Subject:
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Re: Simtek memory
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Newsgroups:
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lugnet.robotics.handyboard
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Date:
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Tue, 23 Mar 1999 19:58:37 GMT
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Original-From:
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Duncan Orthner <(orthner@idirect.com)SayNoToSpam()>
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Viewed:
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961 times
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At 12:02 PM 3/23/99 -0500, Bruce Moore wrote:
> A few weeks ago Duncan Orthner mentioned the Simtek memory chips on the HB
> newsgroup. They sounded like a good idea so i tried them. They work very
> well.
[short snip]
Problem is the Simtek chip needs a few
> milliseconds between the time the voltage is low enough to cause a mem dump
> to EEPROM and the time it looses power comletely. I just put a 10 mF
> capacitor accross the plus and minus points that the battery wires connect
> to. That seemed to make it happy.
Bruce, they *do* work well. I haven't had to add any caps. I just
plugged it in and it worked 8^]. And they don't collide with the LCD or
exp. board like the Dallas battery backed chips. Really the best of all
possible worlds...
Regards, Duncan
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Message is in Reply To:
 | | Simtek memory
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| A few weeks ago Duncan Orthner mentioned the Simtek memory chips on the HB newsgroup. They sounded like a good idea so i tried them. They work very well. But..... The HB may need a little modification to make them work rite. When the HB is powered, (...) (26 years ago, 23-Mar-99, to lugnet.robotics.handyboard)
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