Subject:
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nonvolatile memory
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Newsgroups:
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lugnet.robotics.handyboard
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Date:
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Mon, 8 Mar 1999 21:36:42 GMT
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Original-From:
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Russell, Casey <crussell@osec.com+stopspam+>
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Viewed:
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1504 times
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Does Anyone know how to modify the handy board so that when the battery
is disconnected the memory on the board is not lost?
In short I want the HB to have nonvolatile memory so that I do not have
to reload the pcode in bootstrap mode every time the battery is
disconnected.
Casey
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Message has 4 Replies:
 | | Re: nonvolatile memory
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| Just a thought, you could try one of Dallas Semiconductor's nonvolatile SRAM such as the DS1225Y Cheers, Ranjit (...) -- Ranjit Diol - COMPSys Dowagiac,Michigan e-mail: rsdiol@mich.com website: (URL) (26 years ago, 8-Mar-99, to lugnet.robotics.handyboard)
| | | Re: nonvolatile memory
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| (...) You can get a RAM Module with built-in battery. Don't remember the name but they are out there. (...) ---...--- Shoot-to-Win Protect the 2nd Amendment ---...--- (26 years ago, 8-Mar-99, to lugnet.robotics.handyboard)
| | | Re: nonvolatile memory
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| (...) Actually the DS1225Y is a 8Kx8 NVRAM chip. The correct Dallas part for the HB is a DS1230. Another option is the Simtek EEPROM backed (no battery) chips. They have the same package as a standard RAM chip, whereas the higher profile Dallas (...) (26 years ago, 8-Mar-99, to lugnet.robotics.handyboard)
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