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MC68hc705JJ7CDW  OPT bit -how to change?

Question asked by Witold Brożewicz on Jul 31, 2017
Latest reply on Sep 21, 2017 by Witold Brożewicz

Hello . I have problem with controller MC68hc705JJ7CDW . I would like programing that IC. exactly sixth bit (mean: OPT bit ) in address 1FF0 . Problem is in that so any programmer cant do it . Probably the procedure of programming of that (bit OPT ) is multisteping . How can I mendit ? Few times I was try programming that controller without satisfaction ..(Its One time programming unit -- so after programming without results MC68hc705JJ7CDW go to junk ... Thanks for helping hand ...Regards from Poland

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