ps6000GetValuesBulk throw access violation or return buffer with all 0s

huangaihui74 · Post by **huangaihui74** » Thu Mar 09, 2023 2:18 pm

We are using PicoScope 6425E and PicoSDK_32_10.7.22.241 to create our custom code and there are 2 issues:
1. We are using the rapid mode with 32 memory segment and 1000 samples. Function ps6000GetValuesBulk throws an access violation and crashes our program. It works if we decrease the number of the memory segment to less than 24, but this function still takes long time to return if the number is big.
2. Instead of get values of 32 segments back all at once, we call ps6000GetValuesBulk segment to segment, but it randomly shows up that the last few segments returns buffer of all 0s. In other words, the first few segments data are valid, and then the rest comes back all 0s.

HChen

Post by **Martyn** » Fri Mar 31, 2023 1:56 pm

A colleague sent a reply to your email on March 9th

What programming language are you coding it in?
Are you able to send in your code file so we can look at it and try to replicate?

can you check if our emails are going to your spam folder.

huangaihui74 · Post by **huangaihui74** » Mon Apr 03, 2023 5:01 pm

Hi,

No email is received. Spam folder is checked and no email from Pico support team.
The application is built in VB.NET with Visual Studio 2017.

Thank you,

HChen

Post by **Martyn** » Tue Apr 04, 2023 7:37 am

As there appears to be an issue with emails can you post your code here

huangaihui74 · Post by **huangaihui74** » Wed Apr 19, 2023 11:25 pm

Hi Enclosed is the test code file I implemented in vb.net. Function PICOSCOPE_CaptureDataWithNoOfWaveforms
is the one we are using.

Thank you,

Huizhong Chen

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