KerberosSDR EEPROM Update

1

Just plug in your KerberosSDR (ensuring it is powered from the power port), and run the script ./eeprom_init.sh . The script will guide you to use the DIP switches to turn all units off, except the currently requested tuner. It will then flash the realtek_oem firmware, then the serial number, before asking you to turn off that tuner, and turn on the next one. Answer Y each time it asks to flash.
For me it does not work. Why?
Am I forgetting something?

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2

You still need to enter the folder ~/krakensdr_doa/heimdall_daq_fw/util first which is where the script is stored.

There is a script in ~/krakensdr_doa/heimdall_daq_fw/util/eeprom_init.sh that can guide your through this. Just plug in your KerberosSDR (ensuring it is powered from the power port), and run the script ./eeprom_init.sh . The script will guide you to use the DIP switches to turn all units off, except the currently requested tuner. It will then flash the realtek_oem firmware, then the serial number, before asking you to turn off that tuner, and turn on the next one. Answer Y each time it asks to flash.

3

I know this reply is late, but there is an error in the instructions. The file name is proceeded with kerberossdr. In other words the filename is “kerberossdr_eeprom_init.sh” then it will run correctly. Also, it does not want anything but an Enter for each module for the first prompt, then second and third prompts require a Y. It is a little confusing and not clear, but that is what I found to successfully modify them.

What I couldn’t find is the code to make the external switches for each port to work with the Kraken Pi image. Spent several hours yesterday trying to get these working.

4

I’ll update the wiki.

For the switches if you’re using the Pi4 image external switches should just work without any changes.

If you’re compiling from scratch you just need to uncomment a line in the _daq_core Makefile

# Uncomment if you are using third party switches from ckoval on a Rpi device and have pigpio installed
#PIGPIO=-lpigpio -DUSEPIGPIO
5

New to the kraken software… I found this step on this page

And it isn’t very clear about what needs to happen. It says it is going to flash the oem software and set a serial number. What actually needs to happen is flash the oem firmware, then flash the KerberosSDR firmware where it sets a serial number.

When done correctly you can run rtl_test and you should see 4 devices with KerboerosSDR and 4 sequential serial numbers. 1000-1003.

Found 4 device(s):
  0:  RTL-SDR, KerberosSDR, SN: 1000
  1:  RTL-SDR, KerberosSDR, SN: 1001
  2:  RTL-SDR, KerberosSDR, SN: 1002
  3:  RTL-SDR, KerberosSDR, SN: 1003