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http://vasco.gforge.enseeiht.fr/index.php?article=Odyssey.html 21:13 (tech_notes#233)

cat and purrr part three 20:44 (tech_notes#232)

1) The problem is that the PICs configuration bits are not being cleared and reprogrammed.

./readcfg (after ./erasepic) always reads same data

It seems to erase we need to bring MCLR from GND to ViHH (12-14v)

(just connecting it to ViHH, well of 12v from 9v and 3v batteries in series, doesn't work.)

see:

http://web.interware.hu/lekovacs/PIC/index.html

and:

http://www4.tpg.com.au/users/talking/Burning%20a%20Chip_Page1.html

also length of parallel port cable may be an issue...