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A comment on I like the RP2040. Parent comment

Re:I like the RP2040 by dgroshev on Tuesday June 11, 2024 @11:12AM (#40647120)
I completely agree that it's inconvenient as a developer tool, a debug probe is much, much nicer.

I just think that despite all testing and care bugs are still possible, and the ROM bootloader is a backup that's always there. Plop a tiny switch on the PCB, and even if I screw up an OTA update customers will still be able to flash with no special tools (if the device has a USB port, that is).

I also use it as a recovery state for panics, makes the device impossible to brick by a panic loop.

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Re:I like the RP2040 by seba_dos1 on Tuesday June 11, 2024 @11:58AM (#40647866)
> I just think that despite all testing and care bugs are still possible, and the ROM bootloader is a backup that's always there.

That's orthogonal to mass storage mode. ROM bootloaders were standard in this class of microcontrollers for years, but they usually don't use UMS. One could argue that UMS is perhaps better than some custom incompatible solutions, but then that's what DFU is there for - a standard way to flash things over USB.

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