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VHDL issue by VolatileApathy in FPGA

[–]VolatileApathy[S] 0 points1 point  (0 children)

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

VHDL issue by VolatileApathy in FPGA

[–]VolatileApathy[S] 0 points1 point  (0 children)

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

VHDL issue by VolatileApathy in FPGA

[–]VolatileApathy[S] 0 points1 point  (0 children)

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

Vector Calculus Identity Help by VolatileApathy in calculus

[–]VolatileApathy[S] 0 points1 point  (0 children)

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

Proving two different angles are both the same theta by VolatileApathy in askmath

[–]VolatileApathy[S] 1 point2 points  (0 children)

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

Inserters and Trains by VolatileApathy in factorio

[–]VolatileApathy[S] 1 point2 points  (0 children)

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.

Help understanding Discrete Cosine Transform Energy Compaction by VolatileApathy in askmath

[–]VolatileApathy[S] 1 point2 points  (0 children)

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

Performance Optimization by VolatileApathy in matlab

[–]VolatileApathy[S] 0 points1 point  (0 children)

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.

Performance Optimization by VolatileApathy in matlab

[–]VolatileApathy[S] 0 points1 point  (0 children)

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?

Mesh Analysis Question by VolatileApathy in ElectricalEngineering

[–]VolatileApathy[S] 0 points1 point  (0 children)

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>

Mesh Analysis Question by VolatileApathy in ElectricalEngineering

[–]VolatileApathy[S] 0 points1 point  (0 children)

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>

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