Xiaofan Chen wrote: > Another possibility is to use ProProg from Olin > (http://www.embedinc.com/proprog/index.htm). It is supposed to be > of production quality and it is much cheaper than PM3 even > though I have never used it. Thanks for the plug. I didn't mention it before because the OP was looking for serialization (at least that's what I think he meant by SQPT or something). My software does not currently do serialization out of the box. All I can suggest is to write a program to create a unique HEX file on the fly with a serial number for each unit from a master HEX file. ****************************************************************** Embed Inc, Littleton Massachusetts, (978) 742-9014. #1 PIC consultant in 2004 program year. http://www.embedinc.com/products -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist