Sunday, September 4, 2011

(PIC16F877A) 7 Segment


Let us have the presentation first


Now we have 8 7-segment display.
How many microcontroller pins are required to interface it.
You might me thinking it would be 8x7=56. Microcontroller don't even have that many I/O.
So we would go ahead for multiplexing which would utilize just 16 I/O lines

Refer to schematic below


Now i have 2 codes for this that explain different cases when you work on it 


You can find specific details of compiler and controller on the page Microchip PIC

You can down load code from here 
1) here
2) here

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