Just someone running away from Reddit.

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Joined 1 year ago
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Cake day: June 5th, 2023

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  • That’s usually not how secure boot is configured on microcontrollers. They usually come with no code installed and an unsigned bootloader, and therefore no barrier for you to flash what you want on it.

    In fact, the STM32 has secure boot, and it’s still one of the most popular microcontrollers for makers and hackers. That’s because the secure boot feature is there for developers, hackers and makers to use if they want to.


  • RP2350 specs:

    • Two 150MHz Arm Cortex-M33 cores, with floating point and DSP support
    • 520KB of on-chip SRAM in ten concurrently accessible banks
    • A comprehensive security architecture, built around Arm TrustZone for Cortex-M, and including:
      • Signed boot support
      • 8KB of on-chip antifuse one-time-programmable (OTP) memory
      • SHA-256 acceleration
      • A hardware true random number generator (TRNG)
    • An on-chip switch-mode power supply and low-quiescent-current LDO
    • Twelve upgraded PIO state machines
    • A new HSTX peripheral for high-speed data transmission
    • Support for external QSPI PSRAM

    Looking pretty good. I especially like the security features.