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Store values in internal flash

GauravK
Senior

Can variable values be stored in some fixed addresses of internal flash and retrieved from them after reset? 

is there any example for same.

1 ACCEPTED SOLUTION

Accepted Solutions
6 REPLIES 6
Uwe Bonnes
Principal III

You can write to erased memory cells. This must happen in chunks, e.g. 256 bits on H7 and down to single bytes on some older families. If the retrieved value needs to be reporgrammed later, look for EPROM emulation.

Andrew Neil
Evangelist III

@Uwe Bonnes wrote:

You can write to erased memory cells. 


@GauravK for more on this, see:

https://community.st.com/t5/stm32-mcus-products/flash-write-versus-erase-cycles/m-p/665631/highlight/true#M241948

and follow the link.

I will be checking and get back if needed

Akuma.6
Associate III

Hi,

I am working on STM32G0 series and trying to save the records (120bytes each record) into internal mcu flash memory location and when it required will read the read the stored records and do our operations.

Please let us know the logic.

Regards,

Kumar

 

See the links posted earlier!

Some more info here - including links to some other implementations:

https://community.st.com/t5/stm32-mcus-embedded-software/eeprom-emulation-virtual-addresses/m-p/675788