Search found 756 matches

by bennog
Wed Mar 06, 2024 6:25 am
Forum: PicoScope 7 for Windows, Linux and Mac
Topic: Accessing metadata from .psdata files
Replies: 3
Views: 320

Re: Accessing metadata from .psdata files

The file format is closed proprietary. So no possibility of reading the metadata from the .psdata XML.

Why don't you use the date and time of the .psdata files.

Benno
by bennog
Tue Mar 05, 2024 9:08 pm
Forum: USB PC Oscilloscopes
Topic: Max number of Picoscope 4444 usable on a computer
Replies: 13
Views: 6348

Re: Max number of Picoscope 4444 usable on a computer

then your only option is to have 2 versions of Picoscope running at the same time 1 for each scope.
the problem is to get them in sync with triggers.

Benno
by bennog
Tue Mar 05, 2024 9:04 pm
Forum: Getting Started
Topic: Automatically saves waveforms when triggered
Replies: 3
Views: 327

Re: Automatically saves waveforms when triggered

you can do this with alarms.
be aware you can fill your harddisk in a short amount of time if you have a lot of triggers.

Benno
by bennog
Tue Mar 05, 2024 9:01 pm
Forum: Getting Started
Topic: How to make a calculation
Replies: 8
Views: 678

Re: How to make a calculation

can you post a .psdata file.
Benno
by bennog
Tue Mar 05, 2024 7:01 am
Forum: USB PC Oscilloscopes
Topic: Max number of Picoscope 4444 usable on a computer
Replies: 13
Views: 6348

Re: Max number of Picoscope 4444 usable on a computer

2 of the 4444 scopes at the same time is no problem.

But remember you don't get 8 channels in picoscope !
You get 2 times the picoscope window open with 4 channels on each screen !
The total number of channels will be 8 but not in program.

Unless you write your own software in the SDK.

Benno
by bennog
Thu Feb 29, 2024 6:32 am
Forum: PicoScope 7 for Windows, Linux and Mac
Topic: Y Axis Rescaling on AC coupled Display
Replies: 2
Views: 192

Re: Y Axis Rescaling on AC coupled Display

As far as I know you have only a 250mV offset in the mv ranges. But there are 2 solutions to your problem. They are only working if the GND of your 5V trouble circuit is not connected to the GND of your PC. Most simple is have a external 5V supply that is stable connect the GND of the 5V supply and ...
by bennog
Wed Feb 28, 2024 8:15 am
Forum: Pre-Sales Advice
Topic: Memory and USB speed confusion
Replies: 22
Views: 3654

Re: Memory and USB speed confusion

I also love to have the option to write .psdata files from the SDK if there is a scope connected at the moment of writing the file. But if you know how the file is formatted then you know there is a little more in the .psdata file than only the scanned data values of the scope. There is a XML file i...
by bennog
Wed Feb 28, 2024 6:51 am
Forum: PicoScope 7 for Windows, Linux and Mac
Topic: Python support for Frequency Counting + PicoScope 4225A
Replies: 3
Views: 982

Re: Python support for Frequency Counting + PicoScope 4225A

Short google search gives below link. So you can process the data in the file. https://stackoverflow.com/questions/874461/read-mat-files-in-python P.S. the counting of frequency should be done in python on the data read from the mat file. so the number of rising / faling edges over the sample timest...
by bennog
Wed Feb 28, 2024 6:48 am
Forum: Pre-Sales Advice
Topic: Memory and USB speed confusion
Replies: 22
Views: 3654

Re: Memory and USB speed confusion

What you pay for a picoscope is for a big part also for software development.
If you compare the quality and possibilities of the software and the format is open the cheap competition can sell cheap products with quality software bundled.

Benno
by bennog
Sun Feb 25, 2024 9:11 am
Forum: Pre-Sales Advice
Topic: Memory and USB speed confusion
Replies: 22
Views: 3654

Re: Memory and USB speed confusion

I have done this a long time ago, I can read .psdata files but not write them. Probably because there are some CRC's that check the validity of the data. This was back in 2012 and have no time to document it or investigate where the CRC's are. My start point in 2012 was ZipLib.dll. I had no urgent n...
by bennog
Sat Feb 24, 2024 1:34 pm
Forum: Pre-Sales Advice
Topic: Memory and USB speed confusion
Replies: 22
Views: 3654

Re: Memory and USB speed confusion

I also prefer picoscope, because of the UI and the possibility of using the SDK.
The only downside is if you use the SDK then there is no way to view the results in picoscope software.
Unless you reverse engineer the .psdata format 8)

Benno
by bennog
Sat Feb 24, 2024 8:34 am
Forum: Pre-Sales Advice
Topic: Memory and USB speed confusion
Replies: 22
Views: 3654

Re: Memory and USB speed confusion

You know the 2000 series is USB-2 scope and you wont get the USB-3 speeds.

Benno
by bennog
Thu Feb 22, 2024 7:37 pm
Forum: Pre-Sales Advice
Topic: Memory and USB speed confusion
Replies: 22
Views: 3654

Re: Memory and USB speed confusion

If that is really the case then it should be a better option for your problem.
I have seen some YouTube reviews and it looks like a nice device.

Benno
by bennog
Thu Feb 22, 2024 9:31 am
Forum: Pre-Sales Advice
Topic: Memory and USB speed confusion
Replies: 22
Views: 3654

Re: Memory and USB speed confusion

1 correction on the Saleae Logic Pro 8 here you need to devide the sample rate also by the number of channels in use. So for single channel use PS can do streaming at 100 - 125 MS/sec. The Saleae can do 50 MS/sec (if you are lucky) The picoscope uses the internal memory (32 / 64 MS) as buffer memory...
by bennog
Wed Feb 21, 2024 3:40 pm
Forum: Pre-Sales Advice
Topic: Memory and USB speed confusion
Replies: 22
Views: 3654

Re: Memory and USB speed confusion

Do you have examples of other brands.
I have not seen many others with that amount of sample memory.

Benno