Others: STM32 MCUs related

Find out more about STM32 implementations with external components, discuss use cases, and discover how to use new tools and ST components.

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Resolved! Writing float to EEPROM

Hello Guys, I have a AT24CM02 EEPROM which uses I2C to communicate with a STM32H7 MCU. I need to store some float values into the EEPROM, but I do not know how. I appreciate any suggestions. Thank you and best regards, Vouria

VYoun by Associate III
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Dividing flash sectors on stm32f746

Hi,Is there any way to divide flash sectors into smaller parts? I have to store data into the flash and want to be able to delete it when I want. Currently, I am using two sectors for that purpose and when I want to erase some data copying whole data...

Clock Held Low Using DMA

Hello everyone, im currently studying DMA on STM boards, and im trying to send I2C messages from a mcu SLAVE (arduino) to STM32F407VET6 master, but both SCL and SDA lines is held low, it doesn´t happen when im using I2C in polling or interrupt mode, ...

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Hello Everyone. I am working on STM32F103VG controller and trying to code for I2C based EEPROM IC (AT24CM02). I am facing some issues with writing and reading EEPROM.

I want to save 2 strings of 127 bytes of data in 1 page. 1 page is 256 bytes each. Whern I try to read and write 127 bytes of 1st string, it works successfully. But when I try to append 127bytes of 2nd string,it does not read and write data properly....

sne_123 by Associate III
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Im trying to learn how to use the STM32 Discovery kits, the STM32F469NI DISCO, by the IAR 8.50.1 . I added a code from the internet that should make the leds blink, but i got some errors

Fatal Error[Pe035]: #error directive: "Please select first the target STM32F4xx device used in your application (in stm32f4xx.h file)" C:\Program Files (x86)\IAR Systems\Embedded Workbench 8.4\arm\src\flashloader\ST\FlashSTM32F4xx\inc\stm32f4xx.h 80 ...

Smaud.1 by Associate II
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Firmware for STM32F401CC6

I got an STM32F401CC6 blackpill module.I tried to upload via Arduino IDE the demo project blink.After succefull upload the board does not work.It lights only the red led and not the blue one.Is there any way to recover it?Thank you ,Yannis

YXidi.1 by Associate II
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EEPROM Reads only last Write Value

Im working on stm32l4 series ,using external eeprom , eeprom writes four variables in 4 EEPROM addresses succesfully,but while reading EEPROM it only reads last (4th) variable on all 4 EEPROM address,Im try all methods adjusting delay ,EEPROM addre...

PMOHO.1 by Associate II
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Timestamp with can_message.h is not working

I try to use the timestamp function from can_message.h to know the timestamp of a message received on the CAN.But the value is every time 0. Is it a knowed bug?Because I use this function with another hardware without problem.With STM32 I'm not able ...

TGIRA.1 by Associate II
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