18 Dec
2005
18 Dec
'05
10:53 a.m.
I'm taking a stab at reverse-engineering a Toshiba "intouch" module
DT-1003. It's been
brought up here before (I got it from a list member). What is slowing
me down a bit is
the inability to find any data on the CPU... an Intel N82930A3. If I
understand things
correctly, it may be a variation of the 8051 microcontroller packaged
up with a USB core.
From tracing leads so far, the USB connector does go
right into the
CPU, supporting
the suspicion.
If I can't manage to unwind the protocol (it's about 10-11 years old
and not supported under any "modern" operating systems), I'm
contemplating removing the CPU and building my own thing to drive the
T6963-based display and read the buttons/IR port/rotary encoder.
Naturally, it makes sense to spend some time just trying to blow
packets at it first.
Thanks for any pointers.
-ethan