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AT89C5131, problems with X2 Mode

Hello,

I have a program in C and ASM which works properly on the AT89C5131 from Atmel. But I have a weird problem when I've try to use the X2 Mode without the peripherical (still in X1 Mode): The mode works it's nice and not the program and it is (quite) normal.But then when I want to rebuild the same programe except the lign,

MOV CKCON0,#OxFF;

the program doesn't work the same and bugs when specials functionss are called (just for information the function use the timer 0 as extern interrupt). I've tried lots of things without results, and the worst thing is that this problem is repeted with each microcontrollers....All the at89c5131 I had are now useless and I still don't know where does my problem come from!!! It must be from the program but I am not enought proficient in it so....Please a reply!!! Thank you

0 Ian Gummer over 19 years ago

Did you check the latest errata? Atmel 6 clock devices seem to have a lot of problems associated with X2 mode, particularly when some peripherals are running in X1.
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0 civfrance mirador over 19 years ago

J'ai quelques documents qui peuvent t'aider....mais j'aimerai te les envoyer en privé..passe moi ton email......ou écris-moi dans mon mail mchicha_18@hotmail.fr
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0 damien boissat over 19 years ago in reply to civfrance mirador

Salut,

Je t'envoi mon e-mail et te remerciant bcq, car en ce moment j'ai aussi d'autres petits problemes avec ce microncontrolleur et il n'y a pas vraiment d'explication logique.......donc peut-etre que je vai apprendre que c'est un bug!! meme si ca 'arrange pas trop ca m'evite de lire et relire pleins de trucs...

Donc voici mon e-mail: dambsst@hotmail.com

Merci encore j'attend avec impatience,

ciao ciao
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0 erik malund over 19 years ago in reply to damien boissat

Atmel i seks time operation er et stykke lort.

The solution to your problem is in the above

Erik
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