TQ Support Wiki - en:arm:tqma6ulx:linux:yocto:how-to

audio

Anonymous (anonymous@undisclosed.example.com) — 2026-03-25T11:16:50+00:00

TQMa6ULx - YOCTO Linux BSP documentation * Overview * Quickstart BSP * Deployment * How-To * Known Issues ---------- Connector Function X19 Microphone X20 Line In X21 Line Out Play Audio on MBa6ULx A simple test sound can be played with the command-line tool speaker-test. Headphones or active speakers have to be connected to X21 on MBa6ULx.

buttons

Anonymous (anonymous@undisclosed.example.com) — 2026-03-25T12:34:48+00:00

TQMa6ULx - YOCTO Linux BSP documentation * Overview * Quickstart BSP * Deployment * How-To * Known Issues ---------- The MBa6ULx features three user buttons which are handled by the gpio-keys driver. Reference Button S14 KEY_1 S6 KEY_2 S7 KEY_3 The buttons are accessible via the input device interface. You can identify the correct event node and test the buttons using the evtest tool:

can

Anonymous (anonymous@undisclosed.example.com) — 2026-03-25T13:11:56+00:00

TQMa6ULx - YOCTO Linux BSP documentation * Overview * Quickstart BSP * Deployment * How-To * Known Issues ---------- The MBa6ULx provides two CAN interfaces: CAN0 and CAN1. DIP switch S3 is used to configure the CAN interfaces CAN0 and CAN1. DIP OFF (default) ON S3-1 CAN0 not terminated

cpu

Anonymous (anonymous@undisclosed.example.com) — 2026-03-25T12:09:28+00:00

TQMa6ULx - YOCTO Linux BSP documentation * Overview * Quickstart BSP * Deployment * How-To * Known Issues ---------- The STKa6ULx supports DVFS (dynamic voltage and frequency scaling). By default the governor ondemand is set. Governors are power schemes for the CPU. Only one can be active at a time.

eclipse

Anonymous (anonymous@undisclosed.example.com) — 2026-03-25T12:52:13+00:00

TQMa6ULx - YOCTO Linux BSP documentation * Overview * Quickstart BSP * Deployment * How-To * Known Issues ----------

ethernet

Anonymous (anonymous@undisclosed.example.com) — 2026-03-25T12:26:59+00:00

TQMa6ULx - YOCTO Linux BSP documentation * Overview * Quickstart BSP * Deployment * How-To * Known Issues ---------- The STKa6ULx Starter Kit provides two Gigabit Ethernet interfaces. In U-Boot, end0 is configured as the default interface. The IP configuration can be done statically or by a DHCP server in the network.

i2c

Anonymous (anonymous@undisclosed.example.com) — 2026-03-25T12:38:36+00:00

TQMa6ULx - YOCTO Linux BSP documentation * Overview * Quickstart BSP * Deployment * How-To * Known Issues ---------- An overview of the onboard I2C devices is available here. Select the I2C bus device: i2c dev 3 Show all devices connected to the currently selected I2C bus: i2c probe

lvds

Anonymous (anonymous@undisclosed.example.com) — 2026-03-25T12:41:36+00:00

TQMa6ULx - YOCTO Linux BSP documentation * Overview * Quickstart BSP * Deployment * How-To * Known Issues ---------- TQ offers an optional LVDS Display kit for the STKa6x. Each Display can be used on its own by using the corresponding device tree. To allow reuse, the support for each display is separated in a

rtc

Anonymous (anonymous@undisclosed.example.com) — 2026-03-25T12:42:00+00:00

TQMa6ULx - YOCTO Linux BSP documentation * Overview * Quickstart BSP * Deployment * How-To * Known Issues ---------- To set the hardware clock to the current time and date use the following commands: date -s "YYYY-MM-DD hh:mm:[ss]" hwclock -w

sensors

Anonymous (anonymous@undisclosed.example.com) — 2026-03-25T12:48:44+00:00

TQMa6ULx - YOCTO Linux BSP documentation * Overview * Quickstart BSP * Deployment * How-To * Known Issues ---------- To read from the temperature sensors, the following command can be used: sensors Alternatively, read from the hwmon interface directly: cat /sys/class/hwmon/hwmon/temp1_input

sidebar

Anonymous (anonymous@undisclosed.example.com) — 2026-03-25T13:23:10+00:00

Starterkit Interfaces * Audio * CAN * CPU * Ethernet * GPIO Buttons * I2C * LVDS * RTC * SPI * Temperature Sensors * USB * User LEDs Development Host * Building Yocto SDK * Setup Eclipse Yocto Build System * Yocto Build System

spi

Anonymous (anonymous@undisclosed.example.com) — 2026-03-25T12:47:50+00:00

TQMa6ULx - YOCTO Linux BSP documentation * Overview * Quickstart BSP * Deployment * How-To * Known Issues ---------- The MBa6ULx has two SPI interfaces. They are available on the extension headers and can be tested with a loopback test. In order to determine the correct SPI interface name, the following command can be used:

start

Anonymous (anonymous@undisclosed.example.com) — 2026-03-25T10:57:40+00:00

TQMa6ULx - YOCTO Linux BSP documentation * Overview * Quickstart BSP * Deployment * How-To * Known Issues ----------

usb

Anonymous (anonymous@undisclosed.example.com) — 2026-03-25T12:49:01+00:00

TQMa6ULx - YOCTO Linux BSP documentation * Overview * Quickstart BSP * Deployment * How-To * Known Issues ---------- With lsusb you can see all connected usb devices. To mount a partition of a usb stick you can execute mount /dev/ (e.g. mount /dev/sdb1 /mnt). This will mount the first partition of sdb to /mnt.

user-led

Anonymous (anonymous@undisclosed.example.com) — 2026-03-25T12:51:16+00:00

TQMa6ULx - YOCTO Linux BSP documentation * Overview * Quickstart BSP * Deployment * How-To * Known Issues ---------- The MBa6ULx has two user-controllable LEDs, whose behavior can be selected by several triggers. The user LEDs are located in /sys/devices/platform/gpio-leds/leds/. To change the behaviour of a specific LED, the value in the file trigger must be overwritten.

yocto_build_system

Anonymous (anonymous@undisclosed.example.com) — 2026-03-25T12:58:38+00:00

TQMa6ULx - YOCTO Linux BSP documentation * Overview * Quickstart BSP * Deployment * How-To * Known Issues ----------

yocto-sdk

Anonymous (anonymous@undisclosed.example.com) — 2026-03-25T12:51:49+00:00

TQMa6ULx - YOCTO Linux BSP documentation * Overview * Quickstart BSP * Deployment * How-To * Known Issues ----------