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Conflict I2C and SPI

 
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acmong



Joined: 14 Dec 2007
Posts: 1

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Conflict I2C and SPI
PostPosted: Fri Dec 14, 2007 9:46 am     Reply with quote
I use spi_setup in main.c and #use i2c in at24.c. They share the same pin RC3,RC4. The chip i use is pic18f452.
In main.c i use read/write spi normaly without using i2c,but when i call i2c function it doesn't work and spi doesn't work too.
Can anyone help me to solve this problem?
Thanks very much!
rnielsen



Joined: 23 Sep 2003
Posts: 852
Location: Utah

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PostPosted: Fri Dec 14, 2007 9:52 am     Reply with quote
You cannot use them at the same time. They use the same hardware. I've read, on this forum, that you can switch between them but I've never done it and I can't remember how. Search this forum and you should find your answer.

Ronald
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