fl2k - low samplerate/ no rf-output

Marcus Müller marcus.mueller at ettus.com
Sun May 20 08:06:23 UTC 2018


Have you tried getting output with one of the other tools? 

Best regards,
Marcus

On 16 May 2018 13:18:51 GMT+02:00, R B <abcd at bitmessage.ch> wrote:
>Hello Gang ;)
>
>i have some troubles, properly "misusing" my vga-adapter.
>the samplerate while testing with fl2k_test is pretty low (~50MS/s) and
>i am not sure if this is some hardware issue or. RF-Output isn´t
>detectable either. i am using a lenovo thinkpad x1 hybrid (1294).
>any help is appreciated.
>
>
>$ fl2k_test -s 162e6
>Reporting PPM error measurement every 10 seconds...
>Press ^C after a few minutes.
>real sample rate: 52862885 current PPM: -673686 cumulative PPM: -673686
>real sample rate: 52973828 current PPM: -673001 cumulative PPM: -673342
>real sample rate: 53014975 current PPM: -672747 cumulative PPM: -673143
>real sample rate: 52979890 current PPM: -672964 cumulative PPM: -673098
>^CSignal caught, exiting!
>
>$ fl2k_test -s 51e6
>Reporting PPM error measurement every 10 seconds...
>Press ^C after a few minutes.
>real sample rate: 51037366 current PPM: 733 cumulative PPM: 733
>real sample rate: 51031823 current PPM: 624 cumulative PPM: 678
>real sample rate: 51025418 current PPM: 498 cumulative PPM: 617
>real sample rate: 51023557 current PPM: 462 cumulative PPM: 578
>real sample rate: 51019821 current PPM: 389 cumulative PPM: 540
>real sample rate: 51017641 current PPM: 346 cumulative PPM: 507
>^CSignal caught, exiting!
>
>$ sudo lspci -vv|grep "USB 3" -A 200
>0f:00.0 USB controller: NEC Corporation uPD720200 USB 3.0 Host
>Controller (rev 04) (prog-if 30 [XHCI])
>Subsystem: Lenovo uPD720200 USB 3.0 Host Controller
>Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
>Stepping- SERR- FastB2B- DisINTx+
>Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
><MAbort- >SERR- <PERR- INTx-
>Latency: 0, Cache Line Size: 64 bytes
>Interrupt: pin A routed to IRQ 18
>Region 0: Memory at f1400000 (64-bit, non-prefetchable) [size=8K]
>Capabilities: [50] Power Management version 3
>Flags: PMEClk- DSI- D1- D2- AuxCurrent=375mA
>PME(D0+,D1-,D2-,D3hot+,D3cold+)
>Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME-
>Capabilities: [70] MSI: Enable- Count=1/8 Maskable- 64bit+
>Address: 0000000000000000 Data: 0000
>Capabilities: [90] MSI-X: Enable+ Count=8 Masked-
>Vector table: BAR=0 offset=00001000
>PBA: BAR=0 offset=00001080
>Capabilities: [a0] Express (v2) Endpoint, MSI 00
>DevCap:    MaxPayload 128 bytes, PhantFunc 0, Latency L0s unlimited, L1
>unlimited
> ExtTag- AttnBtn- AttnInd- PwrInd- RBE+ FLReset-
>DevCtl:    Report errors: Correctable- Non-Fatal- Fatal- Unsupported-
> RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop+
> MaxPayload 128 bytes, MaxReadReq 512 bytes
>DevSta:    CorrErr+ UncorrErr- FatalErr- UnsuppReq+ AuxPwr+ TransPend-
>LnkCap:    Port #0, Speed 5GT/s, Width x1, ASPM L0s L1, Exit Latency
>L0s <4us, L1 unlimited
> ClockPM+ Surprise- LLActRep- BwNot- ASPMOptComp-
>LnkCtl:    ASPM L1 Enabled; RCB 64 bytes Disabled- CommClk+
> ExtSynch- ClockPM+ AutWidDis- BWInt- AutBWInt-
>LnkSta:    Speed 5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive-
>BWMgmt- ABWMgmt-
>DevCap2: Completion Timeout: Not Supported, TimeoutDis+, LTR+, OBFF Not
>Supported
>DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR-, OBFF
>Disabled
>LnkCtl2: Target Link Speed: 5GT/s, EnterCompliance- SpeedDis-
>Transmit Margin: Normal Operating Range, EnterModifiedCompliance-
>ComplianceSOS-
>  Compliance De-emphasis: -6dB
>LnkSta2: Current De-emphasis Level: -6dB, EqualizationComplete-,
>EqualizationPhase1-
>  EqualizationPhase2-, EqualizationPhase3-, LinkEqualizationRequest-
>Capabilities: [100 v1] Advanced Error Reporting
>UESta:    DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF-
>MalfTLP- ECRC- UnsupReq- ACSViol-
>UEMsk:    DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF-
>MalfTLP- ECRC- UnsupReq- ACSViol-
>UESvrt:    DLP+ SDES+ TLP- FCP+ CmpltTO- CmpltAbrt- UnxCmplt- RxOF+
>MalfTLP+ ECRC- UnsupReq- ACSViol-
>CESta:    RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr-
>CEMsk:    RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+
>AERCap:    First Error Pointer: 00, GenCap- CGenEn- ChkCap- ChkEn-
>Capabilities: [140 v1] Device Serial Number ff-ff-ff-ff-ff-ff-ff-ff
>Capabilities: [150 v1] Latency Tolerance Reporting
>Max snoop latency: 0ns
>Max no snoop latency: 0ns
>Kernel driver in use: xhci_hcd
>
>
>$ lsusb
>Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching
>Hub
>Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
>Bus 004 Device 002: ID 1d5c:2000
>Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
>Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
>Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching
>Hub
>Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
>
>$ usb-devices |grep "Bus=04 Lev=01" -A 100
>T: Bus=04 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 3 Spd=5000 MxCh= 0
>D: Ver= 3.00 Cls=ef(misc ) Sub=02 Prot=01 MxPS= 9 #Cfgs= 1
>P: Vendor=1d5c ProdID=2000 Rev=02.00
>C: #Ifs= 3 Cfg#= 1 Atr=80 MxPwr=496mA
>I: If#= 0 Alt= 0 #EPs= 0 Cls=10() Sub=00 Prot=00 Driver=(none)
>I: If#= 1 Alt= 0 #EPs= 2 Cls=10() Sub=02 Prot=00 Driver=(none)
>I: If#= 2 Alt= 0 #EPs= 1 Cls=10() Sub=02 Prot=00 Driver=(none)
>
>$ lsmod|grep usb
>
>$ lsmod|grep xhci
>
>
>thank you and cheers
>robin

-- 
This was written on my cellular phone. whilst an impressive piece of engineering, this might not be the perfect device to write emails on - please excuse my brevity.
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