Products > Test Equipment

SainSmart DDS120 & DDS140 USB Oscilloscope

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bianchifan:

--- Quote from: Ripman on June 06, 2016, 01:57:10 pm ---Do you know if this modified version works for DDS140?
--- End quote ---
Yes, it doesn't work.


--- Quote from: Ripman on June 06, 2016, 01:57:10 pm ---I have troubles getting Triggers (Normal/Single) to work sometimes.
--- End quote ---
That seems to be normal, triggers are not really working at all.


--- Quote from: doctormord on May 25, 2016, 03:51:38 pm ---I set up the sources on GitHub:

https://github.com/doctormord/OpenBuudai

Any commits are welcome.
--- End quote ---

mjwx4p:
here is my udev-rule (file 10-local.rules)

ACTION=="add",  SUBSYSTEM=="usb",  ATTR{idVendor}=="1111",  ATTR{idProduct}=="2222",  MODE="0666",  GROUP="plugdev"

If i list my usb devices, there is a weird entry for my oscilloscope:

Bus 003 Device 006: ID 1111:2222 Pandora International Ltd.

I have the same ID on the Windows 10 OS. But with the original driver (but only with the old version of it) the oscilloscope works, but only with the bad original software DDS-120 from sainsmart themself.
This is my oscilloscope definitely, cause i had tested it. If i unplug my oscilloscope the entry doesn't appear.
Do i need to patch the firmware? If yes, how?
Thanks for your help.
Regards
Marko

doctormord:
Strange, the older ones always have 8102:8102 (pid/vid) do your firmware is different.

Check the code in openbuudai if the app is fixed to the older pid/vid combination.

mjwx4p:
Hi,

--- Quote from: doctormord on June 13, 2016, 09:27:50 am ---Strange, the older ones always have 8102:8102 (pid/vid) do your firmware is different.

Check the code in openbuudai if the app is fixed to the older pid/vid combination.

--- End quote ---
that was it. Thanks. I think these strange VID:PID combination is a mistake and not normal. Pandora Industries Ltd. isn't a vendor who produced oscilloscopes. In the OpenBuudai code i changed the pid/vid to my requirements and OpenBuudai works now.
Damn, i have many jammings in my scope ( i want to trigger the code of a remote control), but this is normal, we are living here very close to radio mast of cellphone-provider, this is the reason of these jammings.

doctormord:
It would be interesting if the firmware differs much to the one I have. Are you able to dump the firmware?

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