Hope someone can help. I have a LimeSDR USB (original one, full size) and I can’t seem to get it to work.
I’ve run the LimeQuickTest from within Linux and the RF Loopback test seems to be the point where it failed (although sometimes the LMS7002M Test fails). Here’s an example of the failure:
[ TESTING STARTED ] ->Start time: Mon Jun 27 21:30:02 2022 ->Device: LimeSDR-USB, media=USB 3.0, module=FX3, addr=1d50:6108, serial=0009060A02430D1E, HW=4, GW=2.23 Serial Number: 0009060A02430D1E Chip temperature: 45 C [ Clock Network Test ] ->FX3 GPIF clock test Test results: 38060; 41816; 45572 - PASSED ->Si5351C test CLK0: 17554 / 17554 - PASSED CLK1: 17554 / 17554 - PASSED CLK2: 17554 / 17554 - PASSED CLK3: 17554 / 17554 - PASSED CLK4: 17554 / 17554 - PASSED CLK5: 17554 / 17554 - PASSED CLK6: 17554 / 17554 - PASSED ->ADF4002 Test Result: 10 - PASSED ->VCTCXO test Results : 5112921 (min); 5113057 (max) - PASSED ->Clock Network Test PASSED [ FPGA EEPROM Test ] ->Read EEPROM ->Read data: 11 02 16 11 02 16 02 ->FPGA EEPROM Test PASSED [ LMS7002M Test ] ->Perform Registers Test ->External Reset line test Reg 0x20: Write value 0xFFFD, Read value 0xFFFD Reg 0x20: value after reset 0x0FFFF ->LMS7002M Test PASSED [ RF Loopback Test ] Note: The test should be run without anything connected to RF ports ->Configure LMS TuneVCO(CGEN) - failed to lock (cmphl!=0) SetFrequencyCGEN(80 MHz) failed TuneVCO(CGEN) - failed to lock (cmphl!=0) SetFrequencyCGEN(491.52 MHz) failed Failed to set sample rate ->RF Loopback Test FAILED => Board tests FAILED <= Elapsed time: 1.15 seconds
I’m not a super strong LimeSDR user, in fact I only really ever have used it once, so I could really use some help on the next steps for troubleshooting. I searched and didn’t see any similar problems.