The transmit enable line on my RS485 transceiver is connected to UART0_RTS (PTB2) on my MK22F processor. I can send data from the UART just fine with the line pulled high, but I'd like to be able to leverage hardware flow control to automatically assert this line. However, the processor expert component doesn't look like it exposes a setting for flow control.
Is there any way to enable this? I've tried the Advanced view, as well as disabling the Tabs view to see if there's an underlying hidden setting, but I haven't found one.