[VoIP] 12F683 PIC for Tone Generation

[Donald Froula]

Other versions of code using the same circuit
schematic at:

http://www.geocities.com/donfroula/

in the ADC_blue_box... files.

Note, the circuit uses a single pin and resistor
voltage divider to interface all 13 keys of the
keypad.

Other stuff from my older 68HC705C8 design as well.

Don

--- Donald Froula <dfroula at sbcglobal.net> wrote:

> Sorry, Jerry. I guess you have to be logged in to
> access the files.
> 
> Here are the direct links:
> 
> schematic:
>
http://www.geocities.com/donfroula/pwm_bb_schematic.gif
> 
> prototype pic:
> http://www.geocities.com/donfroula/IMG_3313.JPG
> 
> programmer pic:
> http://www.geocities.com/donfroula/IMG_3317.JPG
> 
> source code:
>
http://www.geocities.com/donfroula/ADC_blue_box_09.txt
> 
> hex file for programmer:
>
http://www.geocities.com/donfroula/ADC_blue_box_09.hex.txt
> 
> Don
> 
> --- Jerry Petrizze <t2600 at sbcglobal.net> wrote:
> 
> > Yo Don:  How does one access this stuff???
> > I got an error message when trying.
> > Jerry Petrizze
> > 
> > 
> > ----- Original Message ----- 
> > From: "Donald Froula" <dfroula at sbcglobal.net>
> > To: <voip at ckts.info>
> > Sent: Thursday, March 13, 2008 5:59 PM
> > Subject: [VoIP] 12F683 PIC for Tone Generation
> > 
> > 
> > > I've been fooling around with the 12F683 PIC
> > > microcontroller for a few months. I am using the
> > > PicBasic Pro compiler, which makes development
> > quick
> > > and easy, compared to assembly language.
> > > 
> > > I coded up and built a blue box circuit with 12
> > > non-volatile memories. It uses the PicBasic Pro
> > > "FREQOUT" command that can generate single or
> dual
> > > tones using Pulse Width Modulation. With proper
> > > filtering of the PWM, it could have all sorts of
> > > interesting telephony applications.
> > > 
> > > Schematic, source code, and programmer hex files
> > are
> > > at the Binrev board:
> > > 
> > >
> >
>
http://www.binrev.com/forums/index.php?showtopic=36307
> > > 
> > > Don 
> > > _______________________________________________
> > > VoIP mailing list
> > > VoIP at ckts.info
> > > http://lists.ckts.info/mailman/listinfo/voip
> > > Project Web Page: http://www.ckts.info/
> > _______________________________________________
> > VoIP mailing list
> > VoIP at ckts.info
> > http://lists.ckts.info/mailman/listinfo/voip
> > Project Web Page: http://www.ckts.info/
> > 
> 
> _______________________________________________
> VoIP mailing list
> VoIP at ckts.info
> http://lists.ckts.info/mailman/listinfo/voip
> Project Web Page: http://www.ckts.info/
>