EthercatDevice_DmpHID.uartClearTxQueue()

[EthercatDevice_DmpHID_Generic]

Description

Clear the software TX FIFO for the specified UART port of the EtherCAT slave device in this library.

Derived Class:

Syntax

int uartClearTxQueue(int dev);

Parameters

• [in] int dev
  The specified UART port of the EtherCAT slave device.
  • 0 for COM1.
  • 1 for COM2.

Return Value

Return an error code. If the returned value is zero, it indicates a successful execution of this function.

Comment

This function must be called after a successful execution of EthercatMaster::begin(). This function is non-blocking and can be called within the Cyclic Callback.

Example

#include "Ethercat.h"

EthercatMaster master;
EthercatDevice_QECR11HU9S slave;

void setup() {
  master.begin();
  slave.attach(0, master);
  slave.uartClearTxQueue(0);
}

void loop() {
  // ...
}

Please see EthercatDevice_DmpHID_Generic Class for more QEC HID slave instructions and API usage.