Gavin

Washington University in St Louis

Last seen: 11 jours il y a | Actif depuis 2024

Followers: 0 Following: 0

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Programming Languages:
C++, C, MATLAB, Arduino, Assembly
Spoken Languages:
English
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Question

Table with multiple types
I'm trying to use a ui table of 2 columns, one of chars, and the other uint32. Seems like it used to work. Now it fails badly an...

environ un mois il y a | 3 réponses | 0

3

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Random lags while running app
Here is an interesting update Running on 2025 (a or b) while slightly slower is much more consistent. It takes 600-800ms to star...

environ 2 mois il y a | 0

Question

uigetfile filter error with 2025a works fine in 2024b
I use uigetfile to open various types of files for my users mostly txt, but I want to be more specific. for example [infile, a...

2 mois il y a | 1 réponse | 0

1

réponse

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Restart a USB connection
See this same issue with a solution here https://www.mathworks.com/matlabcentral/answers/2173049-how-do-i-reconnect-usb-serial-...

2 mois il y a | 0

Question

inputdlg() now crashes.
My program has been running fine for months. I updated Windoze 11 as MS kept bugging me to do and now inputdlg() doesn't work. A...

5 mois il y a | 1 réponse | 0

1

réponse

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Random lags while running app
Turns out it takes a LONG time to update a graph. I moved the screen updates to happen AFTER the start of the next trial and th...

5 mois il y a | 0

| A accepté

Question

Configure a callback in App Designer to be non-interruptable
I'm using USB connected Arduino device and have the following line: configureCallback(app.PicoCom,"terminator",@app.PicoInput);...

6 mois il y a | 1 réponse | 0

1

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Small change in App Designer program and now it crashes App Designer
Good riddance to etchedin!

6 mois il y a | 0

| A accepté

Question

Random lags while running app
I have an App Designed application that collects data from an Arduino Pico. The Pico runs individual trials with accurate to su...

6 mois il y a | 3 réponses | 0

3

réponses

Question

istable() returns false for my table
I create a table under certain conditions, later want to check if it is a table yet. Checking in the command window I get this ...

6 mois il y a | 1 réponse | 0

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Question

Small change in App Designer program and now it crashes App Designer
I made a few changes to my program and now this version won't load properly. It crashes App Designer so I can't close it without...

6 mois il y a | 1 réponse | 0

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Question

App Help Text can not be edited
When I do a Save As... (to create a new version of my app. in App Designer, it now (since 2023?) asks to reload as if it was bei...

7 mois il y a | 1 réponse | 0

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Question

Incoming USB characters lost
I have an Arduino Pico connected to MATLAB and I use Terminated (CR/LF) trigger to read the input. Each message is about 10 to 1...

8 mois il y a | 1 réponse | 0

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Question

How do I make EditText HorizontalAlignment to the right work?
Why can't I ask my question: How do I make EditText.HorizontalAlignment = 'right' work? Description is blocked from being us...

11 mois il y a | 1 réponse | 1

1

réponse

Question

Why is trailing back space removed from my folder name?
I have a subfolder named .\results (I give the whole name) Allowing the user to change it I have name app.defOutLoc as default ...

11 mois il y a | 1 réponse | 0

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Question

Detecting a serial port valid after disconnect/reconnect
I asked before with a long question and got no answers, so let's keep it simpler. Serial port is connected to Arduino Arduino ...

11 mois il y a | 1 réponse | 0

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Question

How do I reconnect USB serial that gets lost programatically.
MatLab R2024b using AppDesigner on Windows 10 Enterprise My GUI app connects to an Arduino which sometimes looses it's connecti...

12 mois il y a | 1 réponse | 1

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Question

How can I keep my app in front on the screen?
When certain functions are called such as uigetfile() or uigetdir() after the file or directory is chosen the AD generated app g...

environ un an il y a | 1 réponse | 0

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Question

App Designer 2024b broken
I was fine using AD in 2023b but now with 2024b I'm finding weird things. Asking if anyone else has seen these issues. (I also r...

environ un an il y a | 1 réponse | 0

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Question

Not enough trace back to find error
Apparently I have {} where I should have () I guess. I get this warning but the traceback list doesn't go far enough to find my ...

environ un an il y a | 1 réponse | 0

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Question

Short Pause doesn't come back
Using App Designer I was running my program with no breakpoints set. Suddenly it stopped running in a place it shouldn't so I b...

environ un an il y a | 1 réponse | 0

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Question

Delete a timer object in it's callback
I have short timer callbacks to change a color from a button press or other action back to it's original color. This gives a nic...

environ un an il y a | 2 réponses | 0

2

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Réponse apportée
Why did CD folder; give such a goofy error message when I just forgot ()
All good answers and I would have retracted the question once I noticed I'd forgotten the () Of course cd (apploc) is what I wa...

plus d'un an il y a | 0

| A accepté

Question

Compare char data in a cell {'x'} to a character 'x'
I want to find what's in my table that's in a category column 1 If you read through you will see what I tries and how I finally...

plus d'un an il y a | 3 réponses | 0

3

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Question

Why did CD folder; give such a goofy error message when I just forgot ()
It works other places but suddenly I can change directory K>> apploc apploc = 'C:\Users\CPSLab\Documents\OdorChoiceDev\' ...

plus d'un an il y a | 2 réponses | 0

2

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Question

How do I do char2num (assume Ascii)?
num2 char is easy enough num = char(122) returns 'z' ; but how can I get back to the ascii value from a char? Do I really have ...

plus d'un an il y a | 1 réponse | 0

1

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Réponse apportée
Error in MatLab's own routine.
Confusion between {} () and [] and when to use commas between elements and if they need quotation marks or not and if so ' ' or ...

plus d'un an il y a | 0

| A accepté

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USB callback "terminator" fails to trigger a read when messages are close together
See answers to other ways I asked this question and related issues https://www.mathworks.com/matlabcentral/answers/2152950-in-a...

plus d'un an il y a | 0

| A accepté

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How to develop a FIFO Circular Buffer for analyzing real-time data?
For a simpler case of needing a circular buffer to process USB or other irregularly timed input, try this: Initialize the buffe...

plus d'un an il y a | 0

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In App Designed app: When does a function called within another function spawn a new thread?
See where @Umar laid it out very well my related issue and provided several solutions to that part of the problem https://www.m...

plus d'un an il y a | 0

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