Search the Community

This request for help is duplicated at Xilinx forum. I started working with Xilinx Arty Z7-20 development board with Vivado 2019.1. I fail to open hardware target. The localhost is seen to be connected but Hardware Manager is said to be unconnected and after refreshing server I get the following: refresh_hw_server {localhost:3121} WARNING: [Labtoolstcl 44-27] No hardware targets exist on the server [localhost:3121] Check to make sure the cable targets connected to this machine are properly connected and powered up, then use the refresh_hw_server command to re-register the hardware targets. 1. I tried both “QSPI” and “JTAG” settings of JP4 jumper. In wain. 2. I learned from Xilinx and Digilent forums the possible culprit is poor cables drivers installation. I remember I included the cables drivers during initial installation. 3. I re-ran Vivado update without uninstall and included cable drivers again (checked their respective checkbox). But after second trial I saw they are again proposed to be installed – their checkbox is still unchecked. The hardware target wasn’t opened. 4. I followed the instructions in https://www.xilinx.com/support/answers/59128.html. I ran the cables driver installation batch file as administrator in Windows and it seemed to success. Log is attached. But in wain. The hardware target wasn’t opened. 5. Need to emphasize the cable I use to power up the board and to program it is the plainly usual USB A to micro B, wihch I connect to USB port of the board. From reading the Vivado programing and debugging ug908 document it could built up an impression that special supported JTAG cables are needed. But it would be too strange - the Arty Z7 board manual doesn't mention any need in a special cable and Digilent specifies this cable functionality is already built in into their boards. Please, help. install_drivers_wrapper.log

Hi All, I have recently downloaded Vivado 2018.2 and begun playing around with CMOD A7 35T. I did the the blinky tutorial and then just finished Cmod A7 Programming Guide. At the end of which, I programmed the button project into the flash memory of the device. I then disconnected the device and plugged it back in to verify the code was loaded onto the device on startup. The code indeed loaded and I can light the LEDs with the corresponding button; however, now my host pc cannot find the target device anymore. I tried restarting Vivado and plugging and unplugging the FPGA board and nothing seems to get it to show up in the hardware manager wizard or autoscan. I'm pretty new to FPGA programming so I could use some help to get my board reconnected and the program in Flash erased. Thanks