Verify that the device drivers are loaded and read spi0 transfers: iex(11)> cmd ( "ls /dev/spi*" ) / dev / spidev0.
The following examples shows how to get SPI0 functional in Elixir. I2c is on /dev/i2c-0 - you can use i2cdetect -y 0 to check what is on the i2c bus You will be responsible for setting this yourself.Īll parts of UEXT port are enabled and supported. Will set the nerves_serial_number, if you override the location to this file, Lose the serial number or any other data stored in this block.Īdditional key value pairs can be provisioned by overriding the default nfįile location by setting the environment variable The application partition so reformatting the application partition will not
This is a special region that is separate from Replaced, the serial number will need to be reprogrammed. Serial numbers are stored on the MicroSD card so if the MicroSD card is Programming MicroSD cards using fwup, the commandline is: sudo NERVES_SERIAL_NUMBER=12345678 fwup path_to_firmware.fw NERVES_SERIAL_NUMBER environment variable when burning the firmware. This system supports setting the serial number offline. The normal procedure would be to set these keys once in manufacturing or beforeįor example, to provision a serial number on a running device, run the followingĪnd reboot: iex> cmd ( "fw_setenv nerves_serial_number 12345678" ) If unset, it defaults to part of the Etherner MAC Address. Provisioning information can be queried using the Nerves.Runtime KV store'sīy default, this string is used to create unique hostnames and Erlang node names. Provisioning is an optional step and reasonableĭefaults are provided if this is missing. This system supports storing provisioning information in a small key-value store A 3.3V FTDI cable is needed to access the output. The console is configured to output to the 6 pin header on theĪ64-OLinuXino that's labeled DBG_UART. Using the wired Ethernet interface 'eth0' and DHCP. Partition, and enabling ssh-based firmware updates. Like bringing up networking, initializing the writable application data Repository and update as described in Making custom If you need custom modifications to this system for your device, clone this The most common way of using this Nerves System is create a project with mix nerves.new and to export MIX_TARGET=a64_olinuxino. Other requires USB WiFi dongle/driverĪXP803 driver available - support for battery and ac charger status RTL8723BS on board (some board configurations). This is the base Nerves System configuration for the A64-OLinuXinoĪllwinner A64 - 1.2 GHz Quad-Core ARM Cortex-A53 64-bit
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