Auvidea X221-LC - Page 3

X221, -LC, -AI
TECHNICAL REFERENCE MANUAL
VERSION: 1.7
Page 3 of 43
Feb.202
5.26 J33 – USB(2) ............................................................................................................................................... 24
5.27 J34 – USB(1) ............................................................................................................................................... 24
5.28 J35 - POWER OUT....................................................................................................................................... 24
5.29 J36 - I2S2 .................................................................................................................................................... 24
5.1 RGB LED ..................................................................................................................................................... 24
SECTION 6 FAQ ........................................................................................................... 25
SECTION 7 Disclaimer .................................................................................................. 26
SECTION 8 Copyright notice ......................................................................................... 27
SECTION 9 Appendix A [CSI-Cameras] .......................................................................... 28
9.1 Camera connection example ..................................................................................................................... 28
9.2 Test CSI-Camera functionality .................................................................................................................... 29
SECTION 10 Appendix B [GPIO] ..................................................................................... 30
10.1 GPIO control .............................................................................................................................................. 30
10.1.1 Export GPIO ....................................................................................................................................... 30
10.1.2 Change direction to in ....................................................................................................................... 30
10.1.3 Change direction to out ..................................................................................................................... 30
10.1.4 Set GPIO low ...................................................................................................................................... 30
10.1.5 Set GPIO high ..................................................................................................................................... 30
10.1.6 Readout GPIO value........................................................................................................................... 30
10.2 Pin to GPIO reference sheet for Xavier-NX/Nano/TX2-NX ........................................................................ 31
10.3 How to calculate GPIOs.............................................................................................................................. 33
10.3.1 GPIOnumber ...................................................................................................................................... 33
10.3.2 GPIOletter .......................................................................................................................................... 33
10.3.3 GPIOdigit ........................................................................................................................................... 33
10.3.4 GPIOoffset ......................................................................................................................................... 33
10.3.5 Example ............................................................................................................................................. 33
10.3.6 Table .................................................................................................................................................. 34
SECTION 11 Appendix C [I2C] ........................................................................................ 35
11.1 I2C device bus ............................................................................................................................................ 35
11.2 I2C usage of devices and registers ............................................................................................................. 35
11.2.1 List i2c devices on a specific bus ........................................................................................................ 35
11.2.2 Dump i2c device registers .................................................................................................................. 36
11.2.3 Set register value: .............................................................................................................................. 36
11.2.4 Read register value: ........................................................................................................................... 36
11.2.5 Test IMX219 camera stream ............................................................................................................. 36
SECTION 12 Appendix D [SSD-Boot] ............................................................................... 37
SECTION 13 Appendix E [Wi-Fi] ..................................................................................... 38
13.1 Options from AUVIDEA .............................................................................................................................. 38