Question Scan code

[palmier278]

Hi,

Can you give me an example for the following protocol scan code between keyboard and computer ?
" fe " : Keyboard fails to ack, please resend

This protocol scan code was found here :

Keyboard scancodes: Keyboard scancodes

Thanks
Palmier

 

[Ralston18]

Your question appears to be from some sort of test or exam.

May or may not be the case but there is no way to truly know from this end.

Please be aware that Forum rules prohibit helping with homework and tests. (And other things as well.)

However, what you can do is provide what you believe to be applicable example(s).

Post your reasoning and cite sources as applicable.

Then ask for comment.

 

[palmier278]

it's just for my information culture.
My reasoning : when there are computer bugs, command FE allows to resend data.

 

[Ralston18]

Fair enough.

Out of my comfort zone (full disclosure) by a long ways.

However: I am not sure that "fe" allows data to be resent - it is more of a request to the keyboard to resend data when the keyboard has failed to acknowledge (ACK) something.

Note that the scancode in question is a communication protocol. (Section 1.2)

I took a look at the other sections related to your link via Contents.

From Section 12.1:

Command fe: Resend

Meant for use by the keyboard controller after a transmission error. Not for use by the CPU.

Can you make that into an example?