Flash ReadOut Protection Problem

Posted on May 17, 2011 at 12:49

Dear jilisegiar, thank you for your response.

I tried to use it, but occur error ''No response from the target, the Bootloader can not be started. ....''.

Please help me.

Posted on May 17, 2011 at 12:49

I set read-out protect falsh by FLASH_ReadOutProtection(ENABLE) ;

, then my code not work .

So i can't Un-protect it.

In datasheet say follow.

''Once the protection byte has been programmed to a value:

Main Flash memory read access is not allowed except for the user code (when booting from main Flash memory itself with the debug mode not active).

....''

Why my code not work?

I am sorry.Please help me.

Posted on May 17, 2011 at 12:49

Dear heavelove, thank you very much.

I finally succeed.

Thank you from my heart.

There is a question.

If I set read-out protect the flash, then my code not work.

In datasheet say follow.

''Once the protection byte has been programmed to a value:

Main Flash memory read access is not allowed except for the user code (when booting from main Flash memory itself with the debug mode not active).

....''

Why my code not work?

I am sorry.Please help me.

Posted on May 17, 2011 at 12:49

Before use ISP, the Bootloader inside stm32f must run first.

See AN2606 to find out how to assert BOOT0 and BOOT1.

Cheers!