HP Forum Archive 21

[ Return to Index | Top of Index ]

Entering 34s SAM-BA bootloader without Erase button. Message #1 Posted by Harald on 3 Mar 2012, 2:56 p.m. Since I am working on the USB adaptor for the calculator (and that won't have an erase button), I thought I'd try and not use the erase button on my cable for reflashing to see how this is done. I have tried to enter the bootloader by pressing ON+S+S as descreibed here. But didn't have any success. Has this changed or am I missreading something? I have pressed and held "ON", then pressed and released "S" (or 6) and pressed and released "S" again. Since nothing happend I did a reset. But after turning on the calculator powered up as normal.

Re: Entering 34s SAM-BA bootloader without Erase button. Message #2 Posted by Marcus von Cube, Germany on 3 Mar 2012, 3:04 p.m., in response to message #1 by Harald You missed a prerequisite: please press ON+D once before the attempt to switch to the boot loader! This is a precaution because otherwise it would be too simple to get into SAM-BA mode and without the cable you're stuck.

Re: Entering 34s SAM-BA bootloader without Erase button. Message #3 Posted by Harald on 3 Mar 2012, 3:10 p.m., in response to message #2 by Marcus von Cube, Germany Oh, that's why :) Now it worked. Cheers, Harald

Re: Entering 34s SAM-BA bootloader without Erase button. Message #4 Posted by sylvandb on 4 Mar 2012, 1:33 a.m., in response to message #1 by Harald Quote: Since I am working on the USB adaptor for the calculator (and that won't have an erase button), I thought I'd try and not use the erase button on my cable for reflashing to see how this is done. Why no erase button? Doesn't it just connect a couple of pins on the calc connector?

Re: Entering 34s SAM-BA bootloader without Erase button. Message #5 Posted by Harald on 4 Mar 2012, 3:03 p.m., in response to message #4 by sylvandb Quote: Why no erase button? Doesn't it just connect a couple of pins on the calc connector? Yes, it is just one connection. However this USB adaptor is supposed to be integrated into the calculator. Space is quite tight and I don't want to use more parts than necessary. And since the button would only be used once, I don't think the adaptor needs one.

[ Return to Index | Top of Index ]

Go back to the main exhibit hall