check_serial_port_ready always returns true. There is logic to handle a timeout, but check_serial_port_ready doesn't notify its caller (SerialConnectorPrimitive.__init__) that no serial port was found after a timeout. As such, htrun attempts to use a serial port that isn't yet ready, to send a sync message, leading to failures to sync with greentea-client.
htrun shouldn't attempt to use a serial port until the port is ready. If waiting for the serial port times out, then htrun should fail right then and there and not continue.
check_serial_port_readyalways returns true. There is logic to handle a timeout, butcheck_serial_port_readydoesn't notify its caller (SerialConnectorPrimitive.__init__) that no serial port was found after a timeout. As such, htrun attempts to use a serial port that isn't yet ready, to send a sync message, leading to failures to sync with greentea-client.htrun shouldn't attempt to use a serial port until the port is ready. If waiting for the serial port times out, then htrun should fail right then and there and not continue.