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.

USBMIDI/USBMIDI.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 #ifndef USBMIDI_H
samux 1:80ab0d068708 20 #define USBMIDI_H
samux 1:80ab0d068708 21
samux 1:80ab0d068708 22 /* These headers are included for child class. */
samux 1:80ab0d068708 23 #include "USBEndpoints.h"
samux 1:80ab0d068708 24 #include "USBDescriptor.h"
samux 1:80ab0d068708 25 #include "USBDevice_Types.h"
samux 1:80ab0d068708 26
samux 1:80ab0d068708 27 #include "USBDevice.h"
samux 1:80ab0d068708 28 #include "MIDIMessage.h"
samux 1:80ab0d068708 29
samux 1:80ab0d068708 30 #define DEFAULT_CONFIGURATION (1)
samux 1:80ab0d068708 31
samux 1:80ab0d068708 32 /**
samux 1:80ab0d068708 33 * USBMIDI example
samux 1:80ab0d068708 34 *
samux 1:80ab0d068708 35 * @code
samux 1:80ab0d068708 36 * #include "mbed.h"
samux 1:80ab0d068708 37 * #include "USBMIDI.h"
samux 1:80ab0d068708 38 *
samux 1:80ab0d068708 39 * USBMIDI midi;
samux 1:80ab0d068708 40 *
samux 1:80ab0d068708 41 * int main() {
samux 1:80ab0d068708 42 * while (1) {
samux 1:80ab0d068708 43 * for(int i=48; i<83; i++) { // send some messages!
samux 1:80ab0d068708 44 * midi.write(MIDIMessage::NoteOn(i));
samux 1:80ab0d068708 45 * wait(0.25);
samux 1:80ab0d068708 46 * midi.write(MIDIMessage::NoteOff(i));
samux 1:80ab0d068708 47 * wait(0.5);
samux 1:80ab0d068708 48 * }
samux 1:80ab0d068708 49 * }
samux 1:80ab0d068708 50 * }
samux 1:80ab0d068708 51 * @endcode
samux 1:80ab0d068708 52 */
samux 1:80ab0d068708 53 class USBMIDI: public USBDevice {
samux 1:80ab0d068708 54 public:
samux 1:80ab0d068708 55
samux 1:80ab0d068708 56 /**
samux 1:80ab0d068708 57 * Constructor
samux 1:80ab0d068708 58 *
samux 1:80ab0d068708 59 * @param vendor_id Your vendor_id
samux 1:80ab0d068708 60 * @param product_id Your product_id
samux 1:80ab0d068708 61 * @param product_release Your preoduct_release
samux 1:80ab0d068708 62 */
samux 1:80ab0d068708 63 USBMIDI(uint16_t vendor_id = 0x0700, uint16_t product_id = 0x0101, uint16_t product_release = 0x0001);
samux 1:80ab0d068708 64
samux 1:80ab0d068708 65 /**
samux 1:80ab0d068708 66 * Send a MIDIMessage
samux 1:80ab0d068708 67 *
samux 1:80ab0d068708 68 * @param m The MIDIMessage to send
samux 1:80ab0d068708 69 */
samux 1:80ab0d068708 70 void write(MIDIMessage m);
samux 1:80ab0d068708 71
samux 1:80ab0d068708 72 /**
samux 1:80ab0d068708 73 * Attach a callback for when a MIDIEvent is received
samux 1:80ab0d068708 74 *
samux 1:80ab0d068708 75 * @param fptr function pointer
samux 1:80ab0d068708 76 */
samux 1:80ab0d068708 77 void attach(void (*fptr)(MIDIMessage));
samux 1:80ab0d068708 78
samux 1:80ab0d068708 79
samux 1:80ab0d068708 80 protected:
samux 1:80ab0d068708 81 virtual bool EP2_OUT_callback();
samux 1:80ab0d068708 82 virtual bool USBCallback_setConfiguration(uint8_t configuration);
samux 1:80ab0d068708 83 /*
samux 1:80ab0d068708 84 * Get string product descriptor
samux 1:80ab0d068708 85 *
samux 1:80ab0d068708 86 * @returns pointer to the string product descriptor
samux 1:80ab0d068708 87 */
samux 1:80ab0d068708 88 virtual uint8_t * stringIproductDesc();
samux 1:80ab0d068708 89
samux 1:80ab0d068708 90 /*
samux 1:80ab0d068708 91 * Get string interface descriptor
samux 1:80ab0d068708 92 *
samux 1:80ab0d068708 93 * @returns pointer to the string interface descriptor
samux 1:80ab0d068708 94 */
samux 1:80ab0d068708 95 virtual uint8_t * stringIinterfaceDesc();
samux 1:80ab0d068708 96
samux 1:80ab0d068708 97 /*
samux 1:80ab0d068708 98 * Get configuration descriptor
samux 1:80ab0d068708 99 *
samux 1:80ab0d068708 100 * @returns pointer to the configuration descriptor
samux 1:80ab0d068708 101 */
samux 1:80ab0d068708 102 virtual uint8_t * configurationDesc();
samux 1:80ab0d068708 103
samux 1:80ab0d068708 104 private:
samux 1:80ab0d068708 105 void (*midi_evt)(MIDIMessage);
samux 1:80ab0d068708 106
samux 1:80ab0d068708 107 };
samux 1:80ab0d068708 108
samux 1:80ab0d068708 109 #endif