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

Problem is I'm not there to actually test the chip yet.

I've posted the data sheet. Interesting chip, seems to have an internal osc. Though it has connections for an external osc. An interesting side note, it has a output around 512hz. 512hz is perfect timing, any error of that is an error of timing. That can be corrected using the control bits. Makes me wonder if the SX can measure the difference to calculate the appropriate control bits for correction?

So on to the error. No external osc is used yet, using the sxkey usb. Using the same power supply on both. Doesn't matter if external circuity is used or not. The code seems to program, debug, just fine on the SX48 proto board. However on the SXtech board, it will program, debug up to the point of hitting the run/walk/step key on the debug screen, then unlike the sx48 protoboard, says "sleep".

The only code changes between the two is sx48 vs sx28 plus TURBO, STACKX, OPTIONX. I tried the sx28 without the TURBO, STACKX, OPTIONX  and it did the same thing.


I figure pin 1 on the m41t00 is the bottom, left most one. Using a cr2032 battery for backup, SDA and SCL are each tied to VDD via 4.69kohm external resistors.

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


You can view the post on-line at:
http://forums.parallax.com/forums/default.aspx?f=7&p=1&m=280245

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

The Parallax Forums are powered by dotNetBB Forums, copyright 2002-2008 (http://www.dotNetBB.com)