>This thread has been extraordinarily enlightening to me, and I >may like to try to build my own variation on this, if I ever >get a chance, and if Herbert has no objections...certainly, >I'd never try to profit from his work! I would suggest trying to use one of the CPLD types that is RAM internally, and gets downloaded from external eeprom, rather than one with EEPROM cells. The PIC could then do the download at power up. One reason I see for going this way is saving the CPLD programming loop as a separate operation. I think the RAM types effectively use a JTAG port for loading as well though. >Thanks to all the PICListers for another extremely educational thread! Agreed. -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics