https://support.tq-group.com/ 2026-04-20T23:50:23+00:00 https://support.tq-group.com/ https://support.tq-group.com/_media/logo.png text/html 2026-03-10T10:06:07+00:00 Anonymous (anonymous@undisclosed.example.com) https://support.tq-group.com/en/arm/tqma8xx4/linux/yocto/how-to/audio?rev=1773137167&do=diff TQMa8Xx4 - YOCTO Linux BSP documentation * Overview * Quickstart BSP * Deployment * How-To * Known Issues ---------- Connector Function X8 Microphone X9 Line In X10 Line Out The microphone input is not supported in the current BSP version. Play Audio on MBa8Xx A simple test sound can be played with the command-line tool speaker-test. text/html 2026-03-10T10:11:13+00:00 Anonymous (anonymous@undisclosed.example.com) https://support.tq-group.com/en/arm/tqma8xx4/linux/yocto/how-to/buttons?rev=1773137473&do=diff TQMa8Xx4 - YOCTO Linux BSP documentation * Overview * Quickstart BSP * Deployment * How-To * Known Issues ---------- The MBa8Xx features two user buttons which are handled by the gpio-keys driver. Reference Button S2 BTN0 S3 BTN1 The buttons are accessible via the input device interface. You can identify the correct event node and test the buttons using the evtest tool: text/html 2026-03-09T12:27:45+00:00 Anonymous (anonymous@undisclosed.example.com) https://support.tq-group.com/en/arm/tqma8xx4/linux/yocto/how-to/can?rev=1773059265&do=diff TQMa8Xx4 - YOCTO Linux BSP documentation * Overview * Quickstart BSP * Deployment * How-To * Known Issues ---------- The MBa8Xx provides two CAN interfaces: CAN0 and CAN1. DIP switch SW1 is used to configure CAN0. Function SW1-1 SW1-2 CAN-Bus not terminated OFF OFF not defined (illegal state) text/html 2026-03-09T12:33:12+00:00 Anonymous (anonymous@undisclosed.example.com) https://support.tq-group.com/en/arm/tqma8xx4/linux/yocto/how-to/cpu?rev=1773059592&do=diff TQMa8Xx4 - YOCTO Linux BSP documentation * Overview * Quickstart BSP * Deployment * How-To * Known Issues ---------- The STKa8Xx4 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. text/html 2026-03-09T14:21:03+00:00 Anonymous (anonymous@undisclosed.example.com) https://support.tq-group.com/en/arm/tqma8xx4/linux/yocto/how-to/eclipse?rev=1773066063&do=diff TQMa8Xx4 - YOCTO Linux BSP documentation * Overview * Quickstart BSP * Deployment * How-To * Known Issues ---------- text/html 2026-03-09T12:36:41+00:00 Anonymous (anonymous@undisclosed.example.com) https://support.tq-group.com/en/arm/tqma8xx4/linux/yocto/how-to/ethernet?rev=1773059801&do=diff TQMa8Xx4 - YOCTO Linux BSP documentation * Overview * Quickstart BSP * Deployment * How-To * Known Issues ---------- The STKa8Xx4 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. text/html 2026-03-09T12:44:13+00:00 Anonymous (anonymous@undisclosed.example.com) https://support.tq-group.com/en/arm/tqma8xx4/linux/yocto/how-to/gpu?rev=1773060253&do=diff TQMa8Xx4 - YOCTO Linux BSP documentation * Overview * Quickstart BSP * Deployment * How-To * Known Issues ---------- To run the GPU benchmark in fullscreen mode with a connected display, execute the following command: glmark2-es2-wayland --fullscreen text/html 2026-03-10T10:11:51+00:00 Anonymous (anonymous@undisclosed.example.com) https://support.tq-group.com/en/arm/tqma8xx4/linux/yocto/how-to/i2c?rev=1773137511&do=diff TQMa8Xx4 - 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 1 Show all devices connected to the currently selected I2C bus: i2c probe text/html 2026-03-09T12:53:13+00:00 Anonymous (anonymous@undisclosed.example.com) https://support.tq-group.com/en/arm/tqma8xx4/linux/yocto/how-to/lvds?rev=1773060793&do=diff TQMa8Xx4 - YOCTO Linux BSP documentation * Overview * Quickstart BSP * Deployment * How-To * Known Issues ---------- TQ offers an optional LVDS Display kit for the STKa8Xx4. 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 text/html 2026-03-09T14:21:47+00:00 Anonymous (anonymous@undisclosed.example.com) https://support.tq-group.com/en/arm/tqma8xx4/linux/yocto/how-to/mcuexample?rev=1773066107&do=diff TQMa8Xx4 - YOCTO Linux BSP documentation * Overview * Quickstart BSP * Deployment * How-To * Known Issues ---------- text/html 2026-03-09T12:54:52+00:00 Anonymous (anonymous@undisclosed.example.com) https://support.tq-group.com/en/arm/tqma8xx4/linux/yocto/how-to/rtc?rev=1773060892&do=diff TQMa8Xx4 - 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 text/html 2026-03-09T13:00:19+00:00 Anonymous (anonymous@undisclosed.example.com) https://support.tq-group.com/en/arm/tqma8xx4/linux/yocto/how-to/sensors?rev=1773061219&do=diff TQMa8Xx4 - 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<N>/temp1_input text/html 2026-03-09T14:25:37+00:00 Anonymous (anonymous@undisclosed.example.com) https://support.tq-group.com/en/arm/tqma8xx4/linux/yocto/how-to/sidebar?rev=1773066337&do=diff Starterkit Interfaces * Audio * CAN * CPU * Ethernet * GPIO Buttons * GPU * I2C * LVDS * RTC * SPI * Temperature Sensors * USB * User LEDs Development Host * Building Yocto SDK * Setup Eclipse * Building Cortex M4 Examples with MCUXpresso * Building System Controller Firmware for STKa8x and Integation into the BSP * Setup Qt Creator Yocto Build System * Yocto Build System text/html 2026-03-10T10:30:24+00:00 Anonymous (anonymous@undisclosed.example.com) https://support.tq-group.com/en/arm/tqma8xx4/linux/yocto/how-to/spi?rev=1773138624&do=diff TQMa8Xx4 - YOCTO Linux BSP documentation * Overview * Quickstart BSP * Deployment * How-To * Known Issues ---------- The MBa8Xx has three 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: text/html 2026-03-09T11:04:08+00:00 Anonymous (anonymous@undisclosed.example.com) https://support.tq-group.com/en/arm/tqma8xx4/linux/yocto/how-to/start?rev=1773054248&do=diff TQMa8Xx4 - YOCTO Linux BSP documentation * Overview * Quickstart BSP * Deployment * How-To * Known Issues ---------- text/html 2026-03-09T14:22:28+00:00 Anonymous (anonymous@undisclosed.example.com) https://support.tq-group.com/en/arm/tqma8xx4/linux/yocto/how-to/systemcontrollerfw?rev=1773066148&do=diff TQMa8Xx4 - YOCTO Linux BSP documentation * Overview * Quickstart BSP * Deployment * How-To * Known Issues ---------- text/html 2026-03-09T13:02:04+00:00 Anonymous (anonymous@undisclosed.example.com) https://support.tq-group.com/en/arm/tqma8xx4/linux/yocto/how-to/usb?rev=1773061324&do=diff TQMa8Xx4 - 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/<partition> <mount dir> (e.g. mount /dev/sdb1 /mnt). This will mount the first partition of sdb to /mnt. text/html 2026-03-10T10:35:36+00:00 Anonymous (anonymous@undisclosed.example.com) https://support.tq-group.com/en/arm/tqma8xx4/linux/yocto/how-to/user-led?rev=1773138936&do=diff TQMa8Xx4 - YOCTO Linux BSP documentation * Overview * Quickstart BSP * Deployment * How-To * Known Issues ---------- The MBa8Xx 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. text/html 2026-03-09T14:25:16+00:00 Anonymous (anonymous@undisclosed.example.com) https://support.tq-group.com/en/arm/tqma8xx4/linux/yocto/how-to/yocto_build_system?rev=1773066316&do=diff TQMa8Xx4 - YOCTO Linux BSP documentation * Overview * Quickstart BSP * Deployment * How-To * Known Issues ---------- text/html 2026-03-09T14:20:39+00:00 Anonymous (anonymous@undisclosed.example.com) https://support.tq-group.com/en/arm/tqma8xx4/linux/yocto/how-to/yocto-sdk?rev=1773066039&do=diff TQMa8Xx4 - YOCTO Linux BSP documentation * Overview * Quickstart BSP * Deployment * How-To * Known Issues ----------