[英]difference between serial event value and serial port value
我正在使用jssc從串行端口讀取值。一旦我寫入串行端口,就會調用以下回調。 在該回調中,我可以從事件中獲取值,也可以從串行端口本身獲取包含不同值的值。 我想知道串行端口值和串行事件值之間的區別,該事件是否包含來自串行端口的值?
public class PortReader implements SerialPortEventListener {
SerialPort serialPort;
public PortReader(SerialPort serialPort) {
this.serialPort = serialPort;
}
@Override
public void serialEvent(SerialPortEvent event) {
System.out.println("started");
if (event.isRXCHAR() && event.getEventValue() > 0) {
try {
String receivedData = serialPort.readString(event.getEventValue());
System.out.println("Received response: " + receivedData);
receivedData = serialPort.readString();
System.out.println("Received response: " + receivedData);
} catch (SerialPortException ex) {
System.out.println("Error in receiving string from COM-port: " + ex);
}
}
}
}
根據JSSC的文檔,事件值是jssc特定的,而事件攜帶的數據則來自串行端口。
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