ialized and used to redirect the C library printf(). As an example it outputs the &quot;Welcome to STM32 world ! message on a terminal. The USART is configured as follows:
<ul>
<li>Baudrate = 115200 bps</li>
<li>Word length = 8 bits (7-data bit + 1 stop bit)</li>
<li>One stop bit</li>
<li>No parity</li>
<li>Hardware flow control disabled (RTS and CTS signals)</li>
</ul></li>
</ul>
<p>At the beginning of the main program, the HAL_Init() function is called to initialize the systick used as 1ms HAL timebase.</