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SPI and I2C

 
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Prefekt



Joined: 21 Oct 2010
Posts: 85

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SPI and I2C
PostPosted: Mon Dec 27, 2010 11:44 am     Reply with quote
Hello,

Is it posible the SPI and I2C to use in one Project?
I would like use a 18F4620 with an DS1307 RTC and a mmc card on SPI.
Or know anybody a simple programming SPI RTC? Whats the better way?

Best regards
Volker
PCM programmer



Joined: 06 Sep 2003
Posts: 21708

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PostPosted: Mon Dec 27, 2010 12:45 pm     Reply with quote
Yes, you can do it easily. Use the hardware SPI pins for the MMC card.
Use two other free i/o pins (with software i2c) for the ds1307.
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