Indramal
Newbie level 4
Description:
I tried to make a circuit using PIC18F4550 Microcontroller and MikroC Programming Language. This is my program sequence.
Code:
This is my program for this sequence in MikroC language. Still not finished it.
Error:
When I add one more line to this code for example Delay_ms(300); line then my Proteus Simulation and real practical both not working. But program memory not full in IC. IC is resetting.
Proteus Simulation gives me following error message continuously.
I think this is not Nested Calls Limitations error because this code does not have more function calls than recommended function calls.
Question:
How to identify error points in a code and how to solve out this problem? What is 0x09BC point.
If you want any other data to identify error please tell me.
This is Proteus and MikroC Code **broken link removed** to download
Simulation Practical:
I did following practical but I can not identify error points.
This is data of without Stack Overflow error in CPU Stack and CPU Data Memory. CPU data memory store in last memory location and middle memory locations are free.
This is data of with Stack Overflow error in CPU Stack and CPU Data Memory. CPU data memory store in last memory location and middle memory locations are free.
Also in CPU stack going from 31 to 0 continuously and that is change to 0x09BC.
EEPROM also have a lot of free memory locations.
I tried to make a circuit using PIC18F4550 Microcontroller and MikroC Programming Language. This is my program sequence.
- There are 20 schedules to choose and each schedule have 6 timing values.
- This schedule number store in the first EEPROM and other times data store from 10 to 129 EEPROM memory. (6 timing values x 20 schedules and starts from 10 memory)
- The user can choose one of the schedules and can edit times of each schedule.
- When a user selects a schedule those times values for outputs delay.
- Data show on LCD Display
- This has 6 Inputs. (Settings (B1), Up (B2), Down (B3), Enter (B4), Reset (B5), Test (B6), Proximity (B7)
Code:
This is my program for this sequence in MikroC language. Still not finished it.
Code:
// LCD module connections
sbit LCD_RS at RD0_bit;
sbit LCD_EN at RD1_bit;
sbit LCD_D4 at RD4_bit;
sbit LCD_D5 at RD5_bit;
sbit LCD_D6 at RD6_bit;
sbit LCD_D7 at RD7_bit;
sbit LCD_RS_Direction at TRISD0_bit;
sbit LCD_EN_Direction at TRISD1_bit;
sbit LCD_D4_Direction at TRISD4_bit;
sbit LCD_D5_Direction at TRISD5_bit;
sbit LCD_D6_Direction at TRISD6_bit;
sbit LCD_D7_Direction at TRISD7_bit;
// End LCD module connections
unsigned short shedno=0,i=0,shedc=0,streg,lsreg,rang,x,ed,edi;
unsigned count=0,reg1, reg2, reg3, reg4, reg5, reg6,sttime=1000,editno1=0,editno2=0,editno3=0,editno4=0,editno5=0,editno6=0;
char shednon[4]="",countn[6]="",stregn[4]="",lsregn[4]="",regval[6]="",ntrel1[6]="",ntrel2[6]="",ntrel3[6]="",ntrel4[6]="",ntrel5[6]="",ntrel6[6]="";
void findshed(short sno){
shedno = EEPROM_Read(0x00);
shedno = 256 - shedno;
shedno = shedno + sno;
ByteToStr(shedno, shednon);
streg = 6*shedno+4;
lsreg = streg + 5;
ByteToStr(streg, stregn);
ByteToStr(lsreg, lsregn);
}
void shedrelay(){
rang =0;
for(x=streg; x<=lsreg; x++){
regval[rang] = EEPROM_Read(x);
Delay_ms(100);
if(rang < 6){
rang++;
}
}
reg1 = regval[0]+sttime+editno1;
reg2 = regval[1]+sttime+editno2;
reg3 = regval[2]+sttime+editno3;
reg4 = regval[3]+sttime+editno4;
reg5 = regval[4]+sttime+editno5;
reg6 = regval[5]+sttime+editno6;
Wordtostr(reg1,ntrel1);
Wordtostr(reg2,ntrel2);
Wordtostr(reg3,ntrel3);
Wordtostr(reg4,ntrel4);
Wordtostr(reg5,ntrel5);
Wordtostr(reg6,ntrel6);
}
void shedselectdis(){
Lcd_Cmd(_LCD_CLEAR);
Lcd_Out(1,1,"Next Shedule: S");
Lcd_Out(1,16,shednon);
Lcd_Out(2,1,"R1:");
Lcd_Out(2,4,ntrel1);
Lcd_Out(2,11,"R2:");
Lcd_Out(2,14,ntrel2);
Lcd_Out(3,1,"R3:");
Lcd_Out(3,4,ntrel3);
Lcd_Out(3,11,"R4:");
Lcd_Out(3,14,ntrel4);
Lcd_Out(4,1,"R5:");
Lcd_Out(4,4,ntrel5);
Lcd_Out(4,11,"R6:");
Lcd_Out(4,14,ntrel6);
}
void editshed(){
Lcd_Cmd(_LCD_CLEAR);
Lcd_Cmd(_LCD_CURSOR_OFF);
Lcd_Out(1,1,"Edit Shedule: S");
Lcd_Out(1,16,shednon);
Lcd_Out(2,1,"R1:");
Lcd_Out(2,4,ntrel1);
Lcd_Out(2,11,"R2:");
Lcd_Out(2,14,ntrel2);
Lcd_Out(3,1,"R3:");
Lcd_Out(3,4,ntrel3);
Lcd_Out(3,11,"R4:");
Lcd_Out(3,14,ntrel4);
Lcd_Out(4,1,"R5:");
Lcd_Out(4,4,ntrel5);
Lcd_Out(4,11,"R6:");
Lcd_Out(4,14,ntrel6);
}
void relayssw(int x1, int x2, int x3, int x4, int x5, int x6){
PORTA = 0b00000001;
VDelay_ms(x1);
PORTA = 0b00000000;
Delay_ms(50);
PORTA = 0b00000010;
VDelay_ms(x2);
PORTA = 0b00000000;
Delay_ms(50);
PORTA = 0b00000100;
VDelay_ms(x3);
PORTA = 0b00000000;
Delay_ms(50);
PORTA = 0b00001000;
VDelay_ms(x4);
PORTA = 0b00000000;
Delay_ms(50);
PORTA = 0b00010000;
VDelay_ms(x5);
PORTA = 0b00000000;
Delay_ms(50);
PORTA = 0b00100000;
VDelay_ms(x6);
PORTA = 0b00000000;
Delay_ms(50);
}
void disval(){
Lcd_Cmd(_LCD_CLEAR);
findshed(0);
Lcd_Out(1,1,"Shedule: S");
Lcd_Out(1,11,shednon);
Lcd_Out(2,1,"Count:");
WordToStr(count, countn);
Lcd_Out(2,1,"Count:");
Lcd_Out(2,8,countn);
Lcd_Out(3,1,"Steps:");
Lcd_Out(4,1,"Temp:");
}
void main() {
TRISA = 0b00000000;
TRISB = 0b11111111;
PORTA = 0b00000000;
ADCON0=0;
ADCON1=0X0F;
CMCON=0X07;
CCP1CON=0;
CCP2CON=0;
SSPCON1=0;
Lcd_Init();
Lcd_Cmd(_LCD_CLEAR);
Lcd_Cmd(_LCD_CURSOR_OFF);
Lcd_Out(1,6,"Welcome !");
Delay_ms(2000);
Lcd_Cmd(_LCD_CLEAR);
disval();
EEPROM_Write(0x00,255);
/*for(i=1;i<131;i++){
EEPROM_Write(i,i);
Delay_ms(50);
}*/
while(1){
if(PORTB.B7 = 1){ //proximity count
Delay_ms(300);
count++;
disval();
}
//
if(PORTB.B5 = 1){ //proximity count reset
Delay_ms(300);
Lcd_Cmd(_LCD_CLEAR);
Lcd_Out(1,1,"Reset Count?");
WordToStr(count, countn);
Lcd_Out(2,1,countn);
Lcd_Out(3,1,"Press Enter to Reset");
Lcd_Out(4,1,"Press Up to Back");
while(1){
if(PORTB.B4 = 1){ //enter
Delay_ms(300);
count=0;
disval();
break;
}else if(PORTB.B2 = 1){ //up
Delay_ms(300);
disval();
break;
}
}
}
//
if(PORTB.B1 = 1){ //settings
shedc = 0;
Lcd_Cmd(_LCD_CLEAR);
Lcd_Out(1,1,"Select Shedule: S");
findshed(0);
Lcd_Out(1,18,shednon);
Lcd_Out(2,1,"Select Set. to Back");
Lcd_Out(3,1,"Select Enter to Edit");
Lcd_Out(4,1,"Select Up or Down");
Lcd_Cmd(_LCD_FIRST_ROW);
for(i=1;i<17;i++){
Lcd_Cmd(_LCD_MOVE_CURSOR_RIGHT);
}
Lcd_Cmd(_LCD_BLINK_CURSOR_ON);
while(1){
if(PORTB.B1 = 1){ //exit
Delay_ms(300);
disval();
Lcd_Cmd(_LCD_CURSOR_OFF);
break;
}else if(PORTB.B2 = 1){ //up button
Delay_ms(300);
if(shedno < 20){
shedc++;
}
findshed(shedc);
Lcd_Out(1,18,shednon);
Lcd_Cmd(_LCD_FIRST_ROW);
for(i=1;i<17;i++){
Lcd_Cmd(_LCD_MOVE_CURSOR_RIGHT);
}
Lcd_Cmd(_LCD_BLINK_CURSOR_ON);
}else if(PORTB.B3 = 1){ //down button
Delay_ms(300);
if(shedno > 1){
shedc--;
}
findshed(shedc);
Lcd_Out(1,18,shednon);
Lcd_Cmd(_LCD_FIRST_ROW);
for(i=1;i<17;i++){
Lcd_Cmd(_LCD_MOVE_CURSOR_RIGHT);
}
Lcd_Cmd(_LCD_BLINK_CURSOR_ON);
}else if(PORTB.B4 = 1){ //enter button
Delay_ms(300);
findshed(shedc);
shedrelay();
editshed();
Lcd_Cmd(_LCD_SECOND_ROW);
Lcd_Cmd(_LCD_BLINK_CURSOR_ON);
editno1 = 0;
editno2 = 0;
editno3 = 0;
editno4 = 0;
editno5 = 0;
editno6 = 0;
while(1){
for(ed = 1; ed < 6; ed++){
while(1){
if(PORTB.B2 == 1){ //up
//Delay_ms(300);
if(ed ==1){
editno1++;
}else if(ed ==2){
editno2++;
}else if(ed ==3){
editno3++;
}else if(ed ==4){
editno4++;
}else if(ed ==5){
editno5++;
}else if(ed ==6){
editno6++;
}
findshed(shedc);
shedrelay();
editshed();
}else if(PORTB.B3 == 1){ //down
//Delay_ms(300);
if(ed ==1){
editno1--;
}else if(ed ==2){
editno2--;
}else if(ed ==3){
editno3--;
}else if(ed ==4){
editno4--;
}else if(ed ==5){
editno5--;
}else if(ed ==6){
editno6--;
}
findshed(shedc);
shedrelay();
editshed();
}else if(PORTB.B4 == 1){ //enter
//------------------------------------------------------------------------
//Delay_ms(300); //POINT A
//------------------------------------------------------------------------
break;
}
}
}
Lcd_Cmd(_LCD_CLEAR);
}
}
}
}
//
if((PORTB.B2 = 1)||(PORTB.B3 = 1)){ //up or down
shedc = 0;
Delay_ms(300);
Lcd_Cmd(_LCD_CLEAR);
findshed(0);
Lcd_Out(1,1,"Runing: S");
Lcd_Out(1,10,shednon);
Lcd_Out(2,1,"Next:");
Lcd_Out(3,1,"Press Up or Down Key");
Lcd_Out(4,1,"Press Reset to Back");
while(1){
if(PORTB.B3 = 1){ //down
Delay_ms(300);
if(shedno > 1){
shedc--;
}
findshed(shedc);
shedrelay();
shedselectdis();
}else if(PORTB.B2 = 1){ //up
Delay_ms(300);
if(shedno < 20){
shedc++;
}
findshed(shedc);
shedrelay();
shedselectdis();
}else if(PORTB.B4 = 1){ //enter
Delay_ms(300);
findshed(shedc);
EEPROM_Write(0x00,256-shedno);
disval();
break;
}else if(PORTB.B6 = 1){ //test
Delay_ms(300);
PORTC = 0b00000000;
Delay_ms(100);
relayssw(reg1, reg2, reg3, reg4, reg5,reg6);
}else if(PORTB.B5 = 1){ //reset
Delay_ms(300);
disval();
break;
}
}
}
//
}
}Error:
When I add one more line to this code for example Delay_ms(300); line then my Proteus Simulation and real practical both not working. But program memory not full in IC. IC is resetting.
Proteus Simulation gives me following error message continuously.
I think this is not Nested Calls Limitations error because this code does not have more function calls than recommended function calls.
Question:
How to identify error points in a code and how to solve out this problem? What is 0x09BC point.
If you want any other data to identify error please tell me.
This is Proteus and MikroC Code **broken link removed** to download
Simulation Practical:
I did following practical but I can not identify error points.
This is data of without Stack Overflow error in CPU Stack and CPU Data Memory. CPU data memory store in last memory location and middle memory locations are free.
This is data of with Stack Overflow error in CPU Stack and CPU Data Memory. CPU data memory store in last memory location and middle memory locations are free.
Also in CPU stack going from 31 to 0 continuously and that is change to 0x09BC.
EEPROM also have a lot of free memory locations.
