PICMGEAPI1.0spec_spec结

eapi

需积分: 33 83 浏览量更新于2023-03-16 评论收藏 789KB PDF 举报

身份认证购VIP最低享 7 折!

领优惠券(最高得80元）

资源详情

资源评论

资源推荐

EAPI

PICMG EAPI

Revision 1.0

August 8, 2010

Embedded Application Programming Interface

PICMG® EAPI R1.0, August 8, 2010 page 1 of 83

Table of Contents

1 Introduction .................................................................................................................................................... 6

1.1 Name and Logo Usage .......................................................................................................................... 6

1.2 Intellectual Property ............................................................................................................................... 7

1.3 Copyright Notice .................................................................................................................................... 8

1.4 Trademarks ............................................................................................................................................ 8

1.5 Special Word Usage .............................................................................................................................. 9

1.6 Acronyms / Definitions ........................................................................................................................... 9

1.7 Applicable Documents and Standards ................................................................................................. 13

1.8 Statement of Compliance ..................................................................................................................... 14

2 General ........................................................................................................................................................ 15

2.1 Parameters .......................................................................................................................................... 15

2.2 Keywords ............................................................................................................................................. 16

2.3 Status Codes ....................................................................................................................................... 16

3 Initialization Functions .................................................................................................................................. 20

3.1 EApiLibInitialize ................................................................................................................................... 20

3.2 EApiLibUnInitialize ............................................................................................................................... 20

4 EAPI Information Functions ......................................................................................................................... 21

4.1 EApiBoardGetStringA .......................................................................................................................... 21

4.2 EApiBoardGetValue ............................................................................................................................. 22

5 Backlight Functions ...................................................................................................................................... 24

5.1 Common Parameters for Backlight Functions ...................................................................................... 24

5.2 EApiVgaGetBacklightEnable ............................................................................................................... 25

5.3 EApiVgaSetBacklightEnable ................................................................................................................ 25

5.4 EApiVgaGetBacklightBrightness .......................................................................................................... 26

5.5 EApiVgaSetBacklightBrightness .......................................................................................................... 27

6 Storage Functions ........................................................................................................................................ 28

6.1 Common Parameters ........................................................................................................................... 28

6.2 EApiStorageCap .................................................................................................................................. 28

6.3 EApiStorageAreaRead ......................................................................................................................... 29

6.4 EApiStorageAreaWrite ......................................................................................................................... 30

7 Functions for the I2C Bus ............................................................................................................................ 32

7.1 Common Parameters ........................................................................................................................... 32

7.2 Address Format for the I2C Bus .......................................................................................................... 33

7.3 I2CTransfer Types ............................................................................................................................... 34

7.4 I2C Device Probe Types ...................................................................................................................... 36

7.5 EapiI2CGetBusCap ............................................................................................................................. 36

7.6 EapiI2CWriteReadRaw ........................................................................................................................ 37

7.7 EapiI2CReadTransfer .......................................................................................................................... 38

7.8 EapiI2CWriteTransfer .......................................................................................................................... 40

7.9 EApiI2CProbeDevice ........................................................................................................................... 41

8 WATCHDOG ............................................................................................................................................... 43

8.1 EApiWDogGetCap ............................................................................................................................... 44

8.2 EApiWDogStart .................................................................................................................................... 45

8.3 EApiWDogTrigger ................................................................................................................................ 45

8.4 EApiWDogStop .................................................................................................................................... 46

9 GPIO Functions ........................................................................................................................................... 47

9.1 Common Parameters ........................................................................................................................... 47

9.2 EApiGPIOGetDirectionCaps ................................................................................................................ 49

9.3 EApiGPIOGetDirection ........................................................................................................................ 50

9.4 EApiGPIOSetDirection ......................................................................................................................... 51

9.5 EApiGPIOGetLevel .............................................................................................................................. 52

9.6 EApiGPIOSetLevel .............................................................................................................................. 53

10 Header Files .............................................................................................................................................. 54

PICMG® EAPI R1.0, August 8, 2010 page 2 of 83

10.1 EApi.h ................................................................................................................................................ 54

10.2 EApiCOM0.h ...................................................................................................................................... 74

11 Vendor Specific IDs ................................................................................................................................... 77

12 Standard Data Formats .............................................................................................................................. 78

12.1 Compressed ASCII PNPID ................................................................................................................ 78

12.2 Specification Version Number Format ............................................................................................... 78

12.3 General Version number Format ....................................................................................................... 79

13 OS Specific Requirements ......................................................................................................................... 80

13.1 Windows ........................................................................................................................................... 80

13.2 Linux/Unix Shared Library Naming Convention ................................................................................. 81

13.3 ELF/a.out Format Shared Libraries .................................................................................................... 81

14 Example Code ........................................................................................................................................... 83

15 Revision History ......................................................................................................................................... 84

PICMG® EAPI R1.0, August 8, 2010 page 3 of 83

API Function Prototypes

EApiLibInitialize.............................................................................................................................................. 20

EApiLibUnInitialize.......................................................................................................................................... 20

EApiBoardGetStringA..................................................................................................................................... 21

EApiBoardGetValue........................................................................................................................................ 22

EApiVgaGetBacklightEnable.......................................................................................................................... 25

EApiVgaSetBacklightEnable........................................................................................................................... 25

EApiVgaGetBacklightBrightness..................................................................................................................... 26

EApiVgaSetBacklightBrightness..................................................................................................................... 27

EApiStorageCap............................................................................................................................................. 28

EApiStorageAreaRead.................................................................................................................................... 29

EApiStorageAreaWrite.................................................................................................................................... 30

EApiI2CGetBusCap........................................................................................................................................ 36

EApiI2CWriteReadRaw................................................................................................................................... 37

EApiI2CReadTransfer..................................................................................................................................... 38

EApiI2CWriteTransfer..................................................................................................................................... 40

EApiI2CProbeDevice...................................................................................................................................... 41

EApiWDogStart............................................................................................................................................... 44

EApiWDogStart............................................................................................................................................... 45

EApiWDogTrigger........................................................................................................................................... 45

EApiWDogStop............................................................................................................................................... 46

EApiGPIOGetDirectionCaps........................................................................................................................... 49

EApiGPIOGetDirection................................................................................................................................... 50

EApiGPIOSetDirection.................................................................................................................................... 51

EApiGPIOGetLevel......................................................................................................................................... 52

EApiGPIOSetLevel......................................................................................................................................... 53

PICMG® EAPI R1.0, August 8, 2010 page 4 of 83