diff --git a/hw/bsp/stm32f303disc/board.mk b/hw/bsp/stm32f303disc/board.mk
index 5b558c1ec..c81717c49 100644
--- a/hw/bsp/stm32f303disc/board.mk
+++ b/hw/bsp/stm32f303disc/board.mk
@@ -15,17 +15,23 @@ LD_FILE = hw/bsp/stm32f303disc/STM32F303VCTx_FLASH.ld
LDFLAGS += -mthumb -mcpu=cortex-m4
SRC_C += \
- hw/mcu/st/system-init/system_stm32f3xx.c
+ hw/mcu/st/system-init/system_stm32f3xx.c \
+ hw/mcu/st/stm32lib/STM32F3xx_HAL_Driver/Src/stm32f3xx_hal.c \
+ hw/mcu/st/stm32lib/STM32F3xx_HAL_Driver/Src/stm32f3xx_hal_cortex.c \
+ hw/mcu/st/stm32lib/STM32F3xx_HAL_Driver/Src/stm32f3xx_hal_rcc.c \
+ hw/mcu/st/stm32lib/STM32F3xx_HAL_Driver/Src/stm32f3xx_hal_gpio.c
SRC_S += \
hw/mcu/st/startup/stm32f3/startup_stm32f303xc.s
INC += \
+ -I$(TOP)/hw/bsp/stm32f303disc \
+ -I$(TOP)/hw/mcu/st/cmsis \
-I$(TOP)/hw/mcu/st/stm32lib/CMSIS/STM32F3xx/Include \
- -I$(TOP)/hw/mcu/st/cmsis
+ -I$(TOP)/hw/mcu/st/stm32lib/STM32F3xx_HAL_Driver/Inc
VENDOR = st
-CHIP_FAMILY = stm32f4
+CHIP_FAMILY = stm32f3
JLINK_DEVICE = stm32f303vc
diff --git a/hw/bsp/stm32f303disc/board_stm32f303disc.c b/hw/bsp/stm32f303disc/board_stm32f303disc.c
index 99419b310..00740acca 100644
--- a/hw/bsp/stm32f303disc/board_stm32f303disc.c
+++ b/hw/bsp/stm32f303disc/board_stm32f303disc.c
@@ -25,37 +25,33 @@
*/
#include "../board.h"
-#include "stm32f3xx.h"
-
#include "tusb_option.h"
+#include "stm32f3xx.h"
+#include "stm32f3xx_hal_conf.h"
+
void board_init(void)
{
- // Init the LED on PD14
- RCC->AHB1ENR |= RCC_AHB1ENR_GPIODEN;
- GPIOD->MODER |= GPIO_MODER_MODE14_0;
+ RCC_ClkInitTypeDef RCC_ClkInitStruct;
+ RCC_OscInitTypeDef RCC_OscInitStruct;
- // USB Clock init
- // PLL input- 8 MHz (External oscillator clock; HSI clock tolerance isn't
- // tight enough- 1%, need 0.25%)
- // VCO input- 1 to 2 MHz (2 MHz, M = 4)
- // VCO output- 100 to 432 MHz (144 MHz, N = 72)
- // Main PLL out- <= 180 MHz (18 MHz, P = 3- divides by 8)
- // USB PLL out- 48 MHz (Q = 3)
- RCC->PLLCFGR = RCC_PLLCFGR_PLLSRC_HSE | (3 << RCC_PLLCFGR_PLLQ_Pos) | \
- (3 << RCC_PLLCFGR_PLLP_Pos) | (72 << RCC_PLLCFGR_PLLN_Pos) | \
- (4 << RCC_PLLCFGR_PLLM_Pos);
+ /* Enable HSE Oscillator and activate PLL with HSE as source */
+ RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
+ RCC_OscInitStruct.HSEState = RCC_HSE_ON;
+ RCC_OscInitStruct.HSEPredivValue = RCC_HSE_PREDIV_DIV1;
+ RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
+ RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
+ RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL9;
+ HAL_RCC_OscConfig(&RCC_OscInitStruct);
- // Wait for external clock to become ready
- RCC->CR |= RCC_CR_HSEON;
- while(!(RCC->CR & RCC_CR_HSERDY_Msk));
-
- // Wait for PLL to become ready
- RCC->CR |= RCC_CR_PLLON;
- while(!(RCC->CR & RCC_CR_PLLRDY_Msk));
-
- // Switch clocks!
- RCC->CFGR |= RCC_CFGR_SW_1;
+ /* Select PLL as system clock source and configure the HCLK, PCLK1 and PCLK2
+ clocks dividers */
+ RCC_ClkInitStruct.ClockType = (RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2);
+ RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
+ RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
+ RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;
+ RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
+ (void) HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2);
// Notify runtime of frequency change.
SystemCoreClockUpdate();
@@ -64,6 +60,19 @@ void board_init(void)
SysTick_Config(SystemCoreClock / 1000);
#endif
+ /* -1- Enable GPIOE Clock (to be able to program the configuration registers) */
+ __HAL_RCC_GPIOE_CLK_ENABLE();
+
+ /* -2- Configure PE.8 to PE.15 IOs in output push-pull mode to drive external LEDs */
+ static GPIO_InitTypeDef GPIO_InitStruct;
+ GPIO_InitStruct.Pin = GPIO_PIN_9;
+ GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
+ GPIO_InitStruct.Pull = GPIO_PULLUP;
+ GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
+
+ HAL_GPIO_Init(GPIOE, &GPIO_InitStruct);
+
+#if 0
RCC->AHB2ENR |= RCC_AHB2ENR_OTGFSEN;
// USB Pin Init
@@ -79,19 +88,15 @@ void board_init(void)
// Pullup required on ID, despite the manual claiming there's an
// internal pullup already (page 1245, Rev 17)
GPIOA->PUPDR |= GPIO_PUPDR_PUPD10_0;
+#endif
}
void board_led_control(bool state)
{
- if (!state) {
- GPIOD->BSRR = GPIO_BSRR_BR14;
- } else {
- GPIOD->BSRR = GPIO_BSRR_BS14;
- }
+ HAL_GPIO_WritePin(GPIOE, GPIO_PIN_9, state);
}
-
/*------------------------------------------------------------------*/
/* TUSB HAL MILLISECOND
*------------------------------------------------------------------*/
diff --git a/hw/bsp/stm32f303disc/stm32f3xx_hal_conf.h b/hw/bsp/stm32f303disc/stm32f3xx_hal_conf.h
new file mode 100644
index 000000000..38e7a4327
--- /dev/null
+++ b/hw/bsp/stm32f303disc/stm32f3xx_hal_conf.h
@@ -0,0 +1,312 @@
+/**
+ ******************************************************************************
+ * @file GPIO/GPIO_IOToggle/Inc/stm32f3xx_hal_conf.h
+ * @author MCD Application Team
+ * @brief HAL configuration file.
+ ******************************************************************************
+ * @attention
+ *
+ *
© COPYRIGHT(c) 2016 STMicroelectronics
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * 3. Neither the name of STMicroelectronics nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ ******************************************************************************
+ */
+
+/* Define to prevent recursive inclusion -------------------------------------*/
+#ifndef __STM32F3xx_HAL_CONF_H
+#define __STM32F3xx_HAL_CONF_H
+
+#ifdef __cplusplus
+ extern "C" {
+#endif
+
+/* Exported types ------------------------------------------------------------*/
+/* Exported constants --------------------------------------------------------*/
+
+/* ########################## Module Selection ############################## */
+/**
+ * @brief This is the list of modules to be used in the HAL driver
+ */
+#define HAL_MODULE_ENABLED
+//#define HAL_ADC_MODULE_ENABLED
+//#define HAL_CAN_MODULE_ENABLED
+//#define HAL_CAN_LEGACY_MODULE_ENABLED
+//#define HAL_CEC_MODULE_ENABLED
+//#define HAL_COMP_MODULE_ENABLED
+#define HAL_CORTEX_MODULE_ENABLED
+#define HAL_CRC_MODULE_ENABLED
+//#define HAL_DAC_MODULE_ENABLED
+#define HAL_DMA_MODULE_ENABLED
+#define HAL_FLASH_MODULE_ENABLED
+#define HAL_GPIO_MODULE_ENABLED
+//#define HAL_HRTIM_MODULE_ENABLED
+//#define HAL_I2C_MODULE_ENABLED
+//#define HAL_I2S_MODULE_ENABLED
+//#define HAL_IRDA_MODULE_ENABLED
+//#define HAL_IWDG_MODULE_ENABLED
+//#define HAL_OPAMP_MODULE_ENABLED
+//#define HAL_PWR_MODULE_ENABLED
+#define HAL_RCC_MODULE_ENABLED
+//#define HAL_RTC_MODULE_ENABLED
+//#define HAL_SDADC_MODULE_ENABLED
+//#define HAL_SMARTCARD_MODULE_ENABLED
+//#define HAL_SPI_MODULE_ENABLED
+//#define HAL_TIM_MODULE_ENABLED
+#define HAL_UART_MODULE_ENABLED
+#define HAL_USART_MODULE_ENABLED
+//#define HAL_WWDG_MODULE_ENABLED
+//#define HAL_PPP_MODULE_ENABLED
+
+/* ########################## HSE/HSI Values adaptation ##################### */
+/**
+ * @brief Adjust the value of External High Speed oscillator (HSE) used in your application.
+ * This value is used by the RCC HAL module to compute the system frequency
+ * (when HSE is used as system clock source, directly or through the PLL).
+ */
+#if !defined (HSE_VALUE)
+ #define HSE_VALUE (8000000U) /*!< Value of the External oscillator in Hz */
+#endif /* HSE_VALUE */
+
+/**
+ * @brief In the following line adjust the External High Speed oscillator (HSE) Startup
+ * Timeout value
+ */
+#if !defined (HSE_STARTUP_TIMEOUT)
+ #define HSE_STARTUP_TIMEOUT (100U) /*!< Time out for HSE start up, in ms */
+#endif /* HSE_STARTUP_TIMEOUT */
+
+/**
+ * @brief Internal High Speed oscillator (HSI) value.
+ * This value is used by the RCC HAL module to compute the system frequency
+ * (when HSI is used as system clock source, directly or through the PLL).
+ */
+#if !defined (HSI_VALUE)
+ #define HSI_VALUE (8000000U) /*!< Value of the Internal oscillator in Hz*/
+#endif /* HSI_VALUE */
+
+/**
+ * @brief In the following line adjust the Internal High Speed oscillator (HSI) Startup
+ * Timeout value
+ */
+#if !defined (HSI_STARTUP_TIMEOUT)
+ #define HSI_STARTUP_TIMEOUT (5000U) /*!< Time out for HSI start up */
+#endif /* HSI_STARTUP_TIMEOUT */
+
+/**
+ * @brief Internal Low Speed oscillator (LSI) value.
+ */
+#if !defined (LSI_VALUE)
+ #define LSI_VALUE (40000U)
+#endif /* LSI_VALUE */ /*!< Value of the Internal Low Speed oscillator in Hz
+ The real value may vary depending on the variations
+ in voltage and temperature. */
+/**
+ * @brief External Low Speed oscillator (LSE) value.
+ */
+#if !defined (LSE_VALUE)
+ #define LSE_VALUE (32768U) /*!< Value of the External Low Speed oscillator in Hz */
+#endif /* LSE_VALUE */
+
+/**
+ * @brief Time out for LSE start up value in ms.
+ */
+#if !defined (LSE_STARTUP_TIMEOUT)
+ #define LSE_STARTUP_TIMEOUT (5000U) /*!< Time out for LSE start up, in ms */
+#endif /* LSE_STARTUP_TIMEOUT */
+
+/**
+ * @brief External clock source for I2S peripheral
+ * This value is used by the I2S HAL module to compute the I2S clock source
+ * frequency, this source is inserted directly through I2S_CKIN pad.
+ * - External clock generated through external PLL component on EVAL 303 (based on MCO or crystal)
+ * - External clock not generated on EVAL 373
+ */
+#if !defined (EXTERNAL_CLOCK_VALUE)
+ #define EXTERNAL_CLOCK_VALUE (8000000U) /*!< Value of the External oscillator in Hz*/
+#endif /* EXTERNAL_CLOCK_VALUE */
+
+/* Tip: To avoid modifying this file each time you need to use different HSE,
+ === you can define the HSE value in your toolchain compiler preprocessor. */
+
+/* ########################### System Configuration ######################### */
+/**
+ * @brief This is the HAL system configuration section
+ */
+#define VDD_VALUE (3300U) /*!< Value of VDD in mv */
+#define TICK_INT_PRIORITY ((uint32_t)(1U<<__NVIC_PRIO_BITS) - 1U) /*!< tick interrupt priority (lowest by default) */
+#define USE_RTOS 0U
+#define PREFETCH_ENABLE 1U
+#define INSTRUCTION_CACHE_ENABLE 0U
+#define DATA_CACHE_ENABLE 0U
+#define USE_SPI_CRC 1U
+
+/* ########################## Assert Selection ############################## */
+/**
+ * @brief Uncomment the line below to expanse the "assert_param" macro in the
+ * HAL drivers code
+ */
+/*#define USE_FULL_ASSERT 1*/
+
+/* Includes ------------------------------------------------------------------*/
+/**
+ * @brief Include module's header file
+ */
+
+#ifdef HAL_RCC_MODULE_ENABLED
+ #include "stm32f3xx_hal_rcc.h"
+#endif /* HAL_RCC_MODULE_ENABLED */
+
+#ifdef HAL_GPIO_MODULE_ENABLED
+ #include "stm32f3xx_hal_gpio.h"
+#endif /* HAL_GPIO_MODULE_ENABLED */
+
+#ifdef HAL_DMA_MODULE_ENABLED
+ #include "stm32f3xx_hal_dma.h"
+#endif /* HAL_DMA_MODULE_ENABLED */
+
+#ifdef HAL_CORTEX_MODULE_ENABLED
+ #include "stm32f3xx_hal_cortex.h"
+#endif /* HAL_CORTEX_MODULE_ENABLED */
+
+#ifdef HAL_ADC_MODULE_ENABLED
+ #include "stm32f3xx_hal_adc.h"
+#endif /* HAL_ADC_MODULE_ENABLED */
+
+#ifdef HAL_CAN_MODULE_ENABLED
+ #include "stm32f3xx_hal_can.h"
+#endif /* HAL_CAN_MODULE_ENABLED */
+
+#ifdef HAL_CAN_LEGACY_MODULE_ENABLED
+ #include "stm32f3xx_hal_can_legacy.h"
+#endif /* HAL_CAN_LEGACY_MODULE_ENABLED */
+
+#ifdef HAL_CEC_MODULE_ENABLED
+ #include "stm32f3xx_hal_cec.h"
+#endif /* HAL_CEC_MODULE_ENABLED */
+
+#ifdef HAL_COMP_MODULE_ENABLED
+ #include "stm32f3xx_hal_comp.h"
+#endif /* HAL_COMP_MODULE_ENABLED */
+
+#ifdef HAL_CRC_MODULE_ENABLED
+ #include "stm32f3xx_hal_crc.h"
+#endif /* HAL_CRC_MODULE_ENABLED */
+
+#ifdef HAL_DAC_MODULE_ENABLED
+ #include "stm32f3xx_hal_dac.h"
+#endif /* HAL_DAC_MODULE_ENABLED */
+
+#ifdef HAL_FLASH_MODULE_ENABLED
+ #include "stm32f3xx_hal_flash.h"
+#endif /* HAL_FLASH_MODULE_ENABLED */
+
+#ifdef HAL_HRTIM_MODULE_ENABLED
+ #include "stm32f3xx_hal_hrtim.h"
+#endif /* HAL_HRTIM_MODULE_ENABLED */
+
+#ifdef HAL_I2C_MODULE_ENABLED
+ #include "stm32f3xx_hal_i2c.h"
+#endif /* HAL_I2C_MODULE_ENABLED */
+
+#ifdef HAL_I2S_MODULE_ENABLED
+ #include "stm32f3xx_hal_i2s.h"
+#endif /* HAL_I2S_MODULE_ENABLED */
+
+#ifdef HAL_IRDA_MODULE_ENABLED
+ #include "stm32f3xx_hal_irda.h"
+#endif /* HAL_IRDA_MODULE_ENABLED */
+
+#ifdef HAL_IWDG_MODULE_ENABLED
+ #include "stm32f3xx_hal_iwdg.h"
+#endif /* HAL_IWDG_MODULE_ENABLED */
+
+#ifdef HAL_OPAMP_MODULE_ENABLED
+ #include "stm32f3xx_hal_opamp.h"
+#endif /* HAL_OPAMP_MODULE_ENABLED */
+
+#ifdef HAL_PWR_MODULE_ENABLED
+ #include "stm32f3xx_hal_pwr.h"
+#endif /* HAL_PWR_MODULE_ENABLED */
+
+#ifdef HAL_RTC_MODULE_ENABLED
+ #include "stm32f3xx_hal_rtc.h"
+#endif /* HAL_RTC_MODULE_ENABLED */
+
+#ifdef HAL_SDADC_MODULE_ENABLED
+ #include "stm32f3xx_hal_sdadc.h"
+#endif /* HAL_SDADC_MODULE_ENABLED */
+
+#ifdef HAL_SMARTCARD_MODULE_ENABLED
+ #include "stm32f3xx_hal_smartcard.h"
+#endif /* HAL_SMARTCARD_MODULE_ENABLED */
+
+#ifdef HAL_SPI_MODULE_ENABLED
+ #include "stm32f3xx_hal_spi.h"
+#endif /* HAL_SPI_MODULE_ENABLED */
+
+#ifdef HAL_TIM_MODULE_ENABLED
+ #include "stm32f3xx_hal_tim.h"
+#endif /* HAL_TIM_MODULE_ENABLED */
+
+#ifdef HAL_TSC_MODULE_ENABLED
+ #include "stm32f3xx_hal_tsc.h"
+#endif /* HAL_TSC_MODULE_ENABLED */
+
+#ifdef HAL_UART_MODULE_ENABLED
+ #include "stm32f3xx_hal_uart.h"
+#endif /* HAL_UART_MODULE_ENABLED */
+
+#ifdef HAL_USART_MODULE_ENABLED
+ #include "stm32f3xx_hal_usart.h"
+#endif /* HAL_USART_MODULE_ENABLED */
+
+#ifdef HAL_WWDG_MODULE_ENABLED
+ #include "stm32f3xx_hal_wwdg.h"
+#endif /* HAL_WWDG_MODULE_ENABLED */
+
+/* Exported macro ------------------------------------------------------------*/
+#ifdef USE_FULL_ASSERT
+/**
+ * @brief The assert_param macro is used for function's parameters check.
+ * @param expr: If expr is false, it calls assert_failed function
+ * which reports the name of the source file and the source
+ * line number of the call that failed.
+ * If expr is true, it returns no value.
+ * @retval None
+ */
+ #define assert_param(expr) ((expr) ? (void)0U : assert_failed((char *)__FILE__, __LINE__))
+/* Exported functions ------------------------------------------------------- */
+ void assert_failed(char* file, uint32_t line);
+#else
+ #define assert_param(expr) ((void)0U)
+#endif /* USE_FULL_ASSERT */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __STM32F3xx_HAL_CONF_H */
+
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
diff --git a/src/device/dcd.h b/src/device/dcd.h
index 95a187298..e73f24277 100644
--- a/src/device/dcd.h
+++ b/src/device/dcd.h
@@ -97,21 +97,6 @@ void dcd_set_config (uint8_t rhport, uint8_t config_num);
// Get current frame number
uint32_t dcd_get_frame_number(uint8_t rhport);
-/*------------------------------------------------------------------*/
-/* Event Function
- * Called by DCD to notify USBD
- *------------------------------------------------------------------*/
-void dcd_event_handler(dcd_event_t const * event, bool in_isr);
-
-// helper to send bus signal event
-void dcd_event_bus_signal (uint8_t rhport, dcd_eventid_t eid, bool in_isr);
-
-// helper to send setup received
-void dcd_event_setup_received(uint8_t rhport, uint8_t const * setup, bool in_isr);
-
-// helper to send transfer complete event
-void dcd_event_xfer_complete (uint8_t rhport, uint8_t ep_addr, uint32_t xferred_bytes, uint8_t result, bool in_isr);
-
/*------------------------------------------------------------------*/
/* Endpoint API
* - open : Configure endpoint's registers
@@ -130,6 +115,21 @@ void dcd_edpt_stall (uint8_t rhport, uint8_t ep_addr);
void dcd_edpt_clear_stall (uint8_t rhport, uint8_t ep_addr);
bool dcd_edpt_stalled (uint8_t rhport, uint8_t ep_addr);
+/*------------------------------------------------------------------*/
+/* Event Function
+ * Called by DCD to notify USBD
+ *------------------------------------------------------------------*/
+void dcd_event_handler(dcd_event_t const * event, bool in_isr);
+
+// helper to send bus signal event
+void dcd_event_bus_signal (uint8_t rhport, dcd_eventid_t eid, bool in_isr);
+
+// helper to send setup received
+void dcd_event_setup_received(uint8_t rhport, uint8_t const * setup, bool in_isr);
+
+// helper to send transfer complete event
+void dcd_event_xfer_complete (uint8_t rhport, uint8_t ep_addr, uint32_t xferred_bytes, uint8_t result, bool in_isr);
+
#ifdef __cplusplus
}
#endif
diff --git a/src/portable/readme.md b/src/portable/readme.md
deleted file mode 100644
index a3e8557dc..000000000
--- a/src/portable/readme.md
+++ /dev/null
@@ -1,4 +0,0 @@
-To port tinyusb to support new MCU you need to implement all API in the
-- tusb_hal.h (mandatory for both device and host stack)
-- device/dcd.h for device stack
-- host/hcd.h for host stack
diff --git a/src/portable/st/stm32f3/dcd_stm32f3.c b/src/portable/st/stm32f3/dcd_stm32f3.c
new file mode 100644
index 000000000..20dd92fc5
--- /dev/null
+++ b/src/portable/st/stm32f3/dcd_stm32f3.c
@@ -0,0 +1,82 @@
+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2018, hathach (tinyusb.org)
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ *
+ * This file is part of the TinyUSB stack.
+ */
+
+#include "tusb_option.h"
+
+#if TUSB_OPT_DEVICE_ENABLED && CFG_TUSB_MCU == OPT_MCU_STM32F3
+
+#include "device/dcd.h"
+#include "stm32f3xx.h"
+
+//--------------------------------------------------------------------+
+// MACRO TYPEDEF CONSTANT ENUM DECLARATION
+//--------------------------------------------------------------------+
+
+
+bool dcd_init (uint8_t rhport)
+{
+ return true;
+}
+
+// Enable device interrupt
+void dcd_int_enable (uint8_t rhport)
+{}
+
+// Disable device interrupt
+void dcd_int_disable(uint8_t rhport)
+{}
+
+// Receive Set Address request, mcu port must also include status IN response
+void dcd_set_address(uint8_t rhport, uint8_t dev_addr)
+{}
+
+// Receive Set Config request
+void dcd_set_config (uint8_t rhport, uint8_t config_num)
+{}
+
+// Get current frame number
+uint32_t dcd_get_frame_number(uint8_t rhport)
+{ return 0; }
+
+bool dcd_edpt_open (uint8_t rhport, tusb_desc_endpoint_t const * p_endpoint_desc)
+{
+ return false;
+}
+bool dcd_edpt_xfer (uint8_t rhport, uint8_t ep_addr, uint8_t * buffer, uint16_t total_bytes)
+{ return false;}
+bool dcd_edpt_busy (uint8_t rhport, uint8_t ep_addr)
+{ return false;}
+
+void dcd_edpt_stall (uint8_t rhport, uint8_t ep_addr)
+{}
+void dcd_edpt_clear_stall (uint8_t rhport, uint8_t ep_addr)
+{}
+bool dcd_edpt_stalled (uint8_t rhport, uint8_t ep_addr)
+{
+ return false;}
+
+#endif
+
diff --git a/src/portable/st/stm32f4/dcd_stm32f4.c b/src/portable/st/stm32f4/dcd_stm32f4.c
index d99e455ed..472a63f32 100644
--- a/src/portable/st/stm32f4/dcd_stm32f4.c
+++ b/src/portable/st/stm32f4/dcd_stm32f4.c
@@ -26,7 +26,7 @@
#include "tusb_option.h"
-#if TUSB_OPT_DEVICE_ENABLED && (CFG_TUSB_MCU == OPT_MCU_STM32F4 || CFG_TUSB_MCU == OPT_MCU_STM32F3)
+#if TUSB_OPT_DEVICE_ENABLED && CFG_TUSB_MCU == OPT_MCU_STM32F4
#include "device/dcd.h"
#include "stm32f4xx.h"