.
Once the machine code containing the user program is prepared on a personal computer, the user must load the code into the memory of the processor. Several methods for loading are available. Most universal programmers (devices that fit between a personal computer containing the machine code and the target microcontroller, and allow the transfer of the code into the microcontroller) support JTAG method. The company ST introduced another method called SWD (serial wire debug), which uses fewer lines than required for JTAG method. Additionally, SWD method is supported by demo board STM32F4DISCOVERY (roughly 15 €), and this board can be used to load the machine code into any board with microcontroller ST32F4xx. The company ST offers a programmer called ST‐LINK/2 which also supports both JATG and SWD methods and is reasonably priced (about 25 €)
.
Programming from Linux - via DFU
https://github.com/micropython/micropython/wiki/Board-STM32F407-Discovery
.
.
.
.
.
.
.
.
.
.
.
.
.
.
Techs it easy 