Samples for STM32F303

Most of these samples works with my non-solder devboard

blink - simple LEDs blink on PB0 and PB1
floatPrintf - work with floats, convert floating point number into a string
Multistepper - stepper motor controller (8 independend motors or up to 64 multiplexed)
NitrogenFlooding - automatic nitrogen flooding
PL2303 - emulates PL2303
usart1 - read data from USART1 and send it back (blocking sending)
usart1fullDMA - USART1 Rx and Tx DMA access (Rx terminated by character match of '\n' or buffer overflow).
usarts - work with all three USARTs with Tx DMA, send to USART1 data read from other, you can send "2\n" or "3\n" to USART1 for tests of USART2/USART3