I am talking about ICD2 don't support 9V VPP. The PK2 and our BB0703 can adjust Vpp down to 9V, but they don't support ne= w 18FxxKxx chips. =A0 Funny N. Au Group Electronics, http://www.AuElectronics.com http://www.AuElectronics.com/products http://augroups.blogspot.com/ ________________________________ From: Forrest Christian To: Microcontroller discussion list - Public. Sent: Tuesday, September 6, 2011 5:47 PM Subject: Re: [PIC] PICkit3 status? I'm not sure which PICKit2 you have, but mine DEFINITELY supports the=20 8.5V Vpp... Just measured with a voltmeter. Is this a third party one with fixed Vpp? -forrest On 9/6/2011 3:00 PM, Funny NYPD wrote: > Our recent experience with PK3 on18FxxKxx parts is negative. > > Though the MPLAB claims ICD2 supports 18FxxKxx parts, but it will need ci= rcuit modification on application boards because > ICD2 circuit doesn't support 9V VPP (special requirement on new 18FxxKxx = parts), this leaves us no much choice but get new programmer, either PK3 or= ICD3. > > Luckily, we bought an ICD3 at the same time with a PK3 (just in case PK3 = doesn't work as it claimed).=20 > > The ICD3 is fast and works every time. The PK3 simply cannot link to the = target board at all. Both use external powered boards. > > Not sure if we got a brand-new defect PK3 or there are some tricks needs = being implemented. > > For aged parts, we use in-house developed BB0703 (A enhanced PK2 product)= .. For new parts which will not be supported by PK2, we will stick with ICD3= .. > And our 50 mil pogo-pin cable works very well on ICD3 too. > >=A0=20 > Funny N. > Au Group Electronics, http://www.AuElectronics.com > http://www.AuElectronics.com/products > http://augroups.blogspot.com/ > > > ________________________________ > From: Forrest W Christian > To: Microcontroller discussion list - Public. > Sent: Tuesday, September 6, 2011 4:07 PM > Subject: [PIC] PICkit3 status? > > I was wondering if the PICkit3 has grown up yet and overcome it's > weaknesses as compared to it's older sibling the PICkit2.=A0 For those o= f > you who might have missed it, the PICKit3 was a bit, well green, at > release, but I haven't heard how it is behaving now its a few software > revisions old.... > > -forrest --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .