Author Topic: 89C668 6clock vs 12clock  (Read 4172 times)

adriano

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89C668 6clock vs 12clock
« on: October 03, 2005, 06:00:59 pm »
How do you select 12clock mode through flashmagic for this processor?

erikm

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Re: 89C668 6clock vs 12clock
« Reply #1 on: October 04, 2005, 05:41:15 am »
you don't.  It can only be done in a parallel programmer the 66x are still 'H' types.  Anyhow what's the problem using 6 clock?

Erik

Rons

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Re: 89C668 6clock vs 12clock
« Reply #2 on: October 04, 2005, 10:35:08 am »
If you do select the 6 clock mode you can not ever use the device in
12 clock mode again.

adriano

  • Guest
Re: 89C668 6clock vs 12clock
« Reply #3 on: October 04, 2005, 12:51:42 pm »
Can you recommend a programmer?

By the way, we are using a 32MHz oscillator because of requirements of other functionality on the board.

erikm

  • Guest
Re: 89C668 6clock vs 12clock
« Reply #4 on: October 04, 2005, 01:22:49 pm »
the best (and expensive) will be BP micro
for lower cost check needhams

I can not recommend Xeltek, they discontinue support and say "you need an upgrade" after only 2 years.

there is a brand "TOP" sold by a canadien on the web some have said they have it and I have heard nothing bad.  it is dirt cheap.

Erik