At 11:33 AM 5/3/2003 -0400, John Nall wrote:
>Would anyone be willing to share a bit of source code with me, for driving
>three seven segment displays?

One easy way to do this, is to use a lookup table.
Take the digit you want to display, if needed, convert it to binary 0-F
Using this value, index into a table that will return the proper bits set
as "1" to turn on the appropriate segments of the display.
Since there are seven segments, you can use just one byte.
In the PIC, this is something like a jump to an address plus an offset (the
index value) and the table consists of RETLW instructions that are a return
from subroutine, with the W register loaded with some value

Seg_Table:
         retlw   0x11111110
         retlw   0x00000110
         etc

or something like that anyway. :)
I'm the resident heretic, I use AVRs

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