Please suggest a good cheap USB 16CH logic analyser

[rsjsouza]

I can't quite see the markings on my photo so I'll pop the case off and report back once I've drank more coffee :-)

I read "AVF", which corresponds to the op amp: TLV272. The network of resistors and capacitors seem to agree with that.

[picitup]

Thanks for that @rsjsouza

The markings are TI 7B AVF as you say so that ties up with it being a TI part.  I couldn't find it anywhere.  So that still leaves no obvious clock for the FPGA.  I could maybe add some capacitance to the xtal and see if it puts the measurement out.  The TI site identifies the AVF marking with the TLV272CDGK part here:

https://www.ti.com/store/ti/en/p/product/?p=TLV272CDGK

Hmmm....

[picitup]

Hi again

I've spent a bit of time identifying the chips and have updated the chip markings on the piccy of the board. 

Here's what I've come up with so far:

U1 - Altera Cyclone IV FPGA
https://www.intel.com/content/dam/www/programmable/us/en/pdfs/literature/hb/cyclone-iv/cyiv-53001.pdf

U2, U4, U5, U7 - V05
SRV05-4 ESD Protection Diode Array
https://www.onsemi.com/pub/Collateral/SRV05-4-D.PDF

U3 - CY7C68013A
Cypress USB Microcontroller High-Speed USB Peripheral Controller
https://www.cypress.com/file/138911/download

U6, U8 - YJAA
SGM2019A - Low Power, Low Dropout, 250mA,  RF-Linear  Regulators
http://www.wandec.com/upfile/SGM2019.pdf 

U9 - 24C02N
IIC-Compatible (2-wire) Serial EEPROM 2Mbit
https://www.mouser.co.uk/datasheet/2/268/Atmel-8828-SEEPROM-AT24CM02-Datasheet-1398087.pdf

U10 - IC
??

U11, U12 - K4T1G1604G
1 Gbit DDR RAM
https://www.samsung.com/semiconductor/global.semi/file/resource/2017/11/DS_K4T1G08_16_4QJ-B_Rev1_0-1.pdf

U13, U16 - SC2HF
SGM6013 1.6MHz, 600mA Synchronous Step-Down Converter
http://www.datasheet-pdf.com/mobile/1301564/SGM6013.html

U14 - TI 7B AVF
TLV272CDGK - Dual 16V, 3MHz, 550-uA/ch, rail-to-rail output op amp
https://www.ti.com/store/ti/en/p/product/?p=TLV272CDGK
 
U15 - PFNI
TPS60403 - 60mA Charge Pump Voltage Inverter with Fixed 250kHz Operation
http://www.ti.com/lit/ds/symlink/tps60403.pdf

So that's all of them apart from U10 which is just marked IC and I can't find that one for some reason!

[Daixiwen]

U10 is probably an SPI flash to configure the FPGA, such as an Intel/Altera EPCS16 or a Micron MT25Q

[picitup]

Yes, I think you're right.  The track and resistor to the LED threw me a bit, but this actually goes to the FPGA, not U10.

So back to the start, I'm guessing the FPGA is clocked by the Cypress XTAL.

I wonder...... The Cypress data sheet says XTALIN can be either an XTAL or 3.3v square wave.  Does anyone know if this is an automatic switchover, or would it require the pin reconfguiring through firmware?

Hm.....

[picitup]

I've joined the Cypress forum to try and get an answer on XTALIN, but it seems pretty quiet over there.  I'm away for a week now so see how it goes:

https://community.cypress.com/thread/50178

Chat soon.....

Steve

[picitup]

Hi All

Well a helpful person replied on the Cypress forum and confirmed that XTALIN will auto-switchover between a crystal and an oscillator input.  So in short, I can remove the xtal and caps and add a tcxo.  I've got my eye on a 589L240X2CAT at Mouser here:

https://www.mouser.co.uk/ProductDetail/CTS-Electronic-Components/589L240X2CAT?qs=sGAEpiMZZMt8oz%2FHeiymAMra1pTmE9sFQ2Dh%252BCLNKsLnN6X8Jb7f5g%3D%3D

It's 0.28ppm, 3.3v and 5x7mm so easy to solder.  The only gotcha is it's not stocked and has a 12 week lead time.

[evgen.05]

Hello! Could anyone make a dump from EEPROM from LA2016? I've got a LA1016, they are absolutley indentical at hardware.

[voodoobearhunter]

How is the LA5016? I'm looking to buy a cheapish logic analyser and am torn between the LA5016 and the Dslogic Plus.

[PRL519]

Hey picitup, if you’re still out there…

Any update on your LA5016 analysis?  Last posts showed you checking to confirm that the onboard memory was working (that USB speed to PC didn’t matter).  Did you finish your analysis?

I’m looking at the LA5016 and LA5032 for my latest project (building a Z80 out of discrete components). Max clock is only 5 MHz, so the LA’s should work fine.

Not a lot of useful LA50xx reviews out there.

Thanks.

[NivagSwerdna]

Resurrecting thread...

Now in 2024.... I'm looking for a cheap LA that can capture at least 20ms worth of at least 12 signals where the fastest one is a clock at approx 18MHz.

I see these LAnnnn things?  Would that be a good choice.

[rsjsouza]

My LA2016 is still working like a champ and is still fully supported by Kingst. Also, Sigrok started to support it, so I can definitely recommend it.

[voltsandjolts]

Hello! Could anyone make a dump from EEPROM from LA2016? I've got a LA1016, they are absolutley indentical at hardware.

This is an old post, but for the benefit of others, converting an LA1016 (100MHz) into the LA2016 (more expensive 200MHz model) would not be easy. There is an SO8 authentication chip on the board which is checked by the fpga and the kingst software. Loading the 200MHz fpga bitstream on the LA1016 doesn't work. See details on Sigrok wiki, schematic etc.

[ConraDonald]

I've just bougth a LA2016, but I can't make it work with PulseView in windows 11 or linux .
ANyone of you have advice to give me? Which driver have to used ?   I extract in linux the fw but there are several files and I don't really know which is the exact procedure to make it works within pulsview.
I've tryed to connect with native driver Kingst LA-2016 and also with fx2lawfw but with no success in both cases. I've put in the firmware directory all files extracted with pythons script but in windows and linux (ubuntu 22.04) it doesn't connect to the analyzer.
On the pcb of the La2016 is reported:  ver.3.2

[mwb1100]

You should let people know some precise details of what you have and are doing.  Posting the details using copy/paste when possible is best (only post a screenshot if text copy/paste won't do):

  - what version of sigrok?  ("sigrok-cli -V" output)
  - what instructions are you following (a URL for example)
  - exactly what directory did you put the firmware file(s); what are the names of the "several files"?
  - exactly what does sigrok say when it fails to connect to the device?  Adding the "--loglevel 5" option will provide more detail about what sigrok is trying to do.

Also, does the KingstVIS Virtual Instruments Studio software work?

[ConraDonald]

VER sigrok-cli 0.8.0-git-9d9f7b8
Libraries and features:
- libsigrok 0.6.0-git/4:0:0 (rt: 0.6.0-git-b503d24/4:0:0).

VER PULSEVIEW:
PulseView  0.5.0-git-9b8b734

Installation path used for .fw files on windows11 :   C:\Program Files\sigrok\PulseView\share\sigrok-firmware
files inserted (get via python script):
  5.350 kingst-la-01a1.fw
  5.430 kingst-la-01a2.fw
  5.697 kingst-la-01a3.fw
142.412 kingst-la-01a4.fw
  5.459 kingst-la-03a1.fw
124.412 kingst-la1010a0-fpga.bitstream
125.301 kingst-la1010a1-fpga.bitstream
342.524 kingst-la1010a2-fpga.bitstream
178.151 kingst-la1016-fpga.bitstream
178.379 kingst-la1016a1-fpga.bitstream
178.542 kingst-la2016-fpga.bitstream
178.362 kingst-la2016a1-fpga.bitstream
577.892 kingst-la2016a2-fpga.bitstream
181.322 kingst-la5016-fpga.bitstream
247.485 kingst-la5016a1-fpga.bitstream
593.076 kingst-la5016a2-fpga.bitstream
451.116 kingst-la5032a0-fpga.bitstream
127.244 kingst-ms6218-fpga.bitstream


Firmware search paths:
C:\Users\claud\AppData\Local\sigrok-firmware
C:\Program Files\sigrok\PulseView\share\sigrok-firmware

Protocol decoder search paths:
C:\Program Files\sigrok\PulseView\share\libsigrokdecode\decoders

the pulseview  interface recognize Kinst LA2016 device, but run button is grey and it doesn't react when I try to activate the record funcion.


Ouput of sigrok command : c:sigrok-cli --config samplerate=1M -d kingst-la2016 --continuous -l 5  -o test.txt -O csv --samples 100000

D:\temp>c:sigrok-cli --config samplerate=1M -d kingst-la2016 --continuous -l 5  -o test.txt -O csv --samples 100000
sr: [00:00.000000] log: libsigrok loglevel set to 5.
sr: [00:00.000000] backend: libsigrok 0.6.0-git-b503d24/4:0:0.
sr: [00:00.000000] backend: Libs: glib 2.44.1 (rt: 2.44.1/4401:1), zlib 1.2.11, libzip 1.5.2, minilzo 2.10, libserialport 0.1.1/1:0:1 (rt: 0.1.1/1:0:1), libusb-1.0 1.0.23.11470 API 0x01000108, hidapi 0.8.0-rc1, libftdi 1.4.
sr: [00:00.000000] backend: Host: x86_64-w64-mingw32.static.posix, little-endian.
sr: [00:00.000000] backend: SCPI backends: TCP, serial, USBTMC.
sr: [00:00.000000] backend: Firmware search paths:
sr: [00:00.017000] backend:  - C:\Users\claud\AppData\Local\sigrok-firmware
sr: [00:00.017000] backend:  - C:\ProgramData\sigrok-firmware
sr: [00:00.017000] backend:  - C:\Users\Public\Documents\sigrok-firmware
sr: [00:00.017000] backend:  - C:\Program Files\sigrok\sigrok-cli\share\sigrok-firmware
sr: [00:00.017000] backend:  - C:\Program Files\sigrok\sigrok-cli\share\sigrok-firmware
sr: [00:00.017000] backend: Sanity-checking all drivers.
sr: [00:00.017000] backend: Sanity-checking all input modules.
sr: [00:00.017000] backend: Sanity-checking all output modules.
sr: [00:00.017000] backend: Sanity-checking all transform modules.
srd: libsigrokdecode loglevel set to 5.
sr: [00:00.035000] kingst-la2016: USB enum found 77a1:01a2 at path usb/1-5, 1.5.
sr: [00:00.035000] kingst-la2016: USB PID 01a2, MCU firmware 'kingst-la-01a2.fw'.
sr: [00:00.037000] kingst-la2016: Manufacture date bytes 23 11 dc ee.
sr: [00:00.037000] kingst-la2016: Manufacture date: 2023-11.
sr: [00:00.039000] kingst-la2016: EEPROM magic bytes 0b f4 00 00 0b f4 10 ef.
sr: [00:00.039000] kingst-la2016: Using secondary magic 0xb (0x10).
sr: [00:00.039000] kingst-la2016: Model 'LA2016', 16 channels, max 200MHz.
sr: [00:00.039000] kingst-la2016: FPGA bitstream file 'kingst-la2016a2-fpga.bitstream'.
sr: [00:00.039000] kingst-la2016: Checking operation of the FPGA bitstream.
sr: [00:00.041000] kingst-la2016: FPGA registers dump: bitstream check
sr: [00:00.041000] kingst-la2016:   0000  ee 85 00 00 00 00 00 00  00 00 00 00 00 00 00 00
sr: [00:00.041000] kingst-la2016:   0010  57 0a 08 00 00 00 00 00  b0 ba 19 00 00 00 00 00
sr: [00:00.042000] kingst-la2016:   0020  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
sr: [00:00.042000] kingst-la2016:   0030  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
sr: [00:00.042000] kingst-la2016:   0040  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
sr: [00:00.042000] kingst-la2016:   0050  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
sr: [00:00.042000] kingst-la2016:   0060  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
sr: [00:00.042000] kingst-la2016:   0070  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
sr: [00:00.043000] kingst-la2016: FPGA register: run state 0x85ee.
sr: [00:00.043000] kingst-la2016: Unexpected FPGA register content (run state).
sr: [00:00.043000] kingst-la2016: Uploading FPGA bitstream 'kingst-la2016a2-fpga.bitstream'.
sr: [00:00.044000] resource: Attempt to open 'C:\Users\claud\AppData\Local\sigrok-firmware\kingst-la2016a2-fpga.bitstream' failed: No such file or directory
sr: [00:00.044000] resource: Attempt to open 'C:\ProgramData\sigrok-firmware\kingst-la2016a2-fpga.bitstream' failed: No such file or directory
sr: [00:00.044000] resource: Attempt to open 'C:\Users\Public\Documents\sigrok-firmware\kingst-la2016a2-fpga.bitstream' failed: No such file or directory
sr: [00:00.044000] resource: Opened 'C:\Program Files\sigrok\sigrok-cli\share\sigrok-firmware\kingst-la2016a2-fpga.bitstream'.
sr: [00:02.044000] kingst-la2016: FPGA bitstream upload (577892 bytes) done.
sr: [00:02.137000] kingst-la2016: Run state: 0x85e9 (idle).
sr: [00:02.138000] kingst-la2016: Device should be initialized.
sr: [00:02.138000] hwdriver: Scan found 1 devices (kingst-la2016).
sr: [00:02.138000] device: kingst-la2016: Opening device instance.
sr: [00:02.148000] kingst-la2016: PWM config, app spec, ch 0, en 0, freq 1000.0, duty 50.0.
sr: [00:02.149000] kingst-la2016: PWM config, reg 0x0070, freq 200000, duty 100000.
sr: [00:02.149000] kingst-la2016: PWM config, enable all 0x00, cfg 0x01.
sr: [00:02.149000] kingst-la2016: PWM config, disabling before param change.
sr: [00:02.150000] kingst-la2016: PWM config, app spec, ch 1, en 0, freq 100000.0, duty 50.0.
sr: [00:02.150000] kingst-la2016: PWM config, reg 0x0078, freq 2000, duty 1000.
sr: [00:02.150000] kingst-la2016: PWM config, enable all 0x00, cfg 0x02.
sr: [00:02.150000] kingst-la2016: PWM config, disabling before param change.
sr: [00:02.150000] hwdriver: sr_config_set(): key 30000 (samplerate) sdi 0000000001BAEE90 cg NULL -> uint64 1000000
sr: [00:02.151000] hwdriver: sr_config_list(): key 50001 (limit_samples) sdi 0000000001BAEE90 cg NULL -> (uint64 0, uint64 10000000000)
sr: [00:02.151000] hwdriver: sr_config_set(): key 50001 (limit_samples) sdi 0000000001BAEE90 cg NULL -> uint64 100000
sr: [00:02.151000] session: Using thread-default main context.
sr: [00:02.151000] session: Starting.
sr: [00:02.151000] hwdriver: kingst-la2016: Starting acquisition.
sr: [00:02.151000] kingst-la2016: Set threshold voltage 1.40V.
sr: [00:02.151000] kingst-la2016: Duty cycle values: R56 0x021f, R79 0x00f2.
sr: [00:02.153000] kingst-la2016: Set trigger config: enabled-channels 0xffff, triggering-channels 0x0000, level-triggered 0x0000, high/falling 0x0000.
sr: [00:02.154000] kingst-la2016: No trigger setup, skipping pre-trigger config.
sr: [00:02.155000] kingst-la2016: Set sample config: 1000kHz (div 200), 100000 samples.
sr: [00:02.155000] kingst-la2016: Capture ratio 50%, count 0, mem 256.
sr: [00:02.155000] usb: Failed to get libusb file descriptors.
sr: [00:02.155000] session: bus: Received SR_DF_HEADER packet.
cli: Received SR_DF_HEADER.
sr: [00:02.156000] hwdriver: sr_config_get(): key 30000 (samplerate) sdi 0000000001BAEE90 cg NULL -> uint64 1000000
sr: [00:02.156000] output/csv: gnuplot = '', scale = 1
sr: [00:02.156000] output/csv: value = ',', record = '', frame = '', comment = ';'
sr: [00:02.156000] output/csv: header = 1, time = 0, do_trigger = 0, dedup = 0
sr: [00:02.157000] output/csv: label_do = 1, label_names = 0
sr: [00:02.157000] output/csv: Outputting 16 logic values
sr: [00:02.157000] output/csv: Got packet of type 10000
sr: [00:02.157000] hwdriver: sr_config_get(): key 30000 (samplerate) sdi 0000000001BAEE90 cg NULL -> uint64 1000000
sr: [00:02.157000] output/csv: Set sample rate, scale to 1000000, 1000000 microseconds
Press any key to stop acquisition.
sr: [00:02.159000] session: Stopped.
sr: [00:02.159000] hwdriver: Cleaning up all drivers.
sr: [00:02.159000] kingst-la2016: Closing device on 1.5 (logical) / usb/1-5 (physical) interface 0.


it creates a csv file with header but no data:

; CSV generated by libsigrok 0.6.0-git-b503d24
; from Kingst LA2016 on Wed Feb 07 22:25:23 2024
; Channels (16/18): CH0, CH1, CH2, CH3, CH4, CH5, CH6, CH7, CH8, CH9, CH10, CH11, CH12, CH13, CH14, CH15
; Samplerate: 1 MHz


obvioulsly with the original software KingstVIS it works

[mwb1100]

Looks like sigrok isn't having any problem finding and opening the LA2016.  I can see you're using the nightly build; you might want to try the release build and see if you get better results:

Code: [Select]

C:\sigrok\sigrok-cli>sigrok-cli -V
sigrok-cli 0.7.2

Libraries and features:
- libsigrok 0.5.2/5:1:1 (rt: 0.5.2/5:1:1).

... (remaining output elided)

[ConraDonald]

in the version  sigrok 0.7.2
give me this output :  Driver kingst-la2016 not found.
I've also test with  fx2lafw with the results : No devices found.

[voltsandjolts]

I think the sigrok project is struggling for staff volunteers. The nightly builds weren't happening for a few weeks (months?). There's only one grumpy guy on the mailing list who has commit access and sometimes chimes in. He makes it hard to want to help TBH. There may be others able to assist on IRC but I get the impression there's not many developers interested these days.

I have built pulseview myself, it's a bit of a PITA doing the Windows build. And I'd have to distibute it under another name, only sigrok can publish "PulseView".

[ConraDonald]

Is there any other software besides the original one, that can decode a USB bus decently, with Kinst-LA2016 ?

[voltsandjolts]

The only software that works with LA2016 is the Kingst software or Pulseview, AFAIK.

For USB bus investigations consider:
https://www.eevblog.com/forum/projects/usb-sniffer-using-rp2040
https://www.eevblog.com/forum/projects/low-cost-lsfshs-usb-sniffer-with-wireshark-interface

[ConraDonald]

probably sigrok works correctly with older Hw version...