Search found 17 matches

by teck
Fri May 11, 2007 2:33 am
Forum: General Software Discussions
Topic: error message
Replies: 16
Views: 13452

Negative trigger problem

Hi, I seem to have a problem with the negtive trigger function of the API ps3000_set_trigger() As i am using the UI provided in the example streamingtest C++. The parameter "threshold" for trigger doesnt trigger at the negative set value. I tried the trigger in the Picoscope software and it also doe...
by teck
Thu Apr 26, 2007 8:27 am
Forum: General Software Discussions
Topic: error message
Replies: 16
Views: 13452

Hi, thanks a million for solving that guys! The problem with the memory leaks looks fine now with the new version of the DLL and libraries files. However, i realise that there is a maximum usage (100%) of the CPU usage from monitoring the task manager. Hmmm... Does this mean anything? As I will be r...
by teck
Mon Apr 23, 2007 4:54 am
Forum: General Software Discussions
Topic: error message
Replies: 16
Views: 13452

In addition to my earlier post, i would like to ask whats the significance of the number "18439" of the overview buffer size in the ps3000_run_streaming_ns command that is found in the example C++ program? Why is this particular number chosen?
ThankYou! :D

Regards,
teck
by teck
Mon Apr 23, 2007 12:45 am
Forum: General Software Discussions
Topic: error message
Replies: 16
Views: 13452

Hi, For what i am doing now, i am getting a stream of data by running the streaming mode and then stopping the device when the auto_stop flag is true using ps3000_stop to get unagregated data and then starting the device again for the next capture using ps3000_run_streaming_ns. By doing this, i obse...
by teck
Thu Apr 19, 2007 1:51 am
Forum: General Software Discussions
Topic: error message
Replies: 16
Views: 13452

Hi, What is the correct procedure if i want to get 10K samples, stop the device to get and process data and repeat this cycle over for many times? I am now repeatedly initialising the device (calling ps3000_run_streaming_ns()), stop to retrieve and process data and i found that there is significant ...
by teck
Wed Apr 18, 2007 5:16 am
Forum: General Software Discussions
Topic: error message
Replies: 16
Views: 13452

Hi, thanks for your solution. I realise that my automation program call ps3000_run_streaming_ns() everytime it begins on a new start cycle. Each time i call this function it allocates new buffer to the computer's memory by address and not freeing it. Thus the computer's memory runs out over time and...
by teck
Tue Apr 17, 2007 12:40 am
Forum: General Software Discussions
Topic: error message
Replies: 16
Views: 13452

hi, i tried using both new dll together with the new program downloaded 5.16.2 and also with my own program with the new dll file. The error message i receive is the same access violation error. I am doing an auto mation with it and after running for about a thousand times of capturing it will show ...
by teck
Wed Apr 11, 2007 7:55 am
Forum: General Software Discussions
Topic: error message
Replies: 16
Views: 13452

hi, i have tried to use the 5.16.2 version dl but i still encounter the same error now with "1micro second" as the time unit settings. May i know what could the error be? What are the changes to the latest version(5.16.2) of the example file? What is it that is changed to remove this error i encount...
by teck
Thu Apr 05, 2007 1:43 am
Forum: General Software Discussions
Topic: error message
Replies: 16
Views: 13452

error message

HI all, why is it that when i try to run the C++ streamingtest example it encounter the following error: First-chance exception at 0x1000e746 in streamingtest_71.exe: 0xC0000005: Access violation reading location 0x01687000. when i choose the sample settings as: sample time units: "nano" The program...
by teck
Tue Apr 03, 2007 8:07 am
Forum: General Software Discussions
Topic: urgent help: ps3000_stop()
Replies: 3
Views: 3475

does that apply to all picoscopes with regards to the stop command? how do i overcome this delay then?
by teck
Mon Apr 02, 2007 9:01 am
Forum: General Software Discussions
Topic: urgent help: ps3000_stop()
Replies: 3
Views: 3475

urgent help: ps3000_stop()

hi all, how long does it takes for the command ps3000_stop() to execute itself? I am doing an automation and needs to repeat the collection of data every 500ms using fast streaming mode in C++, but after calling ps3000_stop() the execution of this command itself takes approx 720ms. Does this command...
by teck
Fri Mar 16, 2007 12:49 am
Forum: General Software Discussions
Topic: streamingtests collects some data now, but still has problem
Replies: 9
Views: 7418

Hey, thanks jonathan! manage to get the cpp compiled. I also realised that the gui is slowing everything down. My application needs streaming to be fast. I was thinking we can do without the display of the screen, and just collect the data to store to a file. any opinions on that? In addition, i rea...
by teck
Thu Mar 15, 2007 2:12 am
Forum: General Software Discussions
Topic: Using PS3224 to detect max and min signals
Replies: 3
Views: 3577

I have attach the signals that i want to capture specifically. As the signals are automated to repeat every second, and in this second i only want to capture the signals and log them as specified in the attachement. The signals are at 36 KHz and it can be negative peaks(as in the attachment) or posi...
by teck
Thu Mar 15, 2007 2:10 am
Forum: General Software Discussions
Topic: Using PS3224 to detect max and min signals
Replies: 3
Views: 3577

I have attach the signals that i want to capture specifically. As the signals are automated to repeat every second, and in this second i only want to capture the signals as specified in the attachement. The signals are at 36 KHz and it can be negative peaks(as in the attachment) or positive peaks.
by teck
Wed Mar 14, 2007 12:54 am
Forum: VB and VBA (Excel, Access)
Topic: how to use fast streaming with callback
Replies: 1
Views: 3540

how to use fast streaming with callback

hi, i am trying to run fast streaming with a callback function in excel macros. HOw do i call get_streaming_last_values with the callback function? Does the callback function returns anything to the main program? My get_streaming_last_values always returns a FALSE suggesting parameters are out of ra...