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mraa/docs/galileorevd.md
Brendan Le Foll 97e00d9298 docs: explain aio numbering scheme
Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
2014-11-21 11:59:57 +00:00

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Galileo Gen 1 - Rev D

Galileo is a microcontroller board based on the Intel® Quark SoC X1000 Application Processor, a 32-bit Intel Pentium-class system on a chip.

The rev D board has the following limitations in libmraa:

  • gpio register access via /dev/uio is limited to pin2 and 3
  • gpio interupts will only work on GPIO_EDGE_BOTH
  • adc kernel module will return 12bit number. MRAA defaults shift this to 10bits
  • AIO pins are treated as 0-5 in mraa_aio_init() but as 14-19 for everything else. Therefore use mraa_gpio_init(14) to use A0 as a Gpio