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M4i.7725-x8 | Spectrum

LVDS Digital Waveform Acquisition

  • 250 MBit/s internal Sampling Rate Timing
  • 250 MBit/s external State Clock
  • Differential Interface: LVDS, (LV)PECL, (N)PECL, ...
  • 32 simultaneous digital channels
  • 4 GByte (32 GBit) on-board memory as standard
  • FIFO mode continuous streaming
  • Asynchronous state clock (gaps allowed)
  • Programmable clock delay
  • Pattern trigger, external trigger
  • Synchronization of up to 8 cards
  • PCI Express x8 Gen2 Interface
  • Works with x8/x16 PCIe Gen1 to Gen3 slots
  • Sustained streaming speed card to PC up to 3.4 GB/s
  • Sustained streaming speed PC to card up to 2.8 GB/s
  • Direct data transfer to CUDA GPU using SCAPP option

Application Examples

  • ADC Back-End
  • Research and Development
  • Logic Analyzer
  • Digital Data Recorder
  • Spectrum Analyzer Recorder

General Information

The M4i.77xx-x8 series digital waveform acquisition (logic-analyzer) cards include versions with 32 synchronous channels, either single-ended with programmable threshold levels or differential. The large onboard memory can be segmented to record different waveform sequences. While the M4i.77xx cards have been designed using the latest technology they are still software compatible with the drivers from earlier Spectrum digital acquisition cards. Therefore existing customers can use the same software they developed for a 10 year old 60 MS/s digital input card also for an M4i.77xx series 720 MS/s logic analyzer.

In contrast to the parallel PCI buses PCI Express slots contain serial point to point connections. Each connection pair (lane) is able to reach a burst connection speed of 250 MB/s (Gen 1) or 500 MB/s (Gen2). The fast streaming cards from Spectrum with PCI Express x8 Gen 2 interface need a physical connector of x8 or x16. The card interface can adopt to any electrical PCI Express interface, be it x1, x4, x8 or x16 with any PCI Express generation. One advantage of the PCI Express technology is the direct connection of each slot allowing a full transfer bandwidth for each single card. PCI Express is the bus standard for PC based systems for the next couple of years. Today's State-of-the-art motherboards normally have a couple of PCI Express slots but only one or two PCI-X slots. Server and industrial motherboards as well as high performance cosumer motherboards offer normally PCI Express x8 slots.

FIFO mode

The FIFO mode is designed for continuous data transfer between measurement board and PC memory or hard disk. The read (acquisition) transfer rate reached depends on the motherboard and can be up to 3.4 GByte/s on a PCI Express x8 Gen2 slot. The control of the data stream is done automatically by the driver on interrupt request. The complete installed on-board memory is used for buffer data, making the continuous streaming extremely reliable.

Ring buffer mode

The ring buffer mode is the standard mode of all acquisition boards. Data is written in a ring memory of the board until a trigger event is detected. After the event the posttrigger values are recorded. Because of this continuously recording into a ring buffer there are also samples prior to the trigger event visible: Pretrigger = Memsize - Posttrigger.

Star-Hub (Optional)

The star-hub is an additional module allowing the phase stable synchronization of up to 8 boards in one system. Independent of the number of boards there is no phase delay between all channels. The star-hub distributes trigger and clock information between all boards. As a result all connected boards are running with the same clock and the same trigger. All trigger sources can be combined with OR allowing all channels of all cards to be trigger source at the same time. The star-hub is available as either piggy-back version (extending the width of the card) or as extension version (extending the length of the card to full length).

External Trigger Input

The boards can be triggered using an external trigger input, that has the same exact interface capabilities as the installed data lines, either single-ended with programmable threshold or differential.

Gated Sampling

The Gated Sampling option allows data recording controlled by an external gate signal. Data is only recorded if the gate signal has a programmed level. In addition a pre-area before start of the gate signal as well as a post area after end of the gate signal can be acquired. The number of gate segments is only limited by the used memory and is unlimited when using FIFO mode.

Multiple Recording

The Multiple Recording option allows the recording of several trigger events with an extremely short re-arming time. The hardware doesn't need to be restarted in between. The on-board memory is divided in several segments of the same size. Each of them is filled with data if a trigger event occurs. Pre- and posttrigger of the segments can be programmed. The number of acquired segments is only limited by the used memory and is unlimited when using FIFO mode.

Pattern Trigger

For every bit of the digital input the pattern trigger defines individually the expected level or sets the bit to "don't care'. In combination with pulsewidth counter and edge detection the pattern trigger could be used to recognise a huge variety of trigger events.

Timestamp

The timestamp option writes the time positions of the trigger events in an extra memory. The timestamps are relative to the start of recording, a defined zero time, externally synchronized to a radio clock, or a GPS receiver. With this option acquisitions of systems on different locations can be set in a precise time relation.

High Precision PLL

The internal sampling clock of the card is generated using a high precision PLL. This powerful device allows to select the sampling rate with a fine step size making it possible to perfectly adopt to different measurement tasks. Most other cards on the market only allow the setup of fixed sampling rates like 100 MS/s, 50 MS/s, 25 MS/s, 10 MS/s, ... without any possibility to set the sampling rate to any value in between.

Reference Clock

The option to use a precise external reference clock (normally 10 MHz) is necessary to synchronize the board for high-quality measurements with external equipment (like a signal source). It's also possible to enhance the quality of the sampling clock in this way. The driver automatically generates the requested sampling clock from the fed in reference clock.

State Clock

The state analysis mode allows to use an external clock to synchronously sample the applied data. In this mode the clock is allowed to have gaps, as long as the minimum required high and low times are met. To simplify the synchronous sampling of the data, the incoming clock signal can be shifted/delayed with regards to the data, to allow proper data capture. Furthermore the edge of the clock to acquire the data can be defined by software to rising edge, falling edge or both edges (DDR clock mode)

3rd Party Drivers

A lot of third-party products are supported by the Spectrum driver. Choose between LabVIEW, MATLAB, LabWindows/CVI and IVI. All drivers come with examples and detailed documentation.

Programming Examples

Programming examples for Microsoft Visual C++, Borland C++ Builder, Gnu C++ (CygWin), Borland Delphi, Microsoft Visual Basic, C#, J#, VB.Net, Python and LabWindows/CVI are delivered with the driver. Due to the simple interface of the driver, the integration in other programming languages or special measurement software is an easy task.

Linux

All cards are delivered with full Linux support. Pre compiled kernel modules are included for the most common distributions like RedHat, Fedora, Suse, Ubuntu or Debian. The Linux support includes SMP systems, 32 bit and 64 bit systems, versatile programming examples for Gnu C++ as well as the possibility to get the driver sources for own compilation.

Remote Server (Optional)

Using the Spectrum Remote Server it is possible to access the M2i/M3i/M4i card(s) installed in one PC (server) from another PC (client) via local area network (LAN), similar to using a digitizerNETBOX. To operate it the remote server option has to be activated by a software license for any of the Spectrum cards in the remote system.

SBench6

SBench 6 is a powerful and intuitive interactive measurement software. Besides the possibility to commence the measuring task immediately, without programming, SBench 6 combines the setup of hardware, data display, oscilloscope, transient recorder, waveform generator, analyzing functions, import and export functions under one easy-to-use interface.

SCAPP - CUDA Interface (Optional)

The SDK option allows to directly transfer data between the Spectrum card and a NVIDA CUDA GPU card. The GPU card is optimized for parallel data processing. The package comes with a number of detailed examples like FFT or block average.

Windows

This standard driver is included in the card delivery and it is possible to get the newest driver version free of charge from our homepage at any time. There are no additional SDK fees for the classical text-based programming. All boards are delivered with drivers for Windows 7, Windows 8 and Windows 10, all 32 bit and 64 bit.

Documents
File NameInfoLast modifiedFile Size
AN008_Legacy_Windows_Driver_Installation.pdfWindows driver installation of driver versions < 4.005.06.181 MBytes
m4i77_datasheet_english.pdfData sheet of the M4i.77xx series05.06.181 MBytes
m4i77_manual_english.pdfManual of M4i.77xx family06.06.189 MBytes
spc_streaming_datasheet_english.pdfDatasheet of Spectrum Terastore Streaming System05.06.18977 kBytes
sbench6_datasheet_english.pdfData sheet of SBench 605.06.18737 kBytes
m4i_xxxx_labview_english.pdfManual for LabVIEW drivers for M4i / M4x06.06.183 MBytes
sbench6_manual_english.pdfManual for SBench 606.06.186 MBytes
spcm_matlab_manual_english.pdfManual for MATLAB driver M2i/M3i/M4i/DN206.06.18919 kBytes
WINDOWS Drivers + Software
File NameInfoLast modifiedFile Size
spcm_drv_xp_vista_win32_v330b13487.zipM2i/M3i/M4i/M4x driver - last Version for Windows 32 XP / Vista15.11.171 MBytes
spcm_drv_xp_vista_win64_v320b11931.zipM2i/M3i/M4i/M4x driver - last Version for Windows 64 XP / Vista15.11.172 MBytes
spcm_drv_install_5.2.14820.exeM2i/M3i/M4i/M4x/M2p/DN2/DN6 driver for Windows 7, 8, 10 (32/64 bit)06.06.184 MBytes
spcmcontrol_install32bit.exeSpectrum Control Center (32-bit) / Windows 7, 8, 1005.06.1820 MBytes
spcmcontrol_install64bit.exeSpectrum Control Center (64-bit) / Windows 7, 8, 1005.06.1822 MBytes
spcmcontrol_install-1.74b13503_winxp.exeSpectrum Control Center - last Version for Windows XP22.12.177 MBytes
spcm_remote_install.exeWindows Installer for Remote Server Option05.06.182 MBytes
sbench6_v6.4.4b14823.exeSBench 6 (32-bit) Installer / Windows 7, 8, 1006.06.1832 MBytes
sbench6_64bit_v6.4.4b14823.exeSBench 6 (64-bit) Installer / Windows 7, 8, 1006.06.1835 MBytes
sbench6_v6.3.5b13450_winxp.exeSBench6 - last Version for Windows XP22.12.1738 MBytes
spcm_drv_labview_install.exeM2i/M3i/M4i/M4x/DN2/DN6 LabView driver installer05.06.1810 MBytes
spcm_drv_matlab_install.exeM2i/M3i/M4i/M4x/DN2/DN6 Matlab driver + examples installer05.06.181 MBytes
examples_install.exeWindows Examples (C/C++, VB, Delphi, .NET, CVI, Python ...)05.06.181 MBytes
LINUX Drivers + Software
File NameInfoLast modifiedFile Size
spcm_linux_drv_v502b14820.tgzM2i/M3i/M4i/M4x drivers (Kernel + Library) for Linux 32 bit and 64 bit06.06.186 MBytes
spcm_linux_libs_v502b14820.tgzDriver libraries (no Kernel) for Linux 32 bit and 64 bit06.06.182 MBytes
spcm_control_center.tgzSpectrum Control Center05.06.1835 MBytes
spcm_remote_server.tgzSpectrum Remote Server Linux Installer Package05.06.185 kBytes
sbench6_6.4.04b14823-2_i386.debSBench 6 Linux 32 (.deb)06.06.1825 MBytes
sbench6-6.4.04b14823-1.32bit.rpmSBench 6 Linux 32 (.rpm)06.06.1824 MBytes
sbench6_6.4.04b14823-2_amd64.debSBench 6 Linux 64 (.deb)06.06.1824 MBytes
sbench6-6.4.04b14823-1.64bit.rpmSBench 6 Linux 64 (.rpm)06.06.1823 MBytes
spcm_matlab_driver.tgzDrivers + examples for MATLAB for Linux (DEB + RPM)05.06.18162 kBytes
spcm_examples.tgzLinux Examples (C/C++)05.06.182 MBytes
Firmware
File NameInfoLast modifiedFile Size
spcm_firmware.tgzM2i/M2p/M3i/M4i/M4x firmware update (Linux)07.06.1826 MBytes
firmware_update_install.exeM2i/M2p/M3i/M4i/M4x firmware update (Windows)07.06.1811 MBytes
Product Note
NameInfoLast modifiedFile Size
Digitizer Software IntegrationSoftware Support for Modular Digitizers19.02.15707 kBytes
Trigger and SyncTrigger, Clock and Synchronization Details at high-speed Digitizers19.02.151 MBytes
SBench 6 IntroductionSBench 6 - Data Acquisition and Analysis of Digitizer Data19.02.151 MBytes
Application Note
NameInfoLast modifiedFile Size
Solving Data Transfer Bottlenecks on DigitizersSolving Data Transfer Bottlenecks on Digitizers10.11.151 MBytes

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