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

Hello Ryan,

Have you done any other projects with the SX chip to confirm your setup it working?  The SX processors are pretty robust chips and shouldn't be this much trouble to get working.

To check out your SX28 to see if it is running without the SX-Key attached I would make a tiny program to blink an LED and program that into the chip.  Let add an LED and current limiting resistor on one of the unused pins.  If you use SX/B you should be able to try the different clock settings and if you use the PAUSE to define the delay it should work the same no mater what frequency you select.  A short example is in the SX/B help file under PAUSE

Flash:
  DO
    LOW RC.0
    PAUSE 1000
    HIGH RC.0
    PAUSE 1000
  LOOP

If the LED blinks then you know the processor is working and that your clock is working too.   As someone mentioned make sure you program the chip before removing the key otherwise it will leave some of the debugging code in the chip.  If this doesn't work then we'll need to troubleshoot your setup to see where the issue is.  Once that is resolved then we can see about moving on and getting it to work with your servo controller.

Robert

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


You can view the post on-line at:
http://forums.parallax.com/forums/default.aspx?f=7&p=1&m=342774#m344106

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

The Parallax Forums are powered by dotNetBB Forums, copyright 2002-2009 (http://www.dotNetBB.com)