Test program: log output

Author: manuelbl

java-does-usb/src/test/java/net/codecrete/usb/special/Continuous.java

@@ -5,6 +5,8 @@
 import net.codecrete.usb.UsbException;
 
 import java.io.IOException;
+import java.time.LocalDateTime;
+import java.time.format.DateTimeFormatter;
 import java.util.Random;
 
 public class Continuous {
@@ -30,7 +32,7 @@ public static void main(String[] args) throws IOException {
     @SuppressWarnings({"java:S2925", "BusyWait"})
     private static void sendData(UsbDevice device) {
         var random = new Random();
-        var buffer = new byte[80];
+        var buffer = new byte[40];
 
         while (true) {
             random.nextBytes(buffer);
@@ -46,9 +48,11 @@ private static void sendData(UsbDevice device) {
     }
 
     private static void readData(UsbDevice device) {
+        var formatter = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss");
         while (true) {
             try {
-                device.transferIn(2);
+                var packet = device.transferIn(2);
+                System.out.printf("%s packet of %d bytes received\n", LocalDateTime.now().format(formatter), packet.length);
             } catch (UsbException e) {
                 return;
             }

test-devices/loopback-stm32/README.md

@@ -52,6 +52,8 @@ The device can be put into suspend mode by the host. It will go into a low-power
 
 A MacBook with macOS usually puts the device into suspend mode about 1 minuate after is has gone to sleep if it is not connected to a power supply. The device will wake up when the MacBook is woken up.
 
+On Windows, the device is put to sleep immediately when the Windows computer is put to sleep.
+
 
 ## Building the firmware