00 to 99 counter using 2 seven segment multiplexing

[sayf alawneh]

2 common cathode 7 segments and pic 16f877a and mikroc pro for pic
2 transistors connected with RD0 and RD1 , the RD0 transistor is responsible about the tens digit and the RD1 transistor is responsible about the ones digit the 2 common cathode 7 segments are connected to portb
code :

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char x,y=0; // x for ones and y for 10s
char I;
unsigned short mask(unsigned short num){
switch(num){
case 0:return 0x3f;
case 1:return 0x06;
case 2:return 0x5B;
case 3:return 0x4F;
case 4:return 0x66;
case 5:return 0x6D;
case 6:return 0x7D;
case 7:return 0x07;
case 8:return 0x7F;
case 9:return 0x6F;
}
}
void main()
{
TRISB=0;// PORTB is output
TRISD=0;// PORTD is output
PORTB=0;// initialize PORTB
PORTD=0;// initialize PORTD
for(;;){ // ifinite loop
for (I=0;I<200;I++){ // delay_1second for the counter since every digit takes 5 ms 
PORTD=1; // PORTD=0B00000001; transistor on RD0 is enabled and transistor on RD1 is disabled
PORTB=mask(y); //tens digit
delay_ms(5);// eye delay
PORTD=2; // PORTD=0B00000010; transistor on RD1 is enabled and transistor on RD0 is disabled
PORTB=mask(x); //ones digit
delay_ms(5); // eye dealy
}
x++;
if(x==10){x=0;y++;if(y==10)y=0;}
}
}

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[Allen6502]

I dont see a question in your post:roll:

Was it working now after you modified your last program?:-D

Allen

 

[sayf alawneh]

I dont see a question in your post:roll:

Was it working now after you modified your last program?:-D

Allen

yes it is working well i just posted this thread to help those who need help in the future cause i really find it hard to find helpful info on the web sometimes ^_^

 

[Allen6502]

That's really Cool, Thanks.:thumbsup:

Allen

 

[sayf alawneh]

u wlcm allen

 

[milan.rajik]

Use interrupts for SSD. This way if you have huge code and/or delays in while(1) loop it will not affect the SSD display, else you will see flickering or even blinking of SSD.