Jump to content

Eck

Members
  • Posts

    3
  • Joined

  • Last visited

Eck's Achievements

Newbie

Newbie (1/4)

0

Reputation

  1. Hi @JColvin, OK, thanks for that information. So, just to be clear, does the device identify at 12Mbps if identification at 480Mbps fails, or does identification take place at 480Mbps? Thanks, Alex.
  2. Hi JColvin, Thanks for your help and taking the time to look into this for me. On our board D+ pins and D- pins are linked on the PCB as you describe. The stubs created are small but could be causing a problem, however a second USB C connector uses an identical layout with a USB/UART device and it works fine with a 300mm extension inside the unit and a 2m cable outside. My next step is to make a custom M/F USB C cable so that I can see what happens as the device is connected and identified. I expect JTAG-SMT2 to identify as a full-speed device at 12Mbps. Can you conform that is the case, please? Thanks, Alex.
  3. Hello, I'm using a JTAG-SMT2-NC module on a custom board with a Xilinx ZU9EG as the target. The USB connector on the board is USB C. The board is mounted in an enclosure with a USB C to C bulkhead connector to gain access to the JTAG-SMT2-NC when the enclosure is closed. A USB 3.1 male to female extension cable (~300mm long) connects the board to the bulkhead connector. If I connect direct from the board to my PC everything works as you would expect, Vivado connects to the target with no problems. I use a 2m USB C to USB A for the cable. However, If I connect through the bulkhead connector (through the extension cable) the JTAG-SMT2-NC is not recognised as a valid USB device (error message attached) and Vivado cannot connect to the target. If I connect straight from the board to a USB C host port on my PC i get the same result; JTAG-SMT2-NC only works when using a direct connection to a USB A host port. So, for now we have to keep the lid off the enclosure to gain access to the JTAG port but this isn't ideal, there are hazardous voltages inside. Is it possible to operate JTAGE-SMT2-NC through a USB 3.1 extension cable or direct to a USB C host port? Thank you, Alex.
×
×
  • Create New...