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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7.2.4.4 Switch Detection API
Function
void SW_Init (void)
Overview
Switch detection processing initialization function
Invoked before entering the main loop (see “7.2.8.1 Main Processing
Function”).
Parameter
None
Return
value
None
Function
STATUS SW_GetStatus(uint8_t ButtonId, uint8_t *pStatus)
Overview
Switch status acquisition function
Parameter
ButtonId Switch No.
0 Play/Stop switch
1 Song selection next switch
2 Song selection previous switch
pStatus Pointer for place where switch status is stored
SW_NO_PUSH Not pressed
SW_PUSH Pressed
Return
value
Processing results
SW_RET_OK Normal completion
SW_RET_INVALID_PARAMETER Parameter error