Can not make RDP work in STM32F429i_Disco

[Linda]

Posted on March 19, 2015 at 13:38

I can not make RDP work in STM32F429i_Disco

My code is: ~~~~~~~~~~~~~~~~~             FLASH_OB_Unlock();             FLASH_OB_WRPConfig(FLASH_WRP_SECTORS, DISABLE);             FLASH_OB_WRP1Config(FLASH_WRP_SECTORS, DISABLE);             if (FLASH_OB_Launch() != FLASH_COMPLETE)             {             while (1)             {             }             }             FLASH_OB_RDPConfig(OB_RDP_Level_1 );             if (FLASH_OB_Launch() != FLASH_COMPLETE)             {             while (1)             {             }             }                          FLASH_OB_WRPConfig(FLASH_WRP_SECTORS, ENABLE);             FLASH_OB_WRP1Config(FLASH_WRP_SECTORS, ENABLE);                          if (FLASH_OB_Launch() != FLASH_COMPLETE)             {             while (1)             {             }             }                          FLASH_OB_Lock(); ~~~~~~~~~~~~~~~ Please have a look. Thanks

[Tesla DeLorean]

Posted on March 19, 2015 at 15:44

Focus on the RDP, and not the WRP then. Doesn't FLASH_OB_Launch() reset the processor? Make all your OB related changes, then do the Launch.

[Linda]

Posted on March 19, 2015 at 18:59

It works now, thanks a lot.

[Tesla DeLorean]

Posted on March 19, 2015 at 19:05

Are you driving the NRESET line?

[Linda]

Posted on March 23, 2015 at 19:31

Dear Sir,

Is possible to set protection level by sectors? For example, I want to set sector 19 as level 2 RDP, the rest as level 1 RDP by code? Thanks a lot

[Tesla DeLorean]

Posted on March 24, 2015 at 17:43

I don't think so, and other code in FLASH/ROM can read itself.