User Manual
Table Of Contents
- Revision History
- Table of Contents
- Target products
- 1 INTRODUCTION
- 2 OVERVIEW OF SIMPLE AV SYSTEM BOARD
- 3 PREPARATIONS
- 4 PROGRAM EXECUTION METHOD
- 5 SUPPORTED MEDIA
- 6 OPERATION METHOD
- 7 SPECIFICATIONS
- 7.1 Hardware
- 7.2 Software
- 7.2.1 Software Block Diagram
- 7.2.2 Software Library
- 7.2.3 System Specifications
- 7.2.4 API Specifications
- 7.2.5 Operation Limit
- 7.2.6 Operation Flow of Entire Application
- 7.2.7 Application State Transition
- 7.2.8 Operation Flow
- 7.2.8.1 Main Processing Function
- 7.2.8.2 USB Task Processing Function
- 7.2.8.3 File System (MDF) Task Processing Function
- 7.2.8.4 HMI Task Processing Function
- 7.2.8.5 AUDIO Play Task Processing Function
- 7.2.8.6 Switch Press Detection Processing Function
- 7.2.8.7 Processing Function After Switch Press Detection
- 7.2.8.8 Touch Panel Touch Detection Processing Function
- 7.2.8.9 Processing After Touch Panel Touch Detection Function
- 7.2.9 File Configuration
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7.1.6.2 Key Input Switch
The LCD board is equipped with a power switch. The external appearance and connection
diagram of the key input switch are shown in Figure 35.
Selection Prev
Switch
Selection Next
Switch
Play/Stop Switch
Microcontroller
Pressed Down: L
Not Pressed Down: H
Pin No.52:P71
+3.3V
Selection Prev Switch (P68)
Selection Next Switch (P71)
Play/Stop Switch (P73)
Pin No.108:P68
Pin No.54:P73
Figure 35 Key Input Switch External Appearance and Connection Diagram
7.1.6.3 Reset Switch
The microcontroller board is equipped with a reset switch. The external appearance and
connection diagram of the reset switch are shown in Figure 36.
Reset Switch
Microcontroller
+3.3V
Reset Switch(Reset)
Pin No.43:INITX
Pressed Down: L (Reset Active)
Not Pressed Down: H
Reset Switch
Microcontroller
+3.3V
Reset Switch(Reset)
Pin No.43:INITX
Pressed Down: L (Reset Active)
Not Pressed Down: H
Figure 36 Reset Switch External Appearance and Connection Diagram