cd third_party/misoc && python3 make.py --external /home/shashank/Desktop/built/HDMI2USB-misoc-firmware --flash-proxy-dir /home/shashank/Desktop/built/HDMI2USB-misoc-firmware/third_party/flash_proxies --target opsis_hdmi2usb --target-option firmware_filename /home/shashank/Desktop/built/HDMI2USB-misoc-firmware/firmware/lm32/firmware.bin --csr_csv /home/shashank/Desktop/built/HDMI2USB-misoc-firmware/test/csr.csv --platform-option programmer openocd  load-bitstream
Firmware 55728 bytes (9808 bytes left)
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a high performance and small footprint SoC based on Migen

====== Building for: ======
Platform:  opsis
Target:    opsis_hdmi2usb
Subtarget: HDMI2USBSoC
CPU type:  lm32
===========================
Open On-Chip Debugger 0.10.0-dev-00248-gf3b38ff (2016-04-03-07:23)
Licensed under GNU GPL v2
For bug reports, read
    http://openocd.org/doc/doxygen/bugs.html
Warn : Adapter driver 'usb_blaster' did not declare which transports it allows; assuming legacy JTAG-only
Info : only one transport option; autoselect 'jtag'
Warn : incomplete ublast_vid_pid configuration
jtagspi_program
Info : usb blaster interface using libftdi
Error: unable to open ftdi device: device not found

Traceback (most recent call last):
  File "make.py", line 203, in <module>
    prog.load_bitstream(os.path.join("build", build_name + platform.bitstream_ext))
  File "/home/shashank/Desktop/built/HDMI2USB-misoc-firmware/third_party/migen/mibuild/openocd.py", line 19, in load_bitstream
    subprocess.check_call(["openocd", "-f", self.config, "-c", script])
  File "/home/shashank/Desktop/built/HDMI2USB-misoc-firmware/build/conda/lib/python3.5/subprocess.py", line 584, in check_call
    raise CalledProcessError(retcode, cmd)
subprocess.CalledProcessError: Command '['openocd', '-f', 'board/numato_opsis.cfg', '-c', 'init; pld load 0 build/opsis_hdmi2usb-hdmi2usbsoc-opsis.bit; exit']' returned non-zero exit status 1
Makefile:147: recipe for target 'load-gateware' failed
make: *** [load-gateware] Error 1