The 16F818/9 chips allow the /MCLR pin to be configured as I/O (actually
I only), yet the programming specifications do not mention the
Vpp-before-Vdd sequence used by other chips that allow /MCLR as I/O. I
have had some trouble programming a 16F819 when the /MCLR was configured
as I/O, which was NOT resolved by using the Vpp-before-Vdd sequence. Any
similar experiences and/or solutions from other programmer makers?

Wouter van Ooijen

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Van Ooijen Technische Informatica: www.voti.nl
consultancy, development, PICmicro products

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