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_LPC11U.h@24:4ed3e25c3edc, 2014-03-30 (annotated)

Committer:
tolaipner
Date:
Sun Mar 30 07:30:18 2014 +0000
Revision:
24:4ed3e25c3edc
Parent:
1:80ab0d068708 
Added Nucleo F401RE support

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 #define NUMBER_OF_LOGICAL_ENDPOINTS (5)
samux 1:80ab0d068708 20 #define NUMBER_OF_PHYSICAL_ENDPOINTS (NUMBER_OF_LOGICAL_ENDPOINTS * 2)
samux 1:80ab0d068708 21
samux 1:80ab0d068708 22 /* Define physical endpoint numbers */
samux 1:80ab0d068708 23
samux 1:80ab0d068708 24 /* Endpoint No. Type(s) MaxPacket DoubleBuffer */
samux 1:80ab0d068708 25 /* ---------------- ------------ ---------- --- */
samux 1:80ab0d068708 26 #define EP0OUT (0) /* Control 64 No */
samux 1:80ab0d068708 27 #define EP0IN (1) /* Control 64 No */
samux 1:80ab0d068708 28 #define EP1OUT (2) /* Int/Bulk/Iso 64/64/1023 Yes */
samux 1:80ab0d068708 29 #define EP1IN (3) /* Int/Bulk/Iso 64/64/1023 Yes */
samux 1:80ab0d068708 30 #define EP2OUT (4) /* Int/Bulk/Iso 64/64/1023 Yes */
samux 1:80ab0d068708 31 #define EP2IN (5) /* Int/Bulk/Iso 64/64/1023 Yes */
samux 1:80ab0d068708 32 #define EP3OUT (6) /* Int/Bulk/Iso 64/64/1023 Yes */
samux 1:80ab0d068708 33 #define EP3IN (7) /* Int/Bulk/Iso 64/64/1023 Yes */
samux 1:80ab0d068708 34 #define EP4OUT (8) /* Int/Bulk/Iso 64/64/1023 Yes */
samux 1:80ab0d068708 35 #define EP4IN (9) /* Int/Bulk/Iso 64/64/1023 Yes */
samux 1:80ab0d068708 36
samux 1:80ab0d068708 37 /* Maximum Packet sizes */
samux 1:80ab0d068708 38
samux 1:80ab0d068708 39 #define MAX_PACKET_SIZE_EP0 (64)
samux 1:80ab0d068708 40 #define MAX_PACKET_SIZE_EP1 (64) /* Int/Bulk */
samux 1:80ab0d068708 41 #define MAX_PACKET_SIZE_EP2 (64) /* Int/Bulk */
samux 1:80ab0d068708 42 #define MAX_PACKET_SIZE_EP3 (64) /* Int/Bulk */
samux 1:80ab0d068708 43 #define MAX_PACKET_SIZE_EP4 (64) /* Int/Bulk */
samux 1:80ab0d068708 44
samux 1:80ab0d068708 45 #define MAX_PACKET_SIZE_EP1_ISO (1023) /* Isochronous */
samux 1:80ab0d068708 46 #define MAX_PACKET_SIZE_EP2_ISO (1023) /* Isochronous */
samux 1:80ab0d068708 47 #define MAX_PACKET_SIZE_EP3_ISO (1023) /* Isochronous */
samux 1:80ab0d068708 48 #define MAX_PACKET_SIZE_EP4_ISO (1023) /* Isochronous */
samux 1:80ab0d068708 49
samux 1:80ab0d068708 50 /* Generic endpoints - intended to be portable accross devices */
samux 1:80ab0d068708 51 /* and be suitable for simple USB devices. */
samux 1:80ab0d068708 52
samux 1:80ab0d068708 53 /* Bulk endpoint */
samux 1:80ab0d068708 54 #define EPBULK_OUT (EP2OUT)
samux 1:80ab0d068708 55 #define EPBULK_IN (EP2IN)
samux 1:80ab0d068708 56 /* Interrupt endpoint */
samux 1:80ab0d068708 57 #define EPINT_OUT (EP1OUT)
samux 1:80ab0d068708 58 #define EPINT_IN (EP1IN)
samux 1:80ab0d068708 59 /* Isochronous endpoint */
samux 1:80ab0d068708 60 #define EPISO_OUT (EP3OUT)
samux 1:80ab0d068708 61 #define EPISO_IN (EP3IN)
samux 1:80ab0d068708 62
samux 1:80ab0d068708 63 #define MAX_PACKET_SIZE_EPBULK (MAX_PACKET_SIZE_EP2)
samux 1:80ab0d068708 64 #define MAX_PACKET_SIZE_EPINT (MAX_PACKET_SIZE_EP1)
samux 1:80ab0d068708 65 #define MAX_PACKET_SIZE_EPISO (MAX_PACKET_SIZE_EP3_ISO)