Re: TI-H: ROM Dump

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Re: TI-H: ROM Dump


well, to get back to the rom stuff, and seeing as how i'm pretty much a connesieur of them, AND i have the ti gl, just use randy gluvna's romdump.zip proggie... it has a dos receiver for the ti gl, and all you do is send the rom8x.8x(p/s) file to the calc and run both.

-Greg

--

On Tue, 9 Feb 1999 23:34:28    Grant Stockly wrote:
>
>>On Tue, 9 Feb 1999, Daniel E Walker wrote:
>>
>>> I'm new on the list, so I'm sorry if this one's horribly off topic.
>>> What's a good way to go about getting a ROM image from a TI-86 when
>>> you're too lazy to build your own cable and you're stuck with the TI
>>> Graph Link? The TI software doesn't seem to have a provision for that,
>>> or receiving backups, another thing I'd like to be able to do.
>>
>>TI won't be likely to make available any software capable of receiving a
>>ROM dump, because the ROM is proprietary stuff and they probably wouldn't
>>like Casio or somebody to disassemble it and make a clone using TI
>>routines.
>>
>>But you can probably find a ROM dumping program from TIcalc.. Typically it
>>would be a combination of an assembly program to run on the calc, and a
>>program to run on the computer to receive data through the serial port.
>>
>>The program on the calc would simply step through the entire memory space
>>of the calculator (well, the ROM space anyway.. not much point in going
>>through the user RAM) and send each byte through the link port. Not a
>>particularly difficult program to write, but I don't have an 86 to do it
>>with.
>>
>>> A while ago I seem to remember there being a project (for 85's I
>>> think) about an external memory bank... think it was based on a flash
>>> memory type system. Anyone remember/have any pointers to that?
>>You're probably referring to the Expander SF by Mel Tsai? The project did
>>work (I built a few myself) but National Semiconductor sold out their
>>flash memory business to Toshiba, and they decided to discontinue the
>>chip. Nobody has produced a derivative work using a newer chip (that I'm
>>aware of..) Oh for the days of high school, when I had time to play with
>>this kind of thing.
>
>Using a 2 diodes, in theory you could MOSI and MOSO to the same pin, pull
>CS low, and use SCLK on the other pin of the calc.  At the least, it would
>only burn up a flash chip.
>
>I'm going to try it.
>
>


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