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8 Byte stack align in interrups (vs. 4 byte)

Hi. I realize this may seem simple to some of you but i realy want to undestand this as easy as it is possible. In STM32 (for example) there is a bit called STKALIGN. If this bit is set stack is align to 8 byte instead of 4 byte.How can i see differ...

sholojda by Associate III
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  • 10 replies
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Resolved! atanf function not working?

Can anyone tell me why the value of 'c' here should be NaN ??On other platforms I get the same result for 'a' and 'c', as expected.#include <math.h>   float a = atanf( -1.0f ); // returns -0.785398185   float b = -1.0f; float c = atanf( b ); // retur...

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iforce2d by Associate III
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  • 8 replies
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Resolved! how to interface eMMC memories using STM32f4xx ??

good afternoon.I was gonna drive an eMMC flash memory ( something like https://www.samsung.com/semiconductor/estorage/emmc/KLM8G1GEND-B031/ ) with my STM32f407IGT6.I don't know if I can access it through the SDIO peripheral or not. it is mentioned in...

Sfarb.1 by Associate II
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  • 5 replies
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How to determine CPU load stm32h743?

Hi.I need to estimate the cpu load and output the data as a percentage to a variable ram and to an LED. I use stm 32h 743. The microcontroller works without sleep. It is advisable to make accounting and interruptions. Can you suggest a solution?

F103: User Flash program runs happily despite BOOT0=1

I would assume it should start the system bootloader. Instead, my app which is blinking a heartbeat runs happily.When I put also BOOT1=1, system should boot from SRAM and because nothing's there, the LED should remain off. Which it does.So why does m...

Peta_rj by Associate II
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  • 2 replies
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Resolved! STM32F072RB part no unavailability.

I am looking for STM32F072RB part no but currently it is out of stock and not available anywhere. Can somebody provide alternative part no which is available easily.Please share the source details .Any help would be helpful. Thank you. 

STAR by Associate II
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  • 2 replies
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