ps/2 keyboard interface with mcu

• Jan 5, 2005

• #1

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necromancer

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ps2 keyboard interfacing

have any ic that interface ps/2 keyboard with mcu?
if not what mcu is suit for this?

 

• Jan 5, 2005

• #2

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farhada

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ps2 keyboard interface

Hi,
PS/2 keyboard interface is pretty simple. Any controller with an empty serial interface can do it.

Make a google search for it and you will find tuns of information.

BR,
/Farhad

 

• Jan 5, 2005

• #3

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XNOX_Rambo

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ps2 keyboard mcu

You can read all about it here: **broken link removed**

 

• Jan 5, 2005

• #4

samcheetah

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keyboard mcu

see the article PIC to PS/2 Mouse and Keyboard Interfacing which came in the August 2004 issue of EPE. it shows how to use a PS/2 with a PIC microcontroller.

 

• Jan 5, 2005

• #5

fireplus

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keyboard interfacing

hi,

if you want to use 8052 then go to
**broken link removed**

bye

Fire in the Wire :sm2:

 

• Jan 6, 2005

• #6

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banh

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ps2 keyboard interface pdf

XNOX_Rambo said:

You can read all about it here: h**p://panda.cs.ndsu.nodak.edu/~achapwes/PICmicro/keyboard/atkeyboard.html

Click to expand...

Just to add some info.. the link use the intel 8042 keyboard controller.

detail of the protocol is provided here
**broken link removed**
which is synchronous communication protocol using Data and Clock line.

we can implement this protocol without using the 8042

 

• Jan 6, 2005

• #7

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IanP

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interfacing ps/2 keyboard to mcu

PS/2 and AT are operating in the same way: Clock and Data.
Here are examples for AT:


www.semiconductors.philips.com/ acrobat/applicationnotes/AN434.pdf

In the second one you can remove all I2C procedures..

It has look up tables for kbd key to ASCII..

 

• Jan 7, 2005

• #8

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jshroff

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panda.cs.ndsu.nodak.edu

I did a project interfacing ths keyboard to a renesas H8 micro please see

**broken link removed**

 

• Jan 7, 2005

• #9

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mitesh

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keyboard interface with mcu

Do any body know who to interface PS/2 Mouse with MCU. I want design & source code for it.

 

• Jan 8, 2005

• #10

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IanP

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picmicro keyboard controller

There are some interesting articles on PS/2 or serial mouse connected to µPs.

**broken link removed**
**broken link removed**
https://instruct1.cit.cornell.edu/courses/ee476/FinalProjects/s2004/jml66/EAS_final.htm

 

• Jan 10, 2005

• #11

Saeedafzalkhan

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keyboard interface with 8052

U Can Visit Beyondlogic.com For Ur Solution.

 

• Jan 11, 2005

• #12

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irfansyah

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keyboard interface to mcu

My friend said that PS/2 is just the same as RS-232 but it has a TTL voltage logic level. Is this true?

 

• Jan 11, 2005

• #13

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IanP

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panda.cs.ndsu.nodak

PS/2 is not the same as RS-232.
RS-232 hase transmission line (Tx) and reception line (Rx) +/-3 to +/-25V whereas PS/2 has Data line and Clock line, both 0-5V levels.