2.2.2.19.
SD Socket (SD1) ........................................................................................ 2 3
2.2.2.20.
M.2 (CN3) ................................................................................................. 2 3
2.3.
Mechanical . ...................................................................................................... 2 5
2.3.2. Board Dimensions ............................................................................................ 2 6
2.3.2.1.
Board Drawing . ......................................................................................... 2 6
2.4.
3.1.
Test Tools ......................................................................................................... 2 9
3.1.1. Display Test ...................................................................................................... 2 9
3.1.2. Video Playback . ................................................................................................ 2 9
3.1.3. Audio Test ........................................................................................................ 3 0
3.1.3.1.
Audio Playback ......................................................................................... 3 0
3.1.3.2.
Audio Recording ....................................................................................... 3 0
3.1.4. GPIO Test . ......................................................................................................... 3 1
3.1.4.1.
Export GPIO .............................................................................................. 3 1
3.1.4.2.
Loopback Test ........................................................................................... 3 1
3.1.5. I2C Test . ............................................................................................................ 3 2
3.1.5.1.
I2C Mapping ............................................................................................. 3 2
3.1.6. USB Test ........................................................................................................... 3 3
3.1.6.1.
USB Port Mapping .................................................................................... 3 3
3.1.6.2.
Test . .......................................................................................................... 3 4
3.1.7. RTC Test . ........................................................................................................... 3 4
3.1.7.1.
3.1.8.1.
3.1.8.2.
Write Protect ............................................................................................ 3 5
3.1.9. Ethernet Test .................................................................................................... 3 6
3.1.9.1.
Interface ................................................................................................... 3 6
3.1.9.2.
Change MAC Address . ............................................................................... 3 6
3.1.10. Watchdog Test . ................................................................................................. 3 7
3.1.11. SPI Test . ............................................................................................................ 3 8
3.1.12. 3G Test ............................................................................................................. 3 8
3.1.13. WiFi Test........................................................................................................... 3 9
3.1.14. Bluetooth Test .................................................................................................. 3 9
3.1.15. LED Test . ........................................................................................................... 4 0
3.1.16. M.2 Test ........................................................................................................... 4 0
3.1.17. GPS Test ........................................................................................................... 4 1
3.2.
Package Content . .............................................................................................. 4 1
2