EthercatDevice_DmpHID.lcmWrite()

[EthercatDevice_DmpHID_Generic]

Description

Print one character to the LCM screen of the EtherCAT slave device.

Derived Class:

Syntax

int lcmWrite(char c);

Parameters

• [in] char c
  The character to be printed on the LCM screen.

Return Value

Return the number of characters printed to the LCM screen. If the return value is smaller than 0, it means an error code.

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 CyclicCallback() {
  slave.update();
}

void setup() {
  master.begin();
  slave.attach(0, master);
  master.attachCyclicCallback(CyclicCallback);
  master.start();

  slave.lcmWrite('H');
  slave.lcmWrite('e');
  slave.lcmWrite('l');
  slave.lcmWrite('l');
  slave.lcmWrite('o');
  slave.lcmWrite('!');
}

void loop() {
  // ...
}

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