User guide

M80 EVB User Guide
M80_EVB_User_Guide_V1.2 - 2 -
Contents
Contents ............................................................................................................................................ 2
Table Index ........................................................................................................................................ 4
Figure Index ...................................................................................................................................... 5
0. Revision history ............................................................................................................................ 7
1. Introduction ................................................................................................................................... 8
1.0. Related documents .............................................................................................................. 8
1.1. Safety precautions ............................................................................................................... 8
2. EVB kit ....................................................................................................................................... 10
2.1. EVB top and bottom view ................................................................................................. 10
2.2. EVB Accessories ............................................................................................................... 11
3. Application .................................................................................................................................. 12
3.1. Power................................................................................................................................. 12
3.1.1. LDO ......................................................................................................................... 12
3.1.2. Test point ................................................................................................................. 13
3.2. Charging ............................................................................................................................ 14
3.3. Audio ................................................................................................................................. 15
3.3.1. Handset .................................................................................................................... 15
3.3.2. Earphone .................................................................................................................. 17
3.3.3. Loud speaker ........................................................................................................... 18
3.3.4. PCM interface .......................................................................................................... 19
3.4. SIM Card ........................................................................................................................... 21
3.4.1. SIM1 card interface ................................................................................................. 21
3.4.2. SIM2 card interface ................................................................................................. 22
3.5. Antenna ............................................................................................................................. 24
3.6. Communication ................................................................................................................. 25
3.6.1. Main UART ............................................................................................................. 25
3.6.2. Auxiliary UART and Debug UART ........................................................................ 27
3.6.3. USB ......................................................................................................................... 29
3.7. SD card .............................................................................................................................. 31
3.8. Camera .............................................................................................................................. 34
3.8.1. Analog camera ......................................................................................................... 34
3.8.2. Digital camera ......................................................................................................... 36
3.9. Switches and buttons ......................................................................................................... 38
3.10. LED indicator .................................................................................................................. 39
3.11. LCD ................................................................................................................................. 39
3.13. Keyboard ......................................................................................................................... 40
3.14. ADC ................................................................................................................................ 40
4. EVB accessories assembly .......................................................................................................... 42
5. Illustration ................................................................................................................................... 43
5.1. Turn on the module ........................................................................................................... 43
5.2. Turn off the module ........................................................................................................... 43
Quectel
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