Use HP serial interface to save/restore programs?
#1

I searched the forum for this without success, so:

Can the HP serial interface cable be used to save/restore programs on the HP 30b without harming the existing firmware?

Thank you in advance,

Harry

#2

No, you can only do this with the 34S firmware in place, not the original from HP.

There are provisions for supporting the serial I/O port in the firmware but this is not documented for the general user. It's more of a testing environment for HP. I'm pretty sure you cannot get to the programs or registers from the outside this way.

Once you press the Erase button on the cable the firmware is toast. Sam-Ba.exe has the nasty habit of clearing the RAM, too, so all your data is lost if you use this button.

Edited: 1 Oct 2011, 4:45 p.m.

#3

So then you really want to turn a 30b into a 34s as soon as you get one? Then you can do all the cool stuff?

#4

Cool stuff indeed. :-)

#5

That was the reason why we made it :-)

#6

Cool stuff aside, for the original 30b firmware there's the desire to offload programs to maintain a program library greater than the amount of memory available. That is, without having to continually erase and tediously key in.

If the 30b had a USB port or an SD slot...... but it doesn't.



Possibly Related Threads…
Thread Author Replies Views Last Post
  WP-34S (Emulator Program Load/Save) Barry Mead 1 1,763 12-09-2013, 05:29 PM
Last Post: Marcus von Cube, Germany
  DIY HP 30b WP 34s serial flash/programming cable Richard Wahl 2 2,455 12-04-2013, 11:14 AM
Last Post: Barry Mead
  HP Prime: Lists in programs Alberto Candel 7 3,456 12-04-2013, 02:16 AM
Last Post: Alberto Candel
  HP Prime: matrices in programs, in need of help Alberto Candel 9 3,174 11-26-2013, 01:33 AM
Last Post: cyrille de Brébisson
  Grouping programs on the HP Prime Michael de Estrada 11 3,661 11-04-2013, 01:38 PM
Last Post: Damien
  HP PRIME: command to read the SERIAL ? Joseph Ec 9 5,702 11-01-2013, 12:43 AM
Last Post: Joe Horn
  HP Prime: CAS Variables - -How to save? Helge Gabert 2 1,754 10-27-2013, 11:26 PM
Last Post: Helge Gabert
  HP Prime Save Power Turn Off Not Working Timothy Roche 12 4,077 10-27-2013, 01:41 PM
Last Post: Michael de Estrada
  How to save the definition of a CAS program or CAS function ? dg1969 3 1,552 10-19-2013, 01:48 PM
Last Post: dg1969
  Transfering HP-85A Programs Gerry Schultz 5 2,561 10-17-2013, 12:30 PM
Last Post: Philip Reagan (Texas)

Forum Jump: