Motorola MVME197LE manual Disk I/O via 197Bug Commands

Page 53

Disk I/O Support

made, the next time a probe is done it simply returns with “device present” status (pointer to the device descriptor).

Disk I/O via 197Bug Commands

These following 197Bug commands are provided for disk I/O. Detailed instructions for their use are found in the MVME197BUG 197Bug Debugging Package User’s Manual. When a command is issued to a particular controller LUN and device LUN, these LUNs are remembered by 197Bug so that the next disk command defaults to use the same controller and device.

IOI (Input/Output Inquiry)

IOI allows the user to probe the system for all possible CLUN/DLUN combinations and display inquiry data for devices which support it. The device descriptor table only has space for 16 device descriptors; with the IOI command, the user can view the table and clear it if necessary.

IOP (Physical Input/Output to Disk)

IOP allows the user to read or write blocks of data, or to format the specified device in a certain way. IOP creates a command packet from the arguments specified by the user, and then invokes the proper system call function to carry out the operation.

IOT (Input/Output Teach)

IOT allows the user to change any configurable parameters and attributes of the device. In addition, it allows the user to see the controllers available in the system.

IOC (Input/Output Control)

IOC allows the user to send command packets as defined by the particular controller directly. IOC can also be used to look at the resultant device packet after using the IOP command.

BO (Bootstrap Operating System)

BO reads an operating system or control program from the specified device into memory, and then transfers control to it.

BH (Bootstrap and Halt)

BH reads an operating system or control program from a specified device into memory, and then returns control to 197Bug. It is used as a debugging tool.

3

MVME197LEIG/D1

3-11

Image 53

Contents MVME197LE Restricted Rights Legend Document Terminology PrefaceBIT Document Title Motorola Publication Number Related DocumentationPage Page Safety Summary Safety Depends on YOU Contents Hardware Preparation and Installation Using the 197Bug Debugger Appendix a Configure and Environment Commands List of Figures Xiv List of Tables Xvi Overview IntroductionRequirements Features MVME197LE Specifications SpecificationsBlock Diagram Block Diagram MC88110 Address Data MUX Address Bus Data Bus 256 BusSwitchMezzanine Address Bus Memory ArrayFunctional Description Front Panel Switches and IndicatorsMC88110 MPU Data Bus StructureFlash Memory Onboard DramVMEbus Interface Battery Backup RAM and ClockInterfaces Serial Port InterfaceEthernet Interface Printer InterfaceScsi Termination Scsi InterfacePeripheral Resources Memory Maps ConnectorsInterrupt Sources Processor Bus Memory MapDramsize Processor Bus Memory MapLocal Devices Memory Map Address Range Devices Accessed Port SizeVMEbus Short I/O Memory Map VMEbus Accesses to the Local Peripheral BusVMEbus Memory Map Hardware Preparation Unpacking InstructionsHardware Preparation and Installation VMEbus Connector P1 Configuration Switch S1 General Information Configuration SwitchesSwitch S1 S1-1 to S1-8 OFF -- All Ones Factory Configuration Switch S6 Installation InstructionsMVME197LE Module Installation System Considerations MVME197LEIG/D1 Hardware Preparation and Installation Description of 197Bug Overview of M88000 Firmware197Bug Implementation Installation and Start-upComparison With M68000-Based Firmware Ote Terminal to make sure XON/XOFF handshaking is enabledAutoboot Network Boot ROMbootRestarting the System ResetBreak AbortMPU Clock Speed Calculation Memory RequirementsSYSFAIL* Assertion/Negation DEL Terminal Input/Output ControlDevice Probe Function Disk I/O SupportBlocks Versus Sectors Disk I/O via 197Bug Commands Dskcfig Disk I/O via 197Bug System CallsNetwork I/O Support Default 197Bug Controller and Device ParametersDisk I/O Error Codes Physical Layer Manager Ethernet Driver Bootp Protocol ModuleUDP/IP Protocol Modules RARP/ARP Protocol ModulesNetwork I/O Error Codes Network Boot Control ModuleMultiprocessor Support Multiprocessor Control Register Mpcr MethodMpar Gcsr Method Diagnostic FacilitiesDebugger General Information Debugger Entering Debugger Command LinesExpression as a Parameter Syntactic VariablesData Type Base Identifier Examples Offset Registers Address as a ParameterAddress Formats Port Numbers Entering and Debugging ProgramsPreserving The Debugger Operating Environment Calling System Utilities From User Programs197Bug Vector Table and Workspace Hardware FunctionsCPU/MPU Registers Floating Point SupportScientific Notation Single Precision RealDouble Precision Real Debugger Commands 197Bug Debugger Command SetNocm Noma Name Nioc RL Addrbhw Using the 197Bug Debugger Cnfg MI Configure Board Information BlockENV D Set Environment to Bug/Operating SystemENV Parameter and Options Default Meaning of Default Table A-1. ENV Command ParametersConfigure and Environment Commands Ffbffffc Table A-1. ENV Command Parameters Memory Requirement s 01FFFFFF Table A-1. ENV Command Parameters Efffffff FF7FFFFF Table A-1. ENV Command Parameters Table A-1. ENV Command Parameters Table A-1. ENV Command Parameters Disk/Tape Controller Modules Supported DISK/TAPE Controller DataSingle Board Computers 7 Devices Disk/Tape Controller Default ConfigurationsMVME320 4 Devices MVME323 4 DevicesMVME328 14 Devices MVME327A 9 DevicesMVME350 1 Device IOT Parameter IOT Command Parameters for Supported Floppy TypesDisk/Tape Controller Data Network Controller Modules Supported Network Controller DataNetwork Controller Data Numerics SymbolsIN-2 IN-3 Nvram A-2 XON/XOFF Index

Related manuals

Manual 78 pages 27.46 Kb