Post Reply 
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??

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.


Kind regards,
Find all posts by this user
Quote this message in a reply
Post Reply 

Messages In This Thread
WP34s flash technical erase procedure - MarkHaysHarris777 - 01-28-2015 03:02 AM

User(s) browsing this thread: 1 Guest(s)