STM32F103 vs GD32F103

STM32F103 vs GD32F103

Most of us do know the ST line of ARM chips called STM32. They come in multiple flavours and the STM32F103 is one of the most common entry level family of chips. They are called by ST as mainstream. They are a full featured 32 bit ARM Cortex M3 chip running at...
Ghetto QFN32 ZIF adaptor

Ghetto QFN32 ZIF adaptor

I’m always fascinated by Zero Insertation Force (ZIF) Sockets, but a bit scared by the price. Simple ones (DIP and SOIC) goes for a few bucks on Ebay, but the more fascinating ones (QFP, QFN, (T)SOP, BGA) either can’t be found or are very expensive. Even...
First GD32 tests

First GD32 tests

Since I don’t use the DHL shipping option for PCB, it takes quite a while before the boards roll in. Today came in the STM32/GD32F103 QFN32 breakout board. I was very excited (for weeks) and soldered all the components quickly on the board. Uptill now I used...