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FAA20 Embedded NEXCOM Vocoder
Board Manual
This manual has been prepared for the Federal Aviation Administration.
FA100-00107 (March 2004) – Rev 1.0.0 Page iii
5.3.7 Voice Activity/Peak Detectors .............................................................................27
5.4 System Timing and Control .........................................................................................28
5.4.1 Truncated Timing Mode .......................................................................................28
5.4.2 Voice Delay............................................................................................................29
5.4.3 Programmable LEDs ............................................................................................31
5.4.4 Command Processor ............................................................................................33
6.0 ARCHITECTURAL DESCRIPTION..................................................................................... 34
6.1 Hardware Architecture..................................................................................................34
6.1.1 Hardware Block Diagram .....................................................................................34
6.1.2 Memory Maps ........................................................................................................36
6.2 Software Architecture ...................................................................................................39
6.2.1 Software Block Diagram.......................................................................................39
6.2.2 Tasks and Interrupts .............................................................................................40
6.2.3 Queues, Packets and Data Management .........................................................42
7.0 MAINTENANCE AND TEST................................................................................................ 44
7.1 Troubleshooting Tips ....................................................................................................44
7.2 Test and Integration Tools ...........................................................................................46
7.2.1 Audio Tools ............................................................................................................46
7.2.2 Nibble Tools ...........................................................................................................48
7.2.3 PCM Tools ..............................................................................................................48
7.3 Upgrading FAA20 Software.........................................................................................49
7.3.1 Standard Mode Upgrade......................................................................................49
7.3.2 Acknowledgement Mode Upgrade .....................................................................51
7.4 Vocoder Test Vector Support ......................................................................................53
7.4.1 Test Vector Execution..........................................................................................53
7.4.2 DAT2LIN Utility......................................................................................................55
7.4.3 BIT2CMP Utility.....................................................................................................56
8.0 TERMINAL COMMAND REFERENCE............................................................................... 57
8.1 Command Overview .....................................................................................................57
8.2 Built-In Help ....................................................................................................................59
8.3 Command Reference....................................................................................................60
8.3.1 ADAPT....................................................................................................................61
8.3.2 BIT ...........................................................................................................................62
8.3.3 CFG.........................................................................................................................65
8.3.4 CLKDET..................................................................................................................67
8.3.5 CLKRATE ...............................................................................................................68
8.3.6 CLKREF..................................................................................................................70
8.3.7 CLKSRC .................................................................................................................71
8.3.8 COMCFG................................................................................................................72
8.3.9 COMECHO.............................................................................................................73
8.3.10 COMPROMPT.......................................................................................................74
8.3.11 COUNT ...................................................................................................................75
- FA100-00107 1
- BOARD MANUAL 1
- Board Manual 2
- 1.0 INTRODUCTION 7
- 2.0 GENERAL DESCRIPTION 9
- 2.2 Features 10
- 3.1 Main Signal Connector 11
- Table 1: DIN Signals 12
- 3.2 Terminal Connectors 15
- 3.3 Audio Connectors 16
- 3.4 LED Indicators 17
- 3.5 Switch Controls 18
- 4.0 INSTALLATION 19
- 4.3.1 Timing Configuration 20
- 5.0 FUNCTIONAL DESCRIPTION 23
- 5.1.3 DEMO Mode 24
- 5.2 Interfaces 25
- 5.2.3 NIB Interface 26
- 5.3 Voice Processing 28
- PACKET VOICE ROUTER 31
- 5.4.1 Truncated Timing Mode 34
- 5.4.2 Voice Delay 35
- 5.4.3 Programmable LEDs 37
- 5.4.4 Command Processor 39
- 6.1 Hardware Architecture 40
- 6.1.2 Memory Maps 42
- Figure 17: Data Memory Map 43
- Figure 19: Flash Memory Map 44
- 6.2 Software Architecture 45
- Table 8: Thread List 47
- 7.0 MAINTENANCE AND TEST 50
- 7.2.1 Audio Tools 52
- 7.2.2 Nibble Tools 54
- 7.2.3 PCM Tools 54
- 7.3.1 Standard Mode Upgrade 55
- 7.4.1 Test Vector Execution 59
- 7.4.2 DAT2LIN Utility 61
- 7.4.3 BIT2CMP Utility 62
- 8.1 Command Overview 63
- 8.2 Built-In Help 65
- 8.3 Command Reference 66
- 8.3.1 ADAPT 67
- 8.3.2 BIT 68
- Latched 70
- 8.3.3 CFG 71
- 8.3.4 CLKDET 73
- 8.3.5 CLKRATE 74
- 8.3.6 CLKREF 76
- 8.3.7 CLKSRC 77
- 8.3.8 COMCFG 78
- 8.3.9 COMECHO 79
- 8.3.10 COMPROMPT 80
- 8.3.11 COUNT 81
- 8.3.12 DELAY 83
- 8.3.13 DM 84
- 8.3.14 DUMP 85
- 8.3.15 FLASH 86
- 8.3.16 FM 87
- 8.3.17 FRAMESIZE 88
- 8.3.18 GAM 89
- 8.3.19 IO 90
- 8.3.20 LED 91
- 8.3.21 LOOP 92
- 8.3.22 MACRO 93
- 8.3.23 MCBSP 94
- 8.3.24 MIX 95
- 8.3.25 OPMODE 96
- 8.3.26 PROG 97
- 8.3.27 REM 98
- 8.3.28 RESET 99
- 8.3.29 ROUTE 100
- 8.3.30 TEST 101
- 8.3.31 TONE 103
- 8.3.32 TRUN 104
- 8.3.33 VERSION 105
- 8.3.34 VOC 106
- 8.3.35 WAIT 108
- 9.0 GLOSSARY 109
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