Post by thread:some code please

I need someone to help me out with a program. I need two pieces of code, one which lets me time something acurately for just a short period of time, and the other to make DTMF tones. The first piece of code I need has to be a delay that can be specified in milliseconds, my PIC 16c84 will be running off a color burst crystal. The second piece of code should make the DTMF tones by letting me specify the two frequencies that need to be mixed, such a 900 + 1400 or whatever the tone may be. And yes I do have some DTMF generating chips, but I prefer not to use them for this project since the PIC could handle it. I would appreciate it if someone could write these two fragments of code for me because I do not have enough knowledge on the PIC right now to write it, but I plan on reading whatever is given to me to figure out how it works. Thankyou spam_OUTdeicideTakeThisOuTfia.net

Bob, Fast Forward Engineering has a BASIC routine to generate a precise delay routine. The URL is http://www.geocities.com/SiliconValley/2499/answers.html#PIC00067. As for the DTMF code, check out Eric Smith's web page at http://www.brouhaha.com/~eric/pic/ or David Thomas' code at http://www.rt66.com/dthomas/pic/dtmf.txt Hope this helps. Greg Maki

Greg Maki wrote: > > Bob, > > Fast Forward Engineering has a BASIC routine to generate a precise > delay > routine. The URL is > http://www.geocities.com/SiliconValley/2499/answers.html#PIC00067 > > Hope this helps. > > Greg Maki Thats a pretty nice program, but it just stumped me further. Mabye its because I use the Parallax instruction set. If someone could provide some more help for me I would appreciate it. Again what I am looking for is a piece of code to make a delay that can be specified in milliseconds. I fomeone can do this in the parallax instruction set it would be great. My 16c84 will be running off a colorburst crystal. Thanks a lot. .....deicideKILLspam@spam@fia.net

John Doe <PICLISTKILLspamMITVMA.MIT.EDU> wrote: > what I am looking for is a piece of code to make a delay that can > be specified in milliseconds. I fomeone can do this in the parallax > instruction set it would be great. My 16c84 will be running off a > colorburst crystal. Sigh... Ok, here's the code: ; WAIT SOME NUMBER OF MILLISECONDS (MORE OR LESS) ON A 14-BIT ; PIC RUNNING AT 3.579545 MHZ. ; ; ENTER WITH THE NUMBER OF MILLISECONDS IN W. MSTIMER EQU [any general-purpose file register] WAITMS: MOVWF MSTIMER WAITMS1: MOVLW 223 WAITMS2: ADDLW -1 SKPZ GOTO WAITMS2 DECFSZ MSTIMER GOTO WAITMS1 RETURN Sorry, but I don't use the Parallax instruction set... Maybe Andy Kunz will translate it for you. -Andy === Andrew Warren - .....fastfwdKILLspam.....ix.netcom.com === Fast Forward Engineering - Vista, California === === Did the information in this post help you? Consider === contributing to the PICLIST Fund. Details are at: === www.geocities.com/SiliconValley/2499/fund.html