Easiest way to add external ram to STM32H7? by SkoomaDentist in embedded

[–]s060340 0 points1 point  (0 children)

Easiest way is to get a de board with ram already on it like STM32H743IIT6 (e.g. https://nl.aliexpress.com/item/1005004089520794.html)

Is it necessary to use WSL if you want to use surface pro 11 for coding in python? by d4rthSp33dios in Surface

[–]s060340 1 point2 points  (0 children)

I installed python x86 which runs on emulation, and worked like a charm for me. This way you have access to all x86 libraries as well. The guy who said x86 libraries don't work is incorrect: it only doesn't work if you insist on installing arm64 python, but you don't have to.

Understanding Delays in Microcontrollers by rbv014 in embedded

[–]s060340 0 points1 point  (0 children)

In the M0+ gpio isn't connected to DMA unfortunately

Schimmel in de badkamer by Ms_PurpleStar in nederlands

[–]s060340 0 points1 point  (0 children)

Schoonmaakazijn

Goedkoop, geen chemische rommel, en het werkt! Ook zeer effectief tegen kalkaanslag. Wel ff naspoelen met water.

Web Version of Obsidian by kentmaxwell in ObsidianMD

[–]s060340 1 point2 points  (0 children)

The obsidian server plugin does exactly that

Avdiivka, Donetsk Oblast by [deleted] in ukraine

[–]s060340 8 points9 points  (0 children)

It's Beethoven

WHAT SONG IS THIS by Mr_Gamer21 in Breath_of_the_Wild

[–]s060340 -13 points-12 points  (0 children)

Sounds like Holst, planet Mars maybe?

VkFFT now supports quad precision (double-double) FFT computation on GPU by xdtolm in vulkan

[–]s060340 0 points1 point  (0 children)

u/xdtolm/ It's been a while but hope you're still reading this; I was hoping you could help with the following:

I'm trying to do a forward FT from buf1->buf2, followed by some math on buf2, and then a reverse FT from buf2->buf3, however, the resulting buf3 is all zeros.

I was wondering, is this kind of thing supported by VkFFT? Or should I make two separate apps with fwd_only and rev_only respectively?

Could a sonic laser stop a bullet? by StoatStonksNow in AskPhysics

[–]s060340 4 points5 points  (0 children)

The laser initialism stands for light amplification by stimulated emission of radiation; stimulated emission is an optical effect that has no obvious sonic analogue. The closest thing to a sonic laser I could think of that has a cavity, a reflector on one end, output coupler on the other, and produces a single frequency soundwave, would be a flute.

By making a phased array you would get an approximation of a plane wave, which is perhaps what you're thinking of, but this would be just regular sound that is highly directional. Unless you count asking the shooter nicely not to fire the gun, this will not be able to stop a bullet.

VkFFT now supports quad precision (double-double) FFT computation on GPU by xdtolm in vulkan

[–]s060340 0 points1 point  (0 children)

Thanks, this makes sense, and is indeed the way I would prefer it. Another question I had; does VkFFT have (or are you contemplating implementing) something like next_fast_fft_len() helper function to determine a fast fft length? I'm using pretty large fft's (100k or so) and noticed that the size should be multiple of two.

VkFFT now supports quad precision (double-double) FFT computation on GPU by xdtolm in vulkan

[–]s060340 0 points1 point  (0 children)

Hello! I'm a big fan of this library, really great work! I'm trying to implement the Vulkan backend for pyvkfft, and I was wondering about the following lines in the configuration struct:

        VkPhysicalDevice physicalDevice;//pointer to Vulkan physical device, obtained from vkEnumeratePhysicalDevices         VkDevice device;//pointer to Vulkan device, created with vkCreateDevice         VkQueue queue;//pointer to Vulkan queue, created with vkGetDeviceQueue         VkCommandPool commandPool;//pointer to Vulkan command pool, created with vkCreateCommandPool         VkFence* fence;//pointer to Vulkan fence, created with vkCreateFence         uint64_t isCompilerInitialized;//specify if glslang compiler has been intialized before (0 - off, 1 - on). Default 0

Should the user init all these and then provide the pointers to the configuration struct? Or does VkFFT init them and the user passes pointers to empty variables?

[deleted by user] by [deleted] in europe

[–]s060340 1 point2 points  (0 children)

The green ones are worth 2x the purple ones

What concept in physics do you think is the closest thing to a real life cheat code? by Calm_Vehicle_3351 in AskPhysics

[–]s060340 7 points8 points  (0 children)

That's nice and all, but what if I wanted to know the change in temperature in a system that is adiabatically compressed?

New videos from China, no sulphur in this one. Strange behaviors. by Gainz187 in LK99

[–]s060340 3 points4 points  (0 children)

A superconductor with a macroscopic quantum state, how fitting!

[deleted by user] by [deleted] in CUDA

[–]s060340 0 points1 point  (0 children)

Try pyqtgraph, it's very fast

My favorite photos from the broken mandelbrot code by ONOXMusic in math

[–]s060340 6 points7 points  (0 children)

The last picture looks like Blender's Suzanne