This library is used to upload/download firmware to/from STM32Fx microcontrollers via UART port, which automatically allows in circuit programming of daisy chained microcontrollers.
Programming over local computer and over TCP/IP connection is allowed.
In order to upload firmware over a serial port in localhost, use flash-over-serial.py.
In order to upload firmware over TCP/IP via a simple transparent serial-tcp bridge, run flash-over-tcp.py.
tcp-serial-bridge.py is a simple transparent bridge application that is added for testing/debugging purposes.
http://www.st.com/web/en/resource/technical/document/application_note/CD00264342.pdf