1. 0.5mm pitch QFP Hand Soldering for FST-01

    STM32F103CB, which is TQFP 48-pin

    For the first experimental version of FST-01, I use STM32F103CB, 48-pin TQFP chip.

    PCB Design constraint

    For FST-01 size (26mm x 13mm, approximately), I needed to have smaller pad pattern of 48-pin TQFP than recommended footprint.

    This is not good. For hand soldering, pad pattern …

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  2. Building Gnuk for STM32 part of STM8S Discovery Kit

    Building Gnuk is not that hard after you have GNU Toolchain for ARM. This document shows exact log for your information.

    Please read README of Gnuk. Given you have the source code of Gnuk, it's simple: configure and make.


    We go to src directory at first, and invoke configure …

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  3. Installing Gnuk to STM32 part of STM8S Discovery Kit


    Note that once you install Gnuk to its STM32F103,there is no way to recover to original state. That is, you cannot use the feature of USB dongle for STM8S any more.

    You have JTAG debugger which uses FTDI 2232D.

    You installed OpenOCD.

    You have source code of Gnuk …

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