1. Mx6ul core module uses serial can and buzzer test (XI)

The following is already in Iot-6ULX/EVB-6ULX The verification on the platform passed ,Iot-6ULX/EVB-6ULX Introduce the following ：

 

10. CAN test  

The development board is equipped with 1 road CAN Interface . test CAN Interface , Need to use CAN Test equipment , Realize data communication between development board and test equipment .

During the test, we use CAN Test module USBCAN-II To test . The connection diagram is as follows ：

CAN Test port wiring diagram  

Before you start testing , Confirm that the corresponding jumper base on the development board has been correctly shorted .

 CAN Schematic diagram of test jumper short circuit

  open CANTest Testing tools , According to the connection in USBCAN-II Select the corresponding channel for the interface on , Then confirm and start CANTest.

CAN Test tool channel selection  

Set by command in the terminal CAN Baud rate of the interface ：

[email protected] ~# ip link set can0 down                  // close can0

[email protected] ~# ip link set can0 type can bitrate 50000  // Set up can0 The baud rate is 50kbps

[email protected] ~# ip link set can0 up                     // open can0

[email protected] ~# ifconfig                               // see can0 Whether the device is turned on

Set up CAN Interface baud rate  

After setting up , Send data to CANTest Tools , Check whether the data can be received correctly ：

[email protected] ~#

for ((i = 1;$i <= 100; i++)) ;do cansend can0 01a#11223344AABBCCDD; cansend can0 1F334455#1122334455667788; done        // Send frames circularly ID by 01a, The data is 11223344AABBCCDD, frame ID by 1F334455, The data is 1122334455667788, various 100 frame

  Terminal test instructions

 CANTest Receiving data display

Set by command can0 The interface receives data , from CANTest Send data to the development board , View on terminal can0 Whether the data is received correctly ：

[email protected] ~# candump can0 &        // receive can0 data

  Terminal test instructions

After the terminal inputs the command , stay CANTest After the test tool operation panel sets the data to be sent , Click Send , Check whether the terminal can receive data .

CANTest send data

The terminal receives data and displays  

11.  Buzzer test

EVB-6ULX The development board is equipped with 1 A buzzer , Execute the following command to turn on or off the buzzer for testing ：

[email protected] ~# echo 129 > /sys/class/gpio/export             // establish GPIO129 node

[email protected] ~# echo out > /sys/class/gpio/gpio129/direction  // Set up IO The direction is output

[email protected] ~# echo 1 > /sys/class/gpio/gpio129/value  //IO The output is high , Turn on the buzzer

[email protected] ~# echo 0 > /sys/class/gpio/gpio129/value  //IO The output is low , Turn off the buzzer

  Terminal test instructions