BS2 interfacing with MAX6979

Crux

I have already posted the same question in BS2 Serial Clock topic but I guess it is better if I changed the topic inorder to get pros to peep in my query.

I have a problem regarding interfacing BS2 and Maxim's MAX6979 chip. I wrote already a code and I think it is perfectly running. I have no idea why the MAX6979 doesnt even make one of the 7 segment Lit when I am expecting all the outputs to be all high. I have tested my LEDs and all of it is functioning well. I dont think the problem is in my Basic Stamp code. Should I consider clock timing in SPIs?I am a completely nwebie in SPIs so please help me with this.

I have attached below a diagram w/c I know all of you would understand but just bare with it because as I said I'm a newbie..Also the codes

Crux

I forgot to mention that I hardwired DP into 5V+ to make sure that it is functioning.

Zoot

See the original thread. Presuming that you wired the \OE pin of the driver to ground (I don't see pin numbers on your schematic), then I would remove or greatly reduce the pauses in your code. Remember that your driver has a fail-safe -- if no SPI activity is detected for >= 1 second, then it shuts down (turns off all LEDs). You have 1.5 seconds of pauses in your code.

http://forums.parallax.com/showthread.php?p=632683

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When the going gets weird, the weird turn pro. -- HST

Chris Savage

Yes, please stick to the original thread for replies and follow-ups.

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Chris Savage
Parallax Tech Support