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Shield pin configuration

# echo in > /sys/class/gpio/gpio228/direction

# echo in > /sys/class/gpio/gpio229/direction

# echo mode1 > /sys/kernel/debug/gpio_debug/gpio111/current_pinmux

# echo mode1 > /sys/kernel/debug/gpio_debug/gpio115/current_pinmux

# echo mode1 > /sys/kernel/debug/gpio_debug/gpio114/current_pinmux

# echo mode1 > /sys/kernel/debug/gpio_debug/gpio109/current_pinmux

# echo low > /sys/class/gpio/gpio214/direction

You should be able to use IO10 through IO13 for SPI connectivity.

Intel® Edison Kit for Arduino*

Hardware Guide December 2014

32 Document Number: 331191-004

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Intel Edison Compute Module (IoT) Specifiche Pagina 32