USB Blaster does not see Bladerf-Micro

[Igor13th]

Hello,
We have two bladeRF-micro 2.0 AX4 devices(PCB version ASMB REV1.4). They are working pretty well and can be reprogrammed via bladeRF-cli.
The problem is that "quartus_pbm -a" command can not not detect both of them. We have ALTERA USB Blaster Rev.C. The result using Quartus Prime is following: "Unable to scan device chain...". We power Bladerf devices from USB, connect USB Blaster to J5 JTAG connector(checked also coincidence between GND pins so connected USB Blaster correctly. USB Blaster can detect other devices but cant detect both bladeRF devices. So we think the problem is with bladerfs. How can we debug this problem?
Result of command "quartus_pbm -a":

Code: Select all

Info: Command: quartus_pgm -a
Info (213045): Using programming cable "USB-Blaster [USB-0]"
1) USB-Blaster [USB-0]
  Unable to read device chain (JTAG chain broken)
  

Also tried different versions of quartus built-in programmer on GNU linux and Windows.
Can anyone help?
Regards.

[robert.ghilduta]

Please ensure you are using a 1.8V compatible JTAG connector. Also, please try to flash an image to the FPGA, sometimes the USBBlaster likes already programmed FPGAs.

[carterodell]

You must use a JTAG connector that can handle 1.8Vwordle today Another thing you can do is try flashing an image onto pre-programmed FPGAs to determine if the USBBlaster is compatible with them.