Normal status of boot0

[heejoo Moon]

Posted on November 28, 2017 at 06:16

Hi.

I have a question. I am using STM32L051 and I am wondering about the state of BOOT0 pin. When power is first applied, the boot mode can be proceed from the status of BOOT0 pin and nBooT1 After that, I wonder what happens when the input of BOOT0 is input.

[Nesrine M_O]

Posted on November 28, 2017 at 18:13

Hi

mhj1225@secu-line.co.kr

,

Please refer toBoot configuration section in your

http://www.st.com/content/ccc/resource/technical/document/reference_manual/21/bd/0f/bd/1c/88/40/f0/DM00108pdf/files/DM00108pdf/jcr:content/translations/en.DM00108pdf

-Nesrine-

[Tesla DeLorean]

Posted on November 28, 2017 at 18:32

One should pull the BOOT0 pin low externally to guarantee robust operation.

People have observed Hot vs Cold start issues with respect to the supplies ramping, and micro becoming sentient, and floating state of BOOT0 compared to VIL/VIH at that instant.