Dear Support Team,
We have received efusA9X boards without WLAN/BT chip. On these boards we should be able to use UART C with RTS_CONTROL_TOGGLE flow control. But, with our latest BSP, serial driver does not seem to drive RTS line on this UART at all. Trying with RTS_CONTROL_ENABLE and RTS_CONTROL_DISABLE changed nothing. Nothing happens even when I try to drive this line using:
EscapeCommFunction( hCOM, CLRRTS );
EscapeCommFunction( hCOM, SETRTS );
But, I can drive pin 19 on efus (RTS_C_TTL) normally using DigitalIO driver.
Can you please help me here?