Re: Vertical Resolution PicoScope 3206D_MSO Serial: C0797/02 Dear Martyn, Thanks for your answer. You give, up to now, no answer on my question in my last post: " What I still don't understand are the intermediate values between the discrete ADC levels, which I see in both the A channel as well in t...

Hello Martyn,


Is there any progress in this case ?

It would be fine when I got a message from you.

With kind regards

Pierre

Dear Martyn, I get your point, that the scope doesn't downsample and that the raw 8-bit ADC value is multiplicated with a value, which is not 256, so that also the 8 LSB bits of the 16 bit result can change. In the attached picture files for Channel A and B you can easily see the discrete ADC levels...

Dear Hitesh and dear Martyn, I feel like we are talking about different things. I am not interested in the actual voltage being seen by the scope, I only want to know why my LSB bits are not zero. Today I re-read the api documentation and realized that you clearly state that the downsampling is perf...

Hello Hitesh, The reason, why the scaling impacts on my application, is that I don't know what the scope measures and therfore I can't rely on the data. I would expect with an 8-bit resolution and no downsampling that the 16-bit value can only change in 8-bit step intervals. But that doesn't. So my ...

Hello Hitesh, is there any progress in answering my problem ? I can't continue with my measurements without the knowledge how the 8 bits are scaled to 16 bits. As I allready mentioned in the past, all 16 bits, which I receive from the ps3000a.dll driver, are changing. I don't understand the logic be...

Hello Hitesh, I refer to the lastest version of the documentation.( picoscope-3000-series-a-api-programmers-guide.pdf) At page 5 (Chapter3.2) there is a graphic where the digital values of the figure 7F00, 3F80, 0000, C080 and 8100 are used. When I divide 3F80h(16256d) by 256 I get 63,5. This implie...

Hello, According to the specs of this scope, the vertical resolution is 8 bit. But according to the "picoscope-3000-series-a-api-programmers-guide.pdf" page 11, the vertical resolution is at least 9 bit. I have done several measurements with the scope where I used the API functions. I get the data w...

Hello, I copied the two files to the directory "C:\Program Files\Pico Technology\SDK\lib". The program compiled correctly. The executionstart of the application was also ok, until the C-statement "if ((status = ps3000aStop(unit.handle)) != PICO_OK)" The program exited after this statement with the m...

Hello Hitesh, I tested the 'new' drivers. I got the same error window from Microsoft. In my opinion these are the same drivers (at least with to the file size) as I downloaded yesterday. Furthermore these are also 32 bit drivers. Could you please send me the 64-bit variant ? Still with kind regards,...

Hello Hitesh,

I use Windows 7 Professional with Service Pack 1.

Kind regards,

Pierre

Hello Hitesh,

are you sure that you sent me 64-bit drivers ? According to the software tool PEBrowser Professional the old drivers are 64 bit drivers, but the new ones are 32 bit drivers ?

Kind regards,

Pierre

Hello Hitesh,

I forgot your question about the operating system. I use Windows 7 Professional with Service Pack 1.

Kind regards,

Pierre

Hello Hitesh, I ran the application out of Visual Studio 2013. After your question, I made a release version of the application and tried to start it from the command line. With the same messagebox from windows. Ccleaner gives me these results for the . NET software tools. - Microsoft .NET Framework...

Hello Hitesh, I checked the C-drive with CHKDSK. No errors found. I copied the two driver files (downloaded from your site) and the projectfiles to my laptop. I got the same result with the Windows error. After copying back the original files, I could execute the application. This is the same behavi...