Christopher Saltonstall

Last seen: 2 dagar ago | Active since 2017

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Question

Run move and collect functions in parallel
I have a translation stage that I want to move over a set of positions. While the stage is moving I want to record data collect...

17 dagar ago | 1 answer | 0

1

answer

Question

How to open H.265 video?
I colelcted some video data that was compressed using h.265 and I am having trouble opening it with any video editor and Matlab....

5 månader ago | 0 answers | 0

0

answers

Question

Read/Write memory of Xilinx FPGA using Matlab and Vivado
I have a Xilinx Kintex 7 FPGA that is is connected via USB JTAG to my computer. I would like to read the memory of the FPGA. C...

mer än ett år ago | 1 answer | 0

1

answer

Question

Failed to download the third-party software: FTDI JTAG D2XX library
I am trying to install the HDL Verifier Support Package for Xilinx FPGA Boards. When I try to install through the add-on explor...

mer än ett år ago | 1 answer | 0

1

answer

Answered
Convert System.Decimal from C# .NET to double
load 'pos.mat' import System.* methodsview('System.Decimal') System.Decimal.ToDouble(pos)

mer än ett år ago | 0

| accepted

Question

Convert System.Decimal from C# .NET to double
I am communicating with a Thorlabs DC servo controller via .NET. When I query the motor position it returns the value in system...

mer än ett år ago | 2 answers | 0

2

answers

Answered
How to plot the 3D mesh created by meshgrid?
Here is an example of plotting data that was created using the "meshgrid" function of the attached data. You can also find the ...

mer än 2 år ago | 1

Answered
How can I turn time series data into a spatial map?
Answer: Use "griddata" and "meshgrid" functions as shown below. clear close all %% Get experimental data path = 'C:\'; ...

mer än 2 år ago | 0

| accepted

Question

How can I turn time series data into a spatial map?
Motivation: I am building a microscope to scan a laser across patterned surfaces to map the surface. The most intuitive method ...

mer än 2 år ago | 1 answer | 0

1

answer

Question

Read Binary Data from Keysight DMM
I am trying to read voltage measurements from a Keysight 34465A digital multimeter. When the data format is set to ASCII I can ...

mer än 2 år ago | 0 answers | 0

0

answers

Answered
How does binblockread work? How can I modify it to read multiple binary blocks simultaneously?
Solved in the attached script. clear close all %% USER INPUTS %voltage or current reading voltcurr = 'VOLT'; %binary...

mer än 3 år ago | 0

| accepted

Question

How does binblockread work? How can I modify it to read multiple binary blocks simultaneously?
I am trying to read the binary output of 4-channels from a Keysight N6705C power analyzer. In order to do this I query all 4 ch...

mer än 3 år ago | 1 answer | 0

1

answer

Answered
Use fscanf to Read Binary Data from Keysight Power Analyzer with Unknown Length
So, it turns out that "fscanf" should only be used to read ASCII data as described here. Instead "binblockread" or "readbinbloc...

mer än 3 år ago | 1

| accepted

Question

Use fscanf to Read Binary Data from Keysight Power Analyzer with Unknown Length
I am communicating with a Keysight N6705C Power analyzer and trying to read data from a buffer that is continuously collecting ...

mer än 3 år ago | 2 answers | 0

2

answers

Question

How to Select GUI axes?
Hello, I am trying to create a GUI where I load an image and then select points on the image using ginput. However, when I run...

mer än 4 år ago | 1 answer | 0

1

answer

Question

Make Network Licence Available Offline
I am currently using a license through my company that requires an active connection to our internal network to use. However, t...

nästan 5 år ago | 1 answer | 0

1

answer

Answered
How to use freqz to plot filter frequency response?
Its is because the frequency response, h, is a complex value. By plotting, plot(f,h) only the real (in-phase) component is pl...

nästan 5 år ago | 1

| accepted

Question

How to use freqz to plot filter frequency response?
I used systemIdentification to calculate the transfer function of my filter (see first figure) and then saved the idtf variable ...

nästan 5 år ago | 1 answer | 0

1

answer

Question

Determine filter function from input and output signals
I have an known input signal that I am putting through a "black box" resulting in an experimentally measured output signal. I w...

ungefär 5 år ago | 0 answers | 0

0

answers

Question

Plot with two related x-axes
This question may seem like it has been answered in the forums but I believe there is a subtlety that has not been directly answ...

ungefär 5 år ago | 1 answer | 0

1

answer

Question

How to fit built in filter functions
I have a signal (e.g. square wave) that I am passing through a "black box" resulting in a modified output signal (e.g. saw tooth...

ungefär 5 år ago | 0 answers | 0

0

answers

Question

Pass deviceObj between callbacks in app
I am able to make VISA-USB connection in one callback but want to maintain this connection and pass the device object between ca...

ungefär 5 år ago | 0 answers | 0

0

answers

Question

Parallel Computing with Command Line Scripts
I am using Matlab as a wrapper code to run a windows exe. Currently, I am writting input files for the exe with Matlab. Then w...

nästan 6 år ago | 0 answers | 0

0

answers

Question

Plot with 2 corresponding x-axes
This question may seem like it has been answered in the forums but I believe there is a subtlety that has not been directly answ...

nästan 7 år ago | 1 answer | 0

1

answer

Question

How to create gradient of randomly spaced data at each point of input array
I have a set of data, y, with non-uniformly spaced independent variable, x. I want to calculate the gradient of this data at ea...

nästan 7 år ago | 2 answers | 0

2

answers

Question

Create Legend From Array
Hello, I have an array nN = 6; N = 1:nN; I want to make a legend where nN changes and so may not be known ahead of t...

ungefär 7 år ago | 2 answers | 0

2

answers

Question

Matlab Hangs when Saving Surf to PDF
I am having trouble saving a surface plot as a pdf. This used to work for me just fine. However, now when I try, Matlab hangs ...

mer än 7 år ago | 0 answers | 0

0

answers

Question

Saving Pdf Surf Hangs
Hello, When I try to save a surf plot as a pdf Matlab hangs up and my disk usage jumps to 99% in task manager. However, when...

mer än 7 år ago | 1 answer | 0

1

answer

Question

How to create array of linearly spaced values from starting and ending points
Hello, I want to create an array (not vector) of linearly space points from a vector of starting and ending points. For exam...

mer än 7 år ago | 3 answers | 0

3

answers

Answered
Efficiently Read in Text file with Headers Throughout File
This solution works great if you know the length of data between headers. I had to write a code to determine this from the GULP...

ungefär 8 år ago | 1

| accepted