Question - Anyone knows the reasons for huge memory differences?

[xDuinoRails]

Good evening everybody,

Just out of curiosity I compared the size of the same Arduino Sketch (NmraDccAcessoryDecocer). The results are surprisng:

Microcontroller	FLASH	RAM
Arduino UNO	6'854	388
STM32F3	30'120	3'656
RP2040	66'524	9'996
RISC-V (ESP32-C3)	294'574	12'556

Any ides why there are such huge numbers?

[kiwi64ajs]

I expect everything except the Arduino UNO will have a full version of FreeRTOS, and who knows what else (maybe a full Wi-Fi TCP/IP Stack) will be included by default. You’d have to dump out the memory map to better understand what is in there… It is probably the same reason why Turbo Pascal used to fit in 39kb of RAM on a Z80 back in the day, and now, who knows how many GB or RAM it needs to run on a Windows PC… There isn’t much incentive to optimise the RAM/FLASH resource usage on these newer chips, so it's probably not got much attention. Alex

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On 20 Nov 2024, at 11:24 AM, xDuinoRails ***@***.***> wrote: Good evening everybody, Just out of curiosity I compared the size of the same Arduino Sketch (NmraDccAcessoryDecocer). The results are surprisng: Mikrocontroller FLASH RAM Arduino UNO 60854 388 STM32F3 30120 3656 RP2040 66524 9996 RISC-V (ESP32-C3) 294574 12556 — Reply to this email directly, view it on GitHub <#86>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AB5Y53IKHNGFQIG3H5AME3D2BO3CBAVCNFSM6AAAAABSDF774KVHI2DSMVQWIX3LMV43ASLTON2WKOZSGY3TGNZRGI4DKNY>. You are receiving this because you are subscribed to this thread.

[xDuinoRails]

Thank you, if I find out more, I will post it here.