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.

USBAudio/USBAudio_Types.h

Committer:
tolaipner
Date:
2014-03-30
Revision:
24:4ed3e25c3edc
Parent:
1:80ab0d068708

File content as of revision 24:4ed3e25c3edc:

/* Copyright (c) 2010-2011 mbed.org, MIT License
*
* 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.
*/

#ifndef USBAUDIO_TYPES_H
#define USBAUDIO_TYPES_H


#define DEFAULT_CONFIGURATION (1)

// Audio Request Codes
#define REQUEST_SET_CUR     0x01
#define REQUEST_GET_CUR     0x81
#define REQUEST_SET_MIN     0x02
#define REQUEST_GET_MIN     0x82
#define REQUEST_SET_MAX     0x03
#define REQUEST_GET_MAX     0x83
#define REQUEST_SET_RES     0x04
#define REQUEST_GET_RES     0x84

#define MUTE_CONTROL        0x01
#define VOLUME_CONTROL      0x02


// Audio Descriptor Sizes
#define CONTROL_INTERFACE_DESCRIPTOR_LENGTH       0x09
#define STREAMING_INTERFACE_DESCRIPTOR_LENGTH     0x07
#define INPUT_TERMINAL_DESCRIPTOR_LENGTH          0x0C
#define OUTPUT_TERMINAL_DESCRIPTOR_LENGTH         0x09
#define FEATURE_UNIT_DESCRIPTOR_LENGTH            0x09
#define STREAMING_ENDPOINT_DESCRIPTOR_LENGTH      0x07

// Audio Format Type Descriptor Sizes
#define FORMAT_TYPE_I_DESCRIPTOR_LENGTH   0x0b

#define AUDIO_CLASS                       0x01
#define SUBCLASS_AUDIOCONTROL             0x01
#define SUBCLASS_AUDIOSTREAMING           0x02

// Audio Descriptor Types
#define INTERFACE_DESCRIPTOR_TYPE         0x24
#define ENDPOINT_DESCRIPTOR_TYPE          0x25

// Audio Control Interface Descriptor Subtypes
#define CONTROL_HEADER                    0x01
#define CONTROL_INPUT_TERMINAL            0x02
#define CONTROL_OUTPUT_TERMINAL           0x03
#define CONTROL_FEATURE_UNIT              0x06

// USB Terminal Types
#define TERMINAL_USB_STREAMING            0x0101

// Predefined Audio Channel Configuration Bits
// Mono
#define CHANNEL_M                         0x0000
#define CHANNEL_L                         0x0001  /* Left Front */
#define CHANNEL_R                         0x0002  /* Right Front */

// Feature Unit Control Bits
#define CONTROL_MUTE                      0x0001
#define CONTROL_VOLUME                    0x0002

// Input Terminal Types
#define TERMINAL_MICROPHONE               0x0201

// Output Terminal Types
#define TERMINAL_SPEAKER                  0x0301
#define TERMINAL_HEADPHONES               0x0302

// Audio Streaming Interface Descriptor Subtypes
#define STREAMING_GENERAL                 0x01
#define STREAMING_FORMAT_TYPE             0x02

// Audio Data Format Type I Codes
#define FORMAT_PCM                        0x0001

// Audio Format Types
#define FORMAT_TYPE_I                     0x01

// Audio Endpoint Descriptor Subtypes
#define ENDPOINT_GENERAL                  0x01

#endif