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tlindner #43196 07/25/08 05:57 PM
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Originally Posted By tlindner
The data manual for the tms7xxx series mentions no ROM reading magic. For the TMS7040 inside the CoCo's S/SC Frank Palazzolo removed the chip from the board and created a rig to trojan the ROM from the microcontroller.

I detailed it here http://groups.google.com/group/bit.listserv.coco/msg/091b018c65b82e8d


Hrm, does he still have that set up? Maybe it can be used to dump tms7041's as well.

I wonder what the 1 in 7041 means though; an additional feature, a special instruction, or protection of the internal rom?

I've added the tms7041 cpu to the exl100 and exeltel drivers plus placeholders for the undumped tms7041 roms.



Last edited by judge; 07/25/08 06:22 PM. Reason: added note about driver update
starlord #43202 07/25/08 08:45 PM
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Originally Posted By starlord
Oh, wow! I am now very hopelessly left behind as far as the technical expertise level is concerned.LOL


Why ask this, then?

Originally Posted By starlord
So how can we dump the TMS7041 bios? one can still find EXL100s so why is it so difficult?

judge #43203 07/25/08 08:52 PM
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Originally Posted By judge

I wonder what the 1 in 7041 means though; an additional feature, a special instruction, or protection of the internal rom?


The '1' means it has a real UART (rs-232) on chip.


tim lindner
tlindner@macmess.org
tlindner #43224 07/26/08 08:06 AM
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Simply because I never thought it would be so difficult. Another reason to bow to your efforts!

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