[PIC] driving CA seven segments

[malik_zohaib]

Hi guys.
I need help in driving CA 7-seg. Me using pic18f452 and code from this site(given at end):
http://extremeelectronics.co.in/mic...ment-displays-–-pic-microcontroller-tutorial/

I have to change the code for CA, but the main problem is driving 7-seg using PNP transistors. Proteus is displaying all 8s, but by changing transistor type to NPN it is simulating well. But its not working in hardware????????
Please help me.

Regards.

 

[malik_zohaib]

Without transistors its working well but with very low brightness....Any suggestions ???????

 

[#MAAM#]

If you connect your hardware as site given it should working in hardware.

 

[malik_zohaib]

CC 7-sehment is working well, but i am using CA, which is not working well.

 

[BradtheRad]

CC 7-sehment is working well, but i am using CA, which is not working well.

Did you invert the 7 signals going to the display?

 

[malik_zohaib]

yes i did. only simulation working (for npn transistors not for pnp?????), not the hardware????

code and simulation.View attachment digg.rar