Hi, Is there a way to determine if a PIC is damaged? On two PIC's I have the following symptoms: - When I put it in programming mode I can read from it (can verify that = the chip id is a 16f628). - I cannot write anything to it. (writing and then verifying the written data always fails) - I have three 16F628's. Two out of the three always exhibit the above behaviour, the other one works fine. - This started to happen after trying to build a wisp628 on stripboard (which I probably messed up, its my first stripboard project ;-) Before trying to use the 'new' wisp628 all the PIC's worked fine. I'm still = having problems with this programmer, but the original one I built on = solderless breadboard still works fine and that=92s the one I'm using for the above tests. PS: Yes, I'm going to order a Wisp628 kit from Wouter as soon as I sort = out method of payment from South Africa ;-) -- Andr=E9 Miller=20 -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads