EthercatDevice_DmpHID.uartGetDSR()

[EthercatDevice_DmpHID_Generic]

Description

Get the current state of the DSR signal for the specified UART port of the EtherCAT slave device.

Derived Class:

Syntax

int uartGetDSR(int dev);

Parameters

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

Return Value

Return the current state of the DSR signal. 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() {
  Serial.begin(115200);
  
  master.begin();
  slave.attach(0, master);
  master.attachCyclicCallback(CyclicCallback);
  master.start();
}

void loop() {
  Serial.print("DSR: ");
  Serial.println(slave.uartGetDSR(0));
  delay(1000);
  // ...
}

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