Flash layout of an STM32F469IEH with 512kB Flash?

[andi z]

Posted on June 19, 2017 at 12:01

Hi,

we want to use the STM32F469IEH controller which has 512kB of Flash Memory. The Reference Manual does not show any Flash Layout of the 512kB Flash. I assume that it has the Layout of the 1MB Flash Memory with 1x512kB Bank.

Is that right?I need to be sure.

If not, what is the actual flash layout of this device?

It would be good, if this could be written into the next version of the Reference Manual.

Kind regards

Andreas

[Tesla DeLorean · Accepted solution]

Posted on June 19, 2017 at 14:48

It is exactly the same as the 1MB part, just less 128KB blocks on the back end

ie 4x16KB, 1x64KB, and 3x128KB

[andi z]

Posted on June 19, 2017 at 14:55

hi,

thanks for reply!

kind regards

Andreas

[Jaroslaw Karwik]

Posted on August 10, 2017 at 17:39

One more question - as manual ommits the details.

Does it still support dual bank operations ?

[Brian TIDAL]

Posted on August 11, 2017 at 11:19

Hi,

the Dual Bank bit in

http://www.st.com/content/ccc/resource/technical/document/reference_manual/29/77/09/5a/b1/60/4e/bd/DM00127514.pdf/files/DM00127514.pdf/jcr:content/translations/en.DM00127514.pdf

seems to be dedicated to 1 Mbyte Flash memory devices (DB1M). In a nutshell:

• 2 Mbyte Flash memory devices have de-facto a dual bank organization,
• 1 Mbyte Flash memory devices can be configured as single bank or dual bank thanks to DB1M bit,
• by deduction, 512 Kbytes Flash memory devices are single banked.

With STM32 ST-LINK Utility,  'Target/Option Bytes...' menu can be used to read/write the STM32 options bytes. The DB1M option byte should be grayed (as well as the BFB2 option byte) for STM32F469IE.

Kind regards

Bruno