I'm currently using, MQX 4.0, PXS2010 and RS-485 transceiver (SP485EE). (my board, not the tower)
I'm using the example rs485.c with hardware flow control:
rs485_dev = fopen (RS485_CHANNEL, (const char *) IO_SERIAL_HW_485_FLOW_CONTROL);
twr-pxs2010 connects GPIO -> DE, GPIO  -> RE.
my board connects GPIO -> DE, GPIO  -> RE.
My question is how to change these pins in the MQX, to work with DE / RE automatically?
Thanks in advance,