HP E1368A manual Selecting the Interrupt Priority, Interrupt Priority Selection

Page 19

Selecting the Interrupt Priority

The Microwave Switch modules generate interrupts after a channel has been closed or opened. These interrupts are sent to, and acknowledgments are received from, the slot 0 module via the VXIbus backplane interrupt lines.

For most applications where the Microwave Switch modules are installed in an HP 75000 Series B or Series C mainframe, these jumpers do not have to be moved. This is because the VXIbus interrupt lines have the same priority and interrupt priority is established by installing modules in slots numerically closest to the slot 0 module. Thus, slot 1 (internal to the Series B mainframe) has a higher priority than slot 2 (also internal), slot 2 has a higher priority than slot 3, etc.

Refer to Figure 2-2 to change the interrupt priority. You can select seven different interrupt priority levels. Level 1 is the lowest priority and Level 7 is the highest priority. The Module’s factory setting is Level 1. To change, clip out and remove two jumpers from the old priority location. Install and solder two new jumpers in the new priority location (Figure 2-2 shows a priority change from 1 to 7).

Note Both jumper locations must have the same interrupt priority level jumper installed. Changing the priority level jumpers is not recommended. Do not change unless specifically instructed to do so.

NOTE:

In this example, the priority jumpers are moved from position 1 to position 7 (lowest priority to highest priority).

Figure 2-2. Interrupt Priority Selection

Chapter 2

Configuring the HP E1368A/69A/70A Modules 19

Image 19

Contents Contents Open OPEN? Scan Scanmode SCANMODE? Cpon HP E1368A/69A/70A Modules User’s Manual Contents Certification Documentation History According to ISO/IEC Guide 22 and EN AprilPage Business Reply Mail Page Microwave Switch Description Using This ChapterGetting Started with the HP E1368A/69A/70A Chapter HP E1368A Switches Power Supply CircuitInstrument Definition Programming the Microwave SwitchCard Numbers for Multiple-Module Switchboxes Initial Operation Example Reset the switchbox and close channelConfiguring the HP E1368A/69A/70A Modules Logical Address Selection Setting the Address SwitchInterrupt Priority Selection Selecting the Interrupt PriorityInstalling Switches on the Module Installing Switches on the HP E1369AChapter Configuring the HP E1368A/69A/70A Modules Microwave Switch Installation Connecting Switches External To the Module Selecting Switch Power Selecting Switch Voltage Connecting Field WiringInstalling a Switch Or Attenuator on Module Microwave Switch/Attenuator Installation Shows the internal schematic of a single attenuator section Microwave Switch Commands Using the HP E1368A/69A/70A ModulesReset Conditions Example Single Channel Switching Switching ChannelsPower To connect C to Port 1, execute 33363K 33364K 33365K 33366K Example Multiple Channel Switching Using EXTernal Example Transfer Switch Using Two Port Switches Example Transfer Switch Using One Port Switch Example 4 x 1 Multiplexer To route signal B to the output, executeSelects the Trigger Source Scanning ChannelsOutput 722TRIG EXT … Example Scanning ChannelsExample Multiple Channel Scanning Example Using the Scan Complete Bit110END Recalling and Saving States Detecting Error ConditionsRepeat Synchronizing Instruments Synchronizing the Microwave SwitchQuerying the Microwave Switch Common Command Format Command TypesScpi Command Format HP E1368A/69A/70A Command Reference Chapter Semicolon between the commands. For example ABORt Scpi Command ReferenceExample Stopping a Scan with ABORt ∙ Number of Scans Use only numeric values between 1 For the number of scanning cycles default isArmcoun ∙ Selecting a Specific Module to be Monitored Use Example Select Module #2 in a Switchbox for MonitoringDISPlay MONitorCARDExample Querying the Monitor Mode Example Enabling the Monitor Mode∙ Selecting the Module to be Monitored Use INITiate ∙ Stopping Continuous Scans See the ABORt commandExample Enabling Continuous Scans Example Query Continuous Scanning State OUTPut Example Query Trig Out Port Enable StateExample Enabling Trig Out Port ROUTe Example Closing Microwave Switch Channels∙ Closing Channels To close ∙ Opening Channels To open Example Opening Microwave Switch ChannelsOr any combination Example Scanning Using External DeviceChapter HP E1368A/69A/70A Command Reference STATus Example Query the Standard Operation Status Enable Register ∙ Setting Bit 7 of the Status Byte RegisterSTATOPER? CDEScription? SYSTemExample Reading the Error Queue Comments Microwave Switch Module Model NumberExample Reading the Model Number of a Card #1 Module ∙ Hold or BUS Source Remains If selected, the TRIGgerSOURce ∙ Executing the TRIGgerIMMediate Command a channel listExample Advancing Scan Using the TRIGger Command TRIGgerExample Scanning Using External Triggers ∙ Trig Out Port Shared by Switchboxes See the OUTPut commandExample Query the Trigger Source Scanning Using Bus TriggersHP Command Module User’s Manual, or the ANSI/IEEE Standard Ieee 488.2 Common CommandsScpi Commands for Quick Reference Command Quick ReferenceHP E1368A/69A/70A Command Reference Chapter Operating Temperature Characteristic Impedence 50Ω Insertion LossMaximum Input Power 1 Watt average Connectors Used P1 No. SlotsHP E1368A/69A/70A Specifications Appendix a Register Definitions HP E1368A/69A/70A RegistersReading the Registers Addressing the RegistersID and Device Type Registers Writing to the Registers Status/Control Register Channel Enable RegisterHP E1368A/69A/70A Registers Appendix B HP E1368A/69A/70A Error Messages Page HP E1368A/69A/70A Modules User’s Manual Index IndexHP E1368A/69A/70A Modules User’s Manual Index HP-IB HP E1368A/69A/70A Modules User’s Manual Index HP E1368A/69A/70A Modules User’s Manual Index HP E1368A/69A/70A Modules User’s Manual Index