Flow control of UART for FRDM-KL43Z

[kaikailiu]

Hi expert, 

Just two simple questions(Platform FRDM-KL43Z, board: MKL43Z256xxx4, SDK 2, KDS: 3.2.0):

1) Does this platform support hardware control (RTS/PTS) for UART? I can see that the MKL43Z4_features.h define the FSL_FEATURE_UART_HAS_MODEM_SUPPORT to 0. So this platform does not support hardware flow control, right?

2) Can I realise a UART with hardware control with FLEXio??

Thanks in advance,

Kaikai

Blue Creation, Cambridge

[Robin_Shen]

Hi kaikai,
1) The UART and LPUART module of KL43 doesn't support support hardware flow control (RTS/CTS).

2) The FlexIO module can be used to realize UART hardware flow control (RTS/CTS). For more detail please read the section "39.5.1 UART Transmit" and "39.5.2 UART Receive" in KL43P64M48SF6RM.

Best Regards,

Robin

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