Open source flash program for the STM32 ARM processors using the ST serial bootloader over UART or I2C.

Features:
- UART and I2C transports supported
- device identification
- write to flash/ram
- read from flash/ram
- auto-detect Intel HEX or raw binary input format with option to force
binary
- flash from binary file
- save flash to binary file
- verify & retry up to N times on failed writes
- start execution at specified address
- software reset the device when finished if -R is specified
- resume already initialized connection (for when reset fails, UART only)
- GPIO signalling to enter bootloader mode (hardware dependent)