Texas Instruments TMS320 DSP Manuale Utente Pagina 6
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List of Figures
1-1 TMS320 DSP Algorithm Standard Elements ........................................................................... 10
1-2 DSP Software Architecture ................................................................................................ 13
2-1 Scratch vs Persistent Memory Allocation ............................................................................... 21
2-2 Data Memory Types ....................................................................................................... 22
3-1 Module Interface and Implementation ................................................................................... 26
3-2 Module Object Creation ................................................................................................... 29
3-3 Example Module Object ................................................................................................... 29
3-4 Example Implementation of IALG Interface ............................................................................. 33
4-1 Execution Timeline for Two Periodic Tasks ............................................................................ 42
5-1 Register Types .............................................................................................................. 46
6-1 Transfer Properties for a 1-D Frame ..................................................................................... 64
6-2 Frame Index and 2-D Transfer of N-1 Frames ......................................................................... 64
6 List of Figures SPRU352G – June 2005 – Revised February 2007
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- User's Guide 1
- Submit Documentation Feedback 2
- Contents 3
- Read This First 7
- Related Documentation 8
- Text Conventions 8
- Overview 9
- 1.1 Scope of the Standard 10
- 1.1.1 Rules and Guidelines 11
- 1.3 Goals of the Standard 12
- 1.4 Intentional Omissions 12
- 1.5 System Architecture 13
- 1.5.1 Frameworks 13
- 1.5.2 Algorithms 14
- 1.5.3 Core Run-Time Support 14
- Chapter 2 15
- 2.1 Use of C Language 16
- 2.2 Threads and Reentrancy 16
- 2.2.1 Threads 16
- 2.2.3 Reentrancy 17
- 2.2.4 Example 18
- 2.3 Data Memory 19
- 2.3.1 Memory Spaces 20
- Data Memory 21
- 2.4 Program Memory 23
- 2.5 ROM-ability 23
- 2.6 Use of Peripherals 24
- Algorithm Component Model 25
- 3.1 Interfaces and Modules 26
- 3.1.1 External Identifiers 27
- 3.1.2 Naming Conventions 28
- 3.1.4 Module Instance Objects 28
- Interfaces and Modules 29
- 3.1.7 Module Configuration 30
- 3.1.8 Example Module 30
- 3.1.10 Interface Inheritance 32
- 3.1.11 Summary 32
- 3.2 Algorithms 33
- 3.3 Packaging 34
- 3.3.1 Object Code 34
- 3.3.2 Header Files 35
- 3.3.3 Debug Verses Release 35
- Packaging 36
- Chapter 4 37
- 4.1 Data Memory 38
- 4.1.1 Heap Memory 38
- 4.1.2 Stack Memory 39
- 4.2 Program Memory 40
- 4.3 Interrupt Latency 41
- 4.4 Execution Time 41
- 4.4.1 MIPS Is Not Enough 41
- 4.4.2 Execution Time Model 42
- Execution Time 43
- DSP-Specific Guidelines 45
- 5.1 CPU Register Types 46
- 5.2 Use of Floating Point 47
- 5.3.1 Endian Byte Ordering 47
- 5.3.2 Data Models 47
- 5.3.3 Program Model 47
- 5.3.4 Register Conventions 48
- 5.3.5 Status Register 48
- 5.3.6 Interrupt Latency 49
- 5.4.1 Data Models 49
- 5.4.2 Program Models 49
- 5.4.3 Register Conventions 51
- 5.4.4 Status Registers 51
- 5.4.5 Interrupt Latency 52
- 5.5.1 Stack Architecture 52
- 5.5.2 Data Models 52
- 5.5.3 Program Models 53
- 5.5.4 Relocatability 53
- 5.5.5 Register Conventions 54
- 5.5.6 Status Bits 55
- 5.6 TMS320C24xx Guidelines 57
- 5.6.1 General 57
- 5.6.2 Data Models 57
- 5.6.3 Program Models 57
- 5.6.4 Register Conventions 57
- 5.6.5 Status Registers 58
- 5.6.6 Interrupt Latency 58
- 5.7.1 Data Models 58
- 5.7.2 Program Models 59
- 5.7.3 Register Conventions 59
- 5.7.4 Status Registers 59
- 5.7.5 Interrupt Latency 60
- Use of the DMA Resource 61
- 6.1 Overview 62
- 6.2 Algorithm and Framework 62
- 6.4 Logical Channel 63
- 6.5 Data Transfer Properties 64
- 6.7 Abstract Interface 65
- 6.8 Resource Characterization 66
- 6.9 Runtime APIs 67
- 6.15.1 Non-Preemptive System 71
- 6.15.3 Preemptive System 72
- Rules and Guidelines 75
- A.1 General Rules 76
- A.3 DMA Rules 77
- A.4 General Guidelines 78
- A.5 DMA Guidelines 79
- Core Run-Time APIs 81
- Bibliography 83
- Glossary 85
- Glossary of Terms 86
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