2018-01-05 08:20 PM
Hello there. Is there any way to prevent the System Mode bootloader from starting on STM32L433 devices? In the older devices (eg. STM32F334) you could just keep BOOT0 low so a blank device would never start up in any way. Now, when a device is blank you have to worry about 10+ pins triggering the bootloader and causing other pins to potentially become outputs and damage circuitry they're connected to. Is there some way to prevent this so I don't have to consider the post-reset state of dozens of 'General Purpose' I/Os in my designs (especially when they may be expansion ports and I have no idea what might be connected to them)?