I want to confirm these information about UART:
1. @IMX6SL platform, UART parity only have ODD/EVEN mode, but not contain MARK and SPACE, is it right? Further more, is there any upgrade for this to support MARK & SPACE?
2. about the flow control, the spec shows that this platform only support RTS/CTS HW flow control.
what is it about DTR/DSR?
3. how to use SW flow control (XON/XOFF)?