Orange Pi Zero 2

Description

Official website : orangepi.org/Orange Pi Zero2/ (Backup)

The OrangePi Zero 2 board is an Open-source Single Board Computer (SBC) of 53x60mm created and sold by Xunlong.

Base system

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

Connection and startup

USB-UART serial console connection

File:OPi Zero 2 UART.jpg

UART debug port

On the J3 connector (3 pins male 2.54mm, right behind the USB port, pin 1 on the 2x26pins connector side) :

pin 1 - GND

pin 2 - UART RX

pin 3 : UART TX

SD card boot

The OrangePi Zero 2 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 2 board has two extension ports using common 2.54mm (0.1inch) pitch:

• con4 : 2x13
• con5 : 1x13

File:Orange Pi Zero 2 Expansion Header.jpg

Orange Pi Zero Plus 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