How can I read from Main-Flash while running from Boot-Flash

[sebastian239955_stm1_st]

Posted on May 11, 2009 at 09:45

How can I read from Main-Flash while running from Boot-Flash

[sebastian239955_stm1_st]

Posted on May 17, 2011 at 11:52

Hi,

I am trying to read the flash content of the Main-Flash during boot-up (IAP - boot code is located in Boot-Flash).

Purpose of my question: I need to create some sort of check sum for the content of the Main-Flash.

I managed to switch from Boot-Flash to Main-Flash and vice versa, erease of the Main-Flash is also working. If I write a byte to the Main-Flash using the Polling-Mechanism for verifying it seems that the writing was ok.

But if I try to read a byte manualy I only read ''trash''.

Any hint is welcome.

Best regards

Sebastian