diff --git a/AT32F425/src/descriptor.c b/AT32F425/src/descriptor.c
index c098507..dc133ae 100644
--- a/AT32F425/src/descriptor.c
+++ b/AT32F425/src/descriptor.c
@@ -75,7 +75,7 @@ ALIGNED_HEAD uint8_t g_config_descriptor[] ALIGNED_TAIL =
 #endif
 	0x00,               				// bInterfaceSubClass
 	0x00,               				// bInterfaceProtocol
-	0x05,               				// iInterface
+	0x05,               				// iInterface£¬±ØÐëÊÇ 5£¬ÒòΪ USB_INTERFACE_STRING == 5
 
 #ifdef DAP_FW_V1
 	// HID Descriptor
diff --git a/CH32V305/src/USBD/usb_desc.h b/CH32V305/src/USBD/usb_desc.h
index 4df3b92..0dd60c9 100644
--- a/CH32V305/src/USBD/usb_desc.h
+++ b/CH32V305/src/USBD/usb_desc.h
@@ -2,11 +2,11 @@
 #define __USB_DESC_H__
 
 
-#define USBD_VID    0x0416
+#define USBD_VID    0x1A86
 #ifdef DAP_FW_V1
-#define USBD_PID    0x5951
+#define USBD_PID    0x5321
 #else
-#define USBD_PID    0x7997
+#define USBD_PID    0x7321
 #endif