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JHuis3's avatar
JHuis3
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6 years ago

USB-Blaster II devices, how to distinguish?

I have multiple boards connected over usb and have multiple 09fb:6810 devices. With udev I would like to distinguish them individually. How to do that? Since 'lsusb -v -s 09fb:' gives identical outp...
JohnT_Altera's avatar
JohnT_Altera
Icon for Regular Contributor rankRegular Contributor
4 years ago

Hi,


I would recommend you to use jtagconfig command rather than lsusb?


  • JHuis3's avatar
    JHuis3
    Icon for New Contributor rankNew Contributor
    4 years ago

    My original question is how to distinguish the various boards while I am connecting them to the server.

    While connecting, using udev rules, I can create devices such as /dev/tty_"uniq_name" pointing to the corresponding /dev/ttyUSB* devices. Such that I can use the name /dev/tty_"uniq_name" to connect to the board. I do this based on serial number, for instance. Similarly for the jtag (and other uart) ports.

    I tried to do the same for jtag ports but I do not understand why/how the USB ids change from 09fb:6810 to 09fb:6010 after running jtagconfig. If that can be confirmed at least. I do not understand why this happens.

    For tty ports the USB id is 09fb:6001 for the boards I have.

    For instance for a DE1SoC:

    SUBSYSTEM=="tty", SUBSYSTEMS=="usb", ATTRS{idVendor}=="0403", ATTRS{idProduct}=="6001", ATTRS{serial}=="A106I60D", SYMLINK+="tty_de10soc"
    SUBSYSTEM=="usb", ENV{DEVTYPE}=="usb_device", ATTRS{idVendor}=="09fb", ATTRS{idProduct}=="6010", ATTRS{serial}=="DE-SoC-006-00660", SYMLINK+="jtag_de10soc"

    The second device being 09fb:6010 is only present after running jtagconfig. Before that device was indicated as 09fb:6810. I also suspect (but maybe I'm wrong) one can add a device as well after programming the FPGA. I would like to be able to access such interfaces uniquely per board as well from the server.