i've looked all over, and it's been done before. there's so many similar projects that have done the same thing, but i don't know which one is the one for me. i'm doing a project, which uses the keyboard. however, i want to get rid of the keyboard altogether. i want to use the PIC16F84 instead. i don't need all the keys. and the 16F84 must interface to the PS/2 port. i have a compiler for ASM and BASIC. no C++ though. which project online should i use?

I don't know of any one project to use... there are several out there and all of them have their pros and cons. However, if I were you, I would put away BASIC and go get a free C++ compiler. They are scattered throughout the net, the one I currently use is Dev-C++ located at http://www.bloodshed.net IR

================================================================ Ok...if I understand correctly then you want to know how to program the hardware in question through interrupt controls so I will use the mouse as an example of how to make these calls as embedded asm code within Turbo BASIC (since you didn't specify what BASIC compiler you will be using). Although the PIC can be programmatically controlled, there is no real need to take this approach for what you have described so the asm code for programming for mouse control follows: REM REM all function calls are made using REM interrupt 33h REM REM let's first intitialize the mouse asm mov ax,00h ;move function num. 0 into ax int 33h ;call interrupt 33h end REM the mouse show function increments the mouse REM show counter by one each time it is REM called. The mouse hide function REM decrements the mouse show counter by 1 REM each time it is called. The show mouse REM counter must be greater than 0 in order REM for the mouse to be visible. The mouse REM show function must be called after init- REM ializing the mouse in order for it to be REM visible. It is therefore advisable that REM you externally track the value of this REM counter in a variable in order to know REM whether or not the mouse is visible or REM not. REM REM let's display the mouse cursor dim show_count as integer = 0 asm mov ax,01h ;move function 1 into ax reg. int 33h ;and call interrupt 33h end show_count=show_count + 1 REM let's hide the mouse cursor (or at least REM decrement the show cursor counter asm mov ax,02h ;move function 2 into ax reg. int 33h ;and call interrupt 33h end show_count=show_count - 1 REM let's get the mouses x,y position dim x,y as integer asm mov ax,03h ;move funtion 3 into ax reg. int 33h ;and call interrupt 33h mov x,cx ;the x position is in cx reg. mov y,dx ;the y position is in dx reg. end REM call function 03h to get the mouse REM button status as well dim buttons as integer asm mov ax,03h ;move function 3 into ax reg. int 33h ;and call interrupt 33h mov buttons,bx ;the buttons bitmask value end There are other functions but this is primarily what you will need. The buttons variable value is as follows: buttons=1 then left mouse button pressed buttons=2 then right mouse button pressed buttons=4 then center mouse button pressed buttons=6 then center/right mouse buttons pressed buttons=5 then center/left mouse buttons pressed buttons=7 then center/left/right mouse buttons pressed buttons=3 then right/left mouse buttons pressed I hope this isn't too confusing. It shows how to program for the mouse. If you need info on DOS programming for the keyboard or some other interrupt information just post back and I'll do my best to help. borelli35

well, i need coding soley for the keyboard. of course, that's been done before. the only thing is that not all of the projects come complete with a schematic.