PIC w/ spi, i2c & rs232 | Piclist

A discussion group for the PICMicro microcontroller. Also called the Microchip PIC, this list is dedicated to the use and abuse of this fine, simple, microcontroller. Close to topic posts are welcome, ie. general electronics.

Hi all Just wondering if anyone out there could help me with a little problem I have currently... Basically I want to create a prototype MP3 player using a PIC16F877. This bit is easy - there is heaps of info on the web about how to do this. Where the trouble lies is here - I also want to add RS232 communication to the PIC, but don't seem to have a spare USART. Basically I need three communication ports - SPI, I2C and RS232. I have the SPI on pins C3 & C4 (interface with MultiMedia flash card and outputs data to the MP3 decoder), and the I2C on pins C6 & C7. I realise I2C can run on C3 & C4, however this leaves me with no SPI. The RS-232 is for interfacing a GPS module to the PIC and debugging via the PC - it's a long story why I want a GPS module in an MP3 player. Any help/hints/advice would be greatly appreciated, Kind regards Andrew Ritchie

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PIC w/ spi, i2c & rs232 - Andrew Ritchie - Feb 8 9:05:00 2003