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
AN706-00040-2v0-E
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Audio stage judgment
2
Open
Set initialization for audio stage.
1
Set library initialization for audio stage.
Open audio file.
(audio_decode_open)
Audio file opened successfully?
No
Yes
Library initialization
Set stop for audio stage.
1
Set analyze for audio stage.
Initialize decode library.
(audio_decode_libraryinit)
Decode library
successfully initialized?
No
Yes
Set stop for audio stage.
1
Set file read for audio stage.
Analyze audio file header
(audio_decode_analyze)
Audio file header
analyzed successfully?
No
Yes
Analyze
3
File read
Decode
Sampling
Stop
Others
Figure 63 AUDIO Task Processing Function Flow (2)