Search found 7 matches

by alowell
Thu Oct 15, 2020 4:38 pm
Forum: PicoScope 6 for Linux
Topic: Vertical Resolution Inconsistency in PicoScope 6 GUI
Replies: 7
Views: 3130

Re: Vertical Resolution Inconsistency in PicoScope 6 GUI

Hi Gerry, Thanks again for your response! But now I'm confused. Can you please clarify how to convert the 16 bit signed integers returned by the API to real voltages? The programming manual implies that the scale factor should be 0.500/32512 in 8 bit mode, on the +/-500 mV vertical scale. So for exa...
by alowell
Wed Oct 14, 2020 3:21 pm
Forum: PicoScope 6 for Linux
Topic: Vertical Resolution Inconsistency in PicoScope 6 GUI
Replies: 7
Views: 3130

Re: Vertical Resolution Inconsistency in PicoScope 6 GUI

Hi Gerry, Thanks! To clarify, when the API functions return signed 16 bit integers, the integers are thus not evenly spaced? And this is how the calibration is expressed? I had assumed that in 8 bit mode, the lower 8 bits of the 16 bit ints could be ignored, but perhaps that is not the case if the v...
by alowell
Wed Oct 14, 2020 12:37 am
Forum: PicoScope 6 for Linux
Topic: Vertical Resolution Inconsistency in PicoScope 6 GUI
Replies: 7
Views: 3130

Re: Vertical Resolution Inconsistency in PicoScope 6 GUI

Hi Gerry, Thanks for your response, I had a hunch it had something to do with calibration. Sorry I forgot to attach the screenshot. I posted basically the same question in the Windows forum with a screenshot, here is the link: https://www.picotech.com/support/topic40819.html My next question is: how...
by alowell
Sun Oct 11, 2020 1:07 am
Forum: PicoScope 6 for Windows
Topic: Vertical resolution discrepancy in Picoscope 6?
Replies: 1
Views: 2204

Vertical resolution discrepancy in Picoscope 6?

Hi, I just made a similar post in the Linux sub-forum, although I'm noticing the same thing in the Windows version of Picoscope 6. In the attached image, I'm measuring the LSB size in volts for an 8 bit Picoscope 3406D on +/- 500 mV scale. The measured LSB size about 4.7 mV. However, I would have gu...
by alowell
Sat Oct 10, 2020 8:09 pm
Forum: PicoScope 6 for Linux
Topic: Vertical Resolution Inconsistency in PicoScope 6 GUI
Replies: 7
Views: 3130

Vertical Resolution Inconsistency in PicoScope 6 GUI

Hello, I have a PicoScope 3406D, which is an 8 bit scope. I'm using Ubuntu 18.04 LTS. I'm noticing something strange with PicoScope 6 GUI on Linux. In the screenshot below, I used the vertical cursors to measure the LSB size in volts. I get 4.7 mV on +/-500 mV scale. However, at 8 bits I would have ...
by alowell
Thu Jun 04, 2020 12:26 am
Forum: USB PC Oscilloscopes
Topic: USB3 Bandwidth -- Streaming Mode
Replies: 1
Views: 2552

USB3 Bandwidth -- Streaming Mode

Hello, I was curious about the upper limit on the data rate in streaming mode. I'm mostly familiar with 3000D and 5000D models. The spec is 125 MS/s total across all channels in 8 bit mode. I've found that on my system, I can get 150 MS/s. I'm curious about why it can't go faster than this. I'm not ...
by alowell
Mon Sep 02, 2019 8:48 pm
Forum: General Software Discussions
Topic: Minimize relay activity during development
Replies: 1
Views: 958

Minimize relay activity during development

Hi, I'm writing some software using the C picosdk. During the debugging process, everytime I start up my program I hear the relays in my 5444D. What can I do to minimize the relay activity during debugging so that I don't put excessive wear on the relays?