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_STM32F4.h@24:4ed3e25c3edc, 2014-03-30 (annotated)

Committer:
tolaipner
Date:
Sun Mar 30 07:30:18 2014 +0000
Revision:
24:4ed3e25c3edc
Parent:
16:4f6df64750bd 
Added Nucleo F401RE support

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 16:4f6df64750bd 1 /* Copyright (c) 2010-2011 mbed.org, MIT License
mbed_official 16:4f6df64750bd 2 *
mbed_official 16:4f6df64750bd 3 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
mbed_official 16:4f6df64750bd 4 * and associated documentation files (the "Software"), to deal in the Software without
mbed_official 16:4f6df64750bd 5 * restriction, including without limitation the rights to use, copy, modify, merge, publish,
mbed_official 16:4f6df64750bd 6 * distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the
mbed_official 16:4f6df64750bd 7 * Software is furnished to do so, subject to the following conditions:
mbed_official 16:4f6df64750bd 8 *
mbed_official 16:4f6df64750bd 9 * The above copyright notice and this permission notice shall be included in all copies or
mbed_official 16:4f6df64750bd 10 * substantial portions of the Software.
mbed_official 16:4f6df64750bd 11 *
mbed_official 16:4f6df64750bd 12 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
mbed_official 16:4f6df64750bd 13 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
mbed_official 16:4f6df64750bd 14 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
mbed_official 16:4f6df64750bd 15 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
mbed_official 16:4f6df64750bd 16 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
mbed_official 16:4f6df64750bd 17 */
mbed_official 16:4f6df64750bd 18
mbed_official 16:4f6df64750bd 19 #define NUMBER_OF_LOGICAL_ENDPOINTS (4)
mbed_official 16:4f6df64750bd 20 #define NUMBER_OF_PHYSICAL_ENDPOINTS (NUMBER_OF_LOGICAL_ENDPOINTS * 2)
mbed_official 16:4f6df64750bd 21
mbed_official 16:4f6df64750bd 22 /* Define physical endpoint numbers */
mbed_official 16:4f6df64750bd 23
mbed_official 16:4f6df64750bd 24 /* Endpoint No. Type(s) MaxPacket DoubleBuffer */
mbed_official 16:4f6df64750bd 25 /* ---------------- ------------ ---------- --- */
mbed_official 16:4f6df64750bd 26 #define EP0OUT (0) /* Control 64 No */
mbed_official 16:4f6df64750bd 27 #define EP0IN (1) /* Control 64 No */
mbed_official 16:4f6df64750bd 28 #define EP1OUT (2) /* Int/Bulk/Iso 64/64/1023 Yes */
mbed_official 16:4f6df64750bd 29 #define EP1IN (3) /* Int/Bulk/Iso 64/64/1023 Yes */
mbed_official 16:4f6df64750bd 30 #define EP2OUT (4) /* Int/Bulk/Iso 64/64/1023 Yes */
mbed_official 16:4f6df64750bd 31 #define EP2IN (5) /* Int/Bulk/Iso 64/64/1023 Yes */
mbed_official 16:4f6df64750bd 32 #define EP3OUT (6) /* Int/Bulk/Iso 64/64/1023 Yes */
mbed_official 16:4f6df64750bd 33 #define EP3IN (7) /* Int/Bulk/Iso 64/64/1023 Yes */
mbed_official 16:4f6df64750bd 34
mbed_official 16:4f6df64750bd 35 /* Maximum Packet sizes */
mbed_official 16:4f6df64750bd 36
mbed_official 16:4f6df64750bd 37 #define MAX_PACKET_SIZE_EP0 (64)
mbed_official 16:4f6df64750bd 38 #define MAX_PACKET_SIZE_EP1 (64) /* Int/Bulk */
mbed_official 16:4f6df64750bd 39 #define MAX_PACKET_SIZE_EP2 (64) /* Int/Bulk */
mbed_official 16:4f6df64750bd 40 #define MAX_PACKET_SIZE_EP3 (64) /* Int/Bulk */
mbed_official 16:4f6df64750bd 41
mbed_official 16:4f6df64750bd 42 #define MAX_PACKET_SIZE_EP1_ISO (1023) /* Isochronous */
mbed_official 16:4f6df64750bd 43 #define MAX_PACKET_SIZE_EP2_ISO (1023) /* Isochronous */
mbed_official 16:4f6df64750bd 44 #define MAX_PACKET_SIZE_EP3_ISO (1023) /* Isochronous */
mbed_official 16:4f6df64750bd 45
mbed_official 16:4f6df64750bd 46 /* Generic endpoints - intended to be portable accross devices */
mbed_official 16:4f6df64750bd 47 /* and be suitable for simple USB devices. */
mbed_official 16:4f6df64750bd 48
mbed_official 16:4f6df64750bd 49 /* Bulk endpoint */
mbed_official 16:4f6df64750bd 50 #define EPBULK_OUT (EP2OUT)
mbed_official 16:4f6df64750bd 51 #define EPBULK_IN (EP2IN)
mbed_official 16:4f6df64750bd 52 /* Interrupt endpoint */
mbed_official 16:4f6df64750bd 53 #define EPINT_OUT (EP1OUT)
mbed_official 16:4f6df64750bd 54 #define EPINT_IN (EP1IN)
mbed_official 16:4f6df64750bd 55 /* Isochronous endpoint */
mbed_official 16:4f6df64750bd 56 #define EPISO_OUT (EP3OUT)
mbed_official 16:4f6df64750bd 57 #define EPISO_IN (EP3IN)
mbed_official 16:4f6df64750bd 58
mbed_official 16:4f6df64750bd 59 #define MAX_PACKET_SIZE_EPBULK (MAX_PACKET_SIZE_EP2)
mbed_official 16:4f6df64750bd 60 #define MAX_PACKET_SIZE_EPINT (MAX_PACKET_SIZE_EP1)
mbed_official 16:4f6df64750bd 61 #define MAX_PACKET_SIZE_EPISO (MAX_PACKET_SIZE_EP3_ISO)