Search found 7 matches

by skyerfree
Tue Dec 04, 2012 3:34 am
Forum: MATLAB
Topic: Segmentation violation on MATLAB 2011a
Replies: 1
Views: 3172

Segmentation violation on MATLAB 2011a

Hi, I am using the example matlab file "PicMatlab.m" for 2000 downloaded from pictech.com. I can successfully run it in MATLAB 2010a. However, I got the below segmentation violation in MATLAB 2011a. I didn't change anything in the code, just run it on different versions. When i debug the code, I can...
by skyerfree
Tue Sep 18, 2012 5:47 am
Forum: C and C++
Topic: PS3424 input range
Replies: 1
Views: 2180

PS3424 input range

Hi My signal's range is changed with time, when the signal is very weak, only a few microvolts, I can't obtain the data using 2V range. I have to change to 50mV range in my code. However, using picoscope 6, it can always capture good data. I use the same sampling rate, sampling interval and no of sa...
by skyerfree
Tue Sep 18, 2012 1:31 am
Forum: C and C++
Topic: PS3425 data resolution problem.
Replies: 3
Views: 2958

Re: PS3425 data resolution problem.

Hi Martyn, Thanks for your reply. After view the properties, the picoscope using sample interval 100ns, sample rate 10MS/s, and no of samples 2006. I am using MATLAB with the following code to set the picoscope: timebase is initially set as 0. while ~calllib('PS3000','ps3000_get_timebase',data.unith...
by skyerfree
Mon Sep 17, 2012 10:28 am
Forum: C and C++
Topic: PS3425 data resolution problem.
Replies: 3
Views: 2958

PS3425 data resolution problem.

Hi, I've used PS 3425 to acquire data from some inputs. I can get a good data when I use picoscope 6 see figure picoscope 6.jpg However, with the same input, when I use the program with block mode to acquire the data, I can only get the data like this matlab_data.jpg Is there any way to get the good...
by skyerfree
Wed Sep 05, 2012 1:51 am
Forum: USB PC Oscilloscopes
Topic: How can I know the triggered time of a channel?
Replies: 3
Views: 2247

Re: How can I know the triggered time of a channel?

Hi,

Thanks for your reply.

How can I know the time when the channel is triggered?
by skyerfree
Tue Sep 04, 2012 5:41 am
Forum: USB PC Oscilloscopes
Topic: How can I know the triggered time of a channel?
Replies: 3
Views: 2247

How can I know the triggered time of a channel?

I want to measure the time delay of two channel in Picoscope 2205. Channel A generates signal, and Channel B receives it. The question is: 1). Can the channel only send out several cycles of wave, say, 5 cycles of sine wave? 2). How can I know the channel B is triggered? How to get the time when the...
by skyerfree
Tue Mar 13, 2012 1:29 am
Forum: C and C++
Topic: The unit of the obtained value
Replies: 1
Views: 2062

The unit of the obtained value

Hi, when I using function ps2000_get_times_and_values() and ps2000_get_values() in C/C++. How can I know the units of the value?

Thanks