Search found 33 matches

by BDR
Mon Apr 25, 2016 11:50 am
Forum: .Net Languages (C#, VB.Net, .)
Topic: Get latest streaming values
Replies: 6
Views: 4320

Re: Get latest streaming values

Yes, that is the code I am referring too, and yes it is for a pico 6000 series. I am writing in VB.net. The data buffers are set up with the maximum amount of memory available, all 100M points, both app / driver buffers and data buffers. (maybe this is the cause of the inefficiency?) There is a bit ...
by BDR
Fri Apr 22, 2016 1:44 pm
Forum: .Net Languages (C#, VB.Net, .)
Topic: Get latest streaming values
Replies: 6
Views: 4320

Get latest streaming values

GetStreamingLatestValues(handle) seems to randomly take longer than a few seconds and I end up missing data at random.

Has anyone ever come across this problem?
by BDR
Mon Mar 14, 2016 5:26 pm
Forum: VB and VBA (Excel, Access)
Topic: Measurements
Replies: 14
Views: 10663

Re: Measurements

Good day, Thank you. I didn't not realise that there was also a return from variable. I am still stuck at 20MS/s while calculating the RMS with no dataloss. When I try to repaint any values in a window for the user to see (once in 2-3seconds), it takes away too much from the computer to keep up. I w...
by BDR
Fri Mar 04, 2016 1:52 pm
Forum: VB and VBA (Excel, Access)
Topic: Measurements
Replies: 14
Views: 10663

Re: Measurements

Is there a command to determine what sample rate has been chosen by the scope once you pass the channel parameters?

If I set the channel to 102ns I have noticed that I am closer to 102.4ns. I need to know that exact number so that I can determine the limit of real time measurements.
by BDR
Thu Mar 03, 2016 3:31 pm
Forum: VB and VBA (Excel, Access)
Topic: Measurements
Replies: 14
Views: 10663

Re: Measurements

One more problem to solve from the previous post... I have tried downsampling anyways to see how much vertical accuracy is lost. I have turned up the sample rate equal to the downsample rate. I have been playing with it to see the trade off between real time and vertical accuracy. I seem to hit a wa...
by BDR
Wed Mar 02, 2016 12:28 pm
Forum: VB and VBA (Excel, Access)
Topic: Measurements
Replies: 14
Views: 10663

Re: Measurements

Good day, I have solved my problem, and I do not need to downsample. Other people may run into this problem. Start Loop Slow Code: TRUERMS = ((Sample(i) / 32512) * Vertical Scale) ^ 2 + TRUERMS Faster Code: TRUERMS = (((Sample(i) / 32512) * Vertical Scale) * ((Sample(i) / 32512) * Vertical Scale)) +...
by BDR
Mon Feb 29, 2016 7:10 pm
Forum: VB and VBA (Excel, Access)
Topic: Measurements
Replies: 14
Views: 10663

Re: Measurements

I am trying to figure out the downsampling mode. I have turned on averaging mode. My program keeps returning that the ratio is invalid. I have tried putting in several values into the downsample ratio. It keeps giving me the same error. I was expecting that if you put in 4, every 4 points will be av...
by BDR
Fri Feb 19, 2016 6:59 pm
Forum: Getting Started
Topic: Cannot connect to wireless USB server
Replies: 8
Views: 6222

Re: Cannot connect to wireless USB server

I saw that in some earlier posts. The range and speed of this device will not suffice.

I have been in contact with Cisco to see if they will work on it. If I get a working test set up, I will be sure to post something.
by BDR
Mon Feb 15, 2016 3:35 pm
Forum: VB and VBA (Excel, Access)
Topic: Measurements
Replies: 14
Views: 10663

Re: Measurements

One more question about the measurement coming from the picoscope software. I was reading about the picoscope processing an image for the PC to view the signal, and reprocesses when you want to see more detail. Are the measurement results from the pico software downsampled as well or are they based ...
by BDR
Mon Feb 15, 2016 3:22 pm
Forum: Getting Started
Topic: Cannot connect to wireless USB server
Replies: 8
Views: 6222

Re: Cannot connect to wireless USB server

I am also interested in getting the picoscope to work wirelessly. If I could get a direct feed of raw data through a wireless link at a lower data rate to get an idea of what the scope seeing. Then initiate a larger sample in block mode to be downloaded a little slower afterwards. The main reason fo...
by BDR
Thu Sep 03, 2015 5:22 pm
Forum: VB and VBA (Excel, Access)
Topic: Streaming Choices
Replies: 9
Views: 9372

Re: Streaming Choices

The status never changes from zero.
by BDR
Thu Sep 03, 2015 5:13 pm
Forum: VB and VBA (Excel, Access)
Topic: Streaming Choices
Replies: 9
Views: 9372

Re: Streaming Choices

Type TRIGGER_CONDITION channelA As Long channelB As Long channelC As Long channelD As Long external As Long aux As Long pulseWidthQualifier As Long End Type Declare Function ps6000OpenUnit Lib "ps6000.dll" (ByRef handle As Integer, ByVal serial As Byte) As Long Declare Sub ps6000CloseUnit Lib "ps60...
by BDR
Thu Sep 03, 2015 12:28 pm
Forum: VB and VBA (Excel, Access)
Topic: Streaming Choices
Replies: 9
Views: 9372

Re: Streaming Choices

Thanks for the info. Now that I know there is a flag, I will look for it and figure out how to use it. I seem to have a bigger problem though. When I go to set up channels in VBA, I cannot hear the circuitry changing over from 1M to 50ohm. I tried making a button to switch from one to the other. If ...
by BDR
Wed Sep 02, 2015 6:37 pm
Forum: VB and VBA (Excel, Access)
Topic: Streaming Choices
Replies: 9
Views: 9372

Re: Streaming Choices

I have been playing with the programming, and the problem may be that I don't understand the syntax. I am under the impression from the manual that you can do something like Call ps6000SetChannel(handle, 0, 1, PS6000_DC_50R, PS6000_50MV, 0, PS6000_BW_FULL) I don't believe this works because I cannot...
by BDR
Mon Aug 31, 2015 2:35 pm
Forum: VB and VBA (Excel, Access)
Topic: Streaming Choices
Replies: 9
Views: 9372

Streaming Choices

I am trying to figure out how to only stream after a trigger event has occured. I tried set the "pre trigger samples" value to zero. Right now it almost seems pointless to have a trigger set. With older scopes you could simply poll the scope until a trigger event occured. The picoscope manual is ver...