Specification of Watchdog Driver
AUTOSAR Release 4.2.2
4 of 44 Document ID 039: AUTOSAR_SWS_WatchdogDriver
- AUTOSAR confidential -
Table of Contents
1 Introduction and functional overview ................................................................... 6
2 Acronyms and abbreviations ............................................................................... 7
3 Related documentation........................................................................................ 8
3.1 Input documents ............................................................................................ 8
3.2 Related standards and norms ....................................................................... 8
3.3 Related specification ..................................................................................... 8
4 Constraints and assumptions .............................................................................. 9
4.1 Limitations ..................................................................................................... 9
4.2 Applicability to car domains ........................................................................... 9
5 Dependencies to other modules ........................................................................ 10
5.1 File structure ................................................................................................ 10
5.1.1 Code file structure ................................................................................. 10
5.1.2 Header file structure .............................................................................. 11
5.1.3 Version check ....................................................................................... 12
5.2 System clock ............................................................................................... 12
5.3 Onboard communication handlers ............................................................... 12
6 Requirements traceability .................................................................................. 13
7 Functional specification ..................................................................................... 21
7.1 General design rules ................................................................................... 21
7.2 Error classification ....................................................................................... 22
7.2.1 Development Errors .............................................................................. 22
7.2.2 Runtime errors ...................................................................................... 22
7.2.3 Transient Faults .................................................................................... 22
7.2.4 Production errors .................................................................................. 22
7.2.5 Extended production errors ................................................................... 22
7.3 Error detection ............................................................................................. 23
7.4 Error notification .......................................................................................... 23
7.5 External watchdog driver ............................................................................. 23
7.6 Internal watchdog driver .............................................................................. 24
7.7 Triggering concept to support windowed watchdogs ................................... 25
7.8 Debugging ................................................................................................... 26
8 API specification ................................................................................................ 27
8.1 Imported types ............................................................................................. 27
8.2 Type definitions ........................................................................................... 27
8.2.1 Wdg_ConfigType .................................................................................. 27
8.3 Function definitions...................................................................................... 27
8.3.1 Wdg_Init ................................................................................................ 27
8.3.2 Wdg_SetMode ...................................................................................... 29
8.3.3 Wdg_SetTriggerCondition ..................................................................... 31
8.3.4 Wdg_GetVersionInfo ............................................................................. 32
8.4 Call-back Notifications ................................................................................. 32
8.5 Scheduled functions .................................................................................... 32
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