This is the documentation for the latest (main) development branch of Zephyr. If you are looking for the documentation of previous releases, use the drop-down menu on the left and select the desired version.

ODROID-GO

Overview

ODROID-GO Game Kit is a “Do it yourself” (“DIY”) portable game console by HardKernel. It features a custom ESP32-WROVER with 16 MB flash and it operates from 80 MHz - 240 MHz 1.

The features include the following:

  • Dual core Xtensa microprocessor (LX6), running at 80 - 240MHz

  • 4 MB of PSRAM

  • 802.11b/g/n/e/i

  • Bluetooth v4.2 BR/EDR and BLE

  • 2.4 inch 320x240 TFT LCD

  • Speaker

  • Micro SD card slot

  • Micro USB port (battery charging and USB_UART data communication

  • Input Buttons (Menu, Volume, Select, Start, A, B, Direction Pad)

  • Expansion port (I2C, GPIO, SPI)

  • Cryptographic hardware acceleration (RNG, ECC, RSA, SHA-2, AES)

ODROID-GO

Fig. 202 ODROID-Go Game Kit

External Connector

PIN #

Signal Name

ESP32-WROVER Functions

1

GND

GND

2

VSPI.SCK (IO18)

GPIO18, VSPICLK

3

IO12

GPIO12

4

IO15

GPIO15, ADC2_CH3

5

IO4

GPIO4, ADC2_CH0

6

P3V3

3.3 V

7

VSPI.MISO (IO19)

GPIO19, VSPIQ

8

VSPI.MOSI (IO23)

GPIO23, VSPID

9

N.C

N/A

10

VBUS

USB VBUS (5V)

Supported Features

The Zephyr odroid_go board configuration supports the following hardware features:

Interface

Controller

Driver/Component

UART

on-chip

serial port

GPIO

on-chip

gpio

PINMUX

on-chip

pinmux

I2C

on-chip

i2c

System requirements

Prerequisites

Espressif HAL requires binary blobs in order work. The west extension below performs the required syncronization to clone, checkout and pull the submodules:

west espressif update

Note

It is recommended running the command above after west update.

Building & Flashing

Build and flash applications as usual (see Building an Application and Run an Application for more details).

# From the root of the zephyr repository
west build -b odroid_go samples/hello_world

The usual flash target will work with the odroid_go board configuration. Here is an example for the Hello World application.

# From the root of the zephyr repository
west build -b odroid_go samples/hello_world
west flash

Open the serial monitor using the following command:

west espressif monitor

After the board has automatically reset and booted, you should see the following message in the monitor:

***** Booting Zephyr OS vx.x.x-xxx-gxxxxxxxxxxxx *****
Hello World! odroid_go

Debugging

As with much custom hardware, the ESP32 modules require patches to OpenOCD that are not upstreamed. Espressif maintains their own fork of the project. The custom OpenOCD can be obtained by running the following extension:

west espressif install

Note

By default, the OpenOCD will be downloaded and installed under $HOME/.espressif/tools/zephyr directory (%USERPROFILE%/.espressif/tools/zephyr on Windows).

The Zephyr SDK uses a bundled version of OpenOCD by default. You can overwrite that behavior by adding the -DOPENOCD=<path/to/bin/openocd> -DOPENOCD_DEFAULT_PATH=<path/to/openocd/share/openocd/scripts> parameter when building.

Here is an example for building the Hello World application.

# From the root of the zephyr repository
west build -b odroid_go samples/hello_world -- -DOPENOCD=<path/to/bin/openocd> -DOPENOCD_DEFAULT_PATH=<path/to/openocd/share/openocd/scripts>
west flash

You can debug an application in the usual way. Here is an example for the Hello World application.

# From the root of the zephyr repository
west build -b odroid_go samples/hello_world
west debug

References

1

https://wiki.odroid.com/odroid_go/odroid_go