Quote from: DJ Omnimaga on December 24, 2013, 01:15:44 am

Thanks to bb010g for posting this link on IRC http://ried.cl/en/franqueando-los-secretos-del-hardware-mediante-ingenieria-inversa/

Maybe that could be useful for Prime hacking?

WOW. This could be the breakthrough. For one, we could watch the USB port when, say, a new firmware is being installed...

And this article also seems to imply that HP ignores CRCs when transferring. If they ignore checking with firmware, our job could be a lot simpler.

Well, http://tiplanet.org/forum/viewtopic.php?f=55&t=13329&lang=en is older and directly better for "hacking"

Nothing with Prime-tinkering done since, though, if I'm not mistaken (except transfers)

You mean the pins on the board marked with rx and tx?

I just realized something. Recall the SDK OS version, and how it came with usbtool.exe to manually upload firmware to it? Well, I wonder if it'll take modified firmware files without complaint.

Yeah Keoni that was the idea. On the Nspire there's some info output through rs232. Also it allows one to flash the boot2.
Iconmaster, I think TIPlanet managed to change some OS strings this way. My idea was to use this to flash custom bare metal code and see if it works. If so we could write a custom OS loader and start porting Linux.

Once I get one I'm interested. Tiplanet has shown it's possible to modify the firmware easily so I plan to try and run bare metal code at first.

I probably won't try to hack it since I am not into low level and hardware stuff but if I find anything interesting I'll share it.

Also if you get a prime I hope you do code a bit for it too, unlike certain other Omni users

Hello,

Nothing on RS232, sorry...
No buffer overruns that I know of (else I would have fixed them...)
If any of you is interested in the data protocol between calcs, just ask...

Cyrille

Welcome to Omni !

Also, are you from HP or did you try that yourself ?