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Home  Connectivity Software
USB Software/PCI Software
Embedded USB Software
USB Audio
USB Audio
Overview
Jungo's USB Audio Class Driver provides a full and comprehensive solution for audio systems manufacturers
such as mobile phones, mobile phone sets and car kits, car infotainment systems,
set-top boxes, home entertainment systems, iPod accessories, digital speakers and others,
to support audio streaming over the Universal Serial Bus from respective devices such as mobile phones,
portable music players including the Apple iPod, digital microphones, digital speakers and others...
The USB Audio Class Driver is a part of the Jungo USBware
framework and is fully compliant with the USB-IF Audio Class Specification.
It enables an embedded system to recognize an audio device and
provide real time streaming audio. Using the Audio Class Driver, users can communicate with their USB audio
device, streaming audio to or from the USB device.
Background
The Universal Serial Bus (USB) provides an expandable,
hot-pluggable Plug and Play serial interface that ensures a
standard, low-cost connection for peripheral devices such as
storage devices, keyboards, joysticks, printers, scanners,
modems, and digital cameras.
A USB Class Driver is a Logical Device Driver (LDD), which controls
USB devices that provide common functionality and are implemented
in compliance with a specific device class.
A USB Function Driver is a driver implemented within a device in
order to handle the device-specific functionality of a standard
or custom USB device function. This driver provides the counterpart of the USB Class Driver.
Jungo's USB Audio Class Driver is part of the Jungo USBware
USB Host Stack,
which enables software and device manufacturers to incorporate standard USB connectivity into their embedded devices.
The USBware Audio Class Driver streams the
audio data through a dedicated isochronous pipe, thus utilizing the full
potential of the USB bandwidth while guaranteeing required throughput and minimizing
protocol overhead.
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Benefits
- High quality USB Audio Solution
- Isochronous transfer which utilizes the full bandwidth of the USB
- Fully compliant with USB-IF Audio Class Specifications
- Support for composite USB devices, enabling several USB functions on the same embedded device (e.g. Audio + HID + Mass Storage etc).
- Support for the Apple iPod
- Small footprint
- Turnkey solution: eliminates substantial development time and costs
- Hardware/software-independent solution
- Intuitive API, in C code
- Source code available
- Easy portability of applications that utilize the driver between supported operating systems
- Extensive documentation
- Comprehensive technical support, provided by the engineers who developed the stack
- Part of a comprehensive embedded USB software solution from Jungo, which includes
USB Host,
USB Device and
USB On-The-Go (OTG) stacks
Specification
- Products description: USB Audio Class Solution
- Streaming audio
- Support for the Audio 1.0 USB Specification
- Operating systems:
- Leading embedded operating systems: uC/OS-II, VelOSity/Integrity, pSOS, ThreadX, eCos/eCosPro, QNX, MQX, Nucleus, OS20/OS21, uITRON, Symbian, Linux, WinCE, embOS, VDK, REX, VxWorks, INtime, MeOS, DSP/BIOS, MS-DOS, PowerTV, XP, Vista & more
- 16/32bit Proprietary OS/no-OS/pre-boot environments
- Modular Architecture: OS wrappers for easy porting to any operating system
- USB host controllers:
- Industry standard OHCI, UHCI and EHCI
- Leading USB host controller & IP Core vendors including: NXP (ISP 116x, 1362, 1562, 176x), Chipidea/TDI/ARC (CI13010, CI13610, VUSBHS, TD243, TD242LP), Mentor (MUSBMHDRC), Synopsys (DWC USB 2.0 HS High Speed, EHCI/OHCI), Cypress and Epson
- Leading microprocessors with native USB support: NXP LPC (2458, 246x), TI OMAP (850,1030, 2430), TI DaVinCi, Atmel (RM9200, SAM926x), Samsung (S3C2412, S3C2413), ADI Blackfin (54x, 52x), Renesas (SH7770, SH7727), Freescale (ARM i.MX31/i.MX27,
Coldfire MCF52211, PowerQUICC II), Cypress & more
- Professional services to support proprietary controllers
- USB Device controllers:
- Leading USB device controller & IP Core vendors including: NXP (ISP 118x, 1582), Chipidea/TDI/ARC (CI13010, CI13610, VUSBHS, TD243, TD242LP), Mentor (MUSBMHDRC), Synopsys (DWC USB 2.0 UDC20) , Cypress and Epson
- Leading Microprocessors with native USB support: NXP LPC (236x, 2378, 2387), TI OMAP (850,1030,2430), TI DaVinCi, Atmel (ATSAM7x, RM9200, SAM926x), Samsung (S3C2412, S3C2413), ADI Blackfin (54x, 52x), Freescale (ARM i.MX31/i.MX27,
Coldfire MCF52211, PowerQUICC II), ST (STR91xF, STR91xFA) & more
- Professional services to support proprietary controllers
- CPU architectures: ARM, MIPS, x86, RISC, PowerPC, Freescale Coldfire, Intel Xscale, TI DSPs and OMAP, Renesas SuperH and others
- USB 1.1 and USB 2.0 transfer rates:
High-speed (480 Mb/s), full-speed (12 Mb/s) and low-speed (1.5 Mb/s)
- Control, Bulk, Interrupt and Isochronous data transfer support
- Programming language: ANSI C
- Compilers: Any 32-bit C compiler
What's Next?
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