Lpc2000

--- In lpc2000@yahoogroups.com, "mal_ibn" <mal_ibn@g...> wrote:
> Hi,
> 
> did anyone already connect a PS/2 mouse or trackball to an ARM7? Has 
> anyone a description what to do after applying Vcc/GND to the mouse? 
> Does the mouse produce the clock or does ARM has to poll the mouse? 
I 
> have a description of what bit carries which info (regarding the 
three 
> bytes of standard PS2 protocol) but my mice do not send any data of 
> their own.
> 
> Any hint is welcome.
> 
> regards, Alexander

some infos here :
http://www.computer-engineering.org/

look at "PS2 Mouse / Keyboard Interface".
seems that the mouse is sending the clock.