Table of Contents
1 Overview ........................................................................... 1
1.1 Product Information .........................................................1
1.2 Kit contents ....................................................................1
1.3 Board Interfaces..............................................................2
1.4 System Block Diagram .....................................................3
1.5 Physical Dimensions.........................................................4
2 Hardware Features ............................................................ 5
2.1 Processor .......................................................................5
2.2 On-Board Memory ...........................................................5
2.3 Core Board Functions .......................................................6
2.4 Main Board Functions .......................................................6
3 Hardware Details............................................................... 8
3.1 Interfaces .......................................................................8
3.1.1 Power（J26，J1）...................................................................... 8
3.1.2 NET0（J3）............................................................................... 8
3.1.3 NET1（J12）............................................................................. 9
3.1.4 UART（8 channels）................................................................. 10
3.1.5 DEBUG（DEBUG）.................................................................... 10
3.1.6 COM0, 1 (COM0, COM1) ........................................................... 10
3.1.7 COM2（COM2）....................................................................... 11
3.1.8 EXT_COM（J23）..................................................................... 12
3.1.9 Matrix keyboard（J16）............................................................ 13
3.1.10 USB device（J9）................................................................... 14
3.1.11 USB HOST（J5）.................................................................... 15
3.1.12 SD card（J15）...................................................................... 15
3.1.13 Audio (J17,J18) ..................................................................... 15
3.1.14 JTAG (J8).............................................................................. 16
