Sun Microsystems CP2500 manual OpenBoot Prom Environmental Monitoring

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Note – If you have developed an application that uses the environmental monitoring software to monitor the temperature sensors, you may want to adjust your application’s settings accordingly.

OpenBoot PROM Environmental Monitoring

This section describes the OpenBoot PROM environmental monitoring of the CPU.

Warning Temperature Response at OpenBoot PROM

When the CPU diode temperature reaches warning temperature, a similar message is displayed at the ok prompt at a regular interval:

Temperature sensor #2 has threshold event of

<<<WARNING!!! Upper Non-critical - going high >>>

The current threshold setting is : 110

The current temperature is : 111

Critical Temperature Response at OpenBoot PROM

When the CPU diode temperature reaches critical temperature, a similar message is displayed at the ok prompt at a regular interval:

Temperature sensor #2 has threshold event of

<<<ALERT!!! Upper Critical - going high >>>

The current threshold setting is : 118

The current temperature is : 119

Chapter 2 Environmental Monitoring 33

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Contents Netra CP2500 Board Programming Guide Page Contents User Flash Figures Vi Netra CP2500 Board Programming Guide March Tables Viii Netra CP2500 Board Programming Guide March Code Samples Netra CP2500 Board Programming Guide March How This Book Is Organized PrefaceTypographic Conventions Using Unix CommandsRelated Documentation Shell PromptsSun Welcomes Your Comments Documentation, Support, and TrainingThird-Party Web Sites Overview Watchdog TimerPicl Plug-In Module 2Properties Under watchdog-controllerNode 1Watchdog Plug-In Interfaces for Netra CP2500 Board SoftwareHEALTHY# 3Properties Under watchdog-timerNodeCode Example 1-1System Watchdog Node Management Code Example Watchdog Node Management CodeCode Example 1-1System Watchdog Node Management Code Example Usagestr Code Example 1-1System Watchdog Node Management Code Example Code Example 1-1System Watchdog Node Management Code Example Code Example 1-1System Watchdog Node Management Code Example Code Example 1-1System Watchdog Node Management Code Example Code Example 1-1System Watchdog Node Management Code Example Null Code Example 1-1System Watchdog Node Management Code Example Code Example 1-1System Watchdog Node Management Code Example Code Example 1-1System Watchdog Node Management Code Example Code Example 1-1System Watchdog Node Management Code Example Code Example 1-1System Watchdog Node Management Code Example Notreached Code Example 1-1System Watchdog Node Management Code Example OpenBoot Prom Interface Netra CP2500 Board Programming Guide March Environmental Monitoring 1Compatible Environmental Monitoring Components Environmental Monitoring Component CompatibilityTypical Environmental Monitoring System Application I2C Environmental Monitoring Protection at the OpenBoot Prom Typical Cycle From Power Up to ShutdownPost Shutdown Recovery 3I2C Components Hardware Environmental Monitoring FunctionsEnvironmental Monitoring CPU Inlet, Exhaust, and CPU Temperature Monitoring Switching Power On and OffNetra CP2500 Board Programming Guide March Critical Temperature Response at OpenBoot Prom OpenBoot Prom Environmental MonitoringEnvironmental Monitoring Application Programming Using the show-sensorsCommand at OpenBoot Prom4PICL Temperature Sensor Class Node Properties Reading Temperature Sensor States UsingSolaris Driver Interface Using a Configuration File for Sensor InformationCode Example 2-1Sample envmond Application Program Sample Application ProgramCode Example 2-1Sample envmond Application Program Code Example 2-1Sample envmond Application Program Code Example 2-1Sample envmond Application Program Prtdiag command example Reading the CPU Temperature Environmental Limits5Description of Values Displayed by Solaris Commands User Flash Usage and Implementation User Flash1User Flash Node Properties OpenBoot Prom Device Tree and PropertiesUser Flash Driver 2System Calls Application Programming InterfaceUser Flash Device Files Interface Header FileCode Example 3-1PROM Information Structure Structures to Use in Ioctl ArgumentsCode Example 3-2User Flash Interface Structure ErrorsExample Programs Code Example 3-3Read Action on User Flash Device Read Example ProgramCode Example 3-4Write Action on User Flash Device Write Example ProgramCode Example 3-4Write Action on User Flash Device Code Example 3-5Block Erase Action on User Flash Device Block Erase Example ProgramCode Example 3-5Block Erase Action on User Flash Device Code Example 3-6Sample User Flash Application Program Sample User Flash Application ProgramCode Example 3-6Sample User Flash Application Program Code Example 3-6Sample User Flash Application Program Code Example 3-6Sample User Flash Application Program Code Example 3-6Sample User Flash Application Program Code Example 3-6Sample User Flash Application Program Picl IndexWatchdog-controller, 3 Watchdog-timer, 3