更新UCD-API库及文档

docs/UCD-API文档/examples/work_with_pdc_pr_swap.py

@@ -0,0 +1,36 @@
+#
+# Import UniTAP module.
+#
+import time
+
+import UniTAP
+
+#
+# To initialize UniTAP library wrapper user should create UniTAP.TsiLib() object.
+#
+lUniTAP = UniTAP.TsiLib()
+
+#
+# For opening device, please, put serial number of the device as 8 symbol str or put index of device.
+#
+# dev = lUniTAP.open("NNNNNNNN")
+dev1 = lUniTAP.open(0)
+
+# After opening device as in UCD Console device role should be selected.
+# role = dev.select_role(UniTAP.dev.UCD424.USBCSourceUSBCSink)
+role = dev1.select_role(UniTAP.dev.UCD500.USBCSourceUSBCSink)
+dev1.opf_handler = UniTAP.OpfHandlerInternal(port_tx=role.dptx, port_rx=role.dprx)
+
+before_swap = role.pdcrx.capabilities.status.power_role()
+print("rx role before swap = ", before_swap)
+
+role.pdcrx.controls.send_pr_swap()
+role.pdcrx.capabilities.status.power_role()
+
+
+while role.pdcrx.capabilities.status.power_role() == before_swap:
+    time.sleep(0.1)
+
+print("rx role after swap = ", role.pdcrx.capabilities.status.power_role())
+
+