1. Flash Memory Read-Out Protection

    MCU usually supports a feature to disable reading out its content of flash memory for external use.

    Such a feature is useful when we build a device like Gnuk Token, because we can make sure that secret data on a device cannot be read out.

    Historically, this feature was implemented …

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  2. Porting Chopstx to RISC-V MCU

    For GD32VF103 (Note: it's not GD32 F 103, but GD32 VF 103), I ported Chopstx in master. It will be released in Chopstx 2.0.

    It was in 2018, when I ported Chopstx to GD32F103 in Chopstx 1.9. GD32F103 uses ARM Cortex-M3 core and peripherals are compatible to STM32F103 …

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  3. Tian Tian Xiang Shang - Another Hardware

    Now, initial TTXS is working well.

    I'm porting TTXS to the board named Nucleo-32 L432, which is smaller. There used to be a single Nucleo board, which was STM32 Nucleo F103. It seemed that when the smaller one came, now, there are two different series, smaller Nucleo-32 and larger Nucleo-64 …

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