Hi Piclisters, Has anyone successfully compiled a hex file for any of the 18Cxxx parts that includes embedded ID information? I cannot make heads nor tails of the cryptic information in the MPASM guide and I everything I try results in an error message saying the ___IDLOCs directive is not support by this processor. I am going nuts. Can anyone shed any light on this? Regards, Jim Robertson NEWFOUND ELECTRONICS ________________________________________ Email: newfound@pipeline.com.au http://www.new-elect.com MPLAB compatible PIC programmers. ________________________________________