Spectrum Brands MI.61XX manual Additions for synchronizing different boards, General information

Page 74

The setup order for the different synchronization options

Synchronization (Option)

 

 

Additions for synchronizing different boards

General information

Spectrum boards with different speed grades, different number of channels or even just different clock settings for the same types of boards can be synchronized as well. To get the boards working together synchronously some extra setups have to be done, which are described in the following passages.

All clock rates of all synchronized boards are derived from the clock signal that is distributed via the sync bus. This clock is the sum samplerate of one module of the clock master board. Based on this speed the clock rates of the slave boards can be set. As these clock rates are divided from the sync clock, the board with the maximum sum sample rate should be set up as clock master.

Calculating the clock dividers

The sum sample rate can easily be calculated by the formula on the right. The value for the sample rate of board N must contain the actual desired conversion rate for one channel of board N. Please refer to the dedicated chapter in the board’s manual to get informed about the relation beween the board model and the number of actually activated channels per mo- dule for the different channel setups.

As mentioned above the board with the highest sum sample rate must be set up as the clock master. This maximum sum sample rate is used as the overall sync speed, which is distributed via the sync bus. If you have cal- culated the sync speed you can calculate the clock dividers for the diffe- rent boards with the formula on the right.

The maximum possible channels per module for all Spectrum boards are given in the table below.

SumSampleRateN = SampleRateN ⋅ ActChPerModuleN

ClockDividerN

=

SyncSpeed

SampleRate---------------------------------------------------------------------------------N⋅ ActChPerModuleN

 

 

 

20xx

x

30xx

x

31xx

x

40xx

x

45xx

x

60xx

x

61xx

x

70xx

x

72xx

x

0x

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7005

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1x

 

 

3010

1

3110

2

 

 

 

 

 

 

6110

2

7010

1

7210

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3011

2

3111

4

 

 

 

 

6011

2

6111

2

7011

2

7211

1

 

 

 

3012

2

3112

4

 

 

 

 

6012

2

 

 

 

 

 

 

 

 

 

3013

2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3014

2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3015

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3016

2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2x

2020

2

3020

1

3120

2

4020

1

4520

2

 

 

 

 

7020

1

7220

1

 

2021

2

3021

2

3121

4

4021

2

4521

2

6021

2

 

 

7021

2

7221

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3022

2

3122

4

4022

2

 

 

6022

2

 

 

 

 

 

 

 

 

 

3023

2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3024

2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3025

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3026

2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3027

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3x

 

 

 

 

3130

2

4030

1

4530

2

6030

1

 

 

 

 

 

 

 

2031

2

3031

2

3131

4

4031

2

4531

2

6031

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3132

4

4032

2

 

 

 

 

 

 

 

 

 

 

 

2033

2

3033

2

 

 

 

 

 

 

6033

2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

6034

2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4x

 

 

 

 

 

 

 

 

4540

2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4541

2

 

 

 

 

 

 

 

 

74

MI.61xx Manual

Page 73 Page 75
Image 74
Page 73 Page 75
Contents MI.61xx English version October 5Page Introduction Hardware InstallationSoftware Driver Installation SoftwareAnalog Outputs Fifo ModeProgramming the Board Standard generation modesSynchronization Option Option Gated ReplayOption Extra I/O AppendixGeneral Information IntroductionPreface PrefaceIntroduction Different models of the MI.61xx seriesMI.6110 MI.6111 Extra I/O Option -XIO Additional optionsExtra I/O Option -XMF Starhub Introduction Additional optionsSpectrum type plate Block diagram Technical Data Hardware informationHardware informationIntroduction Dynamic ParametersOrder information FilterSystem Requirements Hardware InstallationInstalling the board in the system Installing a board with digital inputs/outputs Installing a board with extra I/O Option -XMFHooking up the boards Installing multiple boards synchronized by starhubMounting the wired boards Only use the included flat ribbon cablesInstalling multiple synchronized boards Interrupt Sharing Software Driver InstallationSoftware Driver Installation Version control InstallationWindows Driver Update Windows Software Driver Installation Windows Windows XP Windows XP Windows NT Adding boards to the Windows NT driverLinux OverviewDriver info Installing the deviceNow it is possible to access the board using this device Automatic load of the driverFirst Test with SBench SoftwareSoftware Overview SoftwareMicrosoft Visual C++ ++ Driver InterfaceHeader files Linux Gnu CDriver functions Other Windows C/C++ compilersNational Instruments LabWindows/CVI Include DriversFunction SpcSetData Windows Function SpcSetParamFunction SpcSetParam Function SpcGetDataSpectrum GmbH Include Driver Delphi Pascal Programming InterfaceType definition ExamplesDelphi Pascal Programming Interface VBA for Excel Examples Visual Basic Programming InterfaceVisual Basic Examples Visual Basic Programming Interface Overview Error handlingProgramming the Board Register tablesStarting the automatic initialization routine Example for error checkingInitialization PCI RegisterDate of production Installed memoryHardware version Serial numberUsed type of driver Installed features and optionsUsed interrupt line Driver versionSpcpcimemsize Powerdown and resetExample program for the board initialization SpcpciserialnoImportant note on channels selection Analog OutputsChannel Selection Disabling the outputsOutput offset Setting up the outputsOutput Amplifiers Register Value Direction Description Amplitude rangeOutput Filters Filter SpecificationsMaximum Output Range Programming Standard generation modesGeneral description Maximum posttrigger in MSamples Standard generation modes ProgrammingMaximum memsize Minimum and stepsize of memsize and posttrigger in samplesCommand register Starting without interrupt classic modeStarting with interrupt driven mode ProgrammingStandard generation modesValue ’start’ as a 32 bit integer value Data organizationWriting data with SpcSetData Value ’len’ as a 32 bit integer valueSample format Standard modeBit Standard Mode Background Fifo Write Fifo ModeGeneral Information Speed LimitationsTheoretical maximum sample rate PCI Bus Throughput Programming Fifo ModeSoftware Buffers 60040 Read out the number of available Fifo buffersAnalog acquisition or generation boards Fifo Mode ProgrammingBuffer processing Digital I/O 701x or 702x or pattern generator boardsSpcfifostart Example Fifo generation mode== Maxbuf SpcfifowaitProgramming Standard internal sample rate Clock generationInternally generated sample rate External clocking Using plain quartz with no PLLExternal reference clock Maximum external samplerate in MS/s Direct external clockMinimum external sample rate CHANNEL0 CHANNEL1 CHANNEL2 CHANNEL3 External clock with dividerExample Software trigger Example for setting up the software triggerTrigger modes and appendant registers External TTL triggerTrigger modes and appendant registers Example on how to set up the board for positive TTL triggerEdge triggers Positive TTL triggerPositive and negative TTL trigger Output modes Standard ModeOption Multiple Replay Trigger modesResulting start delays Trigger modes Option Multiple ReplayOption Gated Replay General information and trigger delayOption Gated Replay Value Direction DescriptionExternal TTL edge trigger Example programAllowed trigger modes Spctriggermode TmttlposChannel direction Option Extra I/ODigital I/Os Transfer DataAnalog Outputs Option Extra I/O Analog OutputsProgramming example Synchronization with option cascading Synchronization OptionDifferent synchronization options Synchronization with option starhubExample of board setup for three boards Setup order for the different synchronization optionsSet up the board parameters Write Data to on-board memory output boards only3a Define synchronization or trigger Define the boards for trigger masterExample of board #2 set as trigger master Define the remaining boards as trigger slavesDefine the remaining boards as clock slaves Define the board for clock masterExample board number 0 is clock master Arm the boards for synchronizationRead data from the on-board memory acquisition boards only Start all of the trigger master boardsWait for the end of the measurement Example for data readingSpcsyncmasterfifo Allocate the Fifo software buffers2a Write first data for output boards SpcsyncslavefifoAs trigger slaves Calculating the clock dividers Additions for synchronizing different boardsGeneral information 20xx 30xx 31xx 40xx 45xx 60xx 61xx 70xx 72xx40 MS/s Setting up the clock dividerBoard type 3122 3120 Board type 3025 3131Delay in Fifo mode Resulting delays using different boards or speedsDelay in standard non Fifo modes Additions for equal boards with different sample ratesAppendix Error CodesError name Value hex Value dec Error description AppendixPin assignment of the multipin cable Pin assignment of the multipin connectorExtra I/O with external connectorOption -XMF D14 D12 D10 Pin assignment of the internal multipin connectorExtra I/O with internal connector Option -XIO D15 D13 D11
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