Tomas Cerskus / USBDevice

USB device stack with Nucleo F401RE support. NOTE: the default clock config needs to be changed to in order for USB to work.

Fork of USBDevice by Tomas Cerskus

Slightly modified original USBDevice library to support F401RE.

On F401RE the data pins of your USB connector should be attached to PA12 (D+) and PA11(D-). It is also required to connect the +5V USB line to PA9.

F401RE requires 48MHz clock for USB. Therefore in order for this to work you will need to change the default clock settings:

Clock settings for USB

#include "stm32f4xx_hal.h"

RCC_OscInitTypeDef RCC_OscInitStruct;
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
RCC_OscInitStruct.HSIState = RCC_HSI_ON;
RCC_OscInitStruct.HSICalibrationValue = 16;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
RCC_OscInitStruct.PLL.PLLM = 16;
RCC_OscInitStruct.PLL.PLLN = 336;
RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV4;
RCC_OscInitStruct.PLL.PLLQ = 7;
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK) {
    error("RTC error: LSI clock initialization failed."); 
}

NOTE: Changing the clock frequency might affect the behavior of other libraries. I only tested the Serial library.

UPDATE: Clock settings should not to be changed anymore! Looks like the newer mbed library has the required clock enabled.

USBDevice/USBEndpoints.h@1:80ab0d068708, 2012-07-17 (annotated)

Committer:
samux
Date:
Tue Jul 17 14:30:29 2012 +0000
Revision:
1:80ab0d068708
Child:
8:335f2506f422
Update USBDevice lib

Who changed what in which revision?

UserRevisionLine numberNew contents of line
samux 1:80ab0d068708 1 /* Copyright (c) 2010-2011 mbed.org, MIT License
samux 1:80ab0d068708 2 *
samux 1:80ab0d068708 3 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
samux 1:80ab0d068708 4 * and associated documentation files (the "Software"), to deal in the Software without
samux 1:80ab0d068708 5 * restriction, including without limitation the rights to use, copy, modify, merge, publish,
samux 1:80ab0d068708 6 * distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the
samux 1:80ab0d068708 7 * Software is furnished to do so, subject to the following conditions:
samux 1:80ab0d068708 8 *
samux 1:80ab0d068708 9 * The above copyright notice and this permission notice shall be included in all copies or
samux 1:80ab0d068708 10 * substantial portions of the Software.
samux 1:80ab0d068708 11 *
samux 1:80ab0d068708 12 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
samux 1:80ab0d068708 13 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
samux 1:80ab0d068708 14 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
samux 1:80ab0d068708 15 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
samux 1:80ab0d068708 16 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
samux 1:80ab0d068708 17 */
samux 1:80ab0d068708 18
samux 1:80ab0d068708 19 #ifndef USBENDPOINTS_H
samux 1:80ab0d068708 20 #define USBENDPOINTS_H
samux 1:80ab0d068708 21
samux 1:80ab0d068708 22 /* SETUP packet size */
samux 1:80ab0d068708 23 #define SETUP_PACKET_SIZE (8)
samux 1:80ab0d068708 24
samux 1:80ab0d068708 25 /* Options flags for configuring endpoints */
samux 1:80ab0d068708 26 #define DEFAULT_OPTIONS (0)
samux 1:80ab0d068708 27 #define SINGLE_BUFFERED (1U << 0)
samux 1:80ab0d068708 28 #define ISOCHRONOUS (1U << 1)
samux 1:80ab0d068708 29 #define RATE_FEEDBACK_MODE (1U << 2) /* Interrupt endpoints only */
samux 1:80ab0d068708 30
samux 1:80ab0d068708 31 /* Endpoint transfer status, for endpoints > 0 */
samux 1:80ab0d068708 32 typedef enum {
samux 1:80ab0d068708 33 EP_COMPLETED, /* Transfer completed */
samux 1:80ab0d068708 34 EP_PENDING, /* Transfer in progress */
samux 1:80ab0d068708 35 EP_INVALID, /* Invalid parameter */
samux 1:80ab0d068708 36 EP_STALLED, /* Endpoint stalled */
samux 1:80ab0d068708 37 } EP_STATUS;
samux 1:80ab0d068708 38
samux 1:80ab0d068708 39 /* Include configuration for specific target */
samux 1:80ab0d068708 40 #if defined(TARGET_LPC1768) || defined(TARGET_LPC2368)
samux 1:80ab0d068708 41 #include "USBEndpoints_LPC17_LPC23.h"
samux 1:80ab0d068708 42 #elif defined(TARGET_LPC11U24)
samux 1:80ab0d068708 43 #include "USBEndpoints_LPC11U.h"
samux 1:80ab0d068708 44 #else
samux 1:80ab0d068708 45 #error "Unknown target type"
samux 1:80ab0d068708 46 #endif
samux 1:80ab0d068708 47
samux 1:80ab0d068708 48 #endif