diff --git a/firmware/config/boards/subaru_eg33/openblt/main_external_osc.c b/firmware/config/boards/subaru_eg33/openblt/main_external_osc.c
index 142ac3e6b0..5fb51f13e2 100644
--- a/firmware/config/boards/subaru_eg33/openblt/main_external_osc.c
+++ b/firmware/config/boards/subaru_eg33/openblt/main_external_osc.c
@@ -113,7 +113,7 @@ static void SystemClock_Config(void)
   RCC_OscInitStruct.PLL.PLLM = 25;
   RCC_OscInitStruct.PLL.PLLN = 432;
   RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
-  RCC_OscInitStruct.PLL.PLLQ = 2;
+  RCC_OscInitStruct.PLL.PLLQ = 9; //48 MHz for USB
   if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
   {
     /* Clock configuration incorrect or hardware failure. Hang the system to prevent
@@ -176,6 +176,10 @@ void HAL_MspInit(void)
   /* CAN clock enable. */
   __HAL_RCC_CAN1_CLK_ENABLE();
 #endif
+#if (BOOT_COM_USB_ENABLE > 0)
+  /* USB clock enable. */
+  __HAL_RCC_USB_OTG_FS_CLK_ENABLE();
+#endif
 
   /* Configure GPIO pin for the Red LED. */
   GPIO_InitStruct.Pin = STATUS_LED_PIN;
@@ -217,7 +221,15 @@ void HAL_MspInit(void)
   GPIO_InitStruct.Alternate = GPIO_AF9_CAN1;
   HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
 #endif
-
+#if (BOOT_COM_USB_ENABLE > 0)
+  /* USB pin configuration. */
+  GPIO_InitStruct.Pin = GPIO_PIN_11 | GPIO_PIN_12;
+  GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
+  GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
+  GPIO_InitStruct.Pull = GPIO_NOPULL;
+  GPIO_InitStruct.Alternate = GPIO_AF10_OTG_FS;
+  HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
+#endif
 } /*** end of HAL_MspInit ***/
 
 
@@ -240,6 +252,14 @@ void HAL_MspDeInit(void)
   HAL_GPIO_DeInit(GPIOB, GPIO_PIN_7);
   HAL_GPIO_DeInit(GPIOC, GPIO_PIN_13);
 
+#if (BOOT_COM_USB_ENABLE > 0)
+  /* Deinit used GPIOs. */
+  HAL_GPIO_DeInit(GPIOA, GPIO_PIN_11);
+  HAL_GPIO_DeInit(GPIOA, GPIO_PIN_12);
+  /* USB clock enable. */
+  __HAL_RCC_USB_OTG_FS_CLK_ENABLE();
+#endif
+
 #if (BOOT_COM_CAN_ENABLE > 0)
   /* Deinit used GPIOs. */
   HAL_GPIO_DeInit(GPIOD, GPIO_PIN_0);
diff --git a/firmware/config/boards/subaru_eg33/openblt/oblt_board.mk b/firmware/config/boards/subaru_eg33/openblt/oblt_board.mk
index 24d73b9ba1..4ce6378110 100644
--- a/firmware/config/boards/subaru_eg33/openblt/oblt_board.mk
+++ b/firmware/config/boards/subaru_eg33/openblt/oblt_board.mk
@@ -22,4 +22,6 @@ BRDFLAGS += -DBOOT_CPU_XTAL_SPEED_KHZ=25000
 BRDFLAGS += -DBOOT_CPU_SYSTEM_SPEED_KHZ=216000
 BRDFLAGS += -DBOOT_COM_RS232_CHANNEL_INDEX=0
 # \brief Select the desired CAN peripheral as a zero based index.
-BRDFLAGS += -DBOOT_COM_CAN_CHANNEL_INDEX=0
\ No newline at end of file
+BRDFLAGS += -DBOOT_COM_CAN_CHANNEL_INDEX=0
+# USB support
+BRDFLAGS += -DBBOOT_COM_USB_ENABLE=1
diff --git a/firmware/flash_usb.sh b/firmware/flash_usb.sh
new file mode 100644
index 0000000000..829c50a618
--- /dev/null
+++ b/firmware/flash_usb.sh
@@ -0,0 +1,15 @@
+#!/bin/bash
+
+# This script will try to flash/update RusEFI part of firmware over USB interface.
+
+echo This script may need root privileges for accessing USB device or special udev rules (TODO)
+
+BootCommander -t=xcp_usb deliver/rusefi_update.srec
+
+# OR
+# You can build it from sources with:
+# (cd ext/openblt/Host/Source/LibOpenBLT/ ; mkdir build ; cd build ; cmake .. ; make -j )
+# and
+# (cd ext/openblt/Host/Source/BootCommander/ ; mkdir build ; cd build ; cmake .. ; make -j )
+# And run:
+# ext/openblt/Host/BootCommander -t=xcp_usb deliver/rusefi_update.srec
diff --git a/firmware/hw_layer/openblt/blt_conf.h b/firmware/hw_layer/openblt/blt_conf.h
index e1cf252ec2..619f154dde 100644
--- a/firmware/hw_layer/openblt/blt_conf.h
+++ b/firmware/hw_layer/openblt/blt_conf.h
@@ -53,6 +53,19 @@
 /****************************************************************************************
 *   C O M M U N I C A T I O N   I N T E R F A C E   C O N F I G U R A T I O N
 ****************************************************************************************/
+/* The USB communication interface is selected by setting the BOOT_COM_USB_ENABLE
+ * configurable to 1. The maximum amount of data bytes in a message for data transmission
+ * and reception is set through BOOT_COM_USB_TX_MAX_DATA and BOOT_COM_USB_RX_MAX_DATA,
+ * respectively.
+ *
+ */
+/** \brief Enable/disable USB transport layer. */
+#define BOOT_COM_USB_ENABLE             (1)
+/** \brief Configure number of bytes in the target->host data packet. */
+#define BOOT_COM_USB_TX_MAX_DATA        (63)
+/** \brief Configure number of bytes in the host->target data packet. */
+#define BOOT_COM_USB_RX_MAX_DATA        (63)
+
 /* The CAN communication interface is selected by setting the BOOT_COM_CAN_ENABLE
  * configurable to 1. Configurable BOOT_COM_CAN_BAUDRATE selects the communication speed
  * in bits/second. Two CAN messages are reserved for communication with the host. The
diff --git a/firmware/hw_layer/openblt/openblt.mk b/firmware/hw_layer/openblt/openblt.mk
index 016a934198..5c525ef89b 100644
--- a/firmware/hw_layer/openblt/openblt.mk
+++ b/firmware/hw_layer/openblt/openblt.mk
@@ -85,18 +85,16 @@ PROJ_FILES += $(PROJECT_DIR)/hw_layer/openblt/led.h
 PROJ_FILES += $(PROJECT_DIR)/hw_layer/openblt/shared_params.c
 PROJ_FILES += $(PROJECT_DIR)/hw_layer/openblt/shared_params.h
 
-ifeq ($(PROJECT_CPU),ARCH_STM32F4)
-	# USB support
-	PROJ_FILES += $(PROJECT_DIR)/hw_layer/openblt/usbd_desc.c
-	PROJ_FILES += $(PROJECT_DIR)/hw_layer/openblt/usbd_desc.h
-	PROJ_FILES += $(PROJECT_DIR)/hw_layer/openblt/usbd_conf.c
-	PROJ_FILES += $(PROJECT_DIR)/hw_layer/openblt/usbd_conf.h
-	PROJ_FILES += $(PROJECT_DIR)/hw_layer/openblt/usbd_bulk.c
-	PROJ_FILES += $(PROJECT_DIR)/hw_layer/openblt/usbd_bulk.h
-	# Common USB lib
-	PROJ_FILES += $(wildcard $(PROJECT_DIR)/ext/openblt/Target/Demo/ARMCM4_STM32F4_Nucleo_F429ZI_GCC/Boot/lib/STM32_USB_Device_Library/Core/Src/*.c)
-	PROJ_FILES += $(wildcard $(PROJECT_DIR)/ext/openblt/Target/Demo/ARMCM4_STM32F4_Nucleo_F429ZI_GCC/Boot/lib/STM32_USB_Device_Library/Core/Inc/*.h)
-endif
+# USB support
+PROJ_FILES += $(PROJECT_DIR)/hw_layer/openblt/usbd_desc.c
+PROJ_FILES += $(PROJECT_DIR)/hw_layer/openblt/usbd_desc.h
+PROJ_FILES += $(PROJECT_DIR)/hw_layer/openblt/usbd_conf.c
+PROJ_FILES += $(PROJECT_DIR)/hw_layer/openblt/usbd_conf.h
+PROJ_FILES += $(PROJECT_DIR)/hw_layer/openblt/usbd_bulk.c
+PROJ_FILES += $(PROJECT_DIR)/hw_layer/openblt/usbd_bulk.h
+# Common USB lib
+PROJ_FILES += $(wildcard $(PROJECT_DIR)/ext/openblt/Target/Demo/ARMCM4_STM32F4_Nucleo_F429ZI_GCC/Boot/lib/STM32_USB_Device_Library/Core/Src/*.c)
+PROJ_FILES += $(wildcard $(PROJECT_DIR)/ext/openblt/Target/Demo/ARMCM4_STM32F4_Nucleo_F429ZI_GCC/Boot/lib/STM32_USB_Device_Library/Core/Inc/*.h)
 
 # CPU-dependent sources
 ifeq ($(PROJECT_CPU),ARCH_STM32F4)
diff --git a/firmware/hw_layer/openblt/usbd_conf.c b/firmware/hw_layer/openblt/usbd_conf.c
index b3cb3f588b..66ac100b17 100644
--- a/firmware/hw_layer/openblt/usbd_conf.c
+++ b/firmware/hw_layer/openblt/usbd_conf.c
@@ -20,8 +20,18 @@
 /* USER CODE END Header */
 
 /* Includes ------------------------------------------------------------------*/
-#include "stm32f4xx.h"
+#ifdef STM32F429xx
+#include "stm32f4xx.h"                           /* STM32 CPU and HAL header           */
 #include "stm32f4xx_hal.h"
+#endif
+#ifdef STM32F767xx
+#include "stm32f7xx.h"                           /* STM32 CPU and HAL header           */
+#include "stm32f7xx_hal.h"
+#endif
+#ifdef STM32H743xx
+#include "stm32h7xx.h"                           /* STM32 CPU and HAL header           */
+#include "stm32h7xx_hal.h"
+#endif
 #include "usbd_def.h"
 #include "usbd_core.h"
 #include "usbd_bulk.h"
diff --git a/firmware/hw_layer/openblt/usbd_conf.h b/firmware/hw_layer/openblt/usbd_conf.h
index 80c3498403..86b159c890 100644
--- a/firmware/hw_layer/openblt/usbd_conf.h
+++ b/firmware/hw_layer/openblt/usbd_conf.h
@@ -31,8 +31,15 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
-#include "stm32f4xx.h"
-#include "stm32f4xx_hal.h"
+#ifdef STM32F429xx
+#include "stm32f4xx.h"                           /* STM32 CPU and HAL header           */
+#endif
+#ifdef STM32F767xx
+#include "stm32f7xx.h"                           /* STM32 CPU and HAL header           */
+#endif
+#ifdef STM32H743xx
+#include "stm32h7xx.h"                           /* STM32 CPU and HAL header           */
+#endif
 
 /* USER CODE BEGIN INCLUDE */
 
diff --git a/firmware/hw_layer/ports/stm32/stm32f7/openblt/lib/stm32f7xx_hal_conf.h b/firmware/hw_layer/ports/stm32/stm32f7/openblt/lib/stm32f7xx_hal_conf.h
index 4329b9b38b..7edc964399 100644
--- a/firmware/hw_layer/ports/stm32/stm32f7/openblt/lib/stm32f7xx_hal_conf.h
+++ b/firmware/hw_layer/ports/stm32/stm32f7/openblt/lib/stm32f7xx_hal_conf.h
@@ -82,7 +82,7 @@
 /* #define HAL_IRDA_MODULE_ENABLED   */
 /* #define HAL_SMARTCARD_MODULE_ENABLED   */
 /* #define HAL_WWDG_MODULE_ENABLED   */
-/* #define HAL_PCD_MODULE_ENABLED   */
+#define HAL_PCD_MODULE_ENABLED
 /* #define HAL_HCD_MODULE_ENABLED   */
 /* #define HAL_DFSDM_MODULE_ENABLED   */
 /* #define HAL_DSI_MODULE_ENABLED   */
diff --git a/firmware/hw_layer/ports/stm32/stm32f7/openblt/port.mk b/firmware/hw_layer/ports/stm32/stm32f7/openblt/port.mk
index ea24185cd3..333a50e3b3 100644
--- a/firmware/hw_layer/ports/stm32/stm32f7/openblt/port.mk
+++ b/firmware/hw_layer/ports/stm32/stm32f7/openblt/port.mk
@@ -5,11 +5,10 @@
 # exclude flash-layout.c as this one is directly included in a source file, when used.
 PROJ_FILES += $(filter-out $(OPENBLT_PORT_DIR)/flash_layout.c, $(call rwildcard, $(OPENBLT_PORT_DIR), *.c *.h *.s))
 # reuse ST32F7xx HAL and CMSIS from one of OpenBLT examples to avoid having copy in rusEFI git
-PROJ_FILES += $(filter-out uip, $(call rwildcard, $(OPENBLT_TRGT_DIR)/Demo/ARMCM7_STM32F7_Nucleo_F767ZI_GCC/Boot/lib/CMSIS/, *.c *.h *.s))
-PROJ_FILES += $(filter-out uip, $(call rwildcard, $(OPENBLT_TRGT_DIR)/Demo/ARMCM7_STM32F7_Nucleo_F767ZI_GCC/Boot/lib/STM32F7xx_HAL_Driver/, *.c *.h *.s))
-PROJ_FILES += $(wildcard $(OPENBLT_TRGT_DIR)/Demo/ARMCM7_STM32F7_Nucleo_F746ZG_GCC/Boot/lib/STM32F7xx_HAL_Driver/Src/stm32f7xx_hal_can.c)
-PROJ_FILES += $(wildcard $(OPENBLT_TRGT_DIR)/Demo/ARMCM7_STM32F7_Nucleo_F746ZG_GCC/Boot/lib/STM32F7xx_HAL_Driver/Inc/stm32f7xx_hal_can.h)
-
+PROJ_FILES += $(filter-out uip, $(call rwildcard, $(OPENBLT_TRGT_DIR)/Demo/ARMCM7_STM32F7_Nucleo_F746ZG_GCC/Boot/lib/CMSIS/, *.c *.h *.s))
+PROJ_FILES += $(filter-out uip, $(call rwildcard, $(OPENBLT_TRGT_DIR)/Demo/ARMCM7_STM32F7_Nucleo_F746ZG_GCC/Boot/lib/STM32F7xx_HAL_Driver/, *.c *.h *.s))
+# stm32f767xx.h
+PROJ_FILES += $(wildcard $(OPENBLT_TRGT_DIR)/Demo/ARMCM7_STM32F7_Nucleo_F767ZI_GCC/Boot/lib/CMSIS/Device/ST/STM32F7xx/Include/*.h)
 #|--------------------------------------------------------------------------------------|
 #| Specific options for toolchain binaries                                              |
 #|--------------------------------------------------------------------------------------|