I am just guessing. Wisp628 is one of the the easiest to build. Xwisp2 is the best program to control a Wisp628. You can use your JDM to write a 16F628/628A and then use it to build a Wisp628. Regards, Xiaofan On 10/1/05, David de Regt wrote: > What programmer would you suggest? I somehow doubt the programmer is > the issue here, because it does the other chip fine. Is there any > reason the programmer would work totally fine on one chip and not on > another? > > -David -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist