In SX Microcontrollers, SX/B Compiler and SX-Key Tool, tdg8934 wrote:

All I mean by "working as expected" was that it should have worked as originally written. 
 

As it stands right now ALL HARDWARE AND SOFTWARE IS NOW WORKING on the PDB:

 

1. The BS2 to 8255 code works (as it always has) - (attached code)

 

2. The SX-28 to 8255 code works (as it now does - and probably should have always worked - but I still am not sure why it did not originally on my PDB). It is more simplier now than the BS2 to 8255 is (no PAUSE statements between HIGH and LOW statements as originally assummed would be needed). (attached code)

 

3. I wrote "new" SX-28 to 8255 code that works with (2) 8255's to a single SX-28. It could also be easily converted back into BS2 code if needed also. However with the addition of buffer chips to the SX-28, it is possible to have up to (8) 8255's to a single SX-28 (192 outputs!!!!). (attached code)

 

Thanks!

I am using the 4 MHz internal clock in the SX-28 not 50 MHz.

---------- End of Message ----------


You can view the post on-line at:
http://forums.parallax.com/forums/default.aspx?f=7&p=2&m=150716#m153208

Need assistance? Send an email to the Forum Administrator at forumadmin@parallax.com

The Parallax Forums are powered by dotNetBB Forums, copyright 2002-2006 (http://www.dotNetBB.com)