Search found 78 matches

by BSI
Sun Mar 17, 2013 6:51 pm
Forum: General Software Discussions
Topic: adc counts
Replies: 3
Views: 3964

Re: adc counts

Is there a function call equivalent to ps3000aMaximumValue for 4227 and 4224 ? There does not seem to be a corresponding call to the Max ADC with ps4000.dll
Thx
L.
by BSI
Thu Mar 14, 2013 8:11 pm
Forum: LabVIEW
Topic: Rapid Block Mode LabVIEW PS4224
Replies: 34
Views: 32450

Re: Rapid Block Mode LabVIEW PS4224

Just noticing something here:

Does the above shifting issue occurs with a 4227 ??? It did with 4224, but now on a 4227 it does not...
Thx
L.

SDK: r10.4.3.1
LabVIEW 11.0.1.f2
Win 7 64
Pico 4227
by BSI
Fri Feb 08, 2013 5:09 pm
Forum: USB PC Oscilloscopes
Topic: 4227 External Trigger
Replies: 8
Views: 4484

Re: 4227 External Trigger

Ok. Thx.
Laurent
by BSI
Tue Feb 05, 2013 11:25 am
Forum: LabVIEW
Topic: Rapid Block Mode LabVIEW PS4224
Replies: 34
Views: 32450

Re: Rapid Block Mode LabVIEW PS4224

Ok, I applied a temp. fix that may be helpful. It builds on the previous example using LV DataReference and correct the "Wrap" by re-shifting each capture by one sample. As a result if one wants to acquire 100 samples, 10times (ncapture = 10), one should set the buffer to 100+10 samples. Then shift ...
by BSI
Fri Feb 01, 2013 7:50 am
Forum: USB PC Oscilloscopes
Topic: 4227 External Trigger
Replies: 8
Views: 4484

Re: 4227 External Trigger

Thx Ziko for the clarification, it is helpful, and did not cause trouble. :D Still on the triggering topic with a 4224 or 4227 : - if I want to acquire on Channel 1, and trigger out of channel 2 ( or vice versa), can the range of the triggering channel be set differently than the other channel's (ac...
by BSI
Thu Jan 24, 2013 7:15 pm
Forum: LabVIEW
Topic: Rapid Block Mode LabVIEW PS4224
Replies: 34
Views: 32450

Re: Rapid Block Mode LabVIEW PS4224

Following up on this thread to obtain a Rapid Block Mode with a 4000 series scope, I changed the code using the ps4000.dll instead of the ps3000.dll . SDK: r10.4.3.1 LabVIEW 11.0.1.f2 Win 7 64 Pico 4224. The code looks like this: Capturecode.PNG Capture.PNG ps4000SetDataBufferBulk is used as many ti...
by BSI
Thu Jan 24, 2013 1:46 pm
Forum: USB PC Oscilloscopes
Topic: 4227 External Trigger
Replies: 8
Views: 4484

Re: 4227 External Trigger

Hi, The 4227 specs indicate for the Ext Trigger that - Voltage range ±20 V - Threshold range ±150 mV to ±20 V Based on previous discussion in this thread, with a 10bit ADC, one would expect 40mV granularity for the trigger level. What does the +/- 150mV " threshold range " indicate then? Aren' t the...
by BSI
Mon Jun 25, 2012 3:52 pm
Forum: USB PC Oscilloscopes
Topic: 4227 grounding
Replies: 2
Views: 2102

Re: 4227 grounding

Thx!
Laurent
by BSI
Fri Jun 15, 2012 3:58 pm
Forum: USB PC Oscilloscopes
Topic: 4227 grounding
Replies: 2
Views: 2102

4227 grounding

Hi, I am looking for clarification on how the grounds are connected internally in the Pico 4227. From testing the grounds on channel A and B ( when the scope is off), it looks like both channels' grounds are connected to each other. So does it mean that : 1. when I am acquiring from both A and B sim...
by BSI
Fri Jun 15, 2012 3:53 pm
Forum: General Software Discussions
Topic: Picopp folder missing in SDK r10.4.1.1
Replies: 5
Views: 4441

Re: Picopp folder missing in SDK r10.4.1.1

Ha !! :mrgreen: ,
I was not crazy after all.
Thx
Laurent
by BSI
Sat Jun 09, 2012 3:15 pm
Forum: General Software Discussions
Topic: Picopp folder missing in SDK r10.4.1.1
Replies: 5
Views: 4441

Re: Picopp folder missing in SDK r10.4.1.1

Martyn,
Here is the content of the system\x86 folder from the SDK zip file:
System-x86 folder.PNG
no picopp.sys nor .inf, so they can't be manually placed in their expected location...

L.
by BSI
Mon Jun 04, 2012 5:14 pm
Forum: General Software Discussions
Topic: Picopp folder missing in SDK r10.4.1.1
Replies: 5
Views: 4441

Picopp folder missing in SDK r10.4.1.1

I want to install the Pico driver without installing Picoscope. In the SDK 10.4.1.1 folder ..system\, the SystemDrivers readme file indicates: Before using the examples for USB devices, kernel drivers must be installed. This is normally performed by the PicoScope or PicoLog installer. In order to in...
by BSI
Fri Apr 27, 2012 9:02 pm
Forum: General Software Discussions
Topic: Pico driver handle value
Replies: 6
Views: 4794

Re: Pico driver handle value

Hi Martyn,
Yes ! 16384 . It was a typo.
So if I read you correctly. Handles are now starting at 16384 (Hex4000) ?

Thx
Laurent
by BSI
Tue Apr 17, 2012 3:37 pm
Forum: General Software Discussions
Topic: Pico driver handle value
Replies: 6
Views: 4794

Re: Pico driver handle value

I had situations where an error would occur and the handle would remain "active", and it would become impossible to re-open a connection unless the scope USB cable is unplugged/replugged. This is not possible in some situation, and the most successful approach I used was to preempt the issue by firs...
by BSI
Thu Apr 12, 2012 2:47 pm
Forum: USB PC Oscilloscopes
Topic: Using a PicoScope 4000 series with VirtualBox
Replies: 2
Views: 2587

Re: Using a PicoScope 4000 series with VirtualBox

Hi, After yet more fiddling it now works. I followed the instruction https://forums.virtualbox.org/viewtopic.php?f=6&t=29034 that describes the issue as well. This approach at first did not work, but after repeating it, it worked. But yes, it sounds that there are some potential issues with USB. Thx...