Search found 315 matches

by hexamer
Sat Oct 25, 2014 3:03 pm
Forum: Applications
Topic: Frequency Response Analyzer with Bode Plots
Replies: 629
Views: 3280443

Re: Frequency Response Analyzer with Bode Plots

Hi hexamer, - At enumeration I get no serial number ( I have fix this by hardcoded desc .... ) have you an idea? I notice that in ScopeSelector::GetAvailableScopes, I don't check the return value of the enumeration function. It's this line: status = EnumerationFuncs[idx]( &count, (int8_t*)serials, ...
by hexamer
Sat Oct 25, 2014 1:35 pm
Forum: Applications
Topic: Frequency Response Analyzer with Bode Plots
Replies: 629
Views: 3280443

Re: Frequency Response Analyzer with Bode Plots

Hi hexamer, I have get your code and add the ps6402D .... but I have two problems: - At enumeration I get no serial number ( I have fix this by hardcoded desc .... ) - the GetValue calls return allway an overflow on both cannels ... have you an idea? Hello! Thanks for giving this a try. I have a co...
by hexamer
Fri Oct 24, 2014 3:20 pm
Forum: General Software Discussions
Topic: No way to find which frequency is generated since SDK?
Replies: 2
Views: 4659

Re: No way to find which frequency is generated since SDK?

I assume you're talking about a sweep scenario and you want to query the scope to ask it what is the current frequency while it's sweeping. I don't see any API to do that. Could you spare an input channel to measure the frequency? Otherwise, depending on your application , you could probably manuall...
by hexamer
Fri Oct 24, 2014 12:34 pm
Forum: Applications
Topic: Frequency Response Analyzer with Bode Plots
Replies: 629
Views: 3280443

Re: Frequency Response Analyzer with Bode Plots

Thanks for the neat tool. It works great on the PS5444B using a WinXP 64 virtual machine under Parallels Desktop v9 on Mac OSX 10.9.3. Here's the output for a series RL circuit. R is 10 Ohms, output is taken across the R. The plot shows the self-resonance of the L. http://tinyurl.com/lozqnjn ChetFT...
by hexamer
Wed Oct 22, 2014 5:25 pm
Forum: General Software Discussions
Topic: Proper way to disable function generator
Replies: 2
Views: 4659

Proper way to disable function generator

I see that for some scope models the documentation is clear. E.g. passing a 0 start_frequency in ps3000_set_siggen disables the generator. However, for other scopes I don't see explicit documentation. E.g. for PS5000A: passing 0.0 frequency generates PICO_SIG_GEN_PARAM. Passing a valid frequency but...
by hexamer
Fri Oct 17, 2014 12:58 pm
Forum: Applications
Topic: Frequency Response Analyzer with Bode Plots
Replies: 629
Views: 3280443

Re: Frequency Response Analyzer with Bode Plots

A fix for the bug encountered by torsj and support for PS2000 driver family are now in v0.3b: https://bitbucket.org/hexamer/fra4picoscope/downloads/FRA4PicoScope%200.3b.msi This fixed my problem with the 2205MSO. Thank you for your good work. It is appreciated :D Tor. You're welcome. Thanks again f...
by hexamer
Fri Oct 17, 2014 4:18 am
Forum: Applications
Topic: Frequency Response Analyzer with Bode Plots
Replies: 629
Views: 3280443

Re: Frequency Response Analyzer with Bode Plots

A fix for the bug encountered by torsj and support for PS2000 driver family are now in v0.3b: https://bitbucket.org/hexamer/fra4picos ... 200.3b.msi
by hexamer
Thu Oct 16, 2014 3:29 pm
Forum: Applications
Topic: Frequency Response Analyzer with Bode Plots
Replies: 629
Views: 3280443

Re: Frequency Response Analyzer with Bode Plots

Great work! I downloaded the latest windows prebuilt but it didn't work for me. The log shows the following messages: Fatal error: Failed to setup input channel: 15 Status: 2205MSO S/N: AV729/026 successfully initialized. Fatal error: Failed to setup input channel: 15 Do you have any ideas? At firs...
by hexamer
Thu Oct 16, 2014 3:14 pm
Forum: Applications
Topic: Frequency Response Analyzer with Bode Plots
Replies: 629
Views: 3280443

Re: Frequency Response Analyzer with Bode Plots

Aaron, I would like to give it a try. I have a 2204A but got the message that it found no compatible hardware. (The hardware works ok with the standard software.) Is the 2204 supported? Regards Jim Jim, One minor compromise I considered making is to only "enumerate" one scope for the driver models ...
by hexamer
Thu Oct 16, 2014 3:04 pm
Forum: Applications
Topic: Frequency Response Analyzer with Bode Plots
Replies: 629
Views: 3280443

Re: Frequency Response Analyzer with Bode Plots

Great work! I downloaded the latest windows prebuilt but it didn't work for me. The log shows the following messages: Fatal error: Failed to setup input channel: 15 Status: 2205MSO S/N: AV729/026 successfully initialized. Fatal error: Failed to setup input channel: 15 Do you have any ideas? Thank y...
by hexamer
Thu Sep 18, 2014 4:12 pm
Forum: Applications
Topic: Frequency Response Analyzer with Bode Plots
Replies: 629
Views: 3280443

Re: Frequency Response Analyzer with Bode Plots

Thank you, Hitesh. While I'm asking about this, one other related annoyance is that the current enumeration functions don't return the model number of the scope. You have to open the scope to find that out. The downside of that in my application is this: There are some scope models that are not comp...
by hexamer
Wed Sep 10, 2014 1:57 pm
Forum: Applications
Topic: Frequency Response Analyzer with Bode Plots
Replies: 629
Views: 3280443

Re: Frequency Response Analyzer with Bode Plots

Jim, Thank you for the interest. According to my research, the 2204A is one of the few unique cases where, despite the name, it's not supported by the 2000A series driver. Rather, it's supported by the 2000 series driver, for which I don't have support yet. There's certainly no technical limitation ...
by hexamer
Mon Aug 18, 2014 10:55 pm
Forum: PicoScope 6 for Windows
Topic: Frequency Response Measurement
Replies: 1
Views: 2916

Re: Frequency Response Measurement

The spectrum analyzer (2204A scope+software) has a range from DC to the effective bandwidth of the scope (10 MHz), so I see no reason why not. There are some pretty inexpensive DIY function generators available on Ebay that use DDS to generate sine well above 10 MHz.
by hexamer
Mon Aug 18, 2014 12:59 pm
Forum: Pre-Sales Advice
Topic: Bode Plot with PicoScope ?
Replies: 24
Views: 41791

Re: Bode Plot with PicoScope ?

If anyone on this thread is interested, I started developing a tool to meet this need. See this thread for more details: http://www.picotech.com/support/topic14311.html
by hexamer
Sat Aug 16, 2014 5:02 am
Forum: Applications
Topic: Frequency Response Analyzer with Bode Plots
Replies: 629
Views: 3280443

Frequency Response Analyzer with Bode Plots

Hello All, Based on a need I had for a good Frequency Response Analysis tool for PicoScope, I started to develop one. Initially it was just for my PS5444A, but I decided to go ahead and make it general purpose since I had seen several posts on here asking for this. Unfortunately I don't have any oth...