Analog Devices VisualDSP++ 5.0 Bedienungsanleitung

W5.0

Device Drivers and System Services

Manual for Blackfin®Processors

Revision 3.2, August 2008

Part Number

82-000430-01

Analog Devices, Inc.

One Technology Way

Norwood, Mass. 02062-9106

may not be reproduced in any form without prior, express written consent

from Analog Devices, Inc.

Printed in the USA.

Disclaimer

Analog Devices, Inc. reserves the right to change this product without

prior notice. Information furnished by Analog Devices is believed to be

accurate and reliable. However, no responsibility is assumed by Analog

Devices for its use; nor for any infringement of patents or other rights of

third parties which may result from its use. No license is granted by impli-

cation or otherwise under the patent rights of Analog Devices, Inc.

Trademark and Service Mark Notice

The Analog Devices logo and icon bar, Blackfin, the Blackfin logo,

EZ-KIT Lite, SHARC, TigerSHARC, and VisualDSP++ are registered

trademarks of Analog Devices, Inc.

All other brand and product names are trademarks or service marks of

their respective owners.

VisualDSP++ 5.0 Device Drivers and System iii

Services Manual for Blackfin Processors

CONTENTS

PREFACE

Purpose of This Manual ............................................................... xxxi

Intended Audience ....................................................................... xxxi

Manual Contents Description ..................................................... xxxii

Technical or Customer Support .................................................. xxxiii

Supported Processors .................................................................. xxxiv

Product Information .................................................................. xxxiv

MyAnalog.com ..................................................................... xxxiv

Processor Product Information ............................................... xxxv

Related Documents .............................................................. xxxvi

Online Technical Documentation ........................................ xxxvii

Accessing Documentation From the Web ......................... xxxvii

Viewing Help Files .......................................................... xxxvii

Notation Conventions .............................................................. xxxviii

INTRODUCTION

System Services Overview .............................................................. 1-2

General ................................................................................... 1-3

Application Interface ............................................................... 1-7

Contents

iv VisualDSP++ 5.0 Device Drivers and System

Services Manual for Blackfin Processors

Dependencies .......................................................................... 1-8

Initialization ......................................................................... 1-10

Termination .......................................................................... 1-10

System Services Directory and File Structure .......................... 1-11

Accessing the System Services API ..................................... 1-11

Linking in the System Services Library .............................. 1-13

Rebuilding the System Services Library ............................. 1-15

Examples .......................................................................... 1-16

Dual-Core Considerations ................................................ 1-16

RTOS Considerations ................................................................. 1-17

Interoperability of System Services With VDK ....................... 1-17

Deployment of Services Within a Multi-Threaded

Application ........................................................................ 1-18

Device Driver Overview .............................................................. 1-19

Application Interface ............................................................. 1-20

Device Driver Architecture .................................................... 1-21

Interaction With System Services ...................................... 1-23

Initialization ......................................................................... 1-23

Termination .......................................................................... 1-24

Device Driver Directory and File Structure ............................ 1-24

Accessing the Device Driver API ....................................... 1-25

Device Driver File Locations ............................................. 1-27

Linking in the Device Driver Library ................................ 1-28

Rebuilding the Device Driver Library ................................ 1-29

Examples on Distribution ................................................. 1-30

VisualDSP++ 5.0 Device Drivers and System v

Services Manual for Blackfin Processors

Contents

INTERRUPT MANAGER

Introduction ................................................................................. 2-2

Interrupt Manager Initialization .................................................... 2-4

Interrupt Manager Termination ..................................................... 2-5

Core Event Controller Functions ................................................... 2-6

adi_int_CECHook() Function ................................................. 2-6

adi_int_CECUnhook() Function ............................................. 2-8

Interrupt Handlers .................................................................. 2-8

System Interrupt Controller Functions .......................................... 2-9

adi_int_SICDisable ............................................................... 2-10

adi_int_SICEnable ................................................................ 2-10

adi_int_SICGetIVG .............................................................. 2-10

adi_int_SICInterruptAsserted ................................................ 2-10

adi_int_SICSetIVG ............................................................... 2-11

adi_int_SICWakeup .............................................................. 2-11

Protecting Critical Code Regions ................................................. 2-12

Modifying IMASK ...................................................................... 2-14

Examples .................................................................................... 2-15

File Structure .............................................................................. 2-16

Interrupt Manager API Reference ................................................ 2-17

Notation Conventions ........................................................... 2-17

adi_int_Init ........................................................................... 2-18

adi_int_Terminate ................................................................. 2-19

adi_int_CECHook ................................................................ 2-20

Contents

vi VisualDSP++ 5.0 Device Drivers and System

Services Manual for Blackfin Processors

adi_int_CECUnhook ............................................................ 2-22

adi_int_ClearIMaskBits ........................................................ 2-24

adi_int_EnterCriticalRegion .................................................. 2-26

adi_int_ExitCriticalRegion .................................................... 2-28

adi_int_SICDisable ............................................................... 2-29

adi_int_SICEnable ................................................................ 2-30

adi_int_SICGetIVG .............................................................. 2-31

adi_int_SICInterruptAsserted ................................................ 2-32

adi_int_SICSetIVG .............................................................. 2-33

adi_int_SetIMaskBits ............................................................ 2-34

adi_int_SICWakeup .............................................................. 2-36

POWER MANAGEMENT MODULE

Introduction ................................................................................. 3-2

PM Module Operation – Getting Started ...................................... 3-3

Dual-Core Considerations ............................................................ 3-5

Using Automatic Synchronization ........................................... 3-5

Synchronization Requirement .................................................. 3-6

Running Applications on One Core Only ................................ 3-7

Running Applications on Both Cores ....................................... 3-8

Synchronization Between Cores ............................................. 3-10

Built-In Lock Variable and Linking Considerations ................ 3-10

SDRAM Initialization Prior to Loading an Executable ................. 3-13

VisualDSP++ 5.0 Device Drivers and System vii

Services Manual for Blackfin Processors

Contents

Power Management API Reference .............................................. 3-15

Notation Conventions ........................................................... 3-15

adi_pwr_AdjustFreq .............................................................. 3-16

adi_pwr_Control ................................................................... 3-18

adi_pwr_GetConfigSize ......................................................... 3-20

adi_pwr_GetFreq .................................................................. 3-21

adi_pwr_GetPowerMode ....................................................... 3-22

adi_pwr_GetPowerSaving ...................................................... 3-23

adi_pwr_Init ......................................................................... 3-24

adi_pwr_LoadConfig ............................................................. 3-30

adi_pwr_Reset ....................................................................... 3-31

adi_pwr_SaveConfig .............................................................. 3-32

adi_pwr_SetFreq ................................................................... 3-33

adi_pwr_SetMaxFreqForVolt ................................................. 3-35

adi_pwr_SetPowerMode ........................................................ 3-36

adi_pwr_SetVoltageRegulator ................................................ 3-38

Public Data Types and Enumerations ........................................... 3-42

ADI_PWR_COMMAND ..................................................... 3-42

ADI_PWR_COMMAND_PAIR ........................................... 3-47

ADI_PWR_CSEL ................................................................. 3-47

ADI_PWR_DF ..................................................................... 3-48

ADI_PWR_INPUT_DELAY ................................................. 3-48

ADI_PWR_OUTPUT_DELAY ............................................. 3-48

ADI_PWR_MODE .............................................................. 3-49

Contents

viii VisualDSP++ 5.0 Device Drivers and System

Services Manual for Blackfin Processors

ADI_PWR_PACKAGE_KIND ............................................. 3-49

ADI_PWR_PCC133_COMPLIANCE .................................. 3-50

ADI_PWR_PROC_KIND .................................................... 3-50

ADI_PWR_RESULT ............................................................ 3-50

ADI_PWR_SSEL .................................................................. 3-52

ADI_PWR_VDDEXT .......................................................... 3-53

ADI_PWR_VLEV ................................................................ 3-53

ADI_PWR_VR_CANWE ..................................................... 3-54

ADI_PWR_VR_USBWE ...................................................... 3-54

ADI_PWR_VR_CKELOW ................................................... 3-54

ADI_PWR_VR_CLKBUFOE ............................................... 3-55

ADI_PWR_VR_FREQ ......................................................... 3-55

ADI_PWR_VR_GAIN ......................................................... 3-55

ADI_PWR_VR_PHYWE ..................................................... 3-56

ADI_PWR_VR_WAKE ........................................................ 3-56

PM Module Macros .................................................................... 3-56

EXTERNAL BUS INTERFACE UNIT MODULE

Introduction ................................................................................. 4-2

Using the EBIU Module ............................................................... 4-3

EBIU API Reference ................................................................... 4-10

Notation Conventions ........................................................... 4-10

adi_ebiu_AdjustSDRAM ....................................................... 4-11

adi_ebiu_Control .................................................................. 4-12

adi_ebiu_GetConfigSize ........................................................ 4-15

VisualDSP++ 5.0 Device Drivers and System ix

Services Manual for Blackfin Processors

Contents

adi_ebiu_Init ........................................................................ 4-16

adi_ebiu_LoadConfig ............................................................ 4-22

adi_ebiu_SaveConfig ............................................................. 4-23

Public Data Types and Enumerations ........................................... 4-24

ADI_EBIU_RESULT ............................................................ 4-24

ADI_EBIU_SDRAM_BANK_VALUE ................................... 4-27

ADI_EBIU_TIME ................................................................ 4-27

ADI_EBIU_TIMING_VALUE ............................................. 4-28

ADI_EBIU_ASYNCH_BANK_TIMING .............................. 4-29

ADI_EBIU_ASYNCH_BANK_VALUE ................................. 4-30

Setting Control Values in the EBIU Module ................................ 4-31

ADI_EBIU_COMMAND ..................................................... 4-31

ADI_EBIU_COMMAND_PAIR ........................................... 4-38

Command Value Enumerations ............................................. 4-38

ADI_EBIU_SDRAM_ENABLE ........................................ 4-38

ADI_EBIU_SDRAM_BANK_SIZE .................................. 4-39

ADI_EBIU_SDRAM_BANK_COL_WIDTH ................... 4-39

ADI_EBIU_SDRAM_MODULE_TYPE .......................... 4-39

ADI_EBIU_CMD_SET_SDRAM_SCTLE ....................... 4-40

ADI_EBIU_SDRAM_EMREN ......................................... 4-40

ADI_EBIU_SDRAM_PASR ............................................. 4-41

ADI_EBIU_SDRAM_TCSR ............................................. 4-41

ADI_EBIU_SDRAM_SRFS .............................................. 4-41

ADI_EBIU_SDRAM_EBUFE .......................................... 4-42

Contents

x VisualDSP++ 5.0 Device Drivers and System

Services Manual for Blackfin Processors

ADI_EBIU_SDRAM_PUPSD .......................................... 4-42

ADI_EBIU_SDRAM_PSM .............................................. 4-43

ADI_EBIU_SDRAM_FBBRW ......................................... 4-43

ADI_EBIU_SDRAM_CDDBG ........................................ 4-44

ADI_EBIU_BANK_NUMBER ........................................ 4-44

ADI_EBIU_ASYNCH_BANK_ENABLE ......................... 4-45

ADI_EBIU_ASYNCH_CLKOUT .................................... 4-45

ADI_EBIU_ASYNCH_BANK_DATA_PATH .................. 4-45

ADI_EBIU_ASYNCH_BANK_ARDY_ENABLE ............. 4-46

ADI_EBIU_ASYNCH_BANK_ARDY_POLARITY ......... 4-46

ADI_EBIU_ASYNCH_HOLD_TIME ............................. 4-46

ADI_EBIU_ASYNCH_SETUP_TIME ............................. 4-47

ADI_EBIU_ASYNCH_TRANSITION_TIME ................. 4-47

DEFERRED CALLBACK MANAGER

Introduction ................................................................................. 5-1

Using the Deferred Callback Manager ........................................... 5-3

Interoperability With an RTOS ..................................................... 5-8

adi_dcb_Forward .................................................................... 5-9

adi_dcb_RegisterISR ............................................................. 5-11

Handling Critical Regions Within Callbacks .......................... 5-11

DCB Manager API Reference ...................................................... 5-12

Notation Conventions ........................................................... 5-12

adi_dcb_Close ...................................................................... 5-13

adi_dcb_Control ................................................................... 5-14

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