max7219 problem

hisham.i · Joined: 22 Aug 2010 Posts: 43

Hello,
I am trying to use max7219 driver to drive 8 by 8 matrix using pic16f877.
I made a circuit in Proteus to simulate my program but nothing happened to the outputs of max7219.
This is my code

John P · Joined: 17 Sep 2003 Posts: 331

Is this a joke?

Please go to the data sheet of the MAX7219. What do you see under the heading "Serial-Addressing Modes"?

bkamen · Posted: Thu Oct 21, 2010 12:34 pm

PCM programmer · Joined: 06 Sep 2003 Posts: 21708

You need a driver for the Max7219. Look in the CCS Code Library forum
for this. Always search the code library and the regular forum for code
before asking for it. Usually, there is some sample code.

http://www.ccsinfo.com/forum/search.php

temtronic · Posted: Thu Oct 21, 2010 1:29 pm

Shows you how 'brainwashed' people can get....
To me 'serial' meant 20mA current loops for TTY ( yes, ASR33 teletypes),then 'serial' meant 60mA loops for my remote energy control systems.
Nowadaze ,everyone figures a PC serial port is 'the' standard, although I've never figured out WHY xmt and rcv pins were swapped. Makes us old guys have to think when we make our cables up....

oh well....

soon 'serial' will just mean USB.......arrgh.....