Banana Pi M1+

Intro
=====

This default configuration will allow you to start experimenting with the
Buildroot environment for the Banana Pi M1+. With the current configuration
it will bring-up the board, and allow access through the serial console.

How to build it
===============

Configure Buildroot:

  $ make bananapi_m1_plus_defconfig

Compile everything and build the SD card image:

  $ make

How to write the SD card
========================

Once the build process is finished you will have an image called "sdcard.img"
in the output/images/ directory.

Copy the bootable "sdcard.img" onto an SD card with "dd":

  $ dd if=output/images/sdcard.img of=/dev/sdX

Notes:
  - replace 'sdX' with the actual device with your micro SD card
  - you may need to be root to do that (use 'sudo')

Insert the micro SD card in your Banana Pi M1+ and power it up. The console
is on the debug TTL UART, 115200 8N1.

Ethernet
==========

  # udhcpc -i eth0

Wifi
==========

  # wpa_passphrase YOUR_SSID >> /etc/wpa_supplicant.conf
  (enter the wifi password and press enter)
  # wpa_supplicant -i wlan0 -c /etc/wpa_supplicant.conf -B
  # udhcpc -i wlan0

Note:
  - replace 'YOUR_SSID' with the actual SSID from your access point

Audio
==========

For this example you need package alsa-utils.

Connect a headphone to the 3.5mm jack (TRRS). Note, that the Banana Pi M1+
has an on-board microphone, too.

  # amixer cset name='Power Amplifier DAC Playback Switch' on
  # amixer cset name='Power Amplifier Mute Switch' on
  # amixer cset name='Power Amplifier Volume' 42