HP Forum Archive 20

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need the reprogramming cable for the 30b... Message #1 Posted by stacy_k on 7 Sept 2011, 10:07 a.m. hello, are the cables to reprogram the HP30b, still being distributed? (I need one...) Is mr. gene wright still the source for them? please help thank you (ps is there any description or schematic for what this cable is exactly, and how it works?)

Re: need the reprogramming cable for the 30b... Message #2 Posted by M. Joury on 7 Sept 2011, 10:11 a.m., in response to message #1 by stacy_k Try sending Gene an email through the forum.

Re: need the reprogramming cable for the 30b... Message #3 Posted by stacy_k on 7 Sept 2011, 10:19 a.m., in response to message #2 by M. Joury I tried to send him a mail but didn't get a response yet. Guess I'll wait a little bit more & maybe try again. thx

Re: need the reprogramming cable for the 30b... Message #4 Posted by gene wright on 7 Sept 2011, 10:59 a.m., in response to message #3 by stacy_k Hi. Don't think I ever got an email. Try again. :-)

Re: need the reprogramming cable for the 30b... Message #5 Posted by stacy_k on 7 Sept 2011, 11:27 a.m., in response to message #4 by gene wright Hi there (sorry for being a n00b) I tried again just now, did the mail make it to you? thanks again -stacy

Re: need the reprogramming cable for the 30b... Message #6 Posted by gene wright on 7 Sept 2011, 11:55 a.m., in response to message #5 by stacy_k Nope. Perhaps you have to associate an email with your user-name here for it to work? I have had no problems getting emails from many other cable-seekers here, so something else must be happening. Associate an email and let ME send an email your direction. Let's see if that will work.

Re: need the reprogramming cable for the 30b... Message #7 Posted by stacy_k on 7 Sept 2011, 1:06 p.m., in response to message #6 by gene wright Hello, I had entered an email & marked it for public, but I guess that didn't work (? ?) Anyhow I now entered my original email, that I used to register for the forum, and it should be public. Did it work? It's srkmz[ @ ]sentex.net -stacy

Re: need the reprogramming cable for the 30b... Message #8 Posted by Dan W on 7 Sept 2011, 8:28 p.m., in response to message #6 by gene wright Hi Gene, I've also tried to reach you thru the forum email without success. Wasn't sure if there was a problem, or your inbox was 500 deep. At any rate I tweaked my e-mail options and I tried again. Let me know if you didn't get it. thanks -- Dan

Re: need the reprogramming cable for the 30b... Message #9 Posted by Graham D. Wilson on 7 Sept 2011, 7:36 p.m., in response to message #6 by gene wright Hi Gene I'm also unable to send you emails through the forum. To make contact, could I ask you to send me a message instead? Ta Graham

Re: need the reprogramming cable for the 30b... Message #10 Posted by Marcus von Cube, Germany on 7 Sept 2011, 10:23 a.m., in response to message #1 by stacy_k Quote: ps is there any description or schematic for what this cable is exactly, and how it works? I don't have a schematic bu I know what the cable does. :-) It's a level shifter to adapt the 3V TTL level serial pins on the connector to valid RS232 levels suitable for a PC serial port. In addition it provides two buttons: a RESET button to reset the processor and an ERASE button which will erase the flash memory contents of the processor: Turn the calculator on, press and hold erase, press any key on the calculator.) Erasing the flash will make the SAM-BA boot loader active which will connect to the SAM-BA flashing utility. With the WP 34S firmware installed, the cable can be used to exchange data between the calculator and an emulator on the PC.

Re: need the reprogramming cable for the 30b... Message #11 Posted by stacy_k on 7 Sept 2011, 10:41 a.m., in response to message #10 by Marcus von Cube, Germany OK but there's no description anywhere, of what the guts of the cable actually are?

Re: need the reprogramming cable for the 30b... Message #12 Posted by Katie Wasserman on 7 Sept 2011, 10:55 a.m., in response to message #11 by stacy_k Here are all the details.

Re: need the reprogramming cable for the 30b... Message #13 Posted by stacy_k on 7 Sept 2011, 11:07 a.m., in response to message #12 by Katie Wasserman thank you

Re: need the reprogramming cable for the 30b... Message #14 Posted by Dominic Richens on 7 Sept 2011, 1:28 p.m., in response to message #12 by Katie Wasserman thanks! I've been looking for that.

Re: need the reprogramming cable for the 30b... Message #15 Posted by Gerry Schultz on 7 Sept 2011, 1:10 p.m., in response to message #10 by Marcus von Cube, Germany I assume that since there is an increased drain on the 30b's batteries when connected through the programming cable, that you would want to keep the connection time to a minimum?

Re: need the reprogramming cable for the 30b... Message #16 Posted by Marcus von Cube, Germany on 7 Sept 2011, 6:07 p.m., in response to message #15 by Gerry Schultz Since the cable contains a level shifter which is fed by the 3V pads on the calculator sockets, it draws power from the coin cells. This is true even with the calculator turned off. I measured a current draw around 4 mA.

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