Reducing sample rate to 1 MHz did not help. The USB is connected to PCIe with: Link Width: 4x, Link Speed: 8.0 GT/s. Original SW gives expected results on much slower machine.
Also I take back the problem with triggering. I thought the data would start with the first sample matching the triggers, but that is not case even for the official SW, as there is (random?) number of samples before that. So it is more likely I do not really understand how triggers work. But again triggering is not really that important for me. Finally, I tried different firmware, however only the one extracted from v3.5.7 actually works (the later ones are identical). From all the tests it looks though, that the data are acquired correctly, i.e. there are no missing samples, so the only issue seams to be the length, when if 1e6 samples is requested, the sigrok-cli will claim to get only 501516, while the data actually contains 1001499. The factor of two and the difference around 1500 is typical. On pátek 8. srpna 2025 9:55:36, středoevropský letní čas Adrian Godwin wrote: > Yes, I meant for diagnostic purposes. > You may be able to increase the speed by changing the USB card from a > single lane PCI express to a 2-lane card. > > On Thu, Aug 7, 2025 at 9:55 PM Radek Machulka <[email protected]> > > wrote: > > Thank you for the suggestions. I should have mentioned that I tried two > > different PCs, one with linux and one with windows. Unfortunately, > > reducing > > the sample rate is not an option for my application, however I can try > > just > > to see if it helps. > > > > On Thu, Aug 7, 2025, 20:33 Adrian Godwin <[email protected]> wrote: > >> I don't have that model, but on other USB devices such as the Saleae > >> (using their own drivers) I have found that the capture performance is > >> dependent on your PC's USB and PCI performance. > >> > >> Test it at lower sample rates to see if that makes a difference. > >> > >> > >> On Thu, Aug 7, 2025 at 2:57 PM Radek Machulka <[email protected]> > >> > >> wrote: > >>> Dear all, > >>> > >>> I am having difficulties with my Kingst LA 5016 logic analyzer with > >>> sigrok- > >>> cli, as it will not acquire requested number of samples. > >>> > >>> As a consequence (at least I believe it is a consequence of unexpectedly > >>> short > >>> data), I may get bunch of other errors during saving such data into > >>> files > >>> (both CSV and binary), ranging from empty files up to SIGSEGV/SIGABRT. > >>> There > >>> can also be "FRAME-BEGIN\n", "FRAME-END\n" in both CSV and binary files. > >>> Sometimes both, sometimes only one, sometimes none. > >>> > >>> There can be situations when the acquisition does not start at all, or > >>> when > >>> the acquisition ends, however the device (judging based on its LED) > >>> seams to > >>> keep acquiring. The single acquisitions (the ones long enough to be > >>> noticeable) take significantly more time with respect to official SW > >>> (not real > >>> issue, just an observation). > >>> > >>> The triggering looks also bit off, as the data clearly start away from > >>> requested triggers. Without triggering, the behavior is the same (again > >>> here, > >>> no real issue, I can live without the triggering). > >>> > >>> I use the nightly build, and the acquisition is initiated like this: > >>> > >>> sigrok-cli-NIGHTLY-x86_64-debug.AppImage --driver kingst-la2016 > >>> --channels > >>> CH0,CH1,CH2 --config samplerate=500m --samples 100m --triggers > >>> CH0=r,CH1=0,CH2=0 --wait-trigger --output-format binary --output-file > >>> [email protected] > >>> > >>> with (typical) following output: > >>> > >>> Device only sent 50001534 samples. > >>> > >>> In this particular case, the final file contains neither requested 1M > >>> nor > >>> announced 50001534 but 100001591 samples. > >>> > >>> With CSV format, the errors may look something like this: > >>> > >>> sr: output/csv: Expecting 4194304 samples, got 877880 > >>> sr: output/csv: Expecting 4194304 samples, got 879391 > >>> Device only sent 500001567 samples. > >>> > >>> or: > >>> > >>> sr: output/csv: Expecting 500058 samples, got 501513 > >>> Device only sent 501513 samples. > >>> > >>> > >>> Here is complete output from the sigrok-cli with loglevel 5: > >>> > >>> sigrok-cli-NIGHTLY-x86_64-debug.AppImage --driver kingst-la2016 > >>> --channels > >>> CH0,CH1,CH2 --config samplerate=500m --samples 10m --triggers > >>> CH0=r,CH1=0,CH2=0 --wait-trigger --output-format binary --output-file > >>> [email protected] --loglevel 5 > >>> > >>> sr: [00:00.000757] log: libsigrok loglevel set to 5. > >>> sr: [00:00.000833] backend: libsigrok 0.6.0-git-f06f788/4:0:0. > >>> sr: [00:00.001455] backend: Libs: glib 2.64.6 (rt: 2.64.6/6406:6), zlib > >>> 1.2.11, libzip 1.5.1, minilzo 2.10, libserialport 0.1.1/1:0:1 (rt: > >>> 0.1.1/1:0:1), libusb-1.0 1.0.29.11953 API 0x01000107, hidapi 0.9.0, > >>> bluez > >>> 5.53, libftdi 1.4, librevisa 0.0.20130812. > >>> sr: [00:00.001479] backend: Host: x86_64-pc-linux-gnu, little-endian. > >>> sr: [00:00.001488] backend: SCPI backends: TCP, RPC, serial, VISA, > >>> USBTMC. > >>> sr: [00:00.001495] backend: Firmware search paths: > >>> sr: [00:00.001521] backend: - > >>> /tmp/.mount_sigrokaBeLBF/usr/share/sigrok- > >>> firmware > >>> sr: [00:00.001534] backend: - /home/rad/.local/share/sigrok-firmware > >>> sr: [00:00.001549] backend: - > >>> /__w/sigrok-build/sigrok-build/sr/share/sigrok- > >>> firmware > >>> sr: [00:00.001558] backend: - > >>> /home/rad/.local/share/flatpak/exports/share/ > >>> sigrok-firmware > >>> sr: [00:00.001566] backend: - > >>> /var/lib/flatpak/exports/share/sigrok-firmware > >>> sr: [00:00.001579] backend: - /usr/local/share/sigrok-firmware > >>> sr: [00:00.001589] backend: - /usr/share/sigrok-firmware > >>> sr: [00:00.002111] backend: Sanity-checking all drivers. > >>> sr: [00:00.002136] backend: Sanity-checking all input modules. > >>> sr: [00:00.002141] backend: Sanity-checking all output modules. > >>> sr: [00:00.002155] backend: Sanity-checking all transform modules. > >>> srd: libsigrokdecode loglevel set to 5. > >>> sr: [00:00.006477] kingst-la2016: USB enum found 77a1:01a2 at path > >>> usb/1-2, > >>> 1.24. > >>> sr: [00:00.006984] kingst-la2016: USB PID 01a2, MCU firmware 'kingst- > >>> la-01a2.fw'. > >>> sr: [00:00.008011] kingst-la2016: Manufacture date bytes 24 08 db f7. > >>> sr: [00:00.008028] kingst-la2016: Manufacture date: 2024-08. > >>> sr: [00:00.009537] kingst-la2016: EEPROM magic bytes 0c f3 00 00 0c f3 > >>> 10 ef. > >>> sr: [00:00.009554] kingst-la2016: Using secondary magic 0xc (0x10). > >>> sr: [00:00.009574] kingst-la2016: Model 'LA5016', 16 channels, max > >>> 500MHz. > >>> sr: [00:00.009593] kingst-la2016: FPGA bitstream file 'kingst-la5016a2- > >>> fpga.bitstream'. > >>> sr: [00:00.009603] kingst-la2016: Checking operation of the FPGA > >>> bitstream. > >>> sr: [00:00.011098] kingst-la2016: FPGA registers dump: bitstream check > >>> sr: [00:00.011114] kingst-la2016: 0000 ed 85 00 00 00 00 07 00 00 00 > >>> 00 00 > >>> 00 00 00 00 > >>> sr: [00:00.011127] kingst-la2016: 0010 e9 8d 5b 00 c7 c6 2d 00 50 f9 > >>> 24 01 > >>> 00 00 00 00 > >>> sr: [00:00.011146] kingst-la2016: 0020 00 00 00 00 00 00 00 00 00 00 > >>> 00 00 > >>> 00 00 00 00 > >>> sr: [00:00.011168] kingst-la2016: 0030 00 00 00 00 00 00 00 00 00 00 > >>> 00 00 > >>> 00 00 00 00 > >>> sr: [00:00.011189] kingst-la2016: 0040 00 00 00 00 00 00 00 00 00 00 > >>> 00 00 > >>> 00 00 00 00 > >>> sr: [00:00.011213] kingst-la2016: 0050 00 00 00 00 00 00 00 00 00 00 > >>> 00 00 > >>> 00 00 00 00 > >>> sr: [00:00.011239] kingst-la2016: 0060 00 00 00 00 00 00 00 00 00 00 > >>> 00 00 > >>> 00 00 00 00 > >>> sr: [00:00.011264] kingst-la2016: 0070 00 00 00 00 00 00 00 00 00 00 > >>> 00 00 > >>> 00 00 00 00 > >>> sr: [00:00.011458] kingst-la2016: FPGA register: run state 0x85ed. > >>> sr: [00:00.011564] kingst-la2016: FPGA register: PWM enable 0x00. > >>> sr: [00:00.011576] kingst-la2016: Could re-use current FPGA bitstream. > >>> No > >>> upload required. > >>> sr: [00:00.082222] kingst-la2016: Run state: 0x85ed (idle). > >>> sr: [00:00.082337] kingst-la2016: Device should be initialized. > >>> sr: [00:00.082455] hwdriver: Scan found 1 devices (kingst-la2016). > >>> sr: [00:00.082785] device: kingst-la2016: Opening device instance. > >>> sr: [00:00.082871] kingst-la2016: PWM config, app spec, ch 0, en 0, freq > >>> 1000.0, duty 50.0. > >>> sr: [00:00.082916] kingst-la2016: PWM config, reg 0x0070, freq 200000, > >>> duty > >>> 100000. > >>> sr: [00:00.082934] kingst-la2016: PWM config, enable all 0x00, cfg 0x01. > >>> sr: [00:00.082952] kingst-la2016: PWM config, disabling before param > >>> change. > >>> sr: [00:00.083097] kingst-la2016: PWM config, app spec, ch 1, en 0, freq > >>> 100000.0, duty 50.0. > >>> sr: [00:00.083118] kingst-la2016: PWM config, reg 0x0078, freq 2000, > >>> duty > >>> 1000. > >>> sr: [00:00.083134] kingst-la2016: PWM config, enable all 0x00, cfg 0x02. > >>> sr: [00:00.083149] kingst-la2016: PWM config, disabling before param > >>> change. > >>> sr: [00:00.083318] hwdriver: sr_config_set(): key 30000 (samplerate) sdi > >>> 0x55c4276db750 cg NULL -> uint64 500000000 > >>> sr: [00:00.083361] hwdriver: sr_config_list(): key 30014 (triggermatch) > >>> sdi > >>> 0x55c4276db750 cg NULL -> [1, 2, 3, 4] > >>> sr: [00:00.083402] hwdriver: sr_config_list(): key 50001 (limit_samples) > >>> sdi > >>> 0x55c4276db750 cg NULL -> (uint64 0, uint64 10000000000) > >>> sr: [00:00.083434] hwdriver: sr_config_set(): key 50001 (limit_samples) > >>> sdi > >>> 0x55c4276db750 cg NULL -> uint64 10000000 > >>> sr: [00:00.083477] session: Checking trigger: > >>> sr: [00:00.083489] session: Stage 0 match on channel CH0, match 3 > >>> sr: [00:00.083504] session: Stage 0 match on channel CH1, match 1 > >>> sr: [00:00.083519] session: Stage 0 match on channel CH2, match 1 > >>> sr: [00:00.083544] session: Using thread-default main context. > >>> sr: [00:00.083555] session: Starting. > >>> sr: [00:00.083568] hwdriver: kingst-la2016: Starting acquisition. > >>> sr: [00:00.083629] kingst-la2016: Set threshold voltage 1.40V. > >>> sr: [00:00.083644] kingst-la2016: Duty cycle values: R56 0x021f, R79 > >>> 0x00f2. > >>> sr: [00:00.083888] kingst-la2016: Set trigger config: enabled-channels > >>> 0x0007, > >>> triggering-channels 0x0007, level-triggered 0x0006, high/falling 0x0000. > >>> sr: [00:00.084155] kingst-la2016: Set sample config: 500000kHz (div 1), > >>> 10000000 samples. > >>> sr: [00:00.084169] kingst-la2016: Capture ratio 50%, count 5000000, mem > >>> 134217728. > >>> sr: [00:00.084636] session: bus: Received SR_DF_HEADER packet. > >>> cli: Received SR_DF_HEADER. > >>> sr: [00:00.084682] hwdriver: sr_config_get(): key 30000 (samplerate) sdi > >>> 0x55c4276db750 cg NULL -> uint64 500000000 > >>> sr: [00:00.171745] kingst-la2016: Acquisition completion seen > >>> (hardware). > >>> sr: [00:00.173252] kingst-la2016: FPGA registers dump: acquisition > >>> complete > >>> sr: [00:00.173276] kingst-la2016: 0000 ed 85 00 00 00 00 07 00 00 00 > >>> 00 00 > >>> 00 00 00 00 > >>> sr: [00:00.173301] kingst-la2016: 0010 1f 28 09 00 e1 93 04 00 30 4d > >>> 1d 00 > >>> 00 00 00 00 > >>> sr: [00:00.173325] kingst-la2016: 0020 00 00 00 00 00 00 00 00 00 00 > >>> 00 00 > >>> 00 00 00 00 > >>> sr: [00:00.173348] kingst-la2016: 0030 00 00 00 00 00 00 00 00 00 00 > >>> 00 00 > >>> 00 00 00 00 > >>> sr: [00:00.173372] kingst-la2016: 0040 00 00 00 00 00 00 00 00 00 00 > >>> 00 00 > >>> 00 00 00 00 > >>> sr: [00:00.173404] kingst-la2016: 0050 00 00 00 00 00 00 00 00 00 00 > >>> 00 00 > >>> 00 00 00 00 > >>> sr: [00:00.173426] kingst-la2016: 0060 00 00 00 00 00 00 00 00 00 00 > >>> 00 00 > >>> 00 00 00 00 > >>> sr: [00:00.173447] kingst-la2016: 0070 00 00 00 00 00 00 00 00 00 00 > >>> 00 00 > >>> 00 00 00 00 > >>> sr: [00:00.173462] session: bus: Received SR_DF_FRAME_BEGIN packet. > >>> cli: Received SR_DF_FRAME_BEGIN. > >>> sr: [00:00.173873] kingst-la2016: Capture info: n_rep_packets: > >>> 0x0009281f/ > >>> 600095, before_trigger: 0x000493e1/300001, write_pos: > >>> 0x001d4d30/1920304. > >>> sr: [00:00.173897] kingst-la2016: Want to read 120019 xfer-packets > >>> starting > >>> from pos 0. > >>> sr: [00:00.173984] kingst-la2016: Will read from 0x00000000, 0x001d4d30 > >>> bytes. > >>> sr: [00:00.174964] kingst-la2016: Acquisition data download started. > >>> sr: [00:00.188764] kingst-la2016: receive_transfer(): status > >>> LIBUSB_SUCCESS / > >>> LIBUSB_TRANSFER_COMPLETED received 524288 bytes. > >>> sr: [00:00.224622] kingst-la2016: 1396016 more bytes to download from > >>> the > >>> device. > >>> sr: [00:00.224648] kingst-la2016: Total samples after chunk: 2730633. > >>> sr: [00:00.225892] kingst-la2016: receive_transfer(): status > >>> LIBUSB_SUCCESS / > >>> LIBUSB_TRANSFER_COMPLETED received 524288 bytes. > >>> sr: [00:00.242821] session: bus: Received SR_DF_LOGIC packet (8388608 > >>> bytes, > >>> unitsize = 2). > >>> cli: Received SR_DF_LOGIC (8388608 bytes, unitsize = 2). > >>> sr: [00:00.269931] session: bus: Received SR_DF_LOGIC packet (1611430 > >>> bytes, > >>> unitsize = 2). > >>> cli: Received SR_DF_LOGIC (1611430 bytes, unitsize = 2). > >>> sr: [00:00.273715] session: bus: Received SR_DF_TRIGGER packet. > >>> cli: Received SR_DF_TRIGGER. > >>> sr: [00:00.273755] kingst-la2016: Trigger position after 5000019 > >>> samples, > >>> 10.000038ms. > >>> sr: [00:00.280391] kingst-la2016: 871728 more bytes to download from the > >>> device. > >>> sr: [00:00.280425] kingst-la2016: Total samples after chunk: 5461322. > >>> sr: [00:00.281429] kingst-la2016: receive_transfer(): status > >>> LIBUSB_SUCCESS / > >>> LIBUSB_TRANSFER_COMPLETED received 524288 bytes. > >>> sr: [00:00.304977] kingst-la2016: 347440 more bytes to download from the > >>> device. > >>> sr: [00:00.305014] kingst-la2016: Total samples after chunk: 8191930. > >>> sr: [00:00.305414] kingst-la2016: receive_transfer(): status > >>> LIBUSB_SUCCESS / > >>> LIBUSB_TRANSFER_COMPLETED received 347440 bytes. > >>> sr: [00:00.314484] session: bus: Received SR_DF_LOGIC packet (8388608 > >>> bytes, > >>> unitsize = 2). > >>> cli: Received SR_DF_LOGIC (8388608 bytes, unitsize = 2). > >>> sr: [00:00.340218] kingst-la2016: Download finished, flushing session > >>> feed > >>> queue. > >>> sr: [00:00.340246] session: bus: Received SR_DF_LOGIC packet (1614402 > >>> bytes, > >>> unitsize = 2). > >>> cli: Received SR_DF_LOGIC (1614402 bytes, unitsize = 2). > >>> sr: [00:00.342387] kingst-la2016: Total samples after chunk: 10001524. > >>> sr: [00:00.342422] kingst-la2016: Download finished, post processing. > >>> sr: [00:00.343317] kingst-la2016: receive_transfer(): status > >>> LIBUSB_TRANSFER_CANCELLED received 0 bytes. > >>> sr: [00:00.344157] kingst-la2016: receive_transfer(): status > >>> LIBUSB_TRANSFER_CANCELLED received 0 bytes. > >>> sr: [00:00.344240] kingst-la2016: receive_transfer(): status > >>> LIBUSB_TRANSFER_CANCELLED received 0 bytes. > >>> sr: [00:00.344304] kingst-la2016: receive_transfer(): status > >>> LIBUSB_TRANSFER_CANCELLED received 0 bytes. > >>> sr: [00:00.344360] kingst-la2016: receive_transfer(): status > >>> LIBUSB_TRANSFER_CANCELLED received 0 bytes. > >>> sr: [00:00.344409] kingst-la2016: receive_transfer(): status > >>> LIBUSB_TRANSFER_CANCELLED received 0 bytes. > >>> sr: [00:00.344463] kingst-la2016: receive_transfer(): status > >>> LIBUSB_TRANSFER_CANCELLED received 0 bytes. > >>> sr: [00:00.345475] session: bus: Received SR_DF_FRAME_END packet. > >>> cli: Received SR_DF_FRAME_END. > >>> sr: [00:00.345538] session: bus: Received SR_DF_END packet. > >>> cli: Received SR_DF_END. > >>> Device only sent 5001505 samples. > >>> sr: [00:00.349949] kingst-la2016: Download finished, done post > >>> processing. > >>> sr: [00:00.349987] usb: usb_source_finalize > >>> sr: [00:00.350061] session: Stopped. > >>> sr: [00:00.350096] hwdriver: Cleaning up all drivers. > >>> sr: [00:00.350413] kingst-la2016: Closing device on 1.24 (logical) / > >>> usb/1-2 > >>> (physical) interface 0. > >>> _______________________________________________ > >>> sigrok-devel mailing list > >>> [email protected] > >>> https://lists.sourceforge.net/lists/listinfo/sigrok-devel
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