diff --git a/cores/arduino/stm32/usb_host/hid/usb_host_hid.c b/cores/arduino/stm32/usb_host/hid/usb_host_hid.c
new file mode 100644
index 0000000000..b7f96c169b
--- /dev/null
+++ b/cores/arduino/stm32/usb_host/hid/usb_host_hid.c
@@ -0,0 +1,5 @@
+#ifdef USBHOST
+
+#include "usbh_hid.c"
+
+#endif /* USBHOST */
diff --git a/cores/arduino/stm32/usb_host/hid/usb_host_hid_keybd.c b/cores/arduino/stm32/usb_host/hid/usb_host_hid_keybd.c
new file mode 100644
index 0000000000..f849d98b4b
--- /dev/null
+++ b/cores/arduino/stm32/usb_host/hid/usb_host_hid_keybd.c
@@ -0,0 +1,5 @@
+#ifdef USBHOST
+
+#include "usbh_hid_keybd.c"
+
+#endif /* USBHOST */
diff --git a/cores/arduino/stm32/usb_host/hid/usb_host_hid_mouse.c b/cores/arduino/stm32/usb_host/hid/usb_host_hid_mouse.c
new file mode 100644
index 0000000000..aeced61c8e
--- /dev/null
+++ b/cores/arduino/stm32/usb_host/hid/usb_host_hid_mouse.c
@@ -0,0 +1,5 @@
+#ifdef USBHOST
+
+#include "usbh_hid_mouse.c"
+
+#endif /* USBHOST */
diff --git a/cores/arduino/stm32/usb_host/hid/usb_host_hid_parser.c b/cores/arduino/stm32/usb_host/hid/usb_host_hid_parser.c
new file mode 100644
index 0000000000..d6c261ec10
--- /dev/null
+++ b/cores/arduino/stm32/usb_host/hid/usb_host_hid_parser.c
@@ -0,0 +1,5 @@
+#ifdef USBHOST
+
+#include "usbh_hid_parser.c"
+
+#endif /* USBHOST */
diff --git a/cores/arduino/stm32/usb_host/msc/usb_host_msc.c b/cores/arduino/stm32/usb_host/msc/usb_host_msc.c
new file mode 100644
index 0000000000..bb0ce9bb74
--- /dev/null
+++ b/cores/arduino/stm32/usb_host/msc/usb_host_msc.c
@@ -0,0 +1,5 @@
+#ifdef USBHOST
+
+#include "usbh_msc.c"
+
+#endif /* USBHOST */
diff --git a/cores/arduino/stm32/usb_host/msc/usb_host_msc_bot.c b/cores/arduino/stm32/usb_host/msc/usb_host_msc_bot.c
new file mode 100644
index 0000000000..8f0eccd59a
--- /dev/null
+++ b/cores/arduino/stm32/usb_host/msc/usb_host_msc_bot.c
@@ -0,0 +1,5 @@
+#ifdef USBHOST
+
+#include "usbh_msc_bot.c"
+
+#endif /* USBHOST */
diff --git a/cores/arduino/stm32/usb_host/msc/usb_host_msc_scsi.c b/cores/arduino/stm32/usb_host/msc/usb_host_msc_scsi.c
new file mode 100644
index 0000000000..ec810c1528
--- /dev/null
+++ b/cores/arduino/stm32/usb_host/msc/usb_host_msc_scsi.c
@@ -0,0 +1,5 @@
+#ifdef USBHOST
+
+#include "usbh_msc_scsi.c"
+
+#endif /* USBHOST */
diff --git a/cores/arduino/stm32/usb_host/usb_host_core.c b/cores/arduino/stm32/usb_host/usb_host_core.c
new file mode 100644
index 0000000000..279333e3a8
--- /dev/null
+++ b/cores/arduino/stm32/usb_host/usb_host_core.c
@@ -0,0 +1,5 @@
+#ifdef USBHOST
+
+#include "usbh_core.c"
+
+#endif /* USBHOST */
diff --git a/cores/arduino/stm32/usb_host/usb_host_ctlreq.c b/cores/arduino/stm32/usb_host/usb_host_ctlreq.c
new file mode 100644
index 0000000000..88af2efad5
--- /dev/null
+++ b/cores/arduino/stm32/usb_host/usb_host_ctlreq.c
@@ -0,0 +1,5 @@
+#ifdef USBHOST
+
+#include "usbh_ctlreq.c"
+
+#endif /* USBHOST */
diff --git a/cores/arduino/stm32/usb_host/usb_host_ioreq.c b/cores/arduino/stm32/usb_host/usb_host_ioreq.c
new file mode 100644
index 0000000000..f1b2c54042
--- /dev/null
+++ b/cores/arduino/stm32/usb_host/usb_host_ioreq.c
@@ -0,0 +1,5 @@
+#ifdef USBHOST
+
+#include "usbh_ioreq.c"
+
+#endif /* USBHOST */
diff --git a/cores/arduino/stm32/usb_host/usb_host_pipes.c b/cores/arduino/stm32/usb_host/usb_host_pipes.c
new file mode 100644
index 0000000000..45052806ff
--- /dev/null
+++ b/cores/arduino/stm32/usb_host/usb_host_pipes.c
@@ -0,0 +1,5 @@
+#ifdef USBHOST
+
+#include "usbh_pipes.c"
+
+#endif /* USBHOST */
diff --git a/cores/arduino/stm32/usb_host/usbh_conf.c b/cores/arduino/stm32/usb_host/usbh_conf.c
new file mode 100644
index 0000000000..0681ded4d1
--- /dev/null
+++ b/cores/arduino/stm32/usb_host/usbh_conf.c
@@ -0,0 +1,651 @@
+/* USER CODE BEGIN Header */
+/**
+ ******************************************************************************
+ * @file : Target/usbh_conf.c
+ * @version : v1.0_Cube
+ * @brief : This file implements the board support package for the USB host library
+ ******************************************************************************
+ * @attention
+ *
+ * © Copyright (c) 2020 STMicroelectronics.
+ * All rights reserved.
+ *
+ * This software component is licensed by ST under Ultimate Liberty license
+ * SLA0044, the "License"; You may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at:
+ * www.st.com/SLA0044
+ *
+ ******************************************************************************
+ */
+#ifdef USBHOST
+/* USER CODE END Header */
+
+/* Includes ------------------------------------------------------------------*/
+#include "usbh_core.h"
+#include "Arduino.h"
+
+#ifndef HAL_HCD_MODULE_ENABLED
+ #error "HAL_HCD_MODULE_ENABLED is required"
+#endif
+
+/* USER CODE BEGIN Includes */
+
+/* USER CODE END Includes */
+
+/* Private typedef -----------------------------------------------------------*/
+/* Private define ------------------------------------------------------------*/
+/* Private macro -------------------------------------------------------------*/
+
+/* USER CODE BEGIN PV */
+/* Private variables ---------------------------------------------------------*/
+
+/* USER CODE END PV */
+
+HCD_HandleTypeDef g_hhcd;
+
+/* USER CODE BEGIN 0 */
+
+/* USER CODE END 0 */
+
+/* USER CODE BEGIN PFP */
+/* Private function prototypes -----------------------------------------------*/
+USBH_StatusTypeDef USBH_Get_USB_Status(HAL_StatusTypeDef hal_status);
+
+/* USER CODE END PFP */
+
+/* Private functions ---------------------------------------------------------*/
+
+/* USER CODE BEGIN 1 */
+
+/* USER CODE END 1 */
+
+/*******************************************************************************
+ LL Driver Callbacks (HCD -> USB Host Library)
+*******************************************************************************/
+/* MSP Init */
+
+void HAL_HCD_MspInit(HCD_HandleTypeDef *hhcd)
+{
+ const PinMap *map = NULL;
+#if defined (USB_OTG_FS)
+ if (hhcd->Instance == USB_OTG_FS) {
+ /* Configure USB FS GPIOs */
+ map = PinMap_USB_OTG_FS;
+ while (map->pin != NC) {
+ pin_function(map->pin, map->function);
+ map++;
+ }
+
+ /* Peripheral clock enable */
+ __HAL_RCC_USB_OTG_FS_CLK_ENABLE();
+
+ /* Set USB FS Interrupt priority */
+ HAL_NVIC_SetPriority(OTG_FS_IRQn, USBH_IRQ_PRIO, USBH_IRQ_SUBPRIO);
+
+ /* Enable USB FS Interrupt */
+ HAL_NVIC_EnableIRQ(OTG_FS_IRQn);
+
+ if (hhcd->Init.low_power_enable == 1) {
+ /* Enable EXTI Line 18 for USB wakeup */
+#ifdef __HAL_USB_OTG_FS_WAKEUP_EXTI_CLEAR_FLAG
+ __HAL_USB_OTG_FS_WAKEUP_EXTI_CLEAR_FLAG();
+#endif
+#ifdef __HAL_USB_OTG_FS_WAKEUP_EXTI_ENABLE_RISING_EDGE
+ __HAL_USB_OTG_FS_WAKEUP_EXTI_ENABLE_RISING_EDGE();
+#endif
+ __HAL_USB_OTG_FS_WAKEUP_EXTI_ENABLE_IT();
+#if !defined(STM32L4xx)
+ /* Set EXTI Wakeup Interrupt priority */
+ HAL_NVIC_SetPriority(OTG_FS_WKUP_IRQn, USBH_IRQ_PRIO, USBH_IRQ_SUBPRIO);
+
+ /* Enable EXTI Interrupt */
+ HAL_NVIC_EnableIRQ(OTG_FS_WKUP_IRQn);
+#endif
+ }
+ }
+#endif
+#if defined(USB_OTG_HS)
+ if (hhcd->Instance == USB_OTG_HS) {
+ __HAL_RCC_GPIOB_CLK_ENABLE();
+ map = PinMap_USB_OTG_HS;
+ while (map->pin != NC) {
+ pin_function(map->pin, map->function);
+ map++;
+ }
+
+ /* Peripheral clock enable */
+ __HAL_RCC_USB_OTG_HS_CLK_ENABLE();
+
+ /* Set USB HS Interrupt priority */
+ HAL_NVIC_SetPriority(OTG_HS_IRQn, USBH_IRQ_PRIO, USBH_IRQ_SUBPRIO);
+
+ /* Enable USB HS Interrupt */
+ HAL_NVIC_EnableIRQ(OTG_HS_IRQn);
+
+ if (hhcd->Init.low_power_enable == 1) {
+ /* Enable EXTI Line 18 for USB wakeup */
+#ifdef __HAL_USB_OTG_HS_WAKEUP_EXTI_CLEAR_FLAG
+ __HAL_USB_OTG_HS_WAKEUP_EXTI_CLEAR_FLAG();
+#endif
+#ifdef __HAL_USB_OTG_HS_WAKEUP_EXTI_ENABLE_RISING_EDGE
+ __HAL_USB_OTG_HS_WAKEUP_EXTI_ENABLE_RISING_EDGE();
+#endif
+ __HAL_USB_OTG_HS_WAKEUP_EXTI_ENABLE_IT();
+#if !defined(STM32L4xx)
+ /* Set EXTI Wakeup Interrupt priority */
+ HAL_NVIC_SetPriority(OTG_HS_WKUP_IRQn, USBH_IRQ_PRIO, USBH_IRQ_SUBPRIO);
+
+ /* Enable EXTI Interrupt */
+ HAL_NVIC_EnableIRQ(OTG_HS_WKUP_IRQn);
+#endif
+ }
+ }
+#endif
+}
+
+void HAL_HCD_MspDeInit(HCD_HandleTypeDef *hhcd)
+{
+#if defined (USB_OTG_FS)
+ if (hhcd->Instance == USB_OTG_FS) {
+ /* Disable USB FS Clock */
+ __HAL_RCC_USB_OTG_FS_CLK_DISABLE();
+ HAL_NVIC_DisableIRQ(OTG_FS_IRQn);
+ }
+#endif
+#if defined (USB_OTG_HS)
+ if (hhcd->Instance == USB_OTG_HS) {
+ /* Disable USB HS Clocks */
+ __HAL_RCC_USB_OTG_HS_CLK_DISABLE();
+ HAL_NVIC_DisableIRQ(OTG_HS_IRQn);
+ }
+#endif /* USB_OTG_HS */
+}
+
+/**
+ * @brief SOF callback.
+ * @param hhcd: HCD handle
+ * @retval None
+ */
+void HAL_HCD_SOF_Callback(HCD_HandleTypeDef *hhcd)
+{
+ USBH_LL_IncTimer(hhcd->pData);
+}
+
+/**
+ * @brief SOF callback.
+ * @param hhcd: HCD handle
+ * @retval None
+ */
+void HAL_HCD_Connect_Callback(HCD_HandleTypeDef *hhcd)
+{
+ USBH_LL_Connect(hhcd->pData);
+}
+
+/**
+ * @brief SOF callback.
+ * @param hhcd: HCD handle
+ * @retval None
+ */
+void HAL_HCD_Disconnect_Callback(HCD_HandleTypeDef *hhcd)
+{
+ USBH_LL_Disconnect(hhcd->pData);
+}
+
+/**
+ * @brief Notify URB state change callback.
+ * @param hhcd: HCD handle
+ * @param chnum: channel number
+ * @param urb_state: state
+ * @retval None
+ */
+void HAL_HCD_HC_NotifyURBChange_Callback(HCD_HandleTypeDef *hhcd, uint8_t chnum, HCD_URBStateTypeDef urb_state)
+{
+ /* To be used with OS to sync URB state with the global state machine */
+#if (USBH_USE_OS == 1)
+ USBH_LL_NotifyURBChange(hhcd->pData);
+#endif
+}
+/**
+* @brief Port Port Enabled callback.
+ * @param hhcd: HCD handle
+ * @retval None
+ */
+void HAL_HCD_PortEnabled_Callback(HCD_HandleTypeDef *hhcd)
+{
+ USBH_LL_PortEnabled(hhcd->pData);
+}
+
+/**
+ * @brief Port Port Disabled callback.
+ * @param hhcd: HCD handle
+ * @retval None
+ */
+void HAL_HCD_PortDisabled_Callback(HCD_HandleTypeDef *hhcd)
+{
+ USBH_LL_PortDisabled(hhcd->pData);
+}
+
+/*******************************************************************************
+ LL Driver Interface (USB Host Library --> HCD)
+*******************************************************************************/
+
+/**
+ * @brief Initialize the low level portion of the host driver.
+ * @param phost: Host handle
+ * @retval USBH status
+ */
+USBH_StatusTypeDef USBH_LL_Init(USBH_HandleTypeDef *phost)
+{
+ /* Init USB_IP */
+ if (phost->id == HOST_FS) {
+ /* Link the driver to the stack. */
+ g_hhcd.pData = phost;
+ phost->pData = &g_hhcd;
+
+ g_hhcd.Instance = USB_OTG_FS;
+ g_hhcd.Init.Host_channels = 8;
+ g_hhcd.Init.speed = HCD_SPEED_FULL;
+ g_hhcd.Init.dma_enable = DISABLE;
+ g_hhcd.Init.phy_itface = HCD_PHY_EMBEDDED;
+ g_hhcd.Init.Sof_enable = DISABLE;
+ if (HAL_HCD_Init(&g_hhcd) != HAL_OK) {
+ // Error_Handler( );
+ return USBH_FAIL;
+ }
+
+ USBH_LL_SetTimer(phost, HAL_HCD_GetCurrentFrame(&g_hhcd));
+ } else if (phost->id == HOST_HS) {
+ /* Link the driver to the stack. */
+ g_hhcd.pData = phost;
+ phost->pData = &g_hhcd;
+
+ g_hhcd.Instance = USB_OTG_HS;
+ g_hhcd.Init.Host_channels = 12;
+ g_hhcd.Init.speed = HCD_SPEED_FULL;
+ g_hhcd.Init.dma_enable = DISABLE;
+#ifdef USE_USB_HS_IN_FS
+ g_hhcd.Init.phy_itface = USB_OTG_EMBEDDED_PHY;
+#else
+ g_hhcd.Init.phy_itface = USB_OTG_ULPI_PHY;
+#endif
+ g_hhcd.Init.Sof_enable = DISABLE;
+ g_hhcd.Init.low_power_enable = DISABLE;
+ g_hhcd.Init.vbus_sensing_enable = DISABLE;
+ g_hhcd.Init.use_external_vbus = DISABLE;
+
+ if (HAL_HCD_Init(&g_hhcd) != HAL_OK) {
+ Error_Handler();
+ }
+
+ USBH_LL_SetTimer(phost, HAL_HCD_GetCurrentFrame(&g_hhcd));
+ }
+ return USBH_OK;
+}
+
+/**
+ * @brief De-Initialize the low level portion of the host driver.
+ * @param phost: Host handle
+ * @retval USBH status
+ */
+USBH_StatusTypeDef USBH_LL_DeInit(USBH_HandleTypeDef *phost)
+{
+ HAL_StatusTypeDef hal_status = HAL_OK;
+ USBH_StatusTypeDef usb_status = USBH_OK;
+ hal_status = HAL_HCD_DeInit(phost->pData);
+ usb_status = USBH_Get_USB_Status(hal_status);
+ return usb_status;
+}
+
+/**
+ * @brief Start the low level portion of the host driver.
+ * @param phost: Host handle
+ * @retval USBH status
+ */
+USBH_StatusTypeDef USBH_LL_Start(USBH_HandleTypeDef *phost)
+{
+ HAL_StatusTypeDef hal_status = HAL_OK;
+ USBH_StatusTypeDef usb_status = USBH_OK;
+ hal_status = HAL_HCD_Start(phost->pData);
+ usb_status = USBH_Get_USB_Status(hal_status);
+ return usb_status;
+}
+
+/**
+ * @brief Stop the low level portion of the host driver.
+ * @param phost: Host handle
+ * @retval USBH status
+ */
+USBH_StatusTypeDef USBH_LL_Stop(USBH_HandleTypeDef *phost)
+{
+ HAL_StatusTypeDef hal_status = HAL_OK;
+ USBH_StatusTypeDef usb_status = USBH_OK;
+ hal_status = HAL_HCD_Stop(phost->pData);
+ usb_status = USBH_Get_USB_Status(hal_status);
+ return usb_status;
+}
+
+/**
+ * @brief Return the USB host speed from the low level driver.
+ * @param phost: Host handle
+ * @retval USBH speeds
+ */
+USBH_SpeedTypeDef USBH_LL_GetSpeed(USBH_HandleTypeDef *phost)
+{
+ USBH_SpeedTypeDef speed = USBH_SPEED_FULL;
+
+ switch (HAL_HCD_GetCurrentSpeed(phost->pData)) {
+ case 0 :
+ speed = USBH_SPEED_HIGH;
+ break;
+
+ case 1 :
+ speed = USBH_SPEED_FULL;
+ break;
+
+ case 2 :
+ speed = USBH_SPEED_LOW;
+ break;
+
+ default:
+ speed = USBH_SPEED_FULL;
+ break;
+ }
+ return speed;
+}
+
+/**
+ * @brief Reset the Host port of the low level driver.
+ * @param phost: Host handle
+ * @retval USBH status
+ */
+USBH_StatusTypeDef USBH_LL_ResetPort(USBH_HandleTypeDef *phost)
+{
+ HAL_StatusTypeDef hal_status = HAL_OK;
+ USBH_StatusTypeDef usb_status = USBH_OK;
+ hal_status = HAL_HCD_ResetPort(phost->pData);
+ usb_status = USBH_Get_USB_Status(hal_status);
+ return usb_status;
+}
+
+/**
+ * @brief Return the last transfered packet size.
+ * @param phost: Host handle
+ * @param pipe: Pipe index
+ * @retval Packet size
+ */
+uint32_t USBH_LL_GetLastXferSize(USBH_HandleTypeDef *phost, uint8_t pipe)
+{
+ return HAL_HCD_HC_GetXferCount(phost->pData, pipe);
+}
+
+/**
+ * @brief Open a pipe of the low level driver.
+ * @param phost: Host handle
+ * @param pipe_num: Pipe index
+ * @param epnum: Endpoint number
+ * @param dev_address: Device USB address
+ * @param speed: Device Speed
+ * @param ep_type: Endpoint type
+ * @param mps: Endpoint max packet size
+ * @retval USBH status
+ */
+USBH_StatusTypeDef USBH_LL_OpenPipe(USBH_HandleTypeDef *phost, uint8_t pipe_num, uint8_t epnum,
+ uint8_t dev_address, uint8_t speed, uint8_t ep_type, uint16_t mps)
+{
+ HAL_StatusTypeDef hal_status = HAL_OK;
+ USBH_StatusTypeDef usb_status = USBH_OK;
+
+ hal_status = HAL_HCD_HC_Init(phost->pData, pipe_num, epnum,
+ dev_address, speed, ep_type, mps);
+
+ usb_status = USBH_Get_USB_Status(hal_status);
+
+ return usb_status;
+}
+
+/**
+ * @brief Close a pipe of the low level driver.
+ * @param phost: Host handle
+ * @param pipe: Pipe index
+ * @retval USBH status
+ */
+USBH_StatusTypeDef USBH_LL_ClosePipe(USBH_HandleTypeDef *phost, uint8_t pipe)
+{
+ HAL_StatusTypeDef hal_status = HAL_OK;
+ USBH_StatusTypeDef usb_status = USBH_OK;
+
+ hal_status = HAL_HCD_HC_Halt(phost->pData, pipe);
+
+ usb_status = USBH_Get_USB_Status(hal_status);
+
+ return usb_status;
+}
+
+/**
+ * @brief Submit a new URB to the low level driver.
+ * @param phost: Host handle
+ * @param pipe: Pipe index
+ * This parameter can be a value from 1 to 15
+ * @param direction : Channel number
+ * This parameter can be one of the these values:
+ * 0 : Output
+ * 1 : Input
+ * @param ep_type : Endpoint Type
+ * This parameter can be one of the these values:
+ * @arg EP_TYPE_CTRL: Control type
+ * @arg EP_TYPE_ISOC: Isochrounous type
+ * @arg EP_TYPE_BULK: Bulk type
+ * @arg EP_TYPE_INTR: Interrupt type
+ * @param token : Endpoint Type
+ * This parameter can be one of the these values:
+ * @arg 0: PID_SETUP
+ * @arg 1: PID_DATA
+ * @param pbuff : pointer to URB data
+ * @param length : Length of URB data
+ * @param do_ping : activate do ping protocol (for high speed only)
+ * This parameter can be one of the these values:
+ * 0 : do ping inactive
+ * 1 : do ping active
+ * @retval Status
+ */
+USBH_StatusTypeDef USBH_LL_SubmitURB(USBH_HandleTypeDef *phost, uint8_t pipe, uint8_t direction,
+ uint8_t ep_type, uint8_t token, uint8_t *pbuff, uint16_t length,
+ uint8_t do_ping)
+{
+ HAL_StatusTypeDef hal_status = HAL_OK;
+ USBH_StatusTypeDef usb_status = USBH_OK;
+
+ hal_status = HAL_HCD_HC_SubmitRequest(phost->pData, pipe, direction,
+ ep_type, token, pbuff, length,
+ do_ping);
+ usb_status = USBH_Get_USB_Status(hal_status);
+
+ return usb_status;
+}
+
+/**
+ * @brief Get a URB state from the low level driver.
+ * @param phost: Host handle
+ * @param pipe: Pipe index
+ * This parameter can be a value from 1 to 15
+ * @retval URB state
+ * This parameter can be one of the these values:
+ * @arg URB_IDLE
+ * @arg URB_DONE
+ * @arg URB_NOTREADY
+ * @arg URB_NYET
+ * @arg URB_ERROR
+ * @arg URB_STALL
+ */
+USBH_URBStateTypeDef USBH_LL_GetURBState(USBH_HandleTypeDef *phost, uint8_t pipe)
+{
+ return (USBH_URBStateTypeDef)HAL_HCD_HC_GetURBState(phost->pData, pipe);
+}
+
+/**
+ * @brief Drive VBUS.
+ * @param phost: Host handle
+ * @param state : VBUS state
+ * This parameter can be one of the these values:
+ * 0 : VBUS Inactive
+ * 1 : VBUS Active
+ * @retval Status
+ */
+USBH_StatusTypeDef USBH_LL_DriverVBUS(USBH_HandleTypeDef *phost, uint8_t state)
+{
+
+ /* USER CODE BEGIN 0 */
+
+ /* USER CODE END 0*/
+
+ if (phost->id == HOST_FS) {
+ if (state == 0) {
+ /* Drive high Charge pump */
+ /* ToDo: Add IOE driver control */
+ /* USER CODE BEGIN DRIVE_HIGH_CHARGE_FOR_FS */
+
+ /* USER CODE END DRIVE_HIGH_CHARGE_FOR_FS */
+ } else {
+ /* Drive low Charge pump */
+ /* ToDo: Add IOE driver control */
+ /* USER CODE BEGIN DRIVE_LOW_CHARGE_FOR_FS */
+
+ /* USER CODE END DRIVE_LOW_CHARGE_FOR_FS */
+ }
+ }
+ HAL_Delay(200);
+ return USBH_OK;
+}
+
+/**
+ * @brief Set toggle for a pipe.
+ * @param phost: Host handle
+ * @param pipe: Pipe index
+ * @param toggle: toggle (0/1)
+ * @retval Status
+ */
+USBH_StatusTypeDef USBH_LL_SetToggle(USBH_HandleTypeDef *phost, uint8_t pipe, uint8_t toggle)
+{
+ HCD_HandleTypeDef *pHandle;
+ pHandle = phost->pData;
+
+ if (pHandle->hc[pipe].ep_is_in) {
+ pHandle->hc[pipe].toggle_in = toggle;
+ } else {
+ pHandle->hc[pipe].toggle_out = toggle;
+ }
+
+ return USBH_OK;
+}
+
+/**
+ * @brief Return the current toggle of a pipe.
+ * @param phost: Host handle
+ * @param pipe: Pipe index
+ * @retval toggle (0/1)
+ */
+uint8_t USBH_LL_GetToggle(USBH_HandleTypeDef *phost, uint8_t pipe)
+{
+ uint8_t toggle = 0;
+ HCD_HandleTypeDef *pHandle;
+ pHandle = phost->pData;
+
+ if (pHandle->hc[pipe].ep_is_in) {
+ toggle = pHandle->hc[pipe].toggle_in;
+ } else {
+ toggle = pHandle->hc[pipe].toggle_out;
+ }
+ return toggle;
+}
+
+/**
+ * @brief Delay routine for the USB Host Library
+ * @param Delay: Delay in ms
+ * @retval None
+ */
+void USBH_Delay(uint32_t Delay)
+{
+ HAL_Delay(Delay);
+}
+
+/**
+ * @brief Retuns the USB status depending on the HAL status:
+ * @param hal_status: HAL status
+ * @retval USB status
+ */
+USBH_StatusTypeDef USBH_Get_USB_Status(HAL_StatusTypeDef hal_status)
+{
+ USBH_StatusTypeDef usb_status = USBH_OK;
+
+ switch (hal_status) {
+ case HAL_OK :
+ usb_status = USBH_OK;
+ break;
+ case HAL_ERROR :
+ usb_status = USBH_FAIL;
+ break;
+ case HAL_BUSY :
+ usb_status = USBH_BUSY;
+ break;
+ case HAL_TIMEOUT :
+ usb_status = USBH_FAIL;
+ break;
+ default :
+ usb_status = USBH_FAIL;
+ break;
+ }
+ return usb_status;
+}
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
+
+
+/**
+ * @brief This function handles USB-On-The-Go FS/HS global interrupt request.
+ * @param None
+ * @retval None
+ */
+#ifdef USE_USBHOST_HS
+ void OTG_HS_IRQHandler(void)
+#elif defined(USB_OTG_FS)
+ void OTG_FS_IRQHandler(void)
+#else /* USB */
+ void USB_IRQHandler(void)
+#endif
+{
+ HAL_HCD_IRQHandler(&g_hhcd);
+}
+
+/**
+ * @brief This function handles USB OTG HCD Wakeup IRQ Handler.
+ * @param None
+ * @retval None
+ */
+#ifdef USE_USBHOST_HS
+ void OTG_HS_WKUP_IRQHandler(void)
+#elif defined(USB_OTG_FS)
+ void OTG_FS_WKUP_IRQHandler(void)
+#else
+ void USBWakeUp_IRQHandler(void)
+#endif
+{
+ if ((&g_hhcd)->Init.low_power_enable) {
+ /* Reset SLEEPDEEP bit of Cortex System Control Register */
+ SCB->SCR &= (uint32_t)~((uint32_t)(SCB_SCR_SLEEPDEEP_Msk | SCB_SCR_SLEEPONEXIT_Msk));
+
+ /* Configures system clock after wake-up from STOP: enable HSE, PLL and select
+ PLL as system clock source (HSE and PLL are disabled in STOP mode) */
+ SystemClock_Config();
+ }
+#if defined(USE_USBHOST_HS) && defined(__HAL_USB_OTG_HS_WAKEUP_EXTI_CLEAR_FLAG)
+ /* Clear EXTI pending Bit*/
+ __HAL_USB_OTG_HS_WAKEUP_EXTI_CLEAR_FLAG();
+#elif defined(USB_OTG_FS) && defined(__HAL_USB_OTG_FS_WAKEUP_EXTI_CLEAR_FLAG)
+ /* Clear EXTI pending Bit*/
+ __HAL_USB_OTG_FS_WAKEUP_EXTI_CLEAR_FLAG();
+#elif defined(__HAL_USB_WAKEUP_EXTI_CLEAR_FLAG)
+ __HAL_USB_WAKEUP_EXTI_CLEAR_FLAG();
+#endif
+}
+
+#endif /* USBHOST */
diff --git a/cores/arduino/stm32/usb_host/usbh_conf.h b/cores/arduino/stm32/usb_host/usbh_conf.h
new file mode 100644
index 0000000000..af1c1c5a2a
--- /dev/null
+++ b/cores/arduino/stm32/usb_host/usbh_conf.h
@@ -0,0 +1,213 @@
+/* USER CODE BEGIN Header */
+/**
+ ******************************************************************************
+ * @file : Target/usbh_conf.h
+ * @version : v1.0_Cube
+ * @brief : Header for usbh_conf.c file.
+ ******************************************************************************
+ * @attention
+ *
+ * © Copyright (c) 2020 STMicroelectronics.
+ * All rights reserved.
+ *
+ * This software component is licensed by ST under Ultimate Liberty license
+ * SLA0044, the "License"; You may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at:
+ * www.st.com/SLA0044
+ *
+ ******************************************************************************
+ */
+/* USER CODE END Header */
+
+/* Define to prevent recursive inclusion -------------------------------------*/
+#ifndef __USBH_CONF__H__
+#define __USBH_CONF__H__
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+// #define USBHOST
+
+#ifdef USBHOST
+/* Includes ------------------------------------------------------------------*/
+#include "stm32_def.h"
+
+/* Includes ------------------------------------------------------------------*/
+
+#include
+#include
+#include
+// #include "main.h"
+
+// #include "stm32f4xx.h"
+// #include "stm32f4xx_hal.h"
+
+/* USER CODE BEGIN INCLUDE */
+
+/* USER CODE END INCLUDE */
+
+/** @addtogroup STM32_USB_HOST_LIBRARY
+ * @{
+ */
+
+/** @defgroup USBH_CONF
+ * @brief usb host low level driver configuration file
+ * @{
+ */
+
+/** @defgroup USBH_CONF_Exported_Variables USBH_CONF_Exported_Variables
+ * @brief Public variables.
+ * @{
+ */
+
+/**
+ * @}
+ */
+
+/** @defgroup USBH_CONF_Exported_Defines USBH_CONF_Exported_Defines
+ * @brief Defines for configuration of the Usb host.
+ * @{
+ */
+
+/*---------- -----------*/
+#define USBH_MAX_NUM_ENDPOINTS 2U
+
+/*---------- -----------*/
+#define USBH_MAX_NUM_INTERFACES 2U
+
+/*---------- -----------*/
+#define USBH_MAX_NUM_CONFIGURATION 2U
+
+/*---------- -----------*/
+#define USBH_KEEP_CFG_DESCRIPTOR 2U
+
+/*---------- -----------*/
+#define USBH_MAX_NUM_SUPPORTED_CLASS 2U
+
+/*---------- -----------*/
+#define USBH_MAX_SIZE_CONFIGURATION 256U
+
+/*---------- -----------*/
+#define USBH_MAX_DATA_BUFFER 512U
+
+/*---------- -----------*/
+#define USBH_DEBUG_LEVEL 0U
+
+/*---------- -----------*/
+#define USBH_USE_OS 0U
+
+/****************************************/
+/* #define for FS and HS identification */
+#define HOST_HS 0
+#define HOST_FS 1
+
+/* Interrupt priority */
+#ifndef USBH_IRQ_PRIO
+#define USBH_IRQ_PRIO 0
+#endif /* USBH_IRQ_PRIO */
+#ifndef USBH_IRQ_SUBPRIO
+#define USBH_IRQ_SUBPRIO 0
+#endif /* USBH_IRQ_SUBPRIO */
+
+#if (USBH_USE_OS == 1)
+#include "cmsis_os.h"
+#define USBH_PROCESS_PRIO osPriorityNormal
+#define USBH_PROCESS_STACK_SIZE ((uint16_t)0)
+#endif /* (USBH_USE_OS == 1) */
+
+/**
+ * @}
+ */
+
+/** @defgroup USBH_CONF_Exported_Macros USBH_CONF_Exported_Macros
+ * @brief Aliases.
+ * @{
+ */
+
+/* Memory management macros */
+
+/** Alias for memory allocation. */
+#define USBH_malloc malloc
+
+/** Alias for memory release. */
+#define USBH_free free
+
+/** Alias for memory set. */
+#define USBH_memset memset
+
+/** Alias for memory copy. */
+#define USBH_memcpy memcpy
+
+/* DEBUG macros */
+
+#if (USBH_DEBUG_LEVEL > 0U)
+#define USBH_UsrLog(...) do { \
+ printf(__VA_ARGS__); \
+ printf("\n"); \
+} while (0)
+#else
+#define USBH_UsrLog(MSG, ...) do {} while (0)
+#endif
+
+#if (USBH_DEBUG_LEVEL > 1U)
+
+#define USBH_ErrLog(...) do { \
+ printf("ERROR: ") ; \
+ printf(__VA_ARGS__); \
+ printf("\n"); \
+} while (0)
+#else
+#define USBH_ErrLog(MSG, ...) do {} while (0)
+#endif
+
+#if (USBH_DEBUG_LEVEL > 2U)
+#define USBH_DbgLog(...) do { \
+ printf("DEBUG : ") ; \
+ printf(__VA_ARGS__); \
+ printf("\n"); \
+} while (0)
+#else
+#define USBH_DbgLog(MSG, ...) do {} while (0)
+#endif
+
+/**
+ * @}
+ */
+
+/** @defgroup USBH_CONF_Exported_Types USBH_CONF_Exported_Types
+ * @brief Types.
+ * @{
+ */
+
+/**
+ * @}
+ */
+
+/** @defgroup USBH_CONF_Exported_FunctionsPrototype USBH_CONF_Exported_FunctionsPrototype
+ * @brief Declaration of public functions for Usb host.
+ * @{
+ */
+
+/* Exported functions -------------------------------------------------------*/
+
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+#endif /* USBHOST */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __USBH_CONF__H__ */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
diff --git a/tools/platformio-build.py b/tools/platformio-build.py
index c9102f2290..fecdac1fc2 100644
--- a/tools/platformio-build.py
+++ b/tools/platformio-build.py
@@ -187,6 +187,7 @@ def configure_application_offset(mcu, upload_protocol):
join(FRAMEWORK_DIR, "cores", "arduino", "stm32", "OpenAMP"),
join(FRAMEWORK_DIR, "cores", "arduino", "stm32", "usb", "hid"),
join(FRAMEWORK_DIR, "cores", "arduino", "stm32", "usb", "cdc"),
+ join(FRAMEWORK_DIR, "cores", "arduino", "stm32", "usb_host"),
join(FRAMEWORK_DIR, "system", "Drivers", series + "_HAL_Driver", "Inc"),
join(FRAMEWORK_DIR, "system", "Drivers", series + "_HAL_Driver", "Src"),
join(FRAMEWORK_DIR, "system", series),
@@ -208,6 +209,64 @@ def configure_application_offset(mcu, upload_protocol):
"Core",
"Src",
),
+ join(
+ FRAMEWORK_DIR,
+ "system",
+ "Middlewares",
+ "ST",
+ "STM32_USB_Host_Library",
+ "Core",
+ "Inc",
+ ),
+ join(
+ FRAMEWORK_DIR,
+ "system",
+ "Middlewares",
+ "ST",
+ "STM32_USB_Host_Library",
+ "Core",
+ "Src",
+ ),
+ join(
+ FRAMEWORK_DIR,
+ "system",
+ "Middlewares",
+ "ST",
+ "STM32_USB_Host_Library",
+ "Class",
+ "MSC",
+ "Inc",
+ ),
+ join(
+ FRAMEWORK_DIR,
+ "system",
+ "Middlewares",
+ "ST",
+ "STM32_USB_Host_Library",
+ "Class",
+ "MSC",
+ "Src",
+ ),
+ join(
+ FRAMEWORK_DIR,
+ "system",
+ "Middlewares",
+ "ST",
+ "STM32_USB_Host_Library",
+ "Class",
+ "HID",
+ "Inc",
+ ),
+ join(
+ FRAMEWORK_DIR,
+ "system",
+ "Middlewares",
+ "ST",
+ "STM32_USB_Host_Library",
+ "Class",
+ "HID",
+ "Src",
+ ),
join(
FRAMEWORK_DIR,
"system",