On 29/07/2010 11:41, ivp wrote:
> Hi all
>
> I'm working on a project based on this
>
> http://home.clear.net.nz/pages/joecolquitt/pic_keyboard.html
>
> The intention is to monitor/capture/transmit keypresses of the
> PC keyboard, using a PIC circuit between the keyboard and the
> PC. Although it can be added in parallel
>
> A problem has arisen which has me stumped. The keyboard
> freezes when the PIC transmits a character down to the PC.
> The PC still recognises and displays any further characters
> sent by the PIC, so the clock and data lines are still working
The data is bidirectional somehow, I forget the details. Maybe the=20
keyboard is waiting for something.

The three LEDs are not set by keyboard at all, but set by commands from=20
PC, that I'm 100% sure of.

--=20
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