Hacking HP Prime G2

[compsystems]

Source:
https://tiplanet.org/forum/viewtopic.php...73#p238323
https://tiplanet.org/forum/viewtopic.php...17#p238317

[Jean-Baptiste Boric]

Before anyone starts to panic: no, I'm not doing that to nuke the exam mode.

And yes, that horrible mess of a JTAG contraption does work, I did manage to turn on the LEDs through it. However, so far I haven't figured out how to run U-Boot on this thing.

[sunhp]

Excellent !

Didn't know about the better specs of Prime G2 and I wish we had SATURN emulator on it, the same emulator that is embedded to HP50 will be dope.

[Claudio L.]

Nice pictures and nice work (not the wire mess, the fact you were able to get JTAG working).
I'll be following your progress on this one.

[cyrille de brébisson]

Nice work!

[CyberAngel]

More pictures, please

[eried]

Awesome!!!

[Jean-Baptiste Boric]

(01-07-2019 09:37 AM)CyberAngel Wrote:  More pictures, please

There's really not much more to show here other than what was already posted at TI-Planet (formal news: https://tiplanet.org/forum/viewtopic.php...23#p238323; progress thread: https://tiplanet.org/forum/viewtopic.php?f=69&t=22127).

Progress is kinda slow. I was hoping I could bootstrap U-Boot without too much trouble thanks to the JTAG probe, but the calculator is not being very cooperative about it. I don't have enough data to pinpoint a root cause yet, but I'm starting to think something about my setup is fishy.