Hi Jan-Erik, Maybe I have something good for your peace of mind... Jan-Erik S=F6derholm XA (TN/PAC) wrote: > I just downloaded the latest b452-1.hex from Wouters > "Blink-a-LED" page, and I get the same result. > The 1320 programs "OK,fail,OK,fail,OK,fail..." *if* > I power of between each run. As a test I repeatedly programmed my F1320 and guess what: it fails *sometimes* (approx. 1 in 5 times), and in that case also with verify at address 0. I did not power-off/on between runs, and used=20 Wisp628 with firmware 1.09 with my own XWisp2. Then I tried an 18F2320, which is the closest I have to the 18F1320 (I=20 think), and had not a single failure! So the F1320 seems to be somewhat 'special'! BTW My 18F1330 is rev. 02, my 18F2330 is rev. 03.... Regards, Rob. --=20 Rob Hamerling, Vianen, NL phone +31-347-322822 homepage: http://www.robh.nl/ -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu