v1.0.3

packages/third-party/cherryusb/tools/test_srcipts/test_cdc_speed.py

@@ -0,0 +1,49 @@
+import serial
+import time
+try:
+    from serial.tools.list_ports import comports
+except ImportError:
+    raise serial.serialutil.SerialException
+
+
+test_comx = 'COM66'
+test_baudrate = 2000000
+test_maxsize = 10*1024*1024
+
+test_data = '0xAA' * 4096
+
+test_serial = serial.Serial(test_comx, test_baudrate, timeout = 1)
+
+def test_cdc_out():
+    send_count = 0
+    begin = time.time()
+
+    while True:
+            if send_count < test_maxsize:
+                txdatalen = test_serial.write(test_data.encode("utf-8"))
+                send_count += txdatalen
+            else:
+                print("cdc out speed %f MB/s" %(send_count//1024//1024/(time.time() - begin)))
+                break
+
+def test_cdc_in():
+    read_count = 0
+    begin = time.time()
+
+    while True:
+            if read_count < test_maxsize:
+                data = test_serial.read(test_maxsize).decode(encoding='utf-8',errors='ignore')
+                read_count += len(data)
+            else:
+                print("cdc in speed %f MB/s" %(read_count//1024//1024/(time.time() - begin)))
+                break
+
+if __name__ == '__main__':
+    print('test cdc out speed')
+
+    test_serial.setDTR(0)
+    test_cdc_out()
+
+    print('test cdc in speed')
+    test_serial.setDTR(1)
+    test_cdc_in()