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KMin .1
KMin .1
Associate II
February 9, 2023
Solved

STM32F412RE Flash 512KB OVER SIZE?

HI.

The STM32F412RE flash memory size is 512 kB.

Why 1024 KB is accessible.

write and read successfully.?

0693W00000YAJaOQAX.png​

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FBLBest answer
ST Technical Moderator
February 9, 2023

Hello @KMin .1​ 

Even if you are able to use 1024KB of flash on STM32F412RE, only 512kB is tested by ST. So we cannot guarantee the behavior in the whole 1024KB of the flash.

When your question is answered, please close this topic by choosing Select as Best the answer that answered your question or solved your problem. This will help other users find that answer faster. 

To give better visibility on the answered topics, please click on "Best answer" on the reply which solved your issue or answered your question.Best regards,FBL
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2 replies

KnarfB
KnarfB
Super User
February 9, 2023

Probably the same die as similar MCUs with more flash, but not fully functional / tested under all conditions.

hth

KnarfB

FBLBest answer
ST Technical Moderator
February 9, 2023

Hello @KMin .1​ 

Even if you are able to use 1024KB of flash on STM32F412RE, only 512kB is tested by ST. So we cannot guarantee the behavior in the whole 1024KB of the flash.

When your question is answered, please close this topic by choosing Select as Best the answer that answered your question or solved your problem. This will help other users find that answer faster. 

To give better visibility on the answered topics, please click on "Best answer" on the reply which solved your issue or answered your question.Best regards,FBL
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