Search found 91 matches

by bglod
Wed Feb 14, 2018 10:52 am
Forum: Software development
Topic: Is possible to measure swr with gnuradio?
Replies: 1
Views: 131

Re: Is possible to measure swr with gnuradio?

Maybe? I wouldn't expect great performance or accuracy though, and you may have to build/buy additional components. For one, the bladeRF is not calibrated, so for the best accuracy you'd need test equipment to build a calibration table. You might be able to ignore this, but keep in mind that it coul...
by bglod
Fri Feb 09, 2018 11:51 am
Forum: Hardware and RF
Topic: GSM and amplifiers
Replies: 3
Views: 1045

Re: GSM and amplifiers

Excellent! Was it saturation that was causing the problem, or was it something else? (In case someone with a similar issue comes across this post).
by bglod
Fri Jan 26, 2018 11:15 pm
Forum: Troubleshooting
Topic: Error Loading FPGA with Quartus GUI Built bitstream
Replies: 3
Views: 404

Re: Error Loading FPGA with Quartus GUI Built bitstream

Was that not what you were doing before? I'm a little surprised you were able to get Quartus to output an RBF otherwise -- there are a load of options that you'd have to change in a new project in order to get the design to compile without errors, let alone generate an RBF! What I was referring to e...
by bglod
Thu Jan 25, 2018 5:10 pm
Forum: Hardware and RF
Topic: Communication between the two bladeRF boards
Replies: 3
Views: 583

Re: Communication between the two bladeRF boards

Here are some things you can try: Issue the start commands on the same line, separated by a semicolon: "start rx; start tx". You'll still see a delay with this method, but it'll be much less than typing each command on a separate line. Use timestamps to tell the receiver and transmitter to start at ...
by bglod
Thu Jan 25, 2018 4:08 pm
Forum: Troubleshooting
Topic: Problem building yatebts. Anyone has a clue?
Replies: 8
Views: 578

Re: Problem building yatebts. Anyone has a clue?

Yeah, so there is a similar issue #416 in their issue tracker about gcc6. I decided to go straight to gcc5 from the Arch AUR . If you're running another Linux distro, you'd have to take whatever steps are necessary to build and/or install gcc5 (v5.5.0). Then run the following in the root of your che...
by bglod
Thu Jan 25, 2018 7:11 am
Forum: Software development
Topic: Adding custom Verilog modules
Replies: 6
Views: 468

Re: Adding custom Verilog modules

You didn't have to make a separate output port for each LED. You could have kept it as a single bus of width 3 and just have the single port map. It would look something like this: port map ( module_bus => toplevel_bus -- the left side is a 2:0 bus, the right is 3:1 ); Or, you could have done the fo...
by bglod
Wed Jan 24, 2018 4:37 pm
Forum: Software development
Topic: Adding custom Verilog modules
Replies: 6
Views: 468

Re: Adding custom Verilog modules

Take a look at lines 585, 586, and 587 in your bladerf-hosted.vhd file as the error is suggesting. The syntax "[0]" is incorrect with the square brackets. In VHDL, to slice an array type, parentheses are used: "(0)". Alternatively, you may simplify your LED_out port map to just "LED_out => led" if y...
by bglod
Wed Jan 24, 2018 3:26 pm
Forum: Troubleshooting
Topic: Problem building yatebts. Anyone has a clue?
Replies: 8
Views: 578

Re: Problem building yatebts. Anyone has a clue?

Yate is trying to generate that object file from the following source files: mbts/GPRS/MSInfo.h mbts/GPRS/MSInfo.cpp In this case, MS is "multislot", so please disregard my ignorant post earlier. (In my defense, I hadn't read the code before making the comment!) I run Arch Linux, so I just grabbed t...
by bglod
Tue Jan 23, 2018 10:34 am
Forum: Troubleshooting
Topic: Problem building yatebts. Anyone has a clue?
Replies: 8
Views: 578

Re: Problem building yatebts. Anyone has a clue?

The first error there is talking about MSInfo.o, and that error is likely killing the rest of the make script. I could be wrong, but MSInfo sounds like some Microsoft thing, which sounds suspicious to me if you're building on Linux. Can you post more details leading up to that error? Also try runnin...