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1 | ------------------------------------------------------------------------------- |
2 | README.devices | |
3 | ------------------------------------------------------------------------------- | |
4 | ||
5 | This README contains various notes for users of libsigrok (or frontends | |
6 | that are based on libsigrok) about device- and/or driver-specific issues. | |
7 | ||
8 | ||
9 | Firmware | |
10 | -------- | |
11 | ||
12 | Some devices supported by libsigrok need a firmware to be uploaded every time | |
fadd0707 | 13 | the device is connected to the PC (usually via USB), before it can be used. |
c77ed446 | 14 | |
796f0e98 | 15 | The default locations where libsigrok expects the firmware files are: |
c77ed446 | 16 | |
1503d457 | 17 | $SIGROK_FIRMWARE_DIR (environment variable) |
796f0e98 | 18 | $HOME/.local/share/sigrok-firmware |
c77ed446 | 19 | $prefix/share/sigrok-firmware |
796f0e98 UH |
20 | /usr/local/share/sigrok-firmware |
21 | /usr/share/sigrok-firmware | |
c77ed446 UH |
22 | |
23 | ($prefix is usually /usr/local or /usr, depending on your ./configure options) | |
24 | ||
25 | For further information see the section below and also: | |
26 | ||
27 | http://sigrok.org/wiki/Firmware | |
28 | ||
29 | ||
30 | Per-driver firmware requirements | |
31 | -------------------------------- | |
32 | ||
33 | The following drivers/devices require a firmware upload upon connection: | |
34 | ||
35 | - asix-sigma: The ASIX SIGMA and SIGMA2 require various firmware files, | |
36 | depending on the settings used. These files are available from our | |
37 | 'sigrok-firmware' repository/project under a license which allows us | |
38 | to redistribute them. | |
39 | ||
40 | - fx2lafw: Logic analyzers based on the Cypress FX2(LP) chip need the | |
41 | firmware files from the 'sigrok-firmware-fx2lafw' repository/project. | |
e311f770 | 42 | The firmware is written from scratch and licensed under the GNU GPLv2+. |
c77ed446 | 43 | |
1d82f9ad UH |
44 | - hantek-6xxx: Certain oscilloscopes based on the Cypress FX2(LP) chip, such |
45 | as the Hantek 6022BE/6022BL, SainSmart DDS120, and Rocktech BM102, need the | |
796f0e98 UH |
46 | firmware files from the 'sigrok-firmware-fx2lafw' repository/project. |
47 | The firmware is written from scratch and licensed under the GNU GPLv2+. | |
48 | ||
c77ed446 UH |
49 | - hantek-dso: The Hantek DSO-2090 (and other supported models of the same |
50 | series of Hantek PC oscilloscopes) need firmware files. | |
51 | These can be extracted from the vendor's Windows drivers using a tool | |
52 | from our 'sigrok-util' repository/project. | |
53 | ||
796f0e98 UH |
54 | - lecroy-logicstudio: The LeCroy LogicStudio requires FPGA bitstream files. |
55 | These can be extracted from the vendor's Windows software using a tool | |
56 | from our 'sigrok-util' repository/project. | |
57 | Additionally, it requires a Cypress FX2 firmware. This can be extracted | |
58 | from the vendor's Windows software using another tool. Details: | |
59 | ||
60 | http://sigrok.org/wiki/LeCroy_LogicStudio#Firmware | |
61 | ||
1b142b78 UH |
62 | - saleae-logic16: The Saleae Logic16 needs a firmware file for the |
63 | Cypress FX2 chip in the device, as well as two FPGA bitstream files. | |
64 | These can be extracted from the vendor's Linux application using a tool | |
65 | from our 'sigrok-util' repository/project. | |
66 | ||
796f0e98 UH |
67 | - sysclk-lwla: |
68 | ||
69 | - The Sysclk LWLA1034 requires various bitstream files. | |
70 | These files are available from our 'sigrok-firmware' repository/project | |
71 | under a license which allows us to redistribute them. | |
72 | ||
73 | - The Sysclk LWLA1016 requires various bitstream files. | |
74 | These can be extracted from the vendor's Windows drivers using a tool | |
75 | from our 'sigrok-util' repository/project. | |
e311f770 | 76 | |
c77ed446 UH |
77 | The following drivers/devices do not need any firmware upload: |
78 | ||
79 | - agilent-dmm | |
1267f128 | 80 | - appa-55ii |
796f0e98 | 81 | - arachnid-labs-re-load-pro |
e311f770 | 82 | - atten-pps3xxx |
796f0e98 UH |
83 | - baylibre-acme |
84 | - beaglelogic | |
ecaa89af | 85 | - brymen-bm86x |
c77ed446 | 86 | - brymen-dmm |
45bb47a7 | 87 | - cem-dt-885x |
1267f128 | 88 | - center-3xx (including all subdrivers) |
7b356712 | 89 | - chronovu-la |
c77ed446 | 90 | - colead-slm |
e311f770 | 91 | - conrad-digi-35-cpu |
c77ed446 UH |
92 | - demo |
93 | - fluke-dmm | |
796f0e98 | 94 | - ftdi-la |
e311f770 | 95 | - gmc-mh-1x-2x (including all subdrivers) |
796f0e98 | 96 | - gwinstek-gds-800 |
1267f128 | 97 | - hameg-hmo |
796f0e98 UH |
98 | - hp-3457a |
99 | - hung-chang-dso-2100 | |
45bb47a7 | 100 | - ikalogic-scanalogic2 |
6cda4600 UH |
101 | - ikalogic-scanaplus |
102 | - kecheng-kc-330b | |
796f0e98 | 103 | - kern-scale |
c77ed446 | 104 | - lascar-el-usb |
7ab89f48 | 105 | - link-mso19 |
796f0e98 UH |
106 | - manson-hcs-3xxx |
107 | - maynuo-m97 | |
1267f128 | 108 | - mic-985xx (including all subdrivers) |
796f0e98 | 109 | - motech-lps-30x |
5fa12e93 | 110 | - norma-dmm |
c77ed446 | 111 | - openbench-logic-sniffer |
796f0e98 | 112 | - pce-322a |
4bd80e12 | 113 | - pipistrello-ols |
3086efdd | 114 | - rigol-ds |
796f0e98 | 115 | - scpi-pps |
1267f128 | 116 | - serial-dmm (including all subdrivers) |
f05903eb | 117 | - serial-lcr (including all subdrivers) |
563c2463 | 118 | - siglent-sds |
5fa12e93 | 119 | - teleinfo |
796f0e98 | 120 | - testo |
c77ed446 | 121 | - tondaj-sl-814 |
1267f128 | 122 | - uni-t-dmm (including all subdrivers) |
1b142b78 | 123 | - uni-t-ut32x |
c77ed446 | 124 | - victor-dmm |
10763937 | 125 | - yokogawa-dlm |
c77ed446 UH |
126 | - zeroplus-logic-cube |
127 | ||
128 | ||
129 | Specifying serial ports | |
130 | ----------------------- | |
131 | ||
132 | Many devices supported by libsigrok use serial port based cables (real RS232 | |
f736691d GS |
133 | or USB-to-serial ones, CDC class) to connect to a PC. These serial cables are |
134 | supported by the libserialport library. Some vendors prefer to use HID chips | |
135 | instead of CDC chips in their serial cables. These cables can get supported | |
136 | by means of the hidapi library. Note that each chip type requires specific | |
07e42cb2 GS |
137 | support in the libsigrok library. Bluetooth connected devices may be supported |
138 | as well when they communicate by means of RFCOMM channels, or one of the | |
139 | implemented BLE notification/indication approaches, and one of the Bluetooth | |
140 | supporting platforms is used. | |
c77ed446 UH |
141 | |
142 | For all these devices, you need to specify the serial port they are connected | |
143 | to (e.g. using the 'conn' option in sigrok-cli). It is not possible to scan | |
144 | for such devices without specifying a serial port. | |
145 | ||
146 | Example: | |
147 | ||
148 | $ sigrok-cli --driver <somedriver>:conn=/dev/ttyUSB0 ... | |
f736691d | 149 | $ sigrok-cli --driver <somedriver>:conn=hid/cp2110 ... |
07e42cb2 | 150 | $ sigrok-cli --driver <somedriver>:conn=bt/rfcomm/01-23-45-67-89-ab ... |
c77ed446 | 151 | |
e2a391aa GS |
152 | Formal syntax for serial communication: |
153 | ||
154 | - COM ports (RS232, USB CDC): | |
155 | conn=<com-port> | |
156 | - USB HID cables: | |
157 | conn=hid[/<chip>] | |
158 | conn=hid[/<chip>]/usb=<bus>.<dev>[.<if>] | |
159 | conn=hid[/<chip>]/raw=<path> | |
160 | conn=hid[/<chip>]/sn=<serno> | |
161 | chip can be: ch9325, cp2110 | |
162 | path may contain slashes | |
163 | path and serno are "greedy" (span to the end of the spec) | |
164 | - Bluetooth Classic and Bluetooth Low Energy (BLE): | |
165 | conn=bt/<conn>/<addr> | |
166 | conn can be: rfcomm, ble122, nrf51, cc254x | |
167 | addr can be "dense" or separated, bt/cc254x/0123456789ab or | |
168 | bt/rfcomm/11-22-33-44-55-66 or bt/ble122/88:6b:12:34:56:78 | |
169 | (note that colons may not be available when the conn= spec is taken | |
170 | from a string that separates fields by colon, e.g. in the "--driver | |
171 | <name>:conn=<spec>" example, that is why the dense form and the use | |
172 | of dashes for separation are supported) | |
173 | ||
ca25a3ee | 174 | The following drivers/devices require a serial port specification. Some of |
de805ae5 GS |
175 | the drivers implement a default for the connection. Some of the drivers |
176 | can auto-detect USB connected devices. | |
c77ed446 UH |
177 | |
178 | - agilent-dmm | |
1267f128 | 179 | - appa-55ii |
e311f770 | 180 | - atten-pps3xxx |
c77ed446 | 181 | - brymen-dmm |
45bb47a7 | 182 | - cem-dt-885x |
1267f128 | 183 | - center-3xx (including all subdrivers) |
c77ed446 | 184 | - colead-slm |
e311f770 | 185 | - conrad-digi-35-cpu |
c77ed446 | 186 | - fluke-dmm |
e311f770 | 187 | - gmc-mh-1x-2x (including all subdrivers) |
1267f128 | 188 | - hameg-hmo |
7ab89f48 | 189 | - link-mso19 |
1267f128 | 190 | - mic-985xx (including all subdrivers) |
5fa12e93 | 191 | - norma-dmm |
c77ed446 | 192 | - openbench-logic-sniffer |
1267f128 UH |
193 | - rigol-ds (for RS232; not required for USBTMC or TCP) |
194 | - serial-dmm (including all subdrivers) | |
f05903eb | 195 | - serial-lcr (including all subdrivers) |
5fa12e93 | 196 | - teleinfo |
c77ed446 | 197 | - tondaj-sl-814 |
0ec42cbd GS |
198 | - uni-t-dmm (all -ser subdrivers) |
199 | - uni-t-ut32x | |
c77ed446 UH |
200 | |
201 | The following drivers/devices do not require a serial port specification: | |
202 | ||
c77ed446 | 203 | - asix-sigma |
ecaa89af | 204 | - brymen-bm86x |
7b356712 | 205 | - chronovu-la |
c77ed446 UH |
206 | - demo |
207 | - fx2lafw | |
208 | - hantek-dso | |
45bb47a7 | 209 | - ikalogic-scanalogic2 |
6cda4600 UH |
210 | - ikalogic-scanaplus |
211 | - kecheng-kc-330b | |
c77ed446 | 212 | - lascar-el-usb |
4bd80e12 | 213 | - pipistrello-ols |
1267f128 | 214 | - rigol-ds (USBTMC or TCP) |
1b142b78 | 215 | - saleae-logic16 |
e311f770 | 216 | - sysclk-lwla |
0ec42cbd | 217 | - uni-t-dmm (all non -ser subdrivers) |
10763937 | 218 | - yokogawa-dlm (USBTMC or TCP) |
c77ed446 UH |
219 | - zeroplus-logic-cube |
220 | ||
e2a391aa | 221 | Beyond strict serial communication over COM ports (discussed above), the |
ca25a3ee GS |
222 | conn= property can also address specific USB devices, as well as specify TCP |
223 | or VXI communication parameters. See these examples: | |
224 | ||
225 | $ sigrok-cli --driver <somedriver>:conn=<vid>.<pid> ... | |
226 | $ sigrok-cli --driver <somedriver>:conn=tcp-raw/<ipaddr>/<port> ... | |
227 | $ sigrok-cli --driver <somedriver>:conn=vxi/<ipaddr> ... | |
88c03eae | 228 | $ sigrok-cli --driver <somedriver>:conn=usbtmc/<bus>.<addr> ... |
ca25a3ee GS |
229 | |
230 | The following drivers/devices accept network communication parameters: | |
231 | ||
232 | - hameg-hmo | |
233 | - rigol-ds | |
de805ae5 | 234 | - scpi-dmm |
563c2463 | 235 | - siglent-sds |
ca25a3ee GS |
236 | - yokogawa-dlm |
237 | ||
c77ed446 | 238 | |
f3f19d11 UH |
239 | Specifying serial port parameters |
240 | --------------------------------- | |
48d3238e MH |
241 | |
242 | Every serial device's driver has default serial port parameters like baud | |
243 | rate, number of data bits, stop bits and handshake status. If a device requires | |
244 | different parameters, pass them as option "serialcomm" with the driver name. | |
e311f770 | 245 | See libsigrok docs for the function serial_set_paramstr() for complete specs. |
48d3238e MH |
246 | |
247 | Example: | |
248 | ||
249 | $ sigrok-cli --driver <somedriver>:conn=<someconn>:serialcomm=9600/7n1/dtr=1 | |
250 | ||
251 | ||
c77ed446 UH |
252 | Permissions of serial port based devices |
253 | ---------------------------------------- | |
254 | ||
255 | When using devices supported by libsigrok that use serial port based cables | |
256 | (real RS232 or USB-to-serial ones) to connect to a PC, you need to ensure | |
257 | that the user running the libsigrok frontend has (read/write) permissions to | |
258 | access the serial port device (e.g. /dev/ttyS0, /dev/ttyUSB0, and so on). | |
259 | ||
260 | You can use 'chmod' to apply permissions as you see fit, and/or 'chown' to | |
261 | change the owner of the serial port device to a certain user or group. | |
262 | ||
263 | For USB-to-serial based devices, we recommended using our udev rules file | |
264 | (see below for details). | |
265 | ||
266 | ||
75696630 SB |
267 | Permissions for USB devices (udev rules files) |
268 | ---------------------------------------------- | |
c77ed446 UH |
269 | |
270 | When using USB-based devices supported by libsigrok, the user running the | |
271 | libsigrok frontend (e.g. sigrok-cli) has to have (read/write) permissions | |
272 | for the respective USB device. | |
273 | ||
75696630 SB |
274 | On Linux, this is accomplished using udev rules. libsigrok ships a rules |
275 | file containing all supported devices which can be detected reliably | |
276 | (generic USB-to-serial converters are omitted, as these are used for a wide | |
277 | range of devices, e.g. GPS receivers, which are not handled by libsigrok). | |
c77ed446 | 278 | |
75696630 SB |
279 | The file is available in contrib/60-libsigrok.rules. This file just contains |
280 | the list of devices and flags these devices with ID_SIGROK="1". Access is | |
281 | granted by the 61-libsigrok-plugdev.rules or 61-libsigrok-uaccess.rules files, | |
282 | allowing access to members of the plugdev group or to currently logged in | |
283 | users, respectively. | |
c77ed446 UH |
284 | |
285 | When using a libsigrok package from your favorite Linux distribution, the | |
75696630 SB |
286 | files should already be installed in /usr/lib/udev/rules.d/, i.e. |
287 | 60-libsigrok.rules and one of the access granting rules files. Use of | |
288 | 61-libsigrok-uaccess.rules is encouraged on systemd distributions. | |
289 | ||
290 | The access policy can be locally overridden by placing appropriate rules in | |
291 | /etc/udev/rules.d/, disabling or ammending the default policy. See the | |
292 | udev documentation, e.g. man 7 udev, for details. | |
c77ed446 UH |
293 | |
294 | If you're building from source, you need to copy the file to the place | |
75696630 SB |
295 | where udev will read these rules. Local rules should go to /etc/udev/rules.d. |
296 | Keep the file naming, otherwise interaction between the libsigrok rules and | |
297 | rules shipped by the system will be broken. | |
c77ed446 | 298 | |
75696630 | 299 | Please consult the udev docs for details. |
c77ed446 UH |
300 | |
301 | ||
302 | Cypress FX2 based devices | |
303 | ------------------------- | |
304 | ||
305 | Devices using the Cypress FX2(LP) chip without any specific USB VID/PID will | |
306 | be enumerated with VID/PID 04b4:8613 (the default for "unconfigured FX2"). | |
307 | These are usually "FX2 eval boards" (that can also be used as LAs, though). | |
308 | ||
309 | On Linux, the 'usbtest' driver will usually grab such devices, and they will | |
310 | thus not be usable by libsigrok (and frontends). | |
311 | ||
312 | You can fix this by running 'rmmod usbtest' as root before using the device. | |
313 | ||
314 | ||
315 | UNI-T DMM (and rebranded models) cables | |
316 | --------------------------------------- | |
317 | ||
318 | UNI-T multimeters (and rebranded devices, e.g. some Voltcraft models) can | |
319 | ship with different PC connectivity cables: | |
320 | ||
de805ae5 | 321 | - UT-D02 (RS232 cable) |
c77ed446 UH |
322 | - UT-D04 (USB/HID cable with Hoitek HE2325U chip, USB VID/PID 04fa:2490) |
323 | - UT-D04 (USB/HID cable with WCH CH9325 chip, USB VID/PID 1a86:e008) | |
07e42cb2 | 324 | - UT-D07 (Bluetooth adapter, ISSC BL79 BLETR chip) |
f736691d | 325 | - UT-D09 (USB/HID cable with SiL CP2110 chip, USB VID/PID 10c4:ea80) |
c77ed446 UH |
326 | |
327 | The above cables are all physically compatible (same IR connector shape) | |
328 | with all/most currently known UNI-T multimeters. For example, you can | |
329 | use either of the UT-D04 USB/HID cables or the UT-D02 RS232 cable with | |
330 | the UNI-T UT61D multimeter. | |
331 | ||
332 | When using the UT-D02 RS232 cable with any of the supported UNI-T DMMs, | |
333 | you have to use the respective driver with a '-ser' drivername suffix | |
334 | (internally all of these models are handled by the 'serial-dmm' driver). | |
335 | ||
336 | You also need to specify the serial port via the 'conn' option, e.g. | |
337 | /dev/ttyUSB0 (attached via a USB-to-serial cable) or /dev/ttyS0 (actual | |
338 | RS232 port) on Linux (see above). | |
339 | ||
340 | Finally, the user running the frontend (e.g. sigrok-cli) also needs | |
341 | permissions to access the respective serial port (see above). | |
342 | ||
343 | Examples (sigrok-cli): | |
344 | ||
345 | $ sigrok-cli --driver uni-t-ut61e-ser:conn=/dev/ttyUSB0 ... | |
346 | $ sigrok-cli --driver voltcraft-vc820-ser:conn=/dev/ttyS0 ... | |
347 | ||
348 | When using any of the UT-D04 USB/HID cables you have to use the respective | |
349 | driver _without_ the '-ser' drivername suffix (internally all of these models | |
350 | are handled by the 'uni-t-dmm' driver). | |
351 | ||
9b2f03bb UH |
352 | You also need to specify the USB vendor/device IDs of the cable. |
353 | Autodetection is not possible here, since various other products use the | |
354 | USB VID/PID of those cables too, and there is no way to distinguish them. | |
355 | ||
c77ed446 UH |
356 | Since the UT-D04 cables are USB based (but don't use a USB-to-serial chip) |
357 | there is no need to specify a serial port via 'conn', of course. | |
358 | However, the user running the frontend does also need to have permissions | |
359 | to access the respective USB device (see above). | |
360 | ||
361 | Examples (sigrok-cli): | |
362 | ||
9b2f03bb UH |
363 | $ sigrok-cli --driver uni-t-ut61e:conn=1a86.e008 ... |
364 | $ sigrok-cli --driver voltcraft-vc820:conn=04fa.2490 ... | |
c77ed446 UH |
365 | |
366 | ||
367 | UNI-T UT-D04 cable issue on Linux | |
368 | --------------------------------- | |
369 | ||
370 | The UNI-T UT-D04 cable with Hoitek HE2325U (or WCH CH9325) chip seems to have | |
8d3764aa | 371 | a very specific problem on Linux. Apparently it requires to be put into |
c77ed446 UH |
372 | suspend (and woken up again) before it is usable. This seems to be a |
373 | Linux-only issue, Windows is not affected by this since apparently the | |
374 | Windows kernel does this for every USB device, always. | |
375 | ||
376 | Thus, if you want to use any of the UNI-T DMMs with this specific cable, | |
377 | you'll have to run the following script (as root) once, every time you attach | |
378 | the cable via USB. The script was written by Ralf Burger. | |
379 | ||
380 | See also: http://erste.de/UT61/index.html | |
381 | ||
382 | #!/bin/bash | |
383 | for dat in /sys/bus/usb/devices/*; do | |
384 | if test -e $dat/manufacturer; then | |
385 | grep "WCH.CN" $dat/manufacturer > /dev/null && echo auto > ${dat}/power/level && echo 0 > ${dat}/power/autosuspend | |
386 | fi | |
387 | done | |
388 | ||
389 | ||
e6b2b4df UH |
390 | Enabling multimeter / data logger measurement output |
391 | ---------------------------------------------------- | |
392 | ||
393 | Some multimeters or data loggers will not start outputting measurement data | |
394 | unless a certain action has been performed by the user beforehand. This is | |
395 | usually mentioned in the vendor manual of the respective device, but here's | |
396 | a short list for convenience: | |
397 | ||
1267f128 UH |
398 | - BBC Goertz Metrawatt M2110: Briefly press the "Start/Reset" button on the |
399 | interface panel on top. | |
de805ae5 | 400 | - Brymen BM257s: Press HOLD during power-on. |
e6b2b4df | 401 | - Digitek DT4000ZC: Briefly press the "RS232" button. |
de805ae5 | 402 | - EEVBlog 121GW: Hold "1ms PEAK" until the "BT" indicator is shown. |
f9c3df65 GS |
403 | - ES51919 based LCR meters (DER EE DE-5000, PeakTech 2170, UNI-T UT612): |
404 | Press the button with the "RS232" or "USB" or "PC link" label (usually | |
405 | the "up" cursor button). | |
c90beca7 | 406 | - Gossen Metrawatt Metrahit 1x/2x devices, driver gmc-mh-1x-2x-rs232: |
fadd0707 MH |
407 | - Power on the device with the "DATA" button pressed. |
408 | - Metrahit 2x devices must be configured for the respective interface type. | |
c90beca7 | 409 | - Gossen Metrawatt Metrahit 2x devices, driver gmc-mh-2x-bd232: |
fadd0707 MH |
410 | - 'BD232' interface: |
411 | The multimeter must be configured for the respective interface type. | |
412 | - 'SI232-II' interface ("PC Mode"): | |
413 | The multimeter must be configured for interface type 'BD232' (all), | |
414 | 'SI232 online' (28-29S) or 'SI232 store' (22-26x). The interface must | |
415 | be configured to the same baud rate as the host (default 9600). | |
416 | Multimeter and interface must be configured to the same address. | |
309bb27e GS |
417 | - Metrix MX56C: Press the PRINT button to have the meter send acquisition |
418 | data via IR. Hold the PRINT button to adjust the meter's transmission | |
419 | interval. | |
1267f128 UH |
420 | - Norma DM950: If the interface doesn't work (e.g. USB-RS232 converter), power |
421 | on the device with "FUNC" pressed (to power the interface from the DMM). | |
e6b2b4df UH |
422 | - PCE PCE-DM32: Briefly press the "RS232" button. |
423 | - RadioShack 22-812: Press and hold "SELECT" and "RANGE" together. | |
424 | - TekPower TP4000ZC: Briefly press the "RS232" button. | |
d9e79c51 | 425 | - Tenma 72-7750: Briefly press the "RS232C" button. |
4104ef81 | 426 | - UNI-T UT60G: Briefly press the "RS232C" button. |
7cb69b18 | 427 | - UNI-T UT61B/C/D: Press the "REL/RS232/USB" button for roughly 1 second. |
8769478c UH |
428 | - UNI-T UT71x: Press the "SEND/-/MAXMIN" button for roughly 1 second. |
429 | Briefly pressing the "EXIT" button leaves this mode again. | |
1b142b78 UH |
430 | - UNI-T UT325: Briefly press the "SEND" button (as per manual). However, it |
431 | appears that in practice you don't have to press the button (at least on | |
432 | some versions of the device), simply connect the device via USB. | |
1267f128 UH |
433 | - V&A VA18B/VA40B: Keep the "Hz/DUTY" key pressed while powering on the DMM. |
434 | - Victor 70C/86C: Press the "REL/RS232" button for roughly 1 second. | |
45bb47a7 | 435 | - Voltcraft VC-830: Press the "REL/PC" button for roughly 2 seconds. |
c36f78f7 | 436 | - Voltcraft VC-870: Press the "REL/PC" button for roughly 1 second. |
e6b2b4df UH |
437 | |
438 | ||
7b356712 UH |
439 | ChronoVu LA8/LA16 USB VID/PIDs |
440 | ------------------------------ | |
c77ed446 | 441 | |
7b356712 UH |
442 | The ChronoVu LA8/LA16 logic analyzer is available in two revisions. Previously, |
443 | the device shipped with a USB VID/PID of 0403:6001, which is the standard ID | |
c77ed446 UH |
444 | for FTDI FT232 USB chips. |
445 | ||
7b356712 | 446 | Since this made it hard to distinguish the LA8/LA16 from any other device |
c77ed446 | 447 | with this FTDI chip connected to the PC, the vendor later shipped the |
7b356712 | 448 | device with a USB VID/PID of 0403:8867. |
c77ed446 | 449 | |
7b356712 UH |
450 | The 'chronovu-la' driver in libsigrok supports both VID/PID pairs and |
451 | automatically finds devices with either VID/PID pair. | |
c77ed446 UH |
452 | |
453 | ||
454 | OLS | |
455 | --- | |
456 | ||
e311f770 UH |
457 | The Dangerous Prototypes Openbench Logic Sniffer (OLS) logic analyzer |
458 | driver in libsigrok assumes a somewhat recent firmware has been flashed onto | |
459 | the OLS (it doesn't need a firmware upload every time it's attached via USB, | |
460 | since the firmware is stored in the device permanently). | |
c77ed446 UH |
461 | |
462 | The most recent firmware version that is tested is 3.07. | |
463 | ||
464 | If you use any older firmware and your OLS is not found or is not working | |
465 | properly, please upgrade to at least this firmware version. Check the | |
466 | Dangerous Prototypes wiki for firmware upgrade instructions: | |
467 | ||
468 | http://dangerousprototypes.com/docs/Logic_Sniffer_upgrade_procedure | |
469 | ||
470 | Also, you need to specify a serial port for the OLS in the frontends, e.g. | |
471 | using the 'conn' option in sigrok-cli, and you also need to have the | |
472 | permissions to access the serial port (see above). | |
473 | ||
474 | Example: | |
475 | ||
476 | $ sigrok-cli --driver ols:conn=/dev/ttyACM0 ... | |
477 |