Search found 15 matches

by johnm1019
Thu Feb 07, 2013 10:00 am
Forum: C and C++
Topic: 64 bit PicoScope API
Replies: 18
Views: 17683

Re: 64 bit PicoScope API

Hitesh wrote: Is that a 320X or 3X0XA/B device?
We ship 3204A's in our products.
by johnm1019
Thu Feb 07, 2013 8:16 am
Forum: C and C++
Topic: 64 bit PicoScope API
Replies: 18
Views: 17683

Re: 64 bit PicoScope API

jbbles wrote:That's great news!! Our company currently uses the 2000 and 3000 level scopes.
Ditto on all account! 3000 here.
by johnm1019
Fri Jan 25, 2013 12:06 pm
Forum: General Software Discussions
Topic: SDK DLL's
Replies: 1
Views: 1859

SDK DLL's

Hi, I recently re-downloaded the SDK's for the 2000.DLL and the 3000a.DLL. I compared them with the versions in our source control and noticed that my old DLL's were PS2000 - 2.0.8.64 PS3000a - 1.0.0.162 and the new versions are PS2000 - 2.0.8.131 PS3000a - 1.0.0.302 Is there a changelog for these D...
by johnm1019
Wed Jun 06, 2012 9:35 am
Forum: USB PC Oscilloscopes
Topic: Picoscope 3000 Series Problem with USB Connection
Replies: 18
Views: 11119

Re: Picoscope 3000 Series Problem with USB Connection

Doesn't the picoscope driver support ACPI and USB power states?
by johnm1019
Wed Mar 07, 2012 9:03 am
Forum: General Software Discussions
Topic: PS3000a resolving error state
Replies: 3
Views: 2840

Re: PS3000a resolving error state

Hi Martyn, The picoscope is directly connected to one of the USB ports on the computer. It is a very new desktop computer with oodles of RAM and CPU. It also happens whether I choose one of the USB 3.0 or one of the 2.0 ports on the host (it has both). Other than mouse and keyboard, the device has o...
by johnm1019
Wed Feb 29, 2012 12:15 pm
Forum: General Software Discussions
Topic: PS3000a resolving error state
Replies: 3
Views: 2840

PS3000a resolving error state

Hi, my program streams data for a long time from one channel and continually analyzes it. sometimes, my ps3000a returns error code 07 from the call to ps3000aGetStreamingLatestValues. The manual lists this as PICO_NOT_RESPONDING. Typically when it enters this state, further attempts to read the data...
by johnm1019
Wed Jan 25, 2012 2:34 pm
Forum: General Software Discussions
Topic: picoscope safe eject
Replies: 1
Views: 1894

picoscope safe eject

I was wondering if its possible to have the picoscope hard-reset itself when the user "safe" ejects it from their computer. I would like to somehow trigger a hard reset of the picoscope.

specifically a 3204a.

Thanks
by johnm1019
Tue Jan 24, 2012 12:44 pm
Forum: General Software Discussions
Topic: 2203 vs. 3204a ADC scaling
Replies: 1
Views: 1878

2203 vs. 3204a ADC scaling

Hi, in the PDF for the 2203 it says oscope values are scaled from Constant Reading Voltage PS2000_LOST_DATA -32 768 Indicates a buffer overrun in fast streaming mode. PS2000_MIN_VALUE -32 767 Negative full scale 0 0 Zero volts PS2000_MAX_VALUE 32 767 Positive full scale and for the 3204a Function Vo...
by johnm1019
Fri Aug 05, 2011 1:33 pm
Forum: C and C++
Topic: 64 bit PicoScope API
Replies: 18
Views: 17683

Re: 64 bit PicoScope API

+1 vote for 64-bit.
Right now we have to use a second 32-bit application which communicates with our 64-bit application via a socket. A 64-bit driver would save us a lot of hassle and time.
by johnm1019
Fri Aug 05, 2011 1:17 pm
Forum: General Software Discussions
Topic: loss of precision during histograming
Replies: 4
Views: 3343

Re: loss of precision during histograming

Hi, With regards to your initial question, is this histogram a frequency versus amplitutde plot? If so have you tried using our spectrum view to replicate this? If not could you explain further what this view is doing? Kind regards This is a plot of pulse-height frequency. The input signal is rando...
by johnm1019
Fri Aug 05, 2011 1:11 pm
Forum: General Software Discussions
Topic: ps2203 potential bug
Replies: 2
Views: 2299

Re: ps2203 potential bug

thank you, this fixed it.
by johnm1019
Thu Jul 14, 2011 6:43 pm
Forum: General Software Discussions
Topic: loss of precision during histograming
Replies: 4
Views: 3343

loss of precision during histograming

Hello, I've recently written my own code to histogram my data as it comes back from fast_streaming. I have a problem that I can only seem to get 6 bits of precision. If I try to bin with 128 bins my histogram has precision artifacts as seen in the picture attached. When I use 64 bins, I get a proper...
by johnm1019
Mon Apr 04, 2011 5:45 pm
Forum: General Software Discussions
Topic: ps2203 potential bug
Replies: 2
Views: 2299

ps2203 potential bug

With the latest SDK and a 2203, ps2000_get_unit_info is broken and the code just dies when stepping through this call. App immediately crashes. If I don't call get_unit_info the rest of the code runs fine and I can fast stream and read samples and everything is peachy. Calling as follows #include "p...
by johnm1019
Mon Nov 08, 2010 10:48 am
Forum: General Software Discussions
Topic: full cpu utilization
Replies: 0
Views: 1729

full cpu utilization

Hello, I have an application that uses c++ to interface with the picoscope API. I find that whenever in fast_streaming mode (running a 2203, latest drivers and headers from the SDK) one CPU core is always pegged at 100% (i have a dual core). My code calls ps2000_get_streaming_last_values(m_handle, p...