Function of BOOT

[waldin80]

Posted on July 28, 2010 at 16:21

Function of BOOT

#bootloader

[swhite2]

Posted on May 17, 2011 at 14:00

http://www.st.com/stonline/products/literature/an/13801.pdf

[jpeacock23]

Posted on May 17, 2011 at 14:00

After a reset the BOOT pins determine what section of memory is used for startup.  You can select user flash, system bootstrap, or RAM.  BOOT0 is hardwired but BOOT1 can be used as a GPIO (with some restrictions) after the reset completes.  That's why you usually see external pull up/down resistors on the BOOT lines.

The STM32 datasheets go into detail on how BOOT pins work.

  Jack Peacock

[waldin80]

Posted on May 17, 2011 at 14:00

Thks for the help dudes, take care