Thank you all for your time. I haven't try to switch between the HW SPI and HW I2C mode yet. I hope it won't have any conflict. Thomas Bob Axtell wrote: 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. >http://hamradio.cmcorp.com/inventory/Inventory.html >http://www.harvardrepeater.org > > > -----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 > > > > > > --------------------------------- > > Do you Yahoo!? > > Protect your identity with Yahoo! Mail AddressGuard > > > > -- > > http://www.piclist.com hint: PICList Posts must start with ONE topic: > > [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads > > > > > > > >-- >http://www.piclist.com hint: PICList Posts must start with ONE topic: >[PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads -------------- Bob Axtell PIC Hardware & Firmware Dev Tucson, AZ 1-520-219-2363 "I lose some on each sale but make it up in volume." -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads --------------------------------- Do you Yahoo!? Protect your identity with Yahoo! Mail AddressGuard -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads