VxWorks6.8BSP编程向导_d525cpu用什么格式什么引导资源-CSDN文库

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VxWorks

BSP DEVELOPER'S GUIDE

6.8

VxWorks BSP Developer's Guide, 6.8

iii

Contents

1 Introduction ................................................................................................. 1

1.1 About This Document .................................................................................................... 1

1.2 The Board Support Package .......................................................................................... 2

1.3 The BSP Development Process ..................................................................................... 3

1.4 Terminology ..................................................................................................................... 3

2 Overview of a BSP ...................................................................................... 5

2.1 Introduction ...................................................................................................................... 5

2.2 Boot Sequence .................................................................................................................. 7

2.2.1 Sequence Overview .......................................................................................... 7

2.2.2 Boot Sequence Configurations ........................................................................ 9

2.2.3 Architecture Considerations ............................................................................ 12

2.2.4 Detailed Boot Sequence .................................................................................... 13

2.3 Components of a BSP ..................................................................................................... 17

2.3.1 Source and Include Files .................................................................................. 17

README ............................................................................................................ 19

Makefile .............................................................................................................. 19

config.h ............................................................................................................... 19

bspname.h .......................................................................................................... 19

sysALib.s ............................................................................................................ 20

romInit.s .............................................................................................................. 20

sysLib.c ............................................................................................................... 21

target.ref or target.nr ......................................................................................... 21

board.jpg ............................................................................................................. 21

sysDev.c .............................................................................................................. 22

configAll.h .......................................................................................................... 23

bootInit.c ............................................................................................................. 23

usrConfig.c ......................................................................................................... 23

2.3.2 Derived Files ...................................................................................................... 23

VxWorks

BSP Developer's Guide, 6.8

2.3.3 Required Data Variables .................................................................................. 24

sysPhysMemDesc[ ] .......................................................................................... 24

sysPhysMemDescNumEnt .............................................................................. 26

sysBootLine ........................................................................................................ 26

sysExcMsg .......................................................................................................... 26

sysFlags ............................................................................................................... 26

hcfDeviceList[ ] .................................................................................................. 26

hcfDeviceNum ................................................................................................... 26

devUnitCfgData[ ] ............................................................................................. 27

2.3.4 Required Routines ............................................................................................. 27

sysBspRev( ) ....................................................................................................... 27

Timer Driver Routines ..................................................................................... 28

sysMemTop( ) .................................................................................................... 28

sysPhysMemTop( ) ............................................................................................ 29

sysModel( ) ......................................................................................................... 30

NVRAM Routines ............................................................................................. 30

Hardware Initialization Routines ................................................................... 30

sysSerialChanGet( ) ........................................................................................... 31

sysToMonitor( ) .................................................................................................. 31

2.3.5 Required Macros ............................................................................................... 32

2.3.6 Optional Routines ............................................................................................. 35

2.3.7 Hardware Considerations ................................................................................ 35

2.4 The Development Environment ................................................................................... 36

2.4.1 BSP Debugging Methods ................................................................................. 37

Primitive Tools .................................................................................................. 37

Native Debug ROMs ........................................................................................ 37

ROM Emulator ................................................................................................. 37

On-Chip Debugging (OCD) Devices .............................................................. 38

Logic Analyzer ................................................................................................... 38

In-Circuit Emulator ........................................................................................... 39

2.4.2 WDB Debugging Interface .............................................................................. 39

2.4.3 Workbench Libraries and Tools ....................................................................... 40

2.4.4 Compiler and Tool Choice .............................................................................. 40

2.4.5 Download Path ................................................................................................. 41

2.5 Common Problems ......................................................................................................... 42

2.5.1 Failing to Include LOCAL_MEM_LOCAL_ADRS ....................................... 42

2.5.2 Providing Too Much Device Initialization in romInit.s .............................. 42

2.5.3 Providing Insufficient Initialization in sysALib.s ......................................... 42

2.5.4 Locating Modified Drivers in the Wrong Directory ..................................... 43

2.5.5 Including Confusing Configuration Options ............................................... 43

2.5.6 Using Non-Maskable Interrupts .................................................................... 44

Contents

3 Porting a BSP to Custom Hardware .......................................................... 45

3.1 Introduction ...................................................................................................................... 45

3.2 Getting a Default Kernel Running ............................................................................. 46

3.2.1 Initializing the Board ........................................................................................ 46

3.2.2 Initializing Memory ......................................................................................... 46

3.2.3 Using Debug Routines in the Initialization Code ........................................ 47

3.2.4 VxBus Initialization Sequence ........................................................................ 49

3.2.5 Debugging the Initialization Code ................................................................. 50

Initializing ROM-Based Image Types ............................................................ 50

Creating Additional Diagnostic Routines .................................................... 51

Copying Additional Code From the Reference BSP .................................... 52

Initializing RAM-Based Image Types ............................................................ 53

Initializing All Image Types ........................................................................... 53

3.2.6 Starting the WDB Agent Before the Kernel .................................................. 55

3.2.7 Building and Downloading VxWorks ........................................................... 56

3.2.8 Interrupt Controllers ........................................................................................ 57

3.2.9 DMA ................................................................................................................... 57

3.2.10 Minimum Required Drivers ............................................................................ 57

3.2.11 Serial Drivers .................................................................................................... 58

3.2.12 VxBus Initialization Routines ......................................................................... 59

3.3 Finalizing Your BSP ....................................................................................................... 60

3.3.1 Removing Development-Related Changes ................................................... 60

3.3.2 Creating Workbench Projects .......................................................................... 61

3.3.3 Adding Other Timers ....................................................................................... 61

3.3.4 Enabling NVRAM ............................................................................................ 61

3.3.5 Enabling Cache and MMU Devices ................................................................ 62

3.3.6 Testing Boot ROMs ........................................................................................... 64

3.3.7 Providing Bus Interface Support ..................................................................... 65

VxBus Support .................................................................................................. 65

Legacy Bus Interface Support ......................................................................... 65

PCI Bus Interface Support ............................................................................... 65

PCI Configuration Example ........................................................................... 74

PCI Show Routines .......................................................................................... 79

VME Bus Interface Support ............................................................................ 81

USB Bus Interface Support .............................................................................. 81

3.3.8 Updating BSP-Specific Documentation ........................................................ 81

3.3.9 Providing Additional Optional Device Support ......................................... 82

Adding VxBus Devices .................................................................................... 82

Adding Ethernet Devices ................................................................................ 83

Adding Other Devices ...................................................................................... 84

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风雅飘零

2013-04-25

很不错的文档，里面详细讲解了Wind River VxWorks 6.8 BSP编程的一些基本知识，适合入门，也可当做手册使用。
yanick006

2013-07-09

很好的说明文档，对6.9也很有启发
毛毛虫的爹

2014-03-01

很好的说明文档
lukeyer

2017-12-14

没什么用，官方自带的。
KSCNN

2019-09-10

不错挺好的，谢谢！