I'm working with an STM32L072RB, and it seems the system bootloader DFU descriptor reports an incorrect flash size. I couldn't find any documentation of this in the errata sheet for this part, so where would be the right place to report this?The STM3...

I'm planning to use the built-in ROM bootloader in an STM32F4 chip for DFU uploads and having a hard time figuring out how it works exactly (in particular what pins it initializes at what moment in the boot process, and what I need to do externally t...

I'm working on a device with USB connectivity (based on the STM32F401, but I think the question is generic to all STM32). In AN4879 about USB hardware design, section 2.6 I read:Pin PA9, a 5 V-tolerant pin, is natively dedicated to VBUS sensing. The ...

I'm wondering how things work *without* VBUS sensing on, in particular, the STM32F401. From the documentation, I understand that:VBUS sensing can be disabled for bus-powered devices, since these are only powered up when VBUS is present, so VBUS can b...