STLINK
Open source STM32 MCU programming toolset
stlink is an open source toolset to program and debug STM32 devices and boards manufactured by STMicroelectronics. It supports several so-called STLINK programmer boards (and clones thereof) which use a microcontroller chip to translate commands from USB to JTAG/SWD. There are four generations available on the market which are all supported by this toolset.