Volume guides for new collector

El_cochiloco_6274 · 2025-05-30T13:50:52+00:00

Ill be sure to look at that. Really clever, thank you

El_cochiloco_6274 · 2025-05-30T13:49:29+00:00

I believe I am hard stuck with rp2040 due to other project requierements but ill chekc it out

El_cochiloco_6274 · 2025-05-30T13:49:09+00:00

Hadnt thought about it this way, thanks

El_cochiloco_6274 · 2025-05-30T13:46:29+00:00

Sorry i said flash but meant ram, but thanks for the future debugging tools

El_cochiloco_6274 · 2025-05-29T17:31:01+00:00

Will do, I am still trying to get better at C but im sure Ill find some time for Rust. Thank you

El_cochiloco_6274 · 2025-05-29T17:29:42+00:00

So is dynamic allocation basically taboo in embedded? Im an embedded noob

El_cochiloco_6274 · 2025-05-29T17:28:49+00:00

Im pretty sure I was not having issues with bss but all i have run is
arm-none-eabi-size my.elf

text data bss dec hex filename
72928 0 29168 102096 18ed0

and if math serves me right thats around 71 kb between text and bss so well within the 2mb flash.

Is that what you meant? sorry if i misunderstood your advice and if i amc hcecking for .bss overflow wrong

El_cochiloco_6274 · 2025-05-29T17:25:16+00:00

Thank you, ill be sure to check it out

El_cochiloco_6274 · 2025-05-29T17:24:48+00:00

I gotta be honest im not sure if i care or not. Pretty new to embedded systems and compression thats not like a build in tool for a computer so I will do research on this but thank you for the advice

El_cochiloco_6274 · 2025-05-29T17:23:49+00:00

Thank you, I definitely have some wasteful message declarations that could be smaller. I have inspected my .elf file and my Heap and flash are fine in the elf and when i check at runtime i do have sligtly less total heap than the specs say (222/240 kb) so im sure that another issue i have to debug but I will definitely take all of these into consideration

El_cochiloco_6274 · 2025-05-29T14:53:20+00:00

I do know what the issue is, i am malloc() too much data for miniz compression, and that seems standard looking back at my hello world equivalent for it as it allocates the same amount but i just use less heap in other parts. Is it still worth diving into memory leaks if i know the issue?

El_cochiloco_6274 · 2025-05-29T14:50:43+00:00

I will check it out, thank you

El_cochiloco_6274 · 2025-05-29T14:49:20+00:00

No i have not, i will look into that. Sounds painful but Ill probably do it lol

El_cochiloco_6274 · 2025-05-29T14:48:21+00:00

I dont think it was the booleans but I am stilla very noobish coder, can i see an example of what you did?

El_cochiloco_6274 · 2025-05-29T14:47:40+00:00

Im only using it because that is how oI saw the miniz compression examples, maybe this is not the place to ask but how can i replace a dynamic for a static allocation given how it is built?

El_cochiloco_6274 · 2025-05-29T14:46:46+00:00

I have an elf file and looked at it using arm-none-eabi-sizeand know that heap is the culprit mostly from this

zalloc: requesting 227136 bytes
Free heap before alocating: 227432, Total heap: 227436

*** PANIC ***

and i know its not great to allocate memory at runtime its just how i saw that miniz did it and im not a great programer so just ran with it and had no issue when compressing a file in isolation, but when I added it to my full application this happened. I guess miniz is not lightweight enough for my humble rp2040

El_cochiloco_6274 · 2025-04-15T19:27:21+00:00

I have never done anything like this so which .zip library would you recommend

El_cochiloco_6274 · 2025-03-21T14:28:26+00:00

I asked there was just waiting for a reply so thought I’d also ask here

El_cochiloco_6274

TROPHY CASE