BS2 to flash memory integration
Some of the recent talk about data storage has me wondering how hard it would be to integrate a BS2 to a 1MB (or greater)·flash chip without expensive intermediary devices.
Based on what I've seen in some specs, I'm assuming that the typical flash chip has parallel address and data ports, which are set prior to a write cycle.· Due to the number of pins, it's impractical to hook it up directly to a BS2.· Could you use serial-to-parallel converters to make it practical?· Is there any other limitations (other than pin count) that would prevent interfacing a BS2 to flash memory?
Thanks!
Dave
Based on what I've seen in some specs, I'm assuming that the typical flash chip has parallel address and data ports, which are set prior to a write cycle.· Due to the number of pins, it's impractical to hook it up directly to a BS2.· Could you use serial-to-parallel converters to make it practical?· Is there any other limitations (other than pin count) that would prevent interfacing a BS2 to flash memory?
Thanks!
Dave
Comments
You might consider having an 8bit counter for the lowest address pins, though, particularly if you plan to read/write to consecutive adresses. (The converters on the higher address pins can then be used for 'page' addresses)
So, the only problem I can think of is the timing of the write pulse if it uses anything like that.
(I haven't worked with FLASH chips, only EPROMS )
Dave please e-mail me at
jose55@bellsouth.net
about a moard you made for me, and I want you to make me another one....
please contact me , I can't find you anywhere.
Jose
Go to the member list and look him up...then you can private message him!
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Steve
http://members.rogers.com/steve.brady
http://www.geocities.com/paulsopenstage
"Inside each and every one of us is our one, true authentic swing. Something we was born with. Something that's ours and ours alone. Something that can't be learned... something that's got to be remembered."
but I know he hangs out here...
Jose