Hello Stefan, thanks for your quick reply.
On Tue, Dec 18, 2018 at 06:38:19PM +0100, Stefan Brüns wrote: > On Dienstag, 18. Dezember 2018 17:32:49 CET Alexander Dahl wrote: > > The scope itself is currently not supported by sigrok, but some older > > model is: https://sigrok.org/wiki/GW_Instek_GDS-800_series > > > > The GDS-1000 Series seems to use the same serial protocol over USB, > > but I can not just give sigrok the path to the device /dev/ttyACM0 and > > it just works, that's not the case. :-/ > > The driver checks the response of the standard SCPI command "*IDN?". The > device response is split into a manufacturer and device/model part, and then > compared with expected values. > > See src/hardware/gwinstek-gds-800/api.c, lines 51ff in libsigrok. > > Currently, it expects the manufacturer to be "GW" and the model name to start > with "GDS-8". You have to extend this part to support both device series. Yes it does, here's what I get when calling sigrok-cli, so at least sigrok sends that *idn? command: % sigrok-cli -l 5 --driver gwinstek-gds-800:conn=/dev/ttyACM0 --show sr: [00:00.000001] log: libsigrok loglevel set to 5. sr: [00:00.000030] backend: libsigrok 0.6.0-git-28877994/4:0:0 (rt: 0.6.0-git-28877994/4:0:0). sr: [00:00.000075] backend: Libs: glib 2.50.3 (rt: 2.50.3/5003:3), libzip 1.1.2, libserialport 0.1.1/1:0:1 (rt: 0.1.1/1:0:1), libusb-1.0 1.0.21.11156 API 0x01000105, libftdi 1.3. sr: [00:00.000080] backend: Host: x86_64-pc-linux-gnu, little-endian. sr: [00:00.000087] backend: SCPI backends: TCP, RPC, serial, USBTMC. sr: [00:00.000102] backend: Firmware search paths: sr: [00:00.000116] backend: - /home/adahl/.local/share/sigrok-firmware sr: [00:00.000119] backend: - /usr/local/share/sigrok-firmware sr: [00:00.000122] backend: - /usr/share/sigrok-firmware sr: [00:00.000125] backend: - /usr/share/sigrok-firmware sr: [00:00.000129] backend: - /usr/local/share/sigrok-firmware sr: [00:00.000143] backend: Sanity-checking all drivers. sr: [00:00.000149] backend: Sanity-checking all input modules. sr: [00:00.000154] backend: Sanity-checking all output modules. sr: [00:00.000158] backend: Sanity-checking all transform modules. srd: libsigrokdecode loglevel set to 5. Driver functions: Oscilloscope sr: [00:00.002698] hwdriver: sr_config_list(): key 2147418112 (NULL) sdi (nil) cg NULL -> [uint32 20000, 20001] Scan options: conn serialcomm sr: [00:00.002734] hwdriver: sr_config_list(): key 2147418112 (NULL) sdi (nil) cg NULL -> [uint32 20000, 20001] sr: [00:00.002744] scpi: Opening serial device /dev/ttyACM0. sr: [00:00.002752] serial: Opening serial port '/dev/ttyACM0' (flags 1). sr: [00:00.008035] serial: Flushing serial port /dev/ttyACM0. sr: [00:00.008063] serial: Wrote 6/6 bytes. sr: [00:00.008068] scpi_serial: Successfully sent SCPI command: '*IDN?'. sr: [00:00.048255] serial: Read 28/2048 bytes. sr: [00:00.048281] scpi_serial: Received terminator sr: [00:00.048289] scpi: Got response: 'GW,GDS-1102A,EK142755,V1.10', length 27. sr: [00:00.048319] serial: Closing serial port /dev/ttyACM0. sr: [00:00.068746] hwdriver: Scan found 0 devices (gwinstek-gds-800). No devices found. > Also, it might be necessary to extend the driver to support There's a different programming manual for the GDS1000A: https://gwinstek.com/en-global/products/downloadSeriesDownNew/11980/1030 The command set seems to be different, so it's maybe not that simple? > > I could hardcopy a measurement to SD card however, which gives me one > > CSV file per channel with analog values. According to libsigrok > > master, analog input from CSV is still an open TODO: "Add support for > > analog input data? (optional)". > > Does it support exporting the data as binary? If yes, libsigrok can read > analog data in raw binary format. I don't think so. :-/ > Adding analog support to the CSV importer would be very very welcome, > although > this is likely a quite large and orthogonal task. Yeah I got some hints on that in IRC, but I guess that's something which could be done by more than the person with a certain device, those CVS files could easily be shared. Maybe I find some spare time in the next days. Greets Alex -- /"\ ASCII RIBBON | »With the first link, the chain is forged. The first \ / CAMPAIGN | speech censured, the first thought forbidden, the X AGAINST | first freedom denied, chains us all irrevocably.« e \ HTML MAIL | (Jean-Luc Picard, quoting Judge Aaron Satie)
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