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Allocating independent MIL digitizers on Matrox Radient eV boards


You can allocate up to 4 independent MIL digitizers on your Matrox Radient eV-CL and Matrox Radient eV-CXP (depending on the version), using MdigAlloc(). Independent digitizers have different device numbers and use different acquisition paths.

Matrox Radient eV-CL

The number of independent digitizers that you can allocate on Matrox Radient ev-CL is dependent on the version in use:

  • Matrox Radient eV-CL DB has 2 acquisition paths (M_DEV0 and M_DEV1).

    Matrox Radient eV-CL QB has 4 acquisition paths (M_DEV0 to M_DEV3).

    With both Matrox Radient eV-CL DB and QB, each acquisition path supports a video source in the Camera Link Base configuration.

  • Matrox Radient ev-CL SF has only 1 acquisition path (M_DEV0).

    Matrox Radient eV-CL DF has 2 acquisition paths (M_DEV0 to M_DEV1).

    With both Matrox Radient eV-CL SF and DF, each acquisition path supports a video source in the Camera Link Medium, Full, or 80-bit configuration.

Matrox Radient eV-CXP

You must allocate a digitizer for each CoaXPress link (CXP link). A CXP link contains all the connections and components to capture from 1 video source. Matrox Radient eV-CXP Dual supports 2 links, whereas Matrox Radient eV-CXP Quad supports 4 links.

When connecting a video source with multiple connections to Matrox Radient eV-CXP, the master connection determines which device number should be used when allocating your digitizer. For example, if the master connector is plugged into CXP 0, use M_DEV0 to allocate the digitizer. If, however, the master connector is plugged into CXP 3, use M_DEV3 to allocate the digitizer. The other connectors for the same video source (called extension connectors) combine with the master connection to form a CXP link.

Both of the following configurations depict two CXP links, each with a master connection and an extension connection.

In configuration 1, you should allocate a digitizer for video source 1 using M_DEV0; whereas, you should allocate a digitizer for video source 2 using M_DEV2.

In configuration 2, you should allocate a digitizer for video source 1 using M_DEV0; whereas, you should allocate a digitizer for video source 2 using M_DEV1. Configuration 2 has a slight speed advantage to configuration 1 when the digitizer initializes, since the available devices will be scanned for initialization from 0 to 3.