See: General Error Detection and Correction.
But except for CRC, these methods are a bit hard to implement on a PIC, even an '877. CRC has been done.
Ken's serial port multiplexer is a great example of CRC use, in that case for testing external RAM but the idea is the same.
has anyone written a routine for checking the ram memory onboard of a pic? identify and mark a 'badram' address and exclude this somehow in the cblock section for memory allocation? the application would be for batch production where you would not want to check manually every part and adjust the cblock for every device programmed. anyone? Thanks for the help+
|file: /Techref/microchip/memerr.htm, 1KB, , updated: 2009/9/9 10:57, local time: 2017/11/17 22:48,
|©2017 These pages are served without commercial sponsorship. (No popup ads, etc...).Bandwidth abuse increases hosting cost forcing sponsorship or shutdown. This server aggressively defends against automated copying for any reason including offline viewing, duplication, etc... Please respect this requirement and DO NOT RIP THIS SITE. Questions?|
<A HREF="http://www.piclist.com/techref/microchip/memerr.htm"> PIC Microcontoller Memory Methods for Error Detection and Correction</A>
|Did you find what you needed?|
PICList 2017 contributors:
o List host: MIT, Site host massmind.org, Top posters @20171117 RussellMc, Van Horn, David, James Cameron, Sean Breheny, alan.b.pearce, IVP, Neil, David C Brown, Bob Blick, Denny Esterline,
* Page Editors: James Newton, David Cary, and YOU!
* Roman Black of Black Robotics donates from sales of Linistep stepper controller kits.
* Ashley Roll of Digital Nemesis donates from sales of RCL-1 RS232 to TTL converters.
* Monthly Subscribers: Gregg Rew. on-going support is MOST appreciated!
* Contributors: Richard Seriani, Sr.
Welcome to www.piclist.com!