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> A USB DFU function embedded in boot ROM is flatly undesirable in an MCU with no memory protection. Are you saying DFU is not useful without an MMU/MPU? Why w
by alex-robbins 2y ago
> A USB DFU function embedded in boot ROM is flatly undesirable in an MCU with no memory protection.
Are you saying DFU is not useful without an MMU/MPU? Why would that be?
- ryukoposting 2y agoIt's certainly useful, but having it embedded within the hardware with no way to properly secure it makes the RP2040 a non-starter for any product I've ever written firmware for.
- TickleSteve 2y agoit has secure boot and TrustZone.
- crest 2y agoNot the RP2040. That chip has no boot security from anyone with physical access to the QSPI or SWD pins.