LimeSDRmini problem Rx impossible, Tx looks good

Projects LimeSDR
1

Hello,
I’m using LimeSDRmini on Linux Mint on USB3 port with gnuradio gr-osmocom-source
and gr-LimeSuite-source blocks

Problem with RxPath:
i can’t receive any signals, no radioBC, no ISM, no GSM …
Tuning to the frequencies seems working
The FFTsink shows a powerful center peak at all tuned frequencies.

In the meantime i think the Mini is broken in the RxPath, any suggestions?

Output of osmocom-source:
########################################################
gr-osmosdr v0.1.4-98-gc653754d (0.1.5git) gnuradio 3.7.11.1
built-in source types: file fcd rtl rtl_tcp uhd hackrf bladerf rfspace airspy soapy redpitaya
[INFO] Make connection: ‘LimeSDR Mini [USB 3.0] 1D3AD4B1C886BA’
[INFO] Reference clock 40.00 MHz
[INFO] Device name: LimeSDR-Mini
[INFO] Reference: 4e+07 MHz
[INFO] LMS7002M calibration values caching Disable
[INFO] RX LPF configured
e[1me[31m[ERROR] Rx Calibration: Frequency out of range, available range: from 2.5 to 120 MHze[0m
###########################################################

Output of LimeSuite-Source (RX) block

##################
Devices found: 1
##################
Device list:
Nr.:|0|device:|LimeSDR Mini, media=USB 3.0, module=FT601, addr=24607:1027, serial=1D3AD4B1C886BA
##################
##################
New connection
Reference clock 40.00 MHz
Device number 0 from the list is used.
##################

INFO: device_handler::set_chip_mode(): SISO mode set for device number 0.
RX LPF configured
INFO: source_impl::init_stream(): source channel 0 (device nr. 0) stream setup done.

Soapy installed from source:
######################################################

Soapy SDR – the SDR abstraction library

######################################################

Found device 0
addr = 24607:1027
driver = lime
label = LimeSDR Mini [USB 3.0] 1D3AD4B1C886BA
media = USB 3.0
module = FT601
name = LimeSDR Mini
serial = 1D3AD4B1C886BA

LimeSuite installed from source
######################################################

LimeSuite information summary

######################################################

Version information:
Library version: v18.04.1-g1c490687
Build timestamp: 2018-04-26
Interface version: v2018.3.0
Binary interface: 18.04-1

System resources:
Installation root: /usr/local
User home directory: /home/peter
App data directory: /home/peter/.local/share/LimeSuite
Config directory: /home/peter/.limesuite
Image search paths:
- /home/peter/.local/share/LimeSuite/images
- /usr/local/share/LimeSuite/images

Supported connections:

  • FT601
  • FX3
  • PCIEXillybus
    #####################################################

LimeSuiteGui get info summary

[05:35:04] INFO: Disconnected control port
[05:35:09] INFO: Reference clock 40.00 MHz
[05:35:09] INFO: Connected Control port: LimeSDR-Mini FW:5 HW:0 Protocol:1 GW:1.24 Ref Clk: 40.00 MHz
[05:36:41] INFO: Disconnected control port

2

Maybe you have not set the LNAH/LNAW antenna? You could test this in gqrx.

3

Hi, installed gqrx on a Windows Machine.
Switched antenna from LNAW > LNAH > LNAL_NC and back, nothing changes but the power of 100MHz signal and its multiples. No reception over the whole frequency range.
Antenna > none turns the 100MHz signal off, switch seems working?

4

Next test, same result, the Mini is broken…

LimeSDR-Mini_QuickTest_1v1:

[ TEST STARTED ]
->Start time: Sun May  6 07:58:14 2018

->Device: LimeSDR Mini, media=USB 3, module=FT601, serial=1D3AD4B1C886BA, index=0
  Serial Number: 1D3AD4B1C886BA

[ Clock Network Test ]
->REF clock test
  Test results: 52559; 220; 13416 - PASSED
->VCTCXO test
  Results : 6711020 (min); 6711185 (max) - PASSED
->Clock Network Test PASSED

[ FPGA EEPROM Test ]
->Read EEPROM
  data: 18 02 24 18 02 24 2
->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 ]
->Configure LMS
->Run Tests (TX_2 -> LNA_W):
->On board loopback test:
  Test 1:(SXR=1000.0MHz, SXT=1005.0MHz, TXPAD=8): Result:(-75.9 dBFS, 5.00 MHz) - FAILED
->Configure LMS
->Run Tests (TX_1 -> LNA_H):
->On board loopback test:
  Test 1:(SXR=2100.0MHz, SXT=2105.0MHz, TXPAD=8): Result:(-50.9 dBFS, 5.00 MHz) - FAILED
->RF Loopback Test FAILED

=> Board tests FAILED <=

Elapsed time: 6.58 seconds
5

where did you get this test from “LimeSDR-Mini_QuickTest_1v1”

6
7

Hello,
I am encountering the same exact problem. Did you ever find a solution?

I tried running the software you linked to test the board, but ours is saying no board connected.

Thanks,
Daniel

8

Hi @dmagley,

Could you try to execute the software as Administrator, please.