50MHz Frequency Counter using PIC16F877A

[shahzadali]

Problem in Practical Implementation of 50MHz Frequenct Counter (PIC16F877A)

Hello guys!

I have problem in my project: "Digital Wave Frequency Counter Using PIC16F877A". Its simulation runs very well but the problem arises when i practically implemented the project in the Lab. There is no output on the LCD instead of the glowing dot matrices whereas the microcontroller is alive as indicated by the status LED :?: The code files (microC+asm+hex) and schematic view (pdf) of the project is attatched as below

View attachment 50MHz_frq_count.zip

Simulation Done: Proteus - ISIS 7 Professional
Coding: micro C v8.2.0.0

Some of my colleagues are saying that it is due to the code which is written in microC and they are also suggesting me to rewrite the code in CCS PCWH which works correctly for the other project's groups :sad: Kindly help me in this critical situation. I shall be very thankful to you!

 

[georgz]

The initialization of the LCD is probably wrong. Here you are!

 

[shahzadali]

The initialization of the LCD is probably wrong. Here you are!

I have changed the pin configurations which were given in schematic diagram in order to use the microcontroller board already interfaced with LCD (provided in the Lab). So, please consider the new configurations as given:

View attachment freq_count_lcd.PDF

 

[cubanflyer]

I have always found this page good for the LCD info **broken link removed**