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[on:]

I looked a while, but couldn’t find a definitive answer:

Is it possible to remap the SPI pins (on a Mega in my case) 50, 51, 52 to some other pins, let’s say 10, 11, 12 ?

I know that there is the ICSP header too, but due to the spatial setup of my project I will not be able to use them either. The easiest solution for me would be to just remap SPI pins to another location.


Is there a way to achieve this?
Thanks! 

[Reply #1 on:]

Add wires from 50,51,52 to 11,12,13 (check the order) - and then keep 11,12,13 as unused inputs.

[Reply #2 on:]

You mean soldering wires on the back of the Arduino? Whoa, sounds dirty to me  .

But is it possible to remap or reassign these pins in software ? Like one can assign interrupts to any other pins like so with this ‘register and bit shift stuff’ ?

[Reply #3 on:]

Only if you use software to bitbang the pins - slower than using the SPI hardware and the up to 8 MHz clock rate that the hardware offers.
SPI is nice, offers "drop & forget" transfer - and 2 directions at once!