MPLABX/v6.05/packs/Microchip/PIC12-16F1xxx_DFP/1.3.90/xc8" -fno-short-double -fno-short-float -O0 -fasmfile -maddrqual=ignore -xassembler-with-cpp -mwarn=-3 -Wa,-a -DXPRJ_default=default -msummary=-psect,-class,+mem,-hex,-file -ginhx32 -Wl,--data-init -mno-keep-startup -mno-osccal -mno-resetbits -mno-save-resetbits -mno-download -mno-stackcall -mdefault-config-bits -std=c99 -gdwarf-3 -mstack=compiled:auto:auto -o build/default/production/nbproject/main.p1 nbproject/main.c
nbproject/main.c:96:17: warning: implicit conversion loses integer precision: 'int' to 'unsigned char' [-Wconversion]
CCPR1L = duty >> 2;
~ ~~~~~^~~~
nbproject/main.c:99:18: warning: implicit conversion loses integer precision: 'int' to 'unsigned char' [-Wconversion]
CCP1CON = duty + 12; //1100
~ ~~~~~^~~~
nbproject/main.c:187:8: error: variable has incomplete type 'void'
void interrupt isr() {
^
nbproject/main.c:187:17: error: expected ';' after top level declarator
void interrupt isr() {
^
;
2 warnings and 2 errors generated.
(908) exit status = 1
nbproject/Makefile-default.mk:101: recipe for target 'build/default/production/nbproject/main.p1' failed
make[2]: Leaving directory 'C:/Users/Wes/MPLABXProjects/simple_EVSE.X'
nbproject/Makefile-default.mk:85: recipe for target '.build-conf' failed
make[1]: Leaving directory 'C:/Users/Wes/MPLABXProjects/simple_EVSE.X'
nbproject/Makefile-impl.mk:39: recipe for target '.build-impl' failed
make[2]: *** [build/default/production/nbproject/main.p1] Error 1
make[1]: *** [.build-conf] Error 2
make: *** [.build-impl] Error 2
BUILD FAILED (exit value 2, total time: 1s)
)