GNU wannabee and Happy Hacking
Finally, we finished the design of FST-01.
MCU is one of Cortex-M3 based ARM by STMicroelectronics …
For the second experimental version of FST-01, I use STM32F103TB, 36-pin QFN chip.
I read (parts of) following articles.
For the first experimental version of FST-01, I use STM32F103CB, 48-pin TQFP chip.
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 …
I am building DIY SWD debugger for my project. As it seems it works somehow, I am writing this document.
It is not fully tested yet, because software is not ready. Just I tested with current version of Tomek Cedro's modification of OpenOCD. It got IDCODE=EE2805D8 successfully.