Embedded module en tqma8mpxl TQMa8MPxL arm linux yocto YOCTO Linux ===== Starterkit Interfaces and Functions =====

The microphone input is not supported in the current BSP version. X15 X16 X17 MBa8MPxL {{ :en:arm:tqma8mpxl:linux:yocto:mba8mpxl_audio.png?nolink&400 |}}

The MBa8MPxL has two GPIO buttons, they are bound to the gpio-keys driver. | S12 | Button 0 | | S13 | Button 1 | {{ :en:arm:tqma8mpxl:linux:yocto:mba8mpxl_gpio-button.png?nolink&400 |}} /dev/input/event1 evtest /dev/input/event1

The MBa8MPxL provides the CAN interfaces CAN0 and CAN1. CAN FD can not be automatically configured by systemd machine units due to a limitation in the systemd version in Yocto Zeus,\\\ it can be enabled by the following commands in the shell: \\\


ip link set can0 down
ip link set can0 up type can bitrate 500000 sample-point 0.75 dbitrate 4000000 dsample-point 0.8 fd on
ip link set can1 down
ip link set can1 up type can bitrate 500000 sample-point 0.75 dbitrate 4000000 dsample-point 0.8 fd on

DIP switch S10 is used to configure the CAN interfaces CAN0 and CAN1. S10-1 S10-2 {{ :en:arm:tqma8mpxl:linux:yocto:mba8mpxl_can_loopback.png?nolink&400 |}}

STKa8MPxL

The TQMa8MPxL Starterkit provides two Gigabit Ethernet interfaces. In U-Boot eth0 is configured as default interface. The IP configuration can be done statically or by a DHCP server in the network. Both Ethernet interfaces are activated and configured by systemd-networkd. The configuration files for the interfaces are located in /lib/systemd/network/ these configuration files can be altered to customize the default interface configuration. | eth0 | 10-eth0.network | | eth1 | 10-eth1.network ||

STKa8MPxL imx8mp-tqma8mpql-mba8mpxl-hdmi.dtb''

tqma8mpxl arm 0 0

STKa8MPxL imx8mp-mba8mpxl-lvds-tm070jvhg33.dtb''

arm EMB_QSG_CAM_KIT_STKa8MPxL_Rev 001 imx8mp-mba8mpxl-hdmi-imx327.dtb setenv imx8mp-mba8mpxl-hdmi-ov9281.dtb


cat /sys/devices/platform/soc@0/30800000.bus/30a20000.i2c/i2c-0/0-001b/hwmon/hwmon0/temp1_input

**Read MBa8MPxL Temperature Sensor**


cat /sys/devices/platform/soc@0/30800000.bus/30a20000.i2c/i2c-0/0-001c/hwmon/hwmon1/temp1_input

**Read CPU internal Temperature Sensor**\\\ The i.MX8MPxL CPU has an internal TMU that supports two thermal zones, both can be read by the commands below: **Thermal zone0**


cat /sys/devices/virtual/thermal/thermal_zone0/temp

**Thermal zone1**


cat /sys/devices/virtual/thermal/thermal_zone1/temp

The temperature is shown in millidegrees Celsius.

The MBa8MPxL has three user controllable LEDs, the behavior of these LEDs can be selected by several triggers. | V55 | led0 | green | /sys/class/leds/led0 | | V56 | led1 | green | /sys/class/leds/led1 | | V60 | led2 | orange | /sys/class/leds/led2 | {{ :en:arm:tqma8mpxl:linux:yocto:mba8mpxl_user_led.png?nolink&300 |}} /sys/devices/platform/gpio-leds/leds/ led2 /sys/class/leds/led2/trigger ==== SSH Connection ====

STKa8MPxL