fl2k - low samplerate/ no rf-output

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R B abcd at bitmessage.ch
Wed May 16 11:18:51 UTC 2018


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
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