
EVK-PH8800 User Manual
Embest Technology Co. Ltd | http://www.embest-tech.com 3
Catalog
Revision History ........................................................................................................................................................... 2
Catalog ......................................................................................................................................................................... 3
Release Note ................................................................................................................................................................ 5
1. Images Version ............................................................................................................................................. 5
2. Feature List................................................................................................................................................... 5
3. Known Issues ............................................................................................................................................... 6
Chapter 1 Quick Start ............................................................................................................................................... 7
1.1 Burn the System Images to the SD Card .................................................................................................. 7
1.2 System Boot from SD Card ....................................................................................................................... 8
1.3 System Boot from SPI Flash ..................................................................................................................... 9
Chapter 2 Function test .......................................................................................................................................... 11
2.1 LED ......................................................................................................................................................... 11
2.2 Button .................................................................................................................................................... 11
2.2.1 KEY_MENU, KEY_BACK............................................................................................................... 11
2.2.2 PWRON_RESETn ......................................................................................................................... 12
2.3 RTC ......................................................................................................................................................... 13
2.4 EEPROM ................................................................................................................................................. 13
2.5 EMMC .................................................................................................................................................... 14
2.6 ADC ........................................................................................................................................................ 15
2.7 Buzzer..................................................................................................................................................... 15
2.8 Audio ...................................................................................................................................................... 15
2.9 HDMI/VGA ............................................................................................................................................. 16
2.10 LCD ......................................................................................................................................................... 16
2.11 Backlight................................................................................................................................................. 16
2.12 Touchscreen ........................................................................................................................................... 16
2.13 Serial ...................................................................................................................................................... 16
2.13.1 UART1 ........................................................................................................................................ 16
2.13.2 UART4 ........................................................................................................................................ 17
2.14 RS485 ..................................................................................................................................................... 18
2.14.1 RS485-2 and RS485-3 ................................................................................................................. 18
2.14.2 RS485-1 and RS485-2 ................................................................................................................. 18
2.15 CAN ........................................................................................................................................................ 19