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WP34s flash technical erase procedure
01-28-2015, 03:02 AM
Post: #1
WP34s flash technical erase procedure
I have a question (am confused) about the the erase procedure. Does the erase strobe actually erase anything? It seems to me that the 'flash control sequence' following:

'on' 'hold erase' 'reset' 'on' 'release erase' 'reset' 'on'

... places the 30b in a 'receive' state, ready (as it were) to receive the MySamba send??

Is my understanding correct? comments??

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also, if we don't actually send, is the firmware for the 30b still there?

One more, are the erase and reset pins TTL compatible ? I am thinking about making cross wired nand gates (flip flop) for contact debounce and hold... will the erase | reset work correctly if a standard TTL output from a nand gate strobes the positive signal on erase, or the ground shot on reset?

Do you folks think that the positive standard voltage of a TTL inverter will have enough current to power the calculator? ... power the flash?

Thanks in advance for the discussion.

marcus

Kind regards,
marcus
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WP34s flash technical erase procedure - MarkHaysHarris777 - 01-28-2015 03:02 AM



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