Lpc2000

Great! Thanks! That seems to be the one document - if not THE document 
I searched for. Yesterday at night I found out that the ACK is needed 
for communication. Now that I understand the theory - is there a 
application with ARM-software to read a PS/2 mouse or trackball? If 
there is an open source for a mousedriver (without OS), I'd like to use 
it instead of debugging wrong thought ;)
There will be enough debugging implementing the driver into my 
application.

regards, Alexander


--- In lpc2000@yahoogroups.com, Eric BENARD <elbenard@g...> wrote:
> Hi,
> 
> mal_ibn wrote:
> 
> >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.
> >
> >  
> >
> You will find all the necessary informations here :
> http://www.Computer-Engineering.org/
> 
> Eric