Upps, "extracting all files" from the SDK with Windwos7 File Explorer did not extract the Wrapper\Release and System directory

Where do I get the ps4000wrap.dll containing the functions required for the VIs included in SDK PS4000sdk_r10_5_0_32? If I want to run the PicoScope4000ExampleStreaming.vi I get error messages that there are missing functions in the ps4000wrap.dll. The ps4000wrap.dll I use is downloaded from http://...

Yep! I found the reason for my problem.
After calling the RunBlock function you have to wait for at least for "sampling-timeintervall times pretrigger-samples" before the trigger event may occur.

Sorry, I didn't notice that the my zip file containing the SDK was to large.

Hi Martyn, Thank you for your answer. The suggested sequence is exactly what I did without success. As soon as the timebase value is longer than 7us the 1ms triggerpulse will not be recognized. What could I have made wrong? In the attachment you find my Labview program (BLP_Basics.vi) and the Arduin...

I'm using LabView to control a PicoScope 4224 in block mode collecting 100 points before the trigger event and 1000 after it. To start the measurement I have to send a command via RS232 to an other instrument. This instruments gives me a trigger pulse of 1ms, which is feed to channel B of the 4224 f...