brenner burner mod for pic16f84 and pic18f425

[mikee]

hi all.

I just threw a burner together: got Brenner 18 and burned a bootstrap loader into a pic18f425, then (using Brenner 44) burned a pic16f84 with a test prog.

Glad to report all was perfect from start to finish. Works great at full speed.

No printed board - just a quick pin to pin hard wiring, scrap of perf board, and wired using some strands of recycled hard-drive flat ribbon cable (the fine-single stuff).

Recycled a 25 pin D plug from an old printer cable, used just 1 ground (pins 14 to 18 all commoned to 1 wire), 4 Data and 1 Ack.

No screen, but short cable (100 cm approx).

Not happy with having to readjust MCLR voltage every time I change from 18F452 to 16F84 so added attached mod.

Note: I used 4k7 presets recycled from old Sony CD drives. (My stuff is always recycled except for the PICs of course. (anyone know of a source yet?)

Hope this is of some use. cheers all and thanks.

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