BSP Developer's Guide

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VxWorks 5.5 BSP Developer’s Guide SYS_CLK_RATE_MAX Defines the maximum rate at which the system clock can run. Unless hardware constraints dictate otherwise, SYS_CLK_RATE_MAX must be greater than or equal to 60 Hz. AUX_CLK_RATE_MIN Defines the minimum rate at which the auxiliary clock can run. To support spy( ), AUX_CLK_RATE_MIN must be less than or equal to 100 Hz. AUX_CLK_RATE_MAX Defines the maximum rate at which the auxiliary clock can run. To support spy( ), AUX_CLK_RATE_MAX must be greater than or equal to 100 Hz. F.5 Non-Volatile Memory The generic NVRAM and flash drivers reside in the directory target/src/drv/mem. Included in this directory is templateNvRam.c. This file provides the template driver to be used as the basis of non-volatile memory drivers, including flash. However, do not use this template for the optional True Flash File System (TFFS) product. For TFFS, refer to documentation accompanying special MTD drivers for flash devices. All BSPs are required to have some type of non-volatile memory interface, even if non-volatile memory is not available. The two required routines are sysNvRamGet( ) and sysNvRamSet( ). These routines both require an offset parameter. Internally, these routines use the offset parameter as follows: offset += NV_BOOT_OFFSET; /* boot line begins at = 0 */ if ((offset < 0) || (strLen < 0) || ((offset + strLen) > NV_RAM_SIZE)) return (ERROR); Thus, the offset parameter is biased so that an offset of 0 points to the first byte of the VxWorks boot line. This is always true even if the boot line is not at the beginning of the non-volatile memory area. All BSPs must define the following macros: 252
F Generic Drivers NV_RAM_SIZE Defines the total bytes of NVRAM available. Define NV_RAM_SIZE in config.h,orbspname.h. For boards without NVRAM, define NV_RAM_SIZE as NONE. BOOT_LINE_SIZE Defines the number of bytes of NVRAM that are reserved for the VxWorks boot line. The default value is 255 and is defined in configAll.h. BOOT_LINE_SIZE must be less than or equal to NV_RAM_SIZE. To override the default value of BOOT_LINE_SIZE, first undefine then define the macro in config.h or bspname.h. NV_BOOT_OFFSET Defines the byte offset to the beginning of the VxWorks boot line in NVRAM. The default value is 0 and is defined in configAll.h. This is distinct from BOOT_LINE_OFFSET, the offset of the boot line stored in RAM. The routines sysNvRamSet( ) and sysNvRamGet( ) have an offset parameter. If NV_BOOT_OFFSET is greater than zero, you can access the bytes before the boot line by specifying a negative offset. To override the default value of NV_BOOT_OFFSET, first undefine then define the macro. For boards without NVRAM, include the file mem/nullNvRam.c for stubbed out versions of the routines that return ERROR. F F.6 VMEbus The generic VMEbus drivers reside in the directory target/src/drv/vme. Included in this directory is the templateVme.c. Use the driver in this file as the template for VME drivers. Included in this template file is detailed information on VME driver construction. For boards without a VMEbus interface, use the nullVme.c driver. If the application does not use network support, you can skip the VME driver altogether. Although, in this case, you might need to provide a sysBusTas( ) function that always returns FALSE. Wind River does not currently offer the kind of plug-and-play support published in the VME-64 specification and its extensions. 253
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VxWorks® 5.5 BSP DEVELOPER’S GUI
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1 Overview ........................
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Contents 1 Overview ...............
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Contents 3.6.5 Cache, MMU, and DMA
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Contents Memory-Mapped Chips ......
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Contents 7.3.3 System Configuration
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Contents 9.5.4 Processing .........
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Contents F Generic Drivers ........
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Contents Stopping the Driver Withou
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1 Overview 1.1 Introduction One str
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1 Overview ■ New Drivers Many new
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1 Overview Included with Tornado (n
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1 Overview ■ ■ ■ ■ ■ ■
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1 Overview Table 1-1 Font Usage for
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2 BSP Organization 2.1 Introduction
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2 BSP Organization Files in the tar
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2 BSP Organization Files in the tar
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2 BSP Organization Version 1.0 BSPs
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2 BSP Organization SM_MEM_SIZE The
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2 BSP Organization For boards witho
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2 BSP Organization PCI_MSTR_IO_LOCA
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2 BSP Organization The entry point
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2 BSP Organization target.nr The fi
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2 BSP Organization bootrom This fil
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2 BSP Organization sysSerialHwInit(
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2 BSP Organization The Motorola M68
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2 BSP Organization Many VxWorks fac
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2 BSP Organization further board in
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2 BSP Organization can have very un
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3 Creating a New BSP 3.1 Introducti
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3 Creating a New BSP 3.2 Setting Up
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3 Creating a New BSP Makefile At a
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3 Creating a New BSP char * sysBspR
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3 Creating a New BSP ... #endif } T
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3 Creating a New BSP int dummy; ...
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3 Creating a New BSP To find the so
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3 Creating a New BSP might want to
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3 Creating a New BSP not, use the s
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3 Creating a New BSP ■ It has a V
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3 Creating a New BSP 3.6.7 SCSI VxW
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4 Hardware Guidelines 4.1 Introduct
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4 Hardware Guidelines to the start
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4 Hardware Guidelines Higher-level
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4 Hardware Guidelines Such dedicate
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4 Hardware Guidelines Especially us
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4 Hardware Guidelines selected from
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4 Hardware Guidelines Hardware Inte
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4 Hardware Guidelines The rest of t
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4 Hardware Guidelines 4.4.2 System
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4 Hardware Guidelines only deal wit
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4 Hardware Guidelines 4.4.13 Parall
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4 Hardware Guidelines 0x10000, /* 6
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4 Hardware Guidelines The following
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5 Driver Guidelines 5.1 Introductio
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5 Driver Guidelines Maintenance and
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5 Driver Guidelines word addresses.
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5 Driver Guidelines 5.4 Design Guid
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5 Driver Guidelines Per-Device Data
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5 Driver Guidelines To fix this sit
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5 Driver Guidelines block are more
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5 Driver Guidelines 5.8 Driver Use
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5 Driver Guidelines ■ ■ Memory
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5 Driver Guidelines The level of ca
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5 Driver Guidelines cache for the d
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6 Components 6.1 Introduction Torna
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6 Components 6.2 Component Descript
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6 Components ■ User Presentation.
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6 Components Folder FOLDER_ANSI { N
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6 Components in a single project. I
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6 Components The component object i
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6 Components Parameters Parameters
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6 Components In the example, the co
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6 Components (2) comps/vxWorks/arch
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6 Components Figure 6-4 Include Com
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6 Components NOTE: INIT_BEFORE only
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6 Components The _CHILDREN property
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6 Components ! CAUTION: Do not alte
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6 Components ■ Check the Project
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7 Validation Testing 7.1 Introducti
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7 Validation Testing ■ ■ The te
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7 Validation Testing 2. The script
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7 Validation Testing Figure 7-4 Typ
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7 Validation Testing NOTE: Wind Riv
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7 Validation Testing scsi Requires
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7 Validation Testing Table 7-1 Vali
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7 Validation Testing Table 7-2 Vali
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7 Validation Testing sysProcNumGet
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7 Validation Testing The log file c
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8 Writing Portable C Code This chap
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8 Writing Portable C Code attribute
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8 Writing Portable C Code 8.1.3 Sta
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8 Writing Portable C Code 8.1.5 Oth
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8 Writing Portable C Code The last
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8 Writing Portable C Code Always sp
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8 Writing Portable C Code 8.2 Tool
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9 Documentation Guidelines 9.1 Intr
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9 Documentation Guidelines Spelling
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9 Documentation Guidelines Table 9-
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9 Documentation Guidelines Table 9-
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9 Documentation Guidelines ■ Avoi
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9 Documentation Guidelines ■ ■
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9 Documentation Guidelines INCLUDE
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9 Documentation Guidelines INTRODUC
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9 Documentation Guidelines 9.5 Gene
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9 Documentation Guidelines uppercas
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9 Documentation Guidelines The foll
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10 Product Packaging 10.1 SETUP Dev
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10 Product Packaging ... include $(
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10 Product Packaging Vendor-Supplie
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Page 241 and 242: D VxWorks Boot Sequence Table D-1 d
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Page 265 and 266: F Generic Drivers F.1 Introduction
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H Implementing a MUX-Based Network
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I Writing a SCSI-2 Device Driver I.
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I Writing a SCSI-2 Device Driver On
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I Writing a SCSI-2 Device Driver A
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I Writing a SCSI-2 Device Driver *
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I Writing a SCSI-2 Device Driver ;/
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J BSP Validation Test Suite Referen
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K BSP Validation Checklists This ap
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K BSP Validation Checklists BSP Val
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K BSP Validation Checklists 7. Veri
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K BSP Validation Checklists 2. If t
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K BSP Validation Checklists Validat
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K BSP Validation Checklists Manufac
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K BSP Validation Checklists Manufac
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L Refgen NOTE: In Tornado 1.0.1 and
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L Refgen * SYNOPSIS * \cs * void xx
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L Refgen Yields output approximatel
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L Refgen EXAMPLE INCLUDES SEE ALSO
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M BSP Product Contents When you are
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M BSP Product Contents Do not inclu
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Index A abort button 82 addressing
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Index clocks see also individual cl
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Index naming conventions 95 perform
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Index INCLUDE_USR_APPL 38 INCLUDE_V
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Index network drivers 58 network in
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Index scsiCtrlLib 324 scsiDirectLib
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Index testing, validation 139-158 s
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