1. Initial G, THE firmaware

    Flying Stone Technology (FST) has started the development of a new firmware, called "Initial G".

    In November 2011, FST released the design of FST-01 (Flying Stone Tiny Zero-One). Then, FST manufactured and started selling of FST-01 in October 2012.

    The first lot of FST-01 comes with Gnuk version 1.0 …

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  2. SWD connection to FST-01

    FST-01 has SWD port to write flash ROM of MCU.

    There had been no good SWD debugger (hardware and software) in the past. Now, ST-Link/V2 is available, and it is not expensive.

    While waiting new OpenOCD release which supports ST-Link/V2, I wrote tool/stlikv2.py to write Gnuk …

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  3. DFU (Device Firmware Upgrade) consideration

    There is an opinion that a device like FST-01 should have DFU which allows users (developers) to update its firmware.

    Yes, some boards (STBee and STBee Mini, for example) have DfuSe (DFU with STmicroelectronics' extension) installed, which eases developments. Developers are not required to have JTAG/SWD debuggers but can …

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  4. Flying Stone Tiny 01 implementation

    Finally, we finished the design of FST-01.

    Components of FST-01

    • STM32F103TB
    • SPI Flash memory (32Mbit)
    • USB Terminator
    • LDO Regulator (3.3V)
    • 12MHz XTAL
    • LED
    • Extension port of VDD/GND/Port0/Port1
    • USB plug A


    MCU is one of Cortex-M3 based ARM by STMicroelectronics …

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