PIC16F84 ISIS simulation does't work.

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mzypt

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pic16f84a lcd display .dsn

Hi,

I have a simple PIC16F84 LCD design which actually works with test board. I'm trying to get familiar with Proteus ISIS so I implemented the desing to it. The simulation seems to work (those blue and red dots are blinking) But I can't get anything to the LCD?

Thanks,
Mark
 

isis simulator


Hi "mzypt";
You have a problem about the 4bit LCD timings (see the screenshot jpg in the attachment). Examine the delays after any Nybbleout...

I don't have time enough now, however I had make for you a repaired working DSN project and included an other project (written by me), this is using also a 16F84 and a 4bit LCD interface. It is a "road crossing"demo project and using four LCDs at a time. Study its source and use it if you want.

Hope this will help.
zuisti
 

pic16f84 simulation problem on proteus

Thanks. I highly appreciate your effort.
I'll investigate those samples you sent me. Great stuff. And maybe I can edit worktimer code and get it work with ISIS. Althoug it works with real PIC.

Thanks
Mark Zypta
 

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