diff --git a/SerialPort_USB.c b/SerialPort_USB.c
index 18bc5a6..418551c 100644
--- a/SerialPort_USB.c
+++ b/SerialPort_USB.c
@@ -306,15 +306,19 @@ static uint16_t vSerialPortReceiveQueue(
 static uint16_t vSerialPortUsbTransmit(tSerialPortUsbArtery *env, uint8_t *data, uint16_t size, uint32_t timeout) {
 
     if (env->USB_ID == 1) {
-        if (usb_vcp_send_data(&otg1_core_struct.dev, data, size) == SUCCESS) {
-            return size;
+        if ((otg1_timeout != 0) && (otg1_timeout < SystemGetMs())) {
+            if (usb_vcp_send_data(&otg1_core_struct.dev, data, size) == SUCCESS) {
+                return size;
+            }
         }
     }
 
     if (env->USB_ID == 2) {
 #if (OTG2_USB_ID == 1)
-        if (usb_vcp_send_data(&otg2_core_struct.dev, data, size) == SUCCESS) {
-            return size;
+        if ((otg2_timeout != 0) && (otg2_timeout < SystemGetMs())) {
+            if (usb_vcp_send_data(&otg2_core_struct.dev, data, size) == SUCCESS) {
+                return size;
+            }
         }
 #endif
     }
@@ -335,8 +339,7 @@ vSerialPortUsbSnifferReceive(tSerialPortUsbArtery *env, uint8_t *data, uint16_t
 }
 
 
-usb_sts_type SerialPortUsb_ReInit(uint8_t USB_ID)
-{
+usb_sts_type SerialPortUsb_ReInit(uint8_t USB_ID) {
     usb_sts_type status = USB_OK;
 
     if (USB_ID == 1) {
@@ -383,8 +386,7 @@ usb_sts_type SerialPortUsb_ReInit(uint8_t USB_ID)
                   &cdc_desc_handler);
 
 #endif
-    }
-    else if (USB_ID == 2) {
+    } else if (USB_ID == 2) {
 #if (OTG2_USB_ID == 1)
         if (SerialPortUsbArteryOtg2 == NULL) {
             return USB_ERROR;
@@ -428,8 +430,7 @@ usb_sts_type SerialPortUsb_ReInit(uint8_t USB_ID)
                   &cdc_desc_handler);
 
 #endif
-    }
-    else {
+    } else {
         return USB_ERROR;
     }
 
@@ -441,9 +442,9 @@ static _Noreturn void UsbDriver_Thread(tSerialPortUsbArtery *env) {
     for (;;) {
 
 #if (OTG1_USB_ID == 1)
-       if ((otg1_timeout != 0) && (otg1_timeout < SystemGetMs())) {
-           SerialPortUsb_ReInit(1);
-       }
+        if ((otg1_timeout != 0) && (otg1_timeout < SystemGetMs())) {
+            SerialPortUsb_ReInit(1);
+        }
 #endif
 
 #if (OTG2_USB_ID == 1)
@@ -465,8 +466,6 @@ void UsbDriver_StartThread(tSerialPortUsbArtery *env) {
 }
 
 
-
-
 void SerialPortUsb_Init(
         tSerialPortUsbArtery *env,
         uint8_t USB_ID,
@@ -565,7 +564,7 @@ void SerialPortUsb_Init(
         UsbDriver_StartThread(env);
     }
 */
- }
+}
 
 tSerialPortIO SerialPortUsb_GetIo(tSerialPortUsbArtery *env) {
     tSerialPortIO io = {