No Flash size register on STM32F2xx?

[Uwe Bonnes]

Posted on October 17, 2011 at 12:26

STM32F2xx reference manual

Doc ID 15403 Rev 3

doesn't list a Flash size register in chapter

33 Device electronic signature

Is there really no such register?

#missing-functionality

[crnmo2]

Posted on June 22, 2012 at 00:05

There is and it is listed in section 33.2 of rev 4 of the document. But it is wrong.

The document claims that it is 0x1FFF 7A10, but that is the same as the unique id.

My FAE claims that it is a 16 bit value located at 0x1FFF 7A22. 

[Tesla DeLorean]

Posted on June 22, 2012 at 01:18

All the die current shipping for the 205 have 1MB of flash, I've tested a number of parts marked as only having 256KB where all 1MB appears to be reasonably viable.

The 215 parts are only sold as 512KB and 1MB, again no doubt sharing an encryption enabled die.