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AdamLevine's avatar
AdamLevine
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1 year ago

USB Blaster II

We are using MAXV and Quartus Prime Lite Edition. We purchased a USB-Blaser II. We are able to program the device, however in between "sessions" when we plug in the USB it sometimes fails to recogn...
Hdl
lixy's avatar
lixy
Icon for Contributor rankContributor
1 year ago

Hi,

1- Did you try on another PC?

2- Did you try on another board? Only this board is having this problem?

3- Did this connection ever worked normally before? Did this problem happen after working for a while, or it never really worked well?

4- Could you screenshot the JTAG part schematic? Double check the JTAG pin connection is correct.

MAX® V Device Family Pin Connection Guidelines

Best Regards,

Xiaoyan

  • AdamLevine's avatar
    AdamLevine
    Icon for New Contributor rankNew Contributor
    1 year ago

    Hi Xiaoyan,

    Thanks for the quick reply, I apologize for the delay as I only work on this intermittently. In answer to your questions:
    1) Did you try on another PC?

    -- Unfortunately I only have the tools on one machine and am working remotely so I cannot try this quickly. I'll give it a try next time I am on site.

    2) Did you try on another board? Only this board is having this problem?

    -- It is happening on two boards, however they are the same development / prototype board so are essentially the same. I don't think it is board related as it happens with the JTAG unplugged. As stated the tell-tale sign is the JTAG frequency does not populate when in hardware setup dialog. The JTAG does not need to be plugged in for this.

    3- Did this connection ever worked normally before? Did this problem happen after working for a while, or it never really worked well?

    -- This is our first time using the tools. The first time we plugged it in it worked fine. Seems like the problem occurs after unplug / plug the USB cable, even if quartus is shut down. I never has worked "well", once it works it is fine and repeatable. Once it stops working then I go through the procedure described above:

    "go into device manager and "uninstall device" and then unplug/plug in the cable to get it to work"

    4) Could you screenshot the JTAG part schematic? Double check the JTAG pin connection is correct.

    -- I attached PDF of the MAX V / JTAG portion of schematic. Since when it works, it works well and it happens without the JTAG connected I don't believe it is HW/PCB related.

    Although it is cumbersome, I am able to work with it as I am not making frequent changes to the CPLD, my concern is when we finally go into production.

    Probably won't be of help but here is some more info on PC

    Device name ALevineHP
    Processor AMD Ryzen 5 7530U with Radeon Graphics 2.00 GHz
    Installed RAM 16.0 GB (15.4 GB usable)
    Device ID 8BBxxxxx-FB75-417F-8536-xxxxx
    Product ID 00342-22431-05798-AAOEM
    System type 64-bit operating system, x64-based processor
    Pen and touch Touch support with 10 touch points

    Edition Windows 11 Home
    Version 24H2
    Installed on ‎12/‎8/‎2024
    OS build 26100.4061
    Experience Windows Feature Experience Pack 1000.26100.84.0

    Thanks again,

    Adam