Help me on mikroc 8.2 build error "Not enough RAM...&qu

[aneeshere]

mikroc 8.2

Hi,
am doing a program in mikroc for pic 16f877a. When i tried to build the following error is displayed
"Not enough RAM Istr1_timer1leap"

timer1leap is the file name..
Can anyone helpl me

 

[Tahmid]

Help me on mikroc 8.2 build error "Not enough RAM...&am

Hi,
This is because 16F877A doesn't have enough RAM. You might want to recheck your code, or use a device with larger RAM, like 18F458, which has 1.5kByte RAM vs 368Byte of 16F877A.

Hope this helps.
Tahmid.

Added after 1 minutes:

I think you have used many 32-bit long or floating type variables. Try to use appropriate variable declaration when needed, so that minimum RAM is used.

 

[toto_na16]

Re: Help me on mikroc 8.2 build error "Not enough RAM..

Hi,
This is because 16F877A doesn't have enough RAM. You might want to recheck your code, or use a device with larger RAM, like 18F458, which has 1.5kByte RAM vs 368Byte of 16F877A.

Hope this helps.
Tahmid.

Added after 1 minutes:

I think you have used many 32-bit long or floating type variables. Try to use appropriate variable declaration when needed, so that minimum RAM is used.

I am using PIC16F877A to interface a password system and I wrote this code

char t;
char temp;
char ks[4];
char pp1[4];
char pp2[4];
char Ta[16]={'A','9','8','7','B','6','5','4','C','3','2','1','D','#','0','*'};
unsigned ec;
char factorypass[4]={'1','2','3','4'};
int flag;
int newflag;
int fcfp=0; // flag correct factory password
int compare(char*,char*);
void input(char*);







void main(){
            // se eeprom add 0x00
            Eeprom_Write(0x00,0);
            // fu eeprom add 0x01
            Eeprom_Write(0x01,0);
            TRISD=0x00;
            Lcd_Config(&PORTD,2,3,0,7,6,5,4);
            LCD_Cmd(LCD_Cursor_Off);
            Keypad_Init(&PORTC);


             while(1){
                      if(Eeprom_Read(0x00)==1){
                                               LCD_Cmd(LCD_Clear);
                                               LCD_Out(1,3,"system error");
                                               LCD_Out(2,3,"contact factory");
                                               delay_ms(20);
                                               break;
                                               }
                      if(Eeprom_Read(0x01)==0){
                                               while(fcfp==0){
                                               LCD_Cmd(LCD_Clear);
                                               LCD_Out(1,3,"enter factory");
                                               LCD_Out(2,3,"password");
                                               delay_ms(3000);
                                               LCD_Cmd(LCD_Clear);
                                               LCD_Chr(2,4,' ');
                                               input(ks);
                                               /*for(temp=0;temp<4;temp++){
                                                                              ec=0;
                                                                              while(ec==0)
                                                                                    ec = keypad_Released();
                                                                              LCD_Chr_Cp('*');
                                                                              t= Ta[ec-1];
                                                                              ks[temp] = t;
                                                                        }*/
                                               /*for(temp=0;temp<4;temp++){
                                                                         if(factorypass[temp]!=ks[temp])
                                                                                                         {flag=1;}
                                                                        }*/
                                               flag = compare(factorypass,ks);
                                               if(flag==1){
                                                           LCD_Cmd(LCD_Clear);
                                                           LCD_Out(1,3,"enter new");
                                                           LCD_Out(2,3,"password");
                                                           fcfp=1;
                                                           delay_ms(3000);
                                                           LCD_Cmd(LCD_Clear);
                                                           LCD_Chr(2,4,' ');
                                   inputpp1:                        /*for(temp=0;temp<4;temp++){
                                                                                          ec=0;
                                                                                          while(ec==0)
                                                                                                ec = keypad_Released();
                                                                                          LCD_Chr_Cp('*');
                                                                                          t= Ta[ec-1];
                                                                                          pp1[temp] = t;
                                                                                    }*/
                                                           input(pp1);
                                                           LCD_Cmd(LCD_Clear);
                                                           LCD_Out(1,1,"enter the same");
                                                           LCD_Out(2,1,"password again");
                                                           delay_ms(3000);
                                                           LCD_Cmd(LCD_Clear);
                                                           LCD_Chr(2,4,' ');
                                                           /*for(temp=0;temp<4;temp++){
                                                                                          ec=0;
                                                                                          while(ec==0)
                                                                                                ec = keypad_Released();
                                                                                          LCD_Chr_Cp('*');
                                                                                          t= Ta[ec-1];
                                                                                          pp2[temp] = t;
                                                                                    }*/
                                                           input(pp2);
                                                           /*for(temp=0;temp<4;temp++){
                                                                                     if(pp1[temp]!=pp2[temp])
                                                                                     {newflag=1;}
                                                                                    }*/
                                                           newflag = compare(pp1,pp2);
                                                           if(newflag==1){
                                                                          LCD_Cmd(LCD_Clear);
                                                                          LCD_Out(1,1,"doesn't match");
                                                                          LCD_Out(2,1,"enter again");
                                                                          delay_ms(3000);
                                                                          LCD_Cmd(LCD_Clear);
                                                                          LCD_Chr(2,4,' ');
                                                                          goto inputpp1;
                                                                          }
                                                           if(newflag==0){
                                                                          LCD_Cmd(LCD_Clear);
                                                                          LCD_Out(1,1,"you have set");
                                                                          LCD_Out(2,1,"new password");
                                                                          ///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////cpppppp
                                                                          //////////////////////////////
                                                                          ///////////////////////////
                                                                          ////////////////////
                                                                          }

                                                           }


                                               if(flag==0){
                                                           LCD_Cmd(LCD_Clear);
                                                           LCD_Out(1,3,"wrong factory");
                                                           LCD_Out(2,3,"password");
                                                           delay_ms(2000);
                                                           LCD_Cmd(LCD_Clear);
                                                           LCD_Out(1,1,"enter correct");
                                                           LCD_Out(2,1,"factory password");
                                                           }
                                                           }
                                               }
                                               }   /////main while end
                                               
} ///////////main func end

int compare(char* a,char* b){
                             int FF;
                             int i;
                             for(i=0;i<4;i++){
                                                       if(a[i]!=b[i])
                                                       {FF=1;
                                                        break;
                                                       }
                                              }
                             return FF;
                             }
                             
void input(char* c){
                    int j;
                    for(j=0;j<4;j++){
                                              ec=0;
                                              while(ec==0)
                                                          ec = keypad_Released();
                                               LCD_Chr_Cp('*');
                                               t= Ta[ec-1];
                                               c[j] = t;
                                              }
                   }

if I changed the pic16f877a, will I have to change the instructions ??