Hi, Thank you for your reply. As what you said in the reply, I have updated the latest dll and also tried the ps3000aSetSimpleTrigger() function. However, the problem is still not solved. With setting trigger on, block mode runs OK but Streaming mode still does not work well. below is the streaming ...

Hi,I am writing my own software in delphi with scope 3204A. Now both block mode and streaming mode run OK without trigger on. However, when I set trigger on in my code, block mode runs OK when the trigger event occurs but the streaming mode does not work no matter the trigger event occurs or not. Th...