AT keyboard controller

[Christophe_work]

Hi,

I want to implement following AT keyboard module in my application:

https://www.zippy.com/K_Product_det...rial Keyboard & Notebook Keymodule&lv_rfnbr=2

model = KR-283

However the extra PCB contains the keyboard controller that communicates via PS2. I directly want to connect the keyboard to my PCB using my own AT keyboard controller. That keyboard controller will then communicate with a PIC µP. Where can I find an AT keyboard controller chip? If you look closely to the PCB, you can see there is a black plastic 'dot' - like on the chip.

regards

 

[artem]

that can help you to not reinvent the wheel :
http://www.electronic-engineering.ch/microchip/projects/keyboard/v1xx/keyboard_v1xx.html

then have a look to AVR313: Interfacing the PCAT Keyboard app note to get idea how it is done :
http://www.atmel.com/dyn/products/app_notes.asp?family_id=607
http://www.atmel.com/dyn/resources/prod_documents/doc1235.pdf
http://www.atmel.com/dyn/resources/prod_documents/AVR313.zip

 

[Christophe_work]

Hey, tks for replying; but that I can do that ( I have a PS2 driver for my PIC)

I'm actually looking for a keyboard controller that scans matrixlines and sends PS2 code output.