stm32flash - http://stm32flash.googlecode.com/

Serial Config: 9600 8E1
Version      : 0x31
Option 1     : 0x00
Option 2     : 0x00
Device ID    : 0x0413 (STM32F4xx)
- RAM        : 128KiB  (8192b reserved by bootloader)
- Flash      : 1024KiB (sector size: 4x16384)
- Option RAM : 16b
- System RAM : 29KiB

Resetting device... done.