Nuvoton ARM ARM926EL-S, Руководство пользователя

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NuMaker-emWin-RDK-N9H20
Mar. 26, 2021 Page 2 of 25 Rev 1.11
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Table of Contents
1 OVERVIEW
......................................................................................... 3
Brief Introduction to NuMaker-emWin-RDK-N9H20 Demo Board
............................. 4
PCB key parts description
............................................................................ 4
System Circuitry design notes
....................................................................... 6
1.3.1 Main Clock
....................................................................................................... 6
1.3.2 RTC Clock
....................................................................................................... 6
1.3.3 RESET
............................................................................................................ 7
1.3.4 Power-on Setting
............................................................................................... 7
1.3.5 Power Desing Notes
........................................................................................... 8
2 PCB Layout Design Note.
...................................................................... 10
USB
..................................................................................................... 10
Signal integrity, SI
.................................................................................... 11
Power supply and power filter design consideration
............................................ 12
2.3.1 DDR MVDD & Core Power 1.8V Design
.................................................................. 12
2.3.2 I/O 3.3V Power Design
....................................................................................... 13
Main Clock 12MHz Design Suggestion
........................................................... 14
RESET Layout Suggestion
......................................................................... 15
3 NuMaker-emWin-RDK-N9H20 demo board use description
.............................. 16
System start up
........................................................................................ 16
USB Port
............................................................................................... 18
Communication Interface (UART0) uses
.......................................................... 18
LCD Interface
.......................................................................................... 18
4 Test Report
........................................................................................ 19
Power consumption
.................................................................................. 19
ESD Test Report
...................................................................................... 19
EFT Test Result
....................................................................................... 20
EMI Test Result
....................................................................................... 20
5 NuMaker-emWin-RDK-N9H20 demo board SCHEMATIC
................................ 22
N9H20 Schematic
.................................................................................... 22
LCD Schematic
........................................................................................ 23
Power Schematic
..................................................................................... 24
6 REVISION HISTORY
............................................................................ 25