Post by thread:PC AT Keyboard Emulation

Hi I need to implement an interface to read a bunch of switches, and communicate the fact as a character code to a PC via the keyboard port. This is a great app. for a '5X. Rather than doing the wheel invention bit, could someone point me in a direction, or is someone willing to share their experiances/resources. TIA John Maud | (spam_OUTmaudjrTakeThisOuTpixie.co.za)

Hi John, >I need to implement an interface to read a bunch of switches, and >communicate the fact as a character code to a PC via the keyboard port. >This is a great app. for a '5X. > >Rather than doing the wheel invention bit, could someone point me in a >direction, or is someone willing to share their experiances/resources. A couple of weeks ago I tested this with a BASIC Stamp II so feel free to take a look at the code and convert it to ASM, but beware it's not fancy at all <g>... There are some general information about the AT-keyboard protocol in the ZIP-archive that I found on the net that may be usefull for you. The URL is: http://www.hth.com/filelibrary/bs2-ic/keybtst.zip Regards, /Christer -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- * High Tech Horizon - Christer Johansson - E-mail: .....cjKILLspam@spam@hth.com * -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- * Vi saljer Parallax, Inc. BASIC Stamp's produkter i Skandinavien * >> World Wide Web On-Line Catalog - http://www.hth.com << -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-