You answered a lot of questions I had too. Thanks for the help.
Where is a good place to get a JTAG for a 301?
Ed
"Clement" <
cl...@kadiddle.org> wrote in message
news:te1fbukh7o7hedgqa...@4ax.com...
> <snip>
>
> go to
www.bpsoft.com get a copy of HexWorkshop 3.11
> it's easy
>
> Get a copy of JKEYS 1.3.1 or later from
www.dishmod.com or
>
www.sattech.net>
> Build a JTAG interface or buy one. If you build one, be careful and
> connect it correctly.
>
> The 301 has two IC's to save, IC 22 and IC 23.
>
> Using JKEYS, connect to the 301 for READING.
>
> The start address for IC22 is 1FE0 0000 -- the read length is 200K
> bytes
>
> The start address for IC23 is 1FC0 0000 -- again 200 K in length.
>
> Save each bin as a separate file. (One of the IC's is barely used, but
> save it anyway.
>
> The IRD # location is 0x1FFFC0
> The boxkeys location is 0x1FFFC4
> The BS (bootstrap code) location is 0x1FFFA0
>
> The 301 JTAG interface is slightly different for the 301, everything
> is one pin offset from the others. Look for the JTAG how-to and JKeys
> how-to and JKeys FAQ at
www.sattech.net>
> Do a lot of reading before loading.
>
> To PROGRAM a 301, you need the program wall.exe - again available at
>
www.sattech.net or
www.dishmod.com>
> get all that and call us back....
>
>
>
> The 301 has really TWO bin files, you get to save two TSOP images.