The 'Blinky' project is a simple demo program for
ST 'STM32L152RE' microcontroller using ST 'Nucleo-L152RE' Evaluation Board.
Compliant to Cortex Microcontroller Software Interface Standard (CMSIS v4).

Example functionality:
 - Clock Settings:
   - SYSCLK  =           32.00 MHz
   - HCLK    = SYSCLK  = 32.00 MHz

 - 1 LED blink with a fixed speed, determined by SysTick Timer
     working in interrupt mode
 - if Button USER is pressed all LEDs are lit.
 - "Hello World" is output onto serial port UART2
   UART2 settings: 115200 baud, 8 data bits, no parity, 1 stop bit



The Blinky example is available in different targets:

  STM32L152 Flash:    configured for on-chip Flash
                      (used for production or target debugging)

  STM32L152 RAM:      configured for on-chip RAM
                      (used for target debugging)
