reducing shiftout clock freq and PS2/PC interfacing ....

[sayzer]

ok , what we have until now is :

The code works almost perfectly when booting to a command prompt only (DOS). in BIOS i made it not to halt on keyboard errors, but this only removed the ( No keyboard or keyboard error) that appears when switching on. But still it FREEZES when trying to send a character in notepad ( in windows). why is it working over DOS but windows Freezes?

in the code i made no initialization (When the PC is booting, the keyboard must send and receive several commands to tell the PC what it is, what mode it's using, etc.) and still the DOS recognizes the data sent to the PS/2 port by the PIC.

what to do so that windows doesn't freeze?

thanks again

It seems we will have to look at the hardware side!
Unplug mouse, and boot with KB only.
Open notepad and unplug KB, plug PIC circuit.
Send data.
IF still freezing, then post the schematic.

P.S. - Assuming (and also hoping) that after each send, you are setting your Clk and Data pins to be input pins and putting a delay like 10mS.

[wireless magic]

thank u ,
we tried it and no more freezing, and it works perfectly on notepad.
how can we avoid freezing? ( how to boot with the PIC circuit and make windows recognize it?)
i tried some initialization codes but still freezes.
is the initialization code for windows to recognize the "PIC keyboard" or for the PC to boot initially with the "PIC keyboard" connected ??