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No flow-control on TARGET_LPC55S69 #10400
It would seem that either the board does not support flow-control, or Mbed OS is not enabling it.
This would be required to enable stable network connectivity with AT-based ESP8266 Wi-Fi.
Related with internal ticket: https://jira.arm.com/browse/IOTHAL-483
Issue request type
@mmahadevan108 - this one is urgent for our device management team. it will enable reliable communication to a uart-based external module.
It looks like the serial_set_flow_control function is not implemented for this target.
The definition is here
Also PeripheralPins.c doesn't have pins for flow control.
Based on the reference manual and schematic, I believe the following pins are available on the header and support UART function with flow control using the Flexcomm 2 peripheral.
TX = P0_27