Search found 169 matches

by Chris
Fri Apr 01, 2011 2:47 pm
Forum: USB PC Oscilloscopes
Topic: Response Time PS 4224
Replies: 3
Views: 2252

Re: Response Time PS 4224

You should easily be able to do this. It's withing the capabilities of block mode, without needing to use memory segmentation of rapid block mode. Have you tried using the ps4000ExampleBlock.vi in the PS4000 SDK, downloadable from the Pico Website http://www.picotech.com/software.html You are correc...
by Chris
Thu Mar 31, 2011 3:30 pm
Forum: General Software Discussions
Topic: Time/date stamping PLW files
Replies: 5
Views: 4514

Re: Time/date stamping PLW files

I think the only way you'll be able to do this is by stopping the recording each hour, and then doing you command line renaming. You can set the PicoLog recorder to Repeat after delay (File, New Settings, Recording), and set a restart delay. The next screen, Sampling Rate, allows you to set a time t...
by Chris
Thu Mar 31, 2011 3:15 pm
Forum: .Net Languages (C#, VB.Net, .)
Topic: GetTimebase sets wrong timeInterval
Replies: 3
Views: 3816

Re: GetTimebase sets wrong timeInterval

But that's no the case. :? It is 0(ns) instead.

Why do you think a 0ns sampling interval has been set?
by Chris
Thu Mar 31, 2011 1:59 pm
Forum: LabVIEW
Topic: GetUnitInfo string garbled 4227/4224
Replies: 4
Views: 3362

Re: GetUnitInfo string garbled 4227/4224

What parameters do you have set in your ps4000GetUnitInfo function? status numeric signed 16 bit int handle numeric signed 16 bit int pass by value infostring String C String Pointer minsize stringLength stringLength numeric signed 16 bit int pass by value reqsize numeric signed 16 bit int pass by P...
by Chris
Wed Mar 30, 2011 1:41 pm
Forum: General Software Discussions
Topic: Time/date stamping PLW files
Replies: 5
Views: 4514

Re: Time/date stamping PLW files

The PicoLog recorder application doesn't enable you to do this.

Only by writing your own recording aplication would you be abl to do this.
by Chris
Wed Mar 30, 2011 1:31 pm
Forum: LabVIEW
Topic: PicoScope 5203 data real-time acquisition
Replies: 1
Views: 2389

Re: PicoScope 5203 data real-time acquisition

Accuracy depends upon the voltage range being used.

The mv level is determined by

(ADC count * range selected ) / 32512

Make sure the range selected in the ps5000SetChannel call is not too high for the voltage level being measured.
by Chris
Mon Mar 28, 2011 4:22 pm
Forum: .Net Languages (C#, VB.Net, .)
Topic: No LED flashing on 4227
Replies: 3
Views: 3442

Re: No LED flashing on 4227

That's correct. You can add whichever of the other function entry points you need.
by Chris
Fri Mar 25, 2011 3:14 pm
Forum: LabVIEW
Topic: Connect TC08 to labview
Replies: 4
Views: 4453

Re: Connect TC08 to labview

You will be able to use multiple units connected to one pc, connected through a usb hub. Use a powered hub. You can't synchronise the units, but that may not be important. If you start the units at the same time, the sample times will be close if your samle rate is slow. Labview has a 'write to spre...
by Chris
Fri Mar 25, 2011 2:21 pm
Forum: C and C++
Topic: usb connection
Replies: 13
Views: 8958

Re: usb connection

If you can let us know what you are doing when the connection gets broken, we can look into the issue.
by Chris
Fri Mar 25, 2011 2:14 pm
Forum: .Net Languages (C#, VB.Net, .)
Topic: No LED flashing on 4227
Replies: 3
Views: 3442

Re: No LED flashing on 4227

Thank you for reporting this error.

The FlashLed function not working on the ps4227 has been logged as a bug.

Although the C# application only has a subset of available functions, is does serve as an example of how to get started writing your own C# code.
by Chris
Wed Mar 23, 2011 11:26 am
Forum: LabVIEW
Topic: Block Mode (PicoScope 3424)
Replies: 1
Views: 1835

Re: Block Mode (PicoScope 3424)

In your ps3000_get_times_and_values function, you need to change the Calling convention from C to stdcall (WINAPI).
by Chris
Tue Mar 22, 2011 10:51 am
Forum: LabVIEW
Topic: Increase speed of Labview-routine with ADC20/24
Replies: 2
Views: 2568

Re: Increase speed of Labview-routine with ADC20/24

By default, the PicoLog application uses RealTimeContinuous mode. If you set PicoLog to measure in Streaming mode, you will find it also uses a high CPU count, because it polls. To get a lower CPU usage, you need to use HRDLCollectSingleValueAsync / HRDLGetSingleValueAsync, which are non-blocking ca...
by Chris
Tue Mar 22, 2011 10:43 am
Forum: .Net Languages (C#, VB.Net, .)
Topic: ADC20 picohrdl.dll - streamin eat PCU
Replies: 1
Views: 2891

Re: ADC20 picohrdl.dll - streamin eat PCU

By default, the PicoLog application uses RealTimeContinuous mode. If you set PicoLog to measure in Streaming mode, you will find it also uses a high CPU count, because it polls. To get a lower CPU usage, you need to use HRDLCollectSingleValueAsync / HRDLGetSingleValueAsync, which are non-blocking ca...
by Chris
Mon Mar 21, 2011 10:16 am
Forum: LabVIEW
Topic: Labview vi's for streaming ADC-24??
Replies: 1
Views: 2158

Re: Labview vi's for streaming ADC-24??

A working version of the streaming example will be included in the SDK > 10.1.0.8
by Chris
Mon Mar 21, 2011 10:03 am
Forum: General Software Discussions
Topic: Trigger question
Replies: 3
Views: 2916

Re: Trigger question

If the trigger even occurs before set number of pre-trigger samples has been reached, the trigger will not happen. If the set number of pre-trigger samples has been reached, the trigger will happen the next time the trigger event occurs. Even if a trigger event occurred before the set number of pre-...