PINE64 PinePhone

PinePhone is an ARM64 smartphone created by PINE64.

Features

  • System on Chip: Allwinner A64

    • CPU: Quad-Core ARM Cortex-A53

    • GPU: ARM Mali400 MP2

    • Interrupt Controller: ARM GIC PL400 (Generic Interrupt Controller v2)

    • Display Engine: Allwinner Display Engine 2.0 (MIPI DSI with DMA)

  • Display: Xingbangda XBD599 HD IPS Display (5.95 inches, 1440x720 resolution, 16M colors, PWM Backlight)

  • Touch Panel: Goodix GT917S Capacitive Touch Panel (I2C)

  • LCD Controller: Sitronix ST7703 (MIPI DSI)

  • RAM: 2GB or 3GB LPDDR3 SDRAM

  • Internal Storage: 16GB or 32GB eMMC, extendable up to 2TB via microSD

  • Back Camera: Single 5MP, 1/4”, LED Flash

  • Front Camera: Single 2MP, f/2.8, 1/5”

  • Sound: Loudspeaker, 3.5mm jack & mic (jack doubles as Hardware UART if Privacy Switch 6 is Off)

  • Modem: Quectel EG25-G

    • LTE-FDD, LTE-TDD, WCDMA, GSM

    • GNSS: GPS / GLONASS / BeiDou / Galileo / QZSS, with A-GPS

  • 2.4 GHz Wireless: Realtek RTL8723CS

    • WLAN: WiFi 802.11 b/g/n, single-band, hotspot

    • Bluetooth: 4.0, A2DP

  • Magnetometer: STMicroelectronics LIS3MDL

  • Ambient Light / Proximity: SensorTek STK3335

  • Accelerometer / Gyroscope: InvenSense MPU-6050 (I2C)

  • Privacy Switches: Modem, WiFi & Bluetooth, Microphone, Cameras, Headphone

  • Battery: Lithium-ion, rated capacity 2800mAh (10.64Wh), typical capacity 3000mAh (11.40Wh)

  • I/O: USB Type-C, USB Host, DisplayPort Alternate Mode output, 15W 5V 3A Quick Charge, follows USB PD specification

  • Power Management Integrated Circuit: X-Powers AXP803 (Reduced Serial Bus)

Serial Console

A PinePhone Serial Debug Cable is required to run NuttX on PinePhone.

On PinePhone, set the Privacy Switch 6 (Headphone) to Off.

Connect PinePhone to our computer with the Serial Debug Cable. On our computer, start a Serial Terminal and connect to the USB Serial Port at 115.2 kbps.

NuttX will appear in the Serial Console when it boots on PinePhone.

ARM64 Toolchain

Before building NuttX for PinePhone, download the ARM64 Toolchain for AArch64 Bare-Metal Target aarch64-none-elf from Arm GNU Toolchain Downloads. (Skip the section for Beta Releases)

Add the downloaded toolchain gcc-arm-...-aarch64-none-elf/bin to the PATH Environment Variable.

Check the ARM64 Toolchain:

$ aarch64-none-elf-gcc -v

Building

To build NuttX for PinePhone, install the prerequisites and clone the git repositories for nuttx and apps.

Configure the NuttX project and build the project:

$ cd nuttx
$ tools/configure.sh pinephone:lvgl
$ make
$ cp nuttx.bin Image
$ rm -f Image.gz
$ gzip Image

This produces the file Image.gz, which will be copied to PinePhone in the next step.

If the build fails with the error token "@" is not valid in preprocessor, apply this patch to gcc-arm-none-eabi/arm-none-eabi/include/_newlib_version.h in the ARM64 Toolchain.

Booting

NuttX boots on PinePhone via a microSD Card. To prepare the microSD Card, download the PinePhone Jumpdrive Image pine64-pinephone.img.xz from dreemurrs-embedded/Jumpdrive.

Write the downloaded image to a microSD Card with Balena Etcher.

Copy the file Image.gz from the previous section and overwrite the file on the microSD Card.

Check that PinePhone is connected to our computer via a Serial Debug Cable at 115.2 kbps. Privacy Switch 6 (Headphone) should be set to Off.

Insert the microSD Card into PinePhone and power up PinePhone. NuttX boots on PinePhone and NuttShell (nsh) appears in the Serial Console.

To see the available commands in NuttShell:

$ help

To run the LVGL Touchscreen Demo:

$ lvgldemo widgets

LEDs

The supported PinePhone LEDs are:

Index

LED

PIO

LED1

Green LED

PD18

LED2

Red LED

PD19

LED3

Blue LED

PD20

Configurations

lcd

Supports LCD Display (XBD599) with LCD Controller (ST7703), Display Engine 2.0, MIPI Display Serial Interface (DSI), Power Management Integrated Circuit (AXP803) and Reduced Serial Bus (RSB). Serial Console is enabled on UART0 at 115.2 kbps.

lvgl

Supports all the features in lcd, plus LVGL Graphics Library and Touch Panel (GT917S). Serial Console is enabled on UART0 at 115.2 kbps.

nsh

Basic configuration that runs NuttShell (nsh). This configuration is focused on low level, command-line driver testing. Built-in applications are supported, but none are enabled. Serial Console is enabled on UART0 at 115.2 kbps.

sensor

Supports Accelerometer / Gyroscope (MPU-6050), Power Management Integrated Circuit (AXP803) and Reduced Serial Bus (RSB). Serial Console is enabled on UART0 at 115.2 kbps.

Peripheral Support

NuttX for PinePhone supports these peripherals:

Peripheral

Support

NOTES

Accelerometer (MPU-6050)

Yes

Backlight

Yes

Display Engine

Yes

Frame Buffer

Yes

LCD Controller (ST7703)

Yes

LCD Panel (XBD599)

Yes

MIPI D-PHY

Yes

MIPI DSI

Yes

PIO

Yes

PMIC (AXP803)

Yes

RSB

Yes

TCON0

Yes

TWI / I2C

Yes

Touch Panel (GT917S)

Yes

UART

Yes