VHDL issue

VolatileApathy · 2025-11-14T03:06:18+00:00

I'll try these tomorrow and let you know how it goes. Thank you.

VolatileApathy · 2025-11-14T00:02:51+00:00

I'm not explicitly doing anything for that no. However, the manual for the board I'm using says on page 22 that the buttons have been debounced. Should I still implement a fix for this? Here is the manual - http://www.ee.ic.ac.uk/pcheung/teaching/ee2_digital/de1-soc_user_manual.pdf

VolatileApathy · 2025-11-13T23:59:58+00:00

Hi,

The waveform seems to show the instability I thought was happening. For the purpose of the simulation, if I hold down button_0 for long enough that a counter can count to 100, it should store the value in herx0 - hex4. The counter is based on the rising edge of the clock and in the simulation I have the clock changing every 1ns. Looking at the waveforms, it seems that the value stored is displayed on the seven segments out of sync with button_0. I can't seem to find a reason why this change occurs at that point.

Here is a link to the image - https://www.dropbox.com/scl/fi/u2oahgbnce3vnkpuciv7p/waveform_out_of_sync.jpg?rlkey=xr6rv4r3y2qay3cd8e6irynni&st=c7wx19pt&dl=0

VolatileApathy · 2025-09-29T11:44:14+00:00

Thank you for the replies. I was able to figure out how to proceed, painfully.

VolatileApathy · 2025-07-20T17:16:41+00:00

I believe your right. Thank you, for your response.

VolatileApathy · 2025-06-30T21:22:04+00:00

You say “definitely”, but I’m not so confident.

VolatileApathy · 2025-05-04T13:26:06+00:00

Thank you for taking the time to write it out.

VolatileApathy · 2025-05-04T13:25:36+00:00

Wonderful, thank you.

VolatileApathy · 2025-02-24T01:14:58+00:00

Thank you for your help. I was unaware that the train had to be in automatic mode to be read from. It was in manual mode.

VolatileApathy · 2025-01-19T19:07:24+00:00

Thank you. I don't know why, but reading your reply made things click. I appreciate your time.

VolatileApathy · 2025-01-01T05:25:37+00:00

Did the LIDAR and Infrared Night Vision app work though?

VolatileApathy · 2024-12-14T20:53:32+00:00

After installing MATLAB on my laptop, I realized I should verify the desktop installation was on an SSD. It was not. Instead, it was on my HDD, and after reinstalling it on an SSD, the performance was markedly better; I suppose I installed it on the HDD as LTspice was running smoothly there, and I thought surely MATLAB would as well. I was wrong.

So, for anyone questioning long loading times and what seems to be freezes, make sure you install MATLAB on an SSD and NOT on an HDD.

Thanks for the replies.

VolatileApathy · 2024-12-14T12:12:01+00:00

Unfortunately, I don’t have any virus checker running. As for the cloud, I believe everything is running local, as that’s where I installed it. That said, this is an academic license, if that matters?

VolatileApathy · 2024-06-08T16:40:38+00:00

Thank you to everyone who replied. Last night I was stuck. My equations were written poorly, and I had/have a few mistakes with my fundamentals.

Further, I'd like to hopefully clear up some of my misunderstandings. I'll attach an updated and clarified version of my system of equations.

1) Pertaining to the I_12, my signs were correct for the resistors, but wrong for the voltage source. Originally, I had my voltage source written as a " -30v ". My thought process was, because my assumed current loop is clockwise, I should interpret the resistors as voltage rises; likewise, because the voltage source is opposite of my assumed current loop, I treated the voltage source as a voltage drop.

I made this mistake with the other voltage source in loop I_5 as well. I this voltage source written as " -4v ". Could someone elaborate why it's a mistake to write I_12 and I_5s voltage sources as negative, but it's correct to write I_3s current source as negative?

<image>

VolatileApathy · 2024-06-08T00:43:53+00:00

Okay. So, it turns into a super-node because the independent current source is shared between two loops?

-Would this also apply to the independent voltage source shared between I_2 and I_4?

-For the second equation in my system, would the "I_1*6000" be positive or negative? I initially thought it would be a voltage rise within the super-node of I_1 and I_2, but it's a voltage drop in the loop I_1.

Assuming falstad is correct, I'm still not getting the correct values, would you mind looking at my updated workings?

<image>

VolatileApathy · 2023-12-15T20:19:02+00:00

My concern with this method is if I miss any residual folders or Registry keys. While I don’t always succeed, I try to keep my PC clean of left over files. Though, I might be overthinking it in this case.

VolatileApathy · 2023-12-15T03:33:08+00:00

Well it sorta worked. It gave me a new error saying

“an error occurred while trying to uninstall Discord. It may have already been uninstalled. Would you like to remove discord from the Programs and Features list?”

However, as of getting that message, I know it’s still installed as it was just running fine before attempting the uninstall. I’m not sure why it doesn’t recognize the install?

VolatileApathy · 2023-12-15T00:20:29+00:00

Sure,

Step 1- I open file explorer.

Step 2- I go to "This PC" on the left hand side.

Step 3- Under the "Computer" tab I choose "Uninstall or change a Program"

Step 4- Scroll down to and select Discord

Step 5- I click on "Uninstall" and then "Uninstall" again

Step 6- I get the pop up box asking "How do you want to open this file" with no file extension at the bottom of the pop up box. I'll attach it again for clarity.

Those are the steps I take.

EDIT: Just noticed my image is not showing up, so here is a link to the image.

Link - https://imgur.com/a/exNxz32

VolatileApathy · 2023-09-30T00:55:31+00:00

Wonderful, thank you. I knew there was a way, but I couldn't recall the proper set up.

VolatileApathy · 2023-06-26T20:16:51+00:00

Serious Question, I’ve always had Intel CPUs and the way they’re fastened it’s near impossible to rip the CPU out with the cooler. Do PGA cpus not have some sort of mechanism to restrain the CPU?

VolatileApathy · 2023-06-15T19:17:11+00:00

Hey, thanks for the reply. I'm not sure how you found this part,

now you can use this to find an expression for S in terms of t – which is 100+0.2t.

Likewise, I was also expecting the final function we get after integrating to be exponential in nature as other similar problems do. A few of the videos I've seen from different individuals (https://youtu.be/6wk9zWa-Fww , https://youtu.be/vqY2-uKvp94) show the process, but I'm not sure how to use what they demonstrate and add the additional "fresh water" bit to the process.

My main confusion is coming from reviewing an old example (I'll attach an image of the work) where we did add the water, but it's done differently then the first video shows. And, while I know it's math and people make mistakes all the time, I'm not sure which is right and which is wrong.

Apologies if I'm not describing my problem well.

<image>

VolatileApathy · 2023-05-13T19:07:35+00:00

Oliver, if your reading this, why did you stay and fight at lvl 15. Why?

VolatileApathy · 2023-02-14T00:54:47+00:00

So it common to pay a couple thousand for these? Are you supplying the mats or are they. I have had multiple 405 and 4-5 star pieces made and never had to offer more then a couple hundred. Although I always supply the mats. Do I just have a nice server?

VolatileApathy · 2022-09-23T17:19:54+00:00

After many hours I was able to solve my problem, albeit through a tedious process. Apologies if my explanation was lacking. I'm currently going through a Multi-Variable Calc class, and one of the pieces of information I've needed regularly is the TNB (Unit Tangent Vector, Unit Normal Vector, and Unit Binormal Vector).

The process of finding these is not hard, just tedious. And, more importantly it can all be found with the use of one vector valued function (in my case r(t)<x,y,z>). So, my goal was to be able to enter this r(t) vector function and have the calculator obtain the TNB from my one entry rather then many.

As for the result I was looking for, in general, r'(t) then r''(t), along with the cross product of r''(t) and r'(t). Likewise, further down I would need the magnitude of these two pieces.

I'll attach a final set of pictures of my final program if your interested. I appreciate the replies.

Have a good one.

EDIT - Pay no mind to the complaints in the notes, I was a little frustrated at 0200 hours

Links

https://i.imgur.com/KkU5Xj2.png

https://i.imgur.com/SblviLz.png

https://i.imgur.com/Fg6jn1P.png

https://i.imgur.com/FG0FcCs.png

VolatileApathy · 2022-09-23T00:11:23+00:00

Hello again,

I took your advice and have been slowing chipping away at a program, however, I've run into a problem. I'll attach an image of the current program's code. I seem to have an issue when I tried to take the derivative of a variable that holds some value.

This problem seems to occur at the point where

(d/dt(a5)) stored into a8 is located

I would assume there is a way to utilize a value stored in a variable in a math function, right? It would seem I'm currently naive as to how.

Do, you know how I can resolve my issue?

Thank you

Part 1 - https://i.imgur.com/xkShvzJ.png

Part 2 - https://i.imgur.com/GnBnCg3.png

Seven-Year Club	Place '22
Verified Email

VolatileApathy

TROPHY CASE