I feel exactly the opposite: I like bit-banging the I2C and use the PIC SPI
port, which is fully-featured, fast, and truly automatic. The I2C feature
on most PICs is ho-hum and needs a lot of handholding- so, might as well
just bit-bang it.

--Bob

At 02:16 PM 11/13/2003, you wrote:
>You can bit bang SPI out any digital port,
>and let the IIC run on the internal port C in the PIC.
>
>   *
>   |  __O    Thomas C. Sefranek  WA1RHP@ARRL.NET
>   |_-\<,_   Amateur Radio Operator: WA1RHP
>   (*)/ (*)  Bicycle mobile on 145.41 MHz PL 74.4
>
>ARRL Instructor, Technical Specialist, VE Contact.
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>
> > -----Original Message-----
> > From: pic microcontroller discussion list
> > [mailto:PICLIST@MITVMA.MIT.EDU]On Behalf Of Thomas
> > Sent: Thursday, November 13, 2003 3:37 PM
> > To: PICLIST@MITVMA.MIT.EDU
> > Subject: [PIC:] HW SPI and SW I2C on the same I/O pins?
> >
> >
> > Hi everyone,
> >
> > I understand that the PIC can not support both HW SPI and I2C at
> > the same time, but I am just wondering if it is possible to use
> > HW SPI and software I2C (master mode) on the same I/O pins (RC3 and RC4)?
> >
> > Thank you in advance!
> >
> > Thomas
> >
> >
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--------------
Bob Axtell
PIC Hardware & Firmware Dev
Tucson, AZ
1-520-219-2363
"I lose some on each sale but make it up in volume."

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