Dev/OPi/OPiZero

Description

Official website : http://www.orangepi.org/orangepizero/ (Backup)

The OrangePi Zero board is an Open-source Single Board Computer (SBC) of 48x46mm created and sold by Xunlong.

Base system

• Create initial system from scratch (sources): all the steps, using u-boot and Linux kernel sources, and a guide to create a minimal system using either Busybox or Devuan.
• The "SD card creation" section from the "from scratch" page : also provides information to use u-boot, kernel, and Devuan root filesystem I built.
  

You can get the images here: Images for Orange Pi Zero board.

Connection and startup

• USB-UART serial console connection

UART debug port

On the J3 connector (3 pins male 2.54mm, next to the Ethernet connector, pin 1 on the board edge) :

pin 1 - GND : Black

pin 2 - UART RX : Orange

pin 3 : UART TX : Yellow

• SD card boot

The OrangePi Zero board boots from the SD card which has to be prepared following specific steps. Follow the "SD card creation" section from the "from scratch" page

Extension ports

The OrangePi Zero board has two extension ports using common 2.54mm (0.1inch) pitch:

• con4 : 2x13
• con5 : 1x13

Orange Pi Zero Expansion Header

con4 : 2x13 Header
1	3.3V	2	5V
3	TWI0_SDA / PA12 / GPIO12	4	5V
5	TWI0_SCK / PA11 / GPIO11	6	GND
7	PWM1 / PA06 / GPIO6	8	UART1_TX / PG06 / GPIO198
9	GND	10	UART1_RX / PG07 / GPIO199
11	UART2_RX / PA01 / GPIO1	12	SIM_CLK/PA_EINT7 / PA07 / GPIO7
13	UART2_TX / PA00 / GPIO0	14	GND
15	UART2_CTS / PA03 / GPIO3	16	TWI1-SDA / PA19 / GPIO19
17	3.3V	18	TWI1-SCK / PA18 / GPIO18
19	SPI1_MOSI / PA15 / GPIO15	20	GND
21	SPI1_MISO / PA16 / GPIO16	22	UART2_RTS / PA02 / GPIO2
23	SPI1_CLK / PA14 / GPIO14	24	SPI1_CS / PA13 / GPIO13
25	GND	26	SIM_DET/PA_EINT10 / PA10 / GPIO10

con5 1x13 Header
1	5V
2	GND
3	USB-DM2
4	USB-DP2
5	USB-DM3
6	USB-DP3
7	LINEOUTR
8	LINEOUTL
9	TV-OUT
10	MIC-BIAS
11	MIC1P
12	MIC1N
13	CIR-RX

External links

(Pseudo)random list of links to pages with information to compile u-boot, the Linux kernel, and create a root filesystem.

• Xunlong Orange Pi Wiki : http://www.orangepi.org/Docs/mainpage.html
• Xunlong Orange Pi Github : https://github.com/orangepi-xunlong/OrangePi_Build
• Linux Sunxi Wiki : Orange Pi Zero(open source software community dedicated to providing open source operating system support for Allwinner SoC based devices).
  • Linux Sunxi Wiki : Bootable SD Card
  • Linux Sunxi Wiki : Mainline U-Boot
  • Linux Sunxi Wiki : Mainline Kernel Howto
• FreeBSD : https://wiki.freebsd.org/FreeBSD/arm/Allwinner
• Armbian : https://www.armbian.com/orange-pi-zero/