diff --git a/demo/ch32/usb_device/CH32V307VCT6/CherryUSB/usb_config.h b/demo/ch32/usb_device/CH32V307VCT6/CherryUSB/usb_config.h
new file mode 100644
index 00000000..59dd164b
--- /dev/null
+++ b/demo/ch32/usb_device/CH32V307VCT6/CherryUSB/usb_config.h
@@ -0,0 +1,106 @@
+#ifndef _USB_CONFIG_H
+#define _USB_CONFIG_H
+
+/* USB DEVICE Configuration */
+/* core */
+#ifndef CONFIG_USBDEV_REQUEST_BUFFER_LEN
+#define CONFIG_USBDEV_REQUEST_BUFFER_LEN 256
+#endif
+
+#ifndef CONFIG_USBDEV_DESC_CHECK
+#define CONFIG_USBDEV_DESC_CHECK 0
+#endif
+
+#ifndef CONFIG_USBDEV_TEST_MODE
+#define CONFIG_USBDEV_TEST_MODE 0
+#endif
+
+/* msc class */
+#ifndef CONFIG_USBDEV_MSC_MANUFACTURER_STRING
+#define CONFIG_USBDEV_MSC_MANUFACTURER_STRING ""
+#endif
+
+#ifndef CONFIG_USBDEV_MSC_PRODUCT_STRING
+#define CONFIG_USBDEV_MSC_PRODUCT_STRING ""
+#endif
+
+#ifndef CONFIG_USBDEV_MSC_VERSION_STRING
+#define CONFIG_USBDEV_MSC_VERSION_STRING "0.01"
+#endif
+
+/* audio class */
+#ifndef CONFIG_USBDEV_AUDIO_VERSION
+#define CONFIG_USBDEV_AUDIO_VERSION 0x0100
+#endif
+
+#ifndef CONFIG_USBDEV_AUDIO_MAX_CHANNEL
+#define CONFIG_USBDEV_AUDIO_MAX_CHANNEL 2
+#endif
+
+/* USB HOST Configuration */
+#ifndef CONFIG_USBHOST_RHPORTS
+#define CONFIG_USBHOST_RHPORTS 1
+#endif
+
+#ifndef CONFIG_USBHOST_EHPORTS
+#define CONFIG_USBHOST_EHPORTS 4
+#endif
+
+#ifndef CONFIG_USBHOST_PIPE_NUM
+#define CONFIG_USBHOST_PIPE_NUM 10
+#endif
+
+#ifndef CONFIG_USBHOST_INTF_NUM
+#define CONFIG_USBHOST_INTF_NUM 6
+#endif
+
+#ifndef CONFIG_USBHOST_EP_NUM
+#define CONFIG_USBHOST_EP_NUM 4
+#endif
+
+#ifndef CONFIG_USBHOST_CONTROL_TRANSFER_TIMEOUT
+#define CONFIG_USBHOST_CONTROL_TRANSFER_TIMEOUT 5000
+#endif
+
+#ifndef CONFIG_USBHOST_MSC_TIMEOUT
+#define CONFIG_USBHOST_MSC_TIMEOUT 5000
+#endif
+
+#ifndef CONFIG_USBHOST_HPWORKQ_PRIO
+#define CONFIG_USBHOST_HPWORKQ_PRIO 5
+#endif
+#ifndef CONFIG_USBHOST_HPWORKQ_STACKSIZE
+#define CONFIG_USBHOST_HPWORKQ_STACKSIZE 2048
+#endif
+
+#ifndef CONFIG_USBHOST_LPWORKQ_PRIO
+#define CONFIG_USBHOST_LPWORKQ_PRIO 1
+#endif
+#ifndef CONFIG_USBHOST_LPWORKQ_STACKSIZE
+#define CONFIG_USBHOST_LPWORKQ_STACKSIZE 2048
+#endif
+
+#ifndef CONFIG_USBHOST_PSC_PRIO
+#define CONFIG_USBHOST_PSC_PRIO 4
+#endif
+#ifndef CONFIG_USBHOST_PSC_STACKSIZE
+#define CONFIG_USBHOST_PSC_STACKSIZE 4096
+#endif
+
+#ifndef CONFIG_USBHOST_DEV_NAMELEN
+#define CONFIG_USBHOST_DEV_NAMELEN 16
+#endif
+
+#define CONFIG_USBHOST_ASYNCH
+//#define CONFIG_USBHOST_GET_STRING_DESC
+
+/* EHCI Configuration */
+#define CONFIG_USB_EHCI_HCCR_BASE (0x20072000)
+#define CONFIG_USB_EHCI_HCOR_BASE (0x20072000 + 0x10)
+#define CONFIG_USB_EHCI_QH_NUM    (10)
+#define CONFIG_USB_EHCI_QTD_NUM   (10)
+// #define CONFIG_USB_EHCI_INFO_ENABLE
+#define CONFIG_USB_ECHI_HCOR_RESERVED_DISABLE
+// #define CONFIG_USB_EHCI_CONFIGFLAG
+
+#endif
diff --git a/demo/es32/usb_device/ES32F369x/Inc/usb_config.h b/demo/es32/usb_device/ES32F369x/Inc/usb_config.h
new file mode 100644
index 00000000..59dd164b
--- /dev/null
+++ b/demo/es32/usb_device/ES32F369x/Inc/usb_config.h
@@ -0,0 +1,106 @@
+#ifndef _USB_CONFIG_H
+#define _USB_CONFIG_H
+
+/* USB DEVICE Configuration */
+/* core */
+#ifndef CONFIG_USBDEV_REQUEST_BUFFER_LEN
+#define CONFIG_USBDEV_REQUEST_BUFFER_LEN 256
+#endif
+
+#ifndef CONFIG_USBDEV_DESC_CHECK
+#define CONFIG_USBDEV_DESC_CHECK 0
+#endif
+
+#ifndef CONFIG_USBDEV_TEST_MODE
+#define CONFIG_USBDEV_TEST_MODE 0
+#endif
+
+/* msc class */
+#ifndef CONFIG_USBDEV_MSC_MANUFACTURER_STRING
+#define CONFIG_USBDEV_MSC_MANUFACTURER_STRING ""
+#endif
+
+#ifndef CONFIG_USBDEV_MSC_PRODUCT_STRING
+#define CONFIG_USBDEV_MSC_PRODUCT_STRING ""
+#endif
+
+#ifndef CONFIG_USBDEV_MSC_VERSION_STRING
+#define CONFIG_USBDEV_MSC_VERSION_STRING "0.01"
+#endif
+
+/* audio class */
+#ifndef CONFIG_USBDEV_AUDIO_VERSION
+#define CONFIG_USBDEV_AUDIO_VERSION 0x0100
+#endif
+
+#ifndef CONFIG_USBDEV_AUDIO_MAX_CHANNEL
+#define CONFIG_USBDEV_AUDIO_MAX_CHANNEL 2
+#endif
+
+/* USB HOST Configuration */
+#ifndef CONFIG_USBHOST_RHPORTS
+#define CONFIG_USBHOST_RHPORTS 1
+#endif
+
+#ifndef CONFIG_USBHOST_EHPORTS
+#define CONFIG_USBHOST_EHPORTS 4
+#endif
+
+#ifndef CONFIG_USBHOST_PIPE_NUM
+#define CONFIG_USBHOST_PIPE_NUM 10
+#endif
+
+#ifndef CONFIG_USBHOST_INTF_NUM
+#define CONFIG_USBHOST_INTF_NUM 6
+#endif
+
+#ifndef CONFIG_USBHOST_EP_NUM
+#define CONFIG_USBHOST_EP_NUM 4
+#endif
+
+#ifndef CONFIG_USBHOST_CONTROL_TRANSFER_TIMEOUT
+#define CONFIG_USBHOST_CONTROL_TRANSFER_TIMEOUT 5000
+#endif
+
+#ifndef CONFIG_USBHOST_MSC_TIMEOUT
+#define CONFIG_USBHOST_MSC_TIMEOUT 5000
+#endif
+
+#ifndef CONFIG_USBHOST_HPWORKQ_PRIO
+#define CONFIG_USBHOST_HPWORKQ_PRIO 5
+#endif
+#ifndef CONFIG_USBHOST_HPWORKQ_STACKSIZE
+#define CONFIG_USBHOST_HPWORKQ_STACKSIZE 2048
+#endif
+
+#ifndef CONFIG_USBHOST_LPWORKQ_PRIO
+#define CONFIG_USBHOST_LPWORKQ_PRIO 1
+#endif
+#ifndef CONFIG_USBHOST_LPWORKQ_STACKSIZE
+#define CONFIG_USBHOST_LPWORKQ_STACKSIZE 2048
+#endif
+
+#ifndef CONFIG_USBHOST_PSC_PRIO
+#define CONFIG_USBHOST_PSC_PRIO 4
+#endif
+#ifndef CONFIG_USBHOST_PSC_STACKSIZE
+#define CONFIG_USBHOST_PSC_STACKSIZE 4096
+#endif
+
+#ifndef CONFIG_USBHOST_DEV_NAMELEN
+#define CONFIG_USBHOST_DEV_NAMELEN 16
+#endif
+
+#define CONFIG_USBHOST_ASYNCH
+//#define CONFIG_USBHOST_GET_STRING_DESC
+
+/* EHCI Configuration */
+#define CONFIG_USB_EHCI_HCCR_BASE (0x20072000)
+#define CONFIG_USB_EHCI_HCOR_BASE (0x20072000 + 0x10)
+#define CONFIG_USB_EHCI_QH_NUM    (10)
+#define CONFIG_USB_EHCI_QTD_NUM   (10)
+// #define CONFIG_USB_EHCI_INFO_ENABLE
+#define CONFIG_USB_ECHI_HCOR_RESERVED_DISABLE
+// #define CONFIG_USB_EHCI_CONFIGFLAG
+
+#endif
diff --git a/demo/nuvoton/usb_device/nuc442/User/usb_config.h b/demo/nuvoton/usb_device/nuc442/User/usb_config.h
new file mode 100644
index 00000000..59dd164b
--- /dev/null
+++ b/demo/nuvoton/usb_device/nuc442/User/usb_config.h
@@ -0,0 +1,106 @@
+#ifndef _USB_CONFIG_H
+#define _USB_CONFIG_H
+
+/* USB DEVICE Configuration */
+/* core */
+#ifndef CONFIG_USBDEV_REQUEST_BUFFER_LEN
+#define CONFIG_USBDEV_REQUEST_BUFFER_LEN 256
+#endif
+
+#ifndef CONFIG_USBDEV_DESC_CHECK
+#define CONFIG_USBDEV_DESC_CHECK 0
+#endif
+
+#ifndef CONFIG_USBDEV_TEST_MODE
+#define CONFIG_USBDEV_TEST_MODE 0
+#endif
+
+/* msc class */
+#ifndef CONFIG_USBDEV_MSC_MANUFACTURER_STRING
+#define CONFIG_USBDEV_MSC_MANUFACTURER_STRING ""
+#endif
+
+#ifndef CONFIG_USBDEV_MSC_PRODUCT_STRING
+#define CONFIG_USBDEV_MSC_PRODUCT_STRING ""
+#endif
+
+#ifndef CONFIG_USBDEV_MSC_VERSION_STRING
+#define CONFIG_USBDEV_MSC_VERSION_STRING "0.01"
+#endif
+
+/* audio class */
+#ifndef CONFIG_USBDEV_AUDIO_VERSION
+#define CONFIG_USBDEV_AUDIO_VERSION 0x0100
+#endif
+
+#ifndef CONFIG_USBDEV_AUDIO_MAX_CHANNEL
+#define CONFIG_USBDEV_AUDIO_MAX_CHANNEL 2
+#endif
+
+/* USB HOST Configuration */
+#ifndef CONFIG_USBHOST_RHPORTS
+#define CONFIG_USBHOST_RHPORTS 1
+#endif
+
+#ifndef CONFIG_USBHOST_EHPORTS
+#define CONFIG_USBHOST_EHPORTS 4
+#endif
+
+#ifndef CONFIG_USBHOST_PIPE_NUM
+#define CONFIG_USBHOST_PIPE_NUM 10
+#endif
+
+#ifndef CONFIG_USBHOST_INTF_NUM
+#define CONFIG_USBHOST_INTF_NUM 6
+#endif
+
+#ifndef CONFIG_USBHOST_EP_NUM
+#define CONFIG_USBHOST_EP_NUM 4
+#endif
+
+#ifndef CONFIG_USBHOST_CONTROL_TRANSFER_TIMEOUT
+#define CONFIG_USBHOST_CONTROL_TRANSFER_TIMEOUT 5000
+#endif
+
+#ifndef CONFIG_USBHOST_MSC_TIMEOUT
+#define CONFIG_USBHOST_MSC_TIMEOUT 5000
+#endif
+
+#ifndef CONFIG_USBHOST_HPWORKQ_PRIO
+#define CONFIG_USBHOST_HPWORKQ_PRIO 5
+#endif
+#ifndef CONFIG_USBHOST_HPWORKQ_STACKSIZE
+#define CONFIG_USBHOST_HPWORKQ_STACKSIZE 2048
+#endif
+
+#ifndef CONFIG_USBHOST_LPWORKQ_PRIO
+#define CONFIG_USBHOST_LPWORKQ_PRIO 1
+#endif
+#ifndef CONFIG_USBHOST_LPWORKQ_STACKSIZE
+#define CONFIG_USBHOST_LPWORKQ_STACKSIZE 2048
+#endif
+
+#ifndef CONFIG_USBHOST_PSC_PRIO
+#define CONFIG_USBHOST_PSC_PRIO 4
+#endif
+#ifndef CONFIG_USBHOST_PSC_STACKSIZE
+#define CONFIG_USBHOST_PSC_STACKSIZE 4096
+#endif
+
+#ifndef CONFIG_USBHOST_DEV_NAMELEN
+#define CONFIG_USBHOST_DEV_NAMELEN 16
+#endif
+
+#define CONFIG_USBHOST_ASYNCH
+//#define CONFIG_USBHOST_GET_STRING_DESC
+
+/* EHCI Configuration */
+#define CONFIG_USB_EHCI_HCCR_BASE (0x20072000)
+#define CONFIG_USB_EHCI_HCOR_BASE (0x20072000 + 0x10)
+#define CONFIG_USB_EHCI_QH_NUM    (10)
+#define CONFIG_USB_EHCI_QTD_NUM   (10)
+// #define CONFIG_USB_EHCI_INFO_ENABLE
+#define CONFIG_USB_ECHI_HCOR_RESERVED_DISABLE
+// #define CONFIG_USB_EHCI_CONFIGFLAG
+
+#endif
diff --git a/demo/stm32/usb_device/stm32f103c8t6/Core/Inc/usb_config.h b/demo/stm32/usb_device/stm32f103c8t6/Core/Inc/usb_config.h
new file mode 100644
index 00000000..59dd164b
--- /dev/null
+++ b/demo/stm32/usb_device/stm32f103c8t6/Core/Inc/usb_config.h
@@ -0,0 +1,106 @@
+#ifndef _USB_CONFIG_H
+#define _USB_CONFIG_H
+
+/* USB DEVICE Configuration */
+/* core */
+#ifndef CONFIG_USBDEV_REQUEST_BUFFER_LEN
+#define CONFIG_USBDEV_REQUEST_BUFFER_LEN 256
+#endif
+
+#ifndef CONFIG_USBDEV_DESC_CHECK
+#define CONFIG_USBDEV_DESC_CHECK 0
+#endif
+
+#ifndef CONFIG_USBDEV_TEST_MODE
+#define CONFIG_USBDEV_TEST_MODE 0
+#endif
+
+/* msc class */
+#ifndef CONFIG_USBDEV_MSC_MANUFACTURER_STRING
+#define CONFIG_USBDEV_MSC_MANUFACTURER_STRING ""
+#endif
+
+#ifndef CONFIG_USBDEV_MSC_PRODUCT_STRING
+#define CONFIG_USBDEV_MSC_PRODUCT_STRING ""
+#endif
+
+#ifndef CONFIG_USBDEV_MSC_VERSION_STRING
+#define CONFIG_USBDEV_MSC_VERSION_STRING "0.01"
+#endif
+
+/* audio class */
+#ifndef CONFIG_USBDEV_AUDIO_VERSION
+#define CONFIG_USBDEV_AUDIO_VERSION 0x0100
+#endif
+
+#ifndef CONFIG_USBDEV_AUDIO_MAX_CHANNEL
+#define CONFIG_USBDEV_AUDIO_MAX_CHANNEL 2
+#endif
+
+/* USB HOST Configuration */
+#ifndef CONFIG_USBHOST_RHPORTS
+#define CONFIG_USBHOST_RHPORTS 1
+#endif
+
+#ifndef CONFIG_USBHOST_EHPORTS
+#define CONFIG_USBHOST_EHPORTS 4
+#endif
+
+#ifndef CONFIG_USBHOST_PIPE_NUM
+#define CONFIG_USBHOST_PIPE_NUM 10
+#endif
+
+#ifndef CONFIG_USBHOST_INTF_NUM
+#define CONFIG_USBHOST_INTF_NUM 6
+#endif
+
+#ifndef CONFIG_USBHOST_EP_NUM
+#define CONFIG_USBHOST_EP_NUM 4
+#endif
+
+#ifndef CONFIG_USBHOST_CONTROL_TRANSFER_TIMEOUT
+#define CONFIG_USBHOST_CONTROL_TRANSFER_TIMEOUT 5000
+#endif
+
+#ifndef CONFIG_USBHOST_MSC_TIMEOUT
+#define CONFIG_USBHOST_MSC_TIMEOUT 5000
+#endif
+
+#ifndef CONFIG_USBHOST_HPWORKQ_PRIO
+#define CONFIG_USBHOST_HPWORKQ_PRIO 5
+#endif
+#ifndef CONFIG_USBHOST_HPWORKQ_STACKSIZE
+#define CONFIG_USBHOST_HPWORKQ_STACKSIZE 2048
+#endif
+
+#ifndef CONFIG_USBHOST_LPWORKQ_PRIO
+#define CONFIG_USBHOST_LPWORKQ_PRIO 1
+#endif
+#ifndef CONFIG_USBHOST_LPWORKQ_STACKSIZE
+#define CONFIG_USBHOST_LPWORKQ_STACKSIZE 2048
+#endif
+
+#ifndef CONFIG_USBHOST_PSC_PRIO
+#define CONFIG_USBHOST_PSC_PRIO 4
+#endif
+#ifndef CONFIG_USBHOST_PSC_STACKSIZE
+#define CONFIG_USBHOST_PSC_STACKSIZE 4096
+#endif
+
+#ifndef CONFIG_USBHOST_DEV_NAMELEN
+#define CONFIG_USBHOST_DEV_NAMELEN 16
+#endif
+
+#define CONFIG_USBHOST_ASYNCH
+//#define CONFIG_USBHOST_GET_STRING_DESC
+
+/* EHCI Configuration */
+#define CONFIG_USB_EHCI_HCCR_BASE (0x20072000)
+#define CONFIG_USB_EHCI_HCOR_BASE (0x20072000 + 0x10)
+#define CONFIG_USB_EHCI_QH_NUM    (10)
+#define CONFIG_USB_EHCI_QTD_NUM   (10)
+// #define CONFIG_USB_EHCI_INFO_ENABLE
+#define CONFIG_USB_ECHI_HCOR_RESERVED_DISABLE
+// #define CONFIG_USB_EHCI_CONFIGFLAG
+
+#endif
diff --git a/demo/stm32/usb_device/stm32f103c8t6/Core/Src/main.c b/demo/stm32/usb_device/stm32f103c8t6/Core/Src/main.c
index b0536e72..e9ea5a61 100644
--- a/demo/stm32/usb_device/stm32f103c8t6/Core/Src/main.c
+++ b/demo/stm32/usb_device/stm32f103c8t6/Core/Src/main.c
@@ -76,7 +76,7 @@ void usb_dc_low_level_init(void)
     HAL_NVIC_EnableIRQ(USB_LP_CAN1_RX0_IRQn);
 
 }
-extern void usb_dc_init(void);
+
 /* USER CODE END 0 */
 
 /**
diff --git a/demo/stm32/usb_device/stm32f429igt6/Core/Inc/usb_config.h b/demo/stm32/usb_device/stm32f429igt6/Core/Inc/usb_config.h
new file mode 100644
index 00000000..59dd164b
--- /dev/null
+++ b/demo/stm32/usb_device/stm32f429igt6/Core/Inc/usb_config.h
@@ -0,0 +1,106 @@
+#ifndef _USB_CONFIG_H
+#define _USB_CONFIG_H
+
+/* USB DEVICE Configuration */
+/* core */
+#ifndef CONFIG_USBDEV_REQUEST_BUFFER_LEN
+#define CONFIG_USBDEV_REQUEST_BUFFER_LEN 256
+#endif
+
+#ifndef CONFIG_USBDEV_DESC_CHECK
+#define CONFIG_USBDEV_DESC_CHECK 0
+#endif
+
+#ifndef CONFIG_USBDEV_TEST_MODE
+#define CONFIG_USBDEV_TEST_MODE 0
+#endif
+
+/* msc class */
+#ifndef CONFIG_USBDEV_MSC_MANUFACTURER_STRING
+#define CONFIG_USBDEV_MSC_MANUFACTURER_STRING ""
+#endif
+
+#ifndef CONFIG_USBDEV_MSC_PRODUCT_STRING
+#define CONFIG_USBDEV_MSC_PRODUCT_STRING ""
+#endif
+
+#ifndef CONFIG_USBDEV_MSC_VERSION_STRING
+#define CONFIG_USBDEV_MSC_VERSION_STRING "0.01"
+#endif
+
+/* audio class */
+#ifndef CONFIG_USBDEV_AUDIO_VERSION
+#define CONFIG_USBDEV_AUDIO_VERSION 0x0100
+#endif
+
+#ifndef CONFIG_USBDEV_AUDIO_MAX_CHANNEL
+#define CONFIG_USBDEV_AUDIO_MAX_CHANNEL 2
+#endif
+
+/* USB HOST Configuration */
+#ifndef CONFIG_USBHOST_RHPORTS
+#define CONFIG_USBHOST_RHPORTS 1
+#endif
+
+#ifndef CONFIG_USBHOST_EHPORTS
+#define CONFIG_USBHOST_EHPORTS 4
+#endif
+
+#ifndef CONFIG_USBHOST_PIPE_NUM
+#define CONFIG_USBHOST_PIPE_NUM 10
+#endif
+
+#ifndef CONFIG_USBHOST_INTF_NUM
+#define CONFIG_USBHOST_INTF_NUM 6
+#endif
+
+#ifndef CONFIG_USBHOST_EP_NUM
+#define CONFIG_USBHOST_EP_NUM 4
+#endif
+
+#ifndef CONFIG_USBHOST_CONTROL_TRANSFER_TIMEOUT
+#define CONFIG_USBHOST_CONTROL_TRANSFER_TIMEOUT 5000
+#endif
+
+#ifndef CONFIG_USBHOST_MSC_TIMEOUT
+#define CONFIG_USBHOST_MSC_TIMEOUT 5000
+#endif
+
+#ifndef CONFIG_USBHOST_HPWORKQ_PRIO
+#define CONFIG_USBHOST_HPWORKQ_PRIO 5
+#endif
+#ifndef CONFIG_USBHOST_HPWORKQ_STACKSIZE
+#define CONFIG_USBHOST_HPWORKQ_STACKSIZE 2048
+#endif
+
+#ifndef CONFIG_USBHOST_LPWORKQ_PRIO
+#define CONFIG_USBHOST_LPWORKQ_PRIO 1
+#endif
+#ifndef CONFIG_USBHOST_LPWORKQ_STACKSIZE
+#define CONFIG_USBHOST_LPWORKQ_STACKSIZE 2048
+#endif
+
+#ifndef CONFIG_USBHOST_PSC_PRIO
+#define CONFIG_USBHOST_PSC_PRIO 4
+#endif
+#ifndef CONFIG_USBHOST_PSC_STACKSIZE
+#define CONFIG_USBHOST_PSC_STACKSIZE 4096
+#endif
+
+#ifndef CONFIG_USBHOST_DEV_NAMELEN
+#define CONFIG_USBHOST_DEV_NAMELEN 16
+#endif
+
+#define CONFIG_USBHOST_ASYNCH
+//#define CONFIG_USBHOST_GET_STRING_DESC
+
+/* EHCI Configuration */
+#define CONFIG_USB_EHCI_HCCR_BASE (0x20072000)
+#define CONFIG_USB_EHCI_HCOR_BASE (0x20072000 + 0x10)
+#define CONFIG_USB_EHCI_QH_NUM    (10)
+#define CONFIG_USB_EHCI_QTD_NUM   (10)
+// #define CONFIG_USB_EHCI_INFO_ENABLE
+#define CONFIG_USB_ECHI_HCOR_RESERVED_DISABLE
+// #define CONFIG_USB_EHCI_CONFIGFLAG
+
+#endif
diff --git a/demo/stm32/usb_device/stm32h743vbt6/Core/Inc/usb_config.h b/demo/stm32/usb_device/stm32h743vbt6/Core/Inc/usb_config.h
new file mode 100644
index 00000000..59dd164b
--- /dev/null
+++ b/demo/stm32/usb_device/stm32h743vbt6/Core/Inc/usb_config.h
@@ -0,0 +1,106 @@
+#ifndef _USB_CONFIG_H
+#define _USB_CONFIG_H
+
+/* USB DEVICE Configuration */
+/* core */
+#ifndef CONFIG_USBDEV_REQUEST_BUFFER_LEN
+#define CONFIG_USBDEV_REQUEST_BUFFER_LEN 256
+#endif
+
+#ifndef CONFIG_USBDEV_DESC_CHECK
+#define CONFIG_USBDEV_DESC_CHECK 0
+#endif
+
+#ifndef CONFIG_USBDEV_TEST_MODE
+#define CONFIG_USBDEV_TEST_MODE 0
+#endif
+
+/* msc class */
+#ifndef CONFIG_USBDEV_MSC_MANUFACTURER_STRING
+#define CONFIG_USBDEV_MSC_MANUFACTURER_STRING ""
+#endif
+
+#ifndef CONFIG_USBDEV_MSC_PRODUCT_STRING
+#define CONFIG_USBDEV_MSC_PRODUCT_STRING ""
+#endif
+
+#ifndef CONFIG_USBDEV_MSC_VERSION_STRING
+#define CONFIG_USBDEV_MSC_VERSION_STRING "0.01"
+#endif
+
+/* audio class */
+#ifndef CONFIG_USBDEV_AUDIO_VERSION
+#define CONFIG_USBDEV_AUDIO_VERSION 0x0100
+#endif
+
+#ifndef CONFIG_USBDEV_AUDIO_MAX_CHANNEL
+#define CONFIG_USBDEV_AUDIO_MAX_CHANNEL 2
+#endif
+
+/* USB HOST Configuration */
+#ifndef CONFIG_USBHOST_RHPORTS
+#define CONFIG_USBHOST_RHPORTS 1
+#endif
+
+#ifndef CONFIG_USBHOST_EHPORTS
+#define CONFIG_USBHOST_EHPORTS 4
+#endif
+
+#ifndef CONFIG_USBHOST_PIPE_NUM
+#define CONFIG_USBHOST_PIPE_NUM 10
+#endif
+
+#ifndef CONFIG_USBHOST_INTF_NUM
+#define CONFIG_USBHOST_INTF_NUM 6
+#endif
+
+#ifndef CONFIG_USBHOST_EP_NUM
+#define CONFIG_USBHOST_EP_NUM 4
+#endif
+
+#ifndef CONFIG_USBHOST_CONTROL_TRANSFER_TIMEOUT
+#define CONFIG_USBHOST_CONTROL_TRANSFER_TIMEOUT 5000
+#endif
+
+#ifndef CONFIG_USBHOST_MSC_TIMEOUT
+#define CONFIG_USBHOST_MSC_TIMEOUT 5000
+#endif
+
+#ifndef CONFIG_USBHOST_HPWORKQ_PRIO
+#define CONFIG_USBHOST_HPWORKQ_PRIO 5
+#endif
+#ifndef CONFIG_USBHOST_HPWORKQ_STACKSIZE
+#define CONFIG_USBHOST_HPWORKQ_STACKSIZE 2048
+#endif
+
+#ifndef CONFIG_USBHOST_LPWORKQ_PRIO
+#define CONFIG_USBHOST_LPWORKQ_PRIO 1
+#endif
+#ifndef CONFIG_USBHOST_LPWORKQ_STACKSIZE
+#define CONFIG_USBHOST_LPWORKQ_STACKSIZE 2048
+#endif
+
+#ifndef CONFIG_USBHOST_PSC_PRIO
+#define CONFIG_USBHOST_PSC_PRIO 4
+#endif
+#ifndef CONFIG_USBHOST_PSC_STACKSIZE
+#define CONFIG_USBHOST_PSC_STACKSIZE 4096
+#endif
+
+#ifndef CONFIG_USBHOST_DEV_NAMELEN
+#define CONFIG_USBHOST_DEV_NAMELEN 16
+#endif
+
+#define CONFIG_USBHOST_ASYNCH
+//#define CONFIG_USBHOST_GET_STRING_DESC
+
+/* EHCI Configuration */
+#define CONFIG_USB_EHCI_HCCR_BASE (0x20072000)
+#define CONFIG_USB_EHCI_HCOR_BASE (0x20072000 + 0x10)
+#define CONFIG_USB_EHCI_QH_NUM    (10)
+#define CONFIG_USB_EHCI_QTD_NUM   (10)
+// #define CONFIG_USB_EHCI_INFO_ENABLE
+#define CONFIG_USB_ECHI_HCOR_RESERVED_DISABLE
+// #define CONFIG_USB_EHCI_CONFIGFLAG
+
+#endif
diff --git a/usb_config.h b/usb_config.h
index 5843a2a3..59dd164b 100644
--- a/usb_config.h
+++ b/usb_config.h
@@ -17,11 +17,11 @@
 
 /* msc class */
 #ifndef CONFIG_USBDEV_MSC_MANUFACTURER_STRING
-#define CONFIG_USBDEV_MSC_MANUFACTURER_STRING "Bouffalo"
+#define CONFIG_USBDEV_MSC_MANUFACTURER_STRING ""
 #endif
 
 #ifndef CONFIG_USBDEV_MSC_PRODUCT_STRING
-#define CONFIG_USBDEV_MSC_PRODUCT_STRING "Product"
+#define CONFIG_USBDEV_MSC_PRODUCT_STRING ""
 #endif
 
 #ifndef CONFIG_USBDEV_MSC_VERSION_STRING