ST-Link + Level 1 read protection = bricked?

gbigden · ‎2016-01-28

Posted on January 28, 2016 at 14:18

Using IAR EWARM with ST-Link.

I just set the protection level to Level 1 and now I cannot get in again to change the RDPRT bits back to Level 0

Any suggestions?

#stm32f303x-read-protection

pkumar1883 · ‎2016-01-28

Posted on January 28, 2016 at 15:00

Just try USART Boot loader and see if it is working. Level 1 protection can not brick it, could be some other reason.

gbigden · ‎2016-01-28

Posted on January 28, 2016 at 15:13

Unfortunately I do not have access to the USART bootloader pins. Looks like I will have to replace the chip on the board.

Amel NASRI · ‎2016-01-28

Posted on January 28, 2016 at 15:15

You can also use

http://www.st.com/web/en/catalog/tools/PF258168

to update protection level and come back to Level0.

-Mayla-

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gbigden · ‎2016-01-28

Posted on January 28, 2016 at 15:37

Thanks! Works perfectly! I am going to add a ''suicide'' command to my prog to change the Level 1 bits to Level 0 to enable me to do this easily from the PC app interface.