--_002_fcrfs9xdm6ln2skaterswarbrick_ Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Mike Hord writes: > IIRC LVP uses an alternate pin to the reset pin to activate reset mode, > removing the need for a high-voltage signal. > > Sounds like, in this case, RA5 is the pin used for that purpose. > > Mike H Ahah! Page 2 of http://ww1.microchip.com/downloads/en/DeviceDoc/41390D.pdf in fact. It didn't occur to me to check that document. Oh well, another gotcha to remember. Thank you very much for explaining what's going on. Rupert --_002_fcrfs9xdm6ln2skaterswarbrick_ Content-Type: text/plain; name="ATT00001.txt" Content-Description: ATT00001.txt Content-Disposition: attachment; filename="ATT00001.txt"; size=208; creation-date="Tue, 15 Jan 2013 11:57:21 GMT"; modification-date="Tue, 15 Jan 2013 11:57:21 GMT" Content-Transfer-Encoding: base64 LS0gDQpodHRwOi8vd3d3LnBpY2xpc3QuY29tIFBJQy9TWCBGQVEgJiBsaXN0IGFyY2hpdmUNClZp ZXcvY2hhbmdlIHlvdXIgbWVtYmVyc2hpcCBvcHRpb25zIGF0DQpodHRwOi8vbWFpbG1hbi5taXQu ZWR1L21haWxtYW4vbGlzdGluZm8vcGljbGlzdA0K --_002_fcrfs9xdm6ln2skaterswarbrick_-- .