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Author Topic: Does using ICSP for SPI free up D13, D12 and D11?  (Read 186 times)
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dgelman
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« on: January 25, 2013, 01:22:54 pm »
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Hello,

I want to use SPI my D11-D13 pins are being used, if I used ICSP and D10 for SS, will this be independent of D11-D13?

Thanks,
Daniel
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PaulS
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« Reply #1 on: January 25, 2013, 01:52:43 pm »
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I want to use SPI my D11-D13 pins are being used, if I used ICSP and D10 for SS, will this be independent of D11-D13?
No. SPI uses pins 11, 12, and 13, regardless of whether the SPI device is physically connected to those pins, or not. On the 328-based Arduinos, that is.

The advantage of using the ICSP connection is that the Mega connects its SPI pins there, too, and they are different from the 328-based pins.
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