The Multi Media Interface ( MMI ) system is an in-car user interface media system developed by Audi , and was launched at the 2001 Frankfurt Motor Show on the Audi-Avantissimo concept car . Production MMI was introduced in the second generation Audi A8 D3 in late 2002 and implemented in majority of its latest series of automobiles .
47-461: MMI consists of a single integrated interface , which controls a variety of devices and functions of the car. The system consists of the MMI terminal and the MMI display screen . The central element of the MMI terminal is the control dial. This dial can be rotated to navigate up and down through menus, and pressed to activate a selected function. Starting with the MMI 3G system, an integrated joystick in
94-483: A dual-core ARM Cortex-A9 CPU, an ultra low power (ULP) GeForce GPU, a 32-bit memory controller with either LPDDR2-600 or DDR2-667 memory, a 32 KB/32 KB L1 cache per core and a shared 1 MB L2 cache. Tegra 2's Cortex A9 implementation does not include ARM's SIMD extension, NEON . There is a version of the Tegra 2 SoC supporting 3D displays; this SoC uses a higher clocked CPU and GPU. The Tegra 2 video decoder
141-444: A dummy implementation may be used to allow development to progress before the final implementation is available. In another case, a fake or mock implementation may be substituted during testing. Such stub implementations are replaced by real code later in the development process. Usually, a method defined in an interface contains no code and thus cannot itself be called; it must be implemented by non-abstract code to be run when it
188-404: A touchscreen , can both send and receive data through the interface, while others such as a mouse or microphone may only provide an interface to send data to a given system. Hardware interfaces exist in many components, such as the various buses , storage devices , other I/O devices, etc. A hardware interface is described by the mechanical, electrical, and logical signals at the interface and
235-538: A 4+1 configuration similar to Tegra 4, or Nvidia's 64-bit Project Denver dual-core processor as well as a Kepler graphics processing unit with support for Direct3D 12, OpenGL ES 3.1, CUDA 6.5, OpenGL 4.4 / OpenGL 4.5 , and Vulkan . Nvidia claims that it outperforms both the Xbox 360 and the PS3, whilst consuming significantly less power. Support Adaptive Scalable Texture Compression . In late April 2014, Nvidia shipped
282-612: A Tegra K1 based design derived from the template of the Nvidia Visual Computing Module (VCM) for driving the infotainment systems and providing visual driving aid in the respective vehicle models of that time. This news has, as of now, found no similar successor or other clear confirmation later on in any other place on such a combination of a multimedia with an auto pilot system for these vehicle models. Released in 2015, Nvidia's Tegra X1 (codenamed " Erista ") features two CPU clusters, one with four ARM Cortex-A57 cores and
329-500: A WLAN outside the car. The new MIB navigation system is the first system that allows the customer to update the vehicle's navigation system on their own. The map data is available on the myAudi website for download or available in the MMI via an OTA update. For the 2015-2016 Audi A3 with MIB1, there is no OTA option in the MMI, thus the map data can only be updated using the SD card method. For MIB1 & MIB2 vehicles, map updates are free for
376-429: A drastic shift in direction towards platforms that provide vehicular automation with the applied " Nvidia Drive " brand name on reference boards and its semiconductors; and with the " Nvidia Jetson " brand name for boards adequate for AI applications within e.g. robots or drones, and for various smart high level automation purposes. The Tegra APX 2500 was announced on February 12, 2008. The Tegra 6xx product line
423-524: A fifth "companion" core in what Nvidia refers to as a "variable SMP architecture". While all cores are Cortex-A9s, the companion core is manufactured with a low-power silicon process. This core operates transparently to applications and is used to reduce power consumption when processing load is minimal. The main quad-core portion of the CPU powers off in these situations. Tegra 3 is the first Tegra release to support ARM's SIMD extension, NEON . The GPU in Tegra 3
470-401: A programming style called programming to the interface . The idea behind this approach is to base programming logic on the interfaces of the objects used, rather than on internal implementation details. Programming to the interface reduces dependency on implementation specifics and makes code more reusable. Pushing this idea to the extreme, inversion of control leaves the context to inject
517-434: A software module A is deliberately defined separately from the implementation of that module. The latter contains the actual code of the procedures and methods described in the interface, as well as other "private" variables, procedures, etc. Another software module B , for example the client to A , that interacts with A is forced to do so only through the published interface. One practical advantage of this arrangement
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#1732854646218564-533: Is ISO 26262 -certified. In summer of 2012 Tesla Motors began shipping the Model S all electric, high performance sedan , which contains two NVIDIA Tegra 3D Visual Computing Modules (VCM). One VCM powers the 17-inch touchscreen infotainment system, and one drives the 12.3-inch all digital instrument cluster ." In March 2015, Nvidia announced the Tegra X1, the first SoC to have a graphics performance of 1 teraflop. At
611-399: Is a new architecture intended to solve a challenge that is becoming increasingly urgent – innovations in consumer electronics and rapid gains in computing power are being introduced at speeds that are much faster than the product cycles of automotive manufacturers. The central computer in the modular infotainment platform, housed in the glove box, comprises two main units in a single housing –
658-496: Is an evolution of the Tegra 2 GPU, with 4 additional pixel shader units and higher clock frequency. It can also output video up to 2560×1600 resolution and supports 1080p MPEG-4 AVC/h.264 40 Mbit/s High-Profile, VC1-AP, and simpler forms of MPEG-4 such as DivX and Xvid. The Tegra 3 was released on November 9, 2011. Common features: Pixel shaders : Vertex shaders : Texture mapping units : Render output units The Tegra 4 ( codenamed " Wayne ")
705-668: Is available: Certain cars have a "pseudo" type of MMI. These are the Audi A3 (8P), A4 (B6 and B7), A6 (C5), TT (8J), the R8 , SEAT Exeo , and Lamborghini Gallardo - when fitted with the RNS-E DVD-based " Audi Navigation Plus " system. While appearing to be a similar layout, and operating similarly, these two systems are very different, are unable to share mapping disks or software, and are not able to control non-ICE functions (such as climate, convenience or suspension settings). On members of
752-564: Is expected to include the Generation 3 infotainment technologies. This includes a digital marketplace in the myAudi app to add Audi Connect plans and SiriusXM with 360L. Interface (computing) In computing, an interface is a shared boundary across which two or more separate components of a computer system exchange information. The exchange can be between software , computer hardware , peripheral devices , humans , and combinations of these. Some computer hardware devices, such as
799-460: Is invoked. An interface called " Stack " might define two methods: push() and pop() . It can be implemented in different ways, for example, FastStack and GenericStack —the first being fast, working with a data structure of fixed size, and the second using a data structure that can be resized, but at the cost of somewhat lower speed. Though interfaces can contain many methods, they may contain only one or even none at all. For example,
846-448: Is largely unchanged from the original Tegra and has limited support for HD formats. The lack of support for high-profile H.264 is particularly troublesome when using online video streaming services. Common features: Pixel shaders : Vertex shaders : Texture mapping units : Render output units NVIDIA's Tegra 3 ( codenamed " Kal-El ") is functionally a SoC with a quad-core ARM Cortex-A9 MPCore CPU, but includes
893-411: Is that replacing the implementation of A with another implementation of the same interface should not cause B to fail—how A internally meets the requirements of the interface is not relevant to B , which is only concerned with the specifications of the interface. (See also Liskov substitution principle .) In some object-oriented languages, especially those without full multiple inheritance ,
940-680: Is to prohibit access to all resources by default, allowing access only through well-defined entry points, i.e., interfaces. Software interfaces provide access to computer resources (such as memory, CPU, storage, etc.) of the underlying computer system; direct access (i.e., not through well-designed interfaces) to such resources by software can have major ramifications—sometimes disastrous ones—for functionality and stability. Interfaces between software components can provide constants , data types , types of procedures , exception specifications, and method signatures . Sometimes, public variables are also defined as part of an interface. The interface of
987-502: The Java language defines the interface Readable that has the single read () method; various implementations are used for different purposes, including BufferedReader , FileReader , InputStreamReader , PipedReader , and StringReader . Marker interfaces like Serializable contain no methods at all and serve to provide run-time information to generic processing using Reflection . The use of interfaces allows for
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#17328546462181034-402: The "Jetson TK1" development board containing a Tegra K1 SoC and running Ubuntu Linux . Unified Shaders : Texture mapping units : Render output units ARM Large Physical Page Extension (LPAE) supports 1 TiB (2 bytes). The 8 GiB limitation is part-specific. In December 2015, the web page of wccftech.com published an article stating that Tesla is going to use
1081-894: The B8 family of vehicles (the A4 ( TYP 8K ), A5 ( TYP 8T ), and Q5 ( TYP 8R )) without full navigation capability, Audi does not describe this infotainment system as MMI. However, an MMI-esque control dial and function keys is provided on the radio/CD head unit. The MMI system has been improved over the years and now features internet connectivity through MMI Connect introduced in recent models. A4 Lim.+ Avant Week 2011> Audi A8 (4H) Week 45/2010> A4 Lim.+ Avant Week 2011> 4E0 060 884 FF 4G0 060 884 AN 8R0 060 884 KL (needs activation SD Card) 8R0 060 884 KL (needs activation SD Card) 8R0 060 884 KL (needs activation SD Card) While seemingly intuitive and user-friendly, MMI can be difficult to operate when driving . Attempts have been made to improve access:
1128-662: The Cortex-A57 cores (both clusters must be in the CC6 off state). Nvidia has removed the ARM Cortex-A53 cores from later versions of technical documentation, implying that they have been removed from the die. The Tegra X1 was found to be vulnerable to a Fault Injection (FI) voltage glitching attack, which allowed for arbitrary code execution and homebrew software on the devices it was implemented in. A revision (codenamed " Mariko ") with greater power efficiency, known officially as Tegra X1+
1175-869: The MMI 3G features a new Joystick on the central knob to make it easier to, for example, input a destination using the navigation map. However, the issues remain. The Audi Q5's MMI infotainment control system is difficult to navigate, partly due to the location of its controls low down on the center console. MMI 3G and 3G+ systems have to be updated by an Audi dealer . The MMI 2G firmware can be updated by car owners. MMI 2G software version history MMI 3G and 3G+ MMI software version history All 3G systems are on HDD; P=Shipped with car; K=Installed by Update BBT seems to be for Basic without Navigation, BNAV for 3G Basic, HNAV for 3G High, HN+/HN+R for 3GPlus MMI 3G and 3G+ navigation database versions Partial list of MMI firmware updates [by Part Number] for 3G Basic, 3G High and 3G Plus: Modular Infotainment Matrix (MIB)
1222-698: The Nvidia Tegra 250, at Consumer Electronics Show 2010 . Nvidia primarily supports Android on Tegra 2, but booting other ARM-supporting operating systems is possible on devices where the bootloader is accessible. Tegra 2 support for the Ubuntu Linux distribution was also announced on the Nvidia developer forum. Nvidia announced the first quad-core SoC at the February 2011 Mobile World Congress event in Barcelona. Though
1269-536: The Radio Car Control Unit and the MMX (Multi-Media eXtension) board. Along with its working and flash memories , the plug-in module integrates a Tegra processor from Nvidia , which can handle all online, media, voice control, navigation, and telephone functions. The new architecture makes it easy to update the hardware; the fact that the MMX board can be swapped out ensures the system is always up to date. 2012 saw
1316-548: The Tegra; however, the phone did not have an app store, so the Tegra's power did not provide much advantage. In September 2008, Nvidia and Opera Software announced that they would produce a version of the Opera 9.5 browser optimized for the Tegra on Windows Mobile and Windows CE . At Mobile World Congress 2009, Nvidia introduced its port of Google 's Android to the Tegra. On January 7, 2010, Nvidia officially announced and demonstrated its next generation Tegra system-on-a-chip,
1363-528: The announcement event, Nvidia showed off Epic Games' Unreal Engine 4 "Elemental" demo, running on a Tegra X1. On October 20, 2016, Nvidia announced that the Nintendo Switch hybrid video game console will be powered by Tegra hardware. On March 15, 2017, TechInsights revealed the Nintendo Switch is powered by a custom Tegra X1 (model T210), with lower clockspeeds. The second generation Tegra SoC has
1410-478: The chip was codenamed Kal-El, it is now branded as Tegra 3. Early benchmark results show impressive gains over Tegra 2, and the chip was used in many of the tablets released in the second half of 2011. In January 2012, Nvidia announced that Audi had selected the Tegra 3 processor for its In-Vehicle Infotainment systems and digital instruments display. The processor will be integrated into Audi 's entire line of vehicles worldwide, beginning in 2013. The process
1457-938: The code with the specific implementations of the interface that will be used to perform the work. A user interface is a point of interaction between a computer and humans; it includes any number of modalities of interaction (such as graphics, sound, position, movement, etc.) where data is transferred between the user and the computer system. Tegra Tegra is a system on a chip (SoC) series developed by Nvidia for mobile devices such as smartphones , personal digital assistants , and mobile Internet devices . The Tegra integrates an ARM architecture central processing unit (CPU), graphics processing unit (GPU), northbridge , southbridge , and memory controller onto one package. Early Tegra SoCs are designed as efficient multimedia processors. The Tegra-line evolved to emphasize performance for gaming and machine learning applications without sacrificing power efficiency, before taking
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1504-451: The comic book character Professor X , was announced on 28 September 2016, and by March 2019, it had been released. It contains 7 billion transistors and 8 custom ARMv8 cores, a Volta GPU with 512 CUDA cores, an open sourced TPU (Tensor Processing Unit) called DLA (Deep Learning Accelerator). It is able to encode and decode 8K Ultra HD (7680×4320). Users can configure operating modes at 10 W, 15 W, and 30 W TDP as needed and
1551-507: The data simultaneously or serial where data are sent one bit at a time. A software interface may refer to a wide range of different types of interfaces at different "levels". For example, an operating system may interface with pieces of hardware. Applications or programs running on the operating system may need to interact via data streams , filters, and pipelines. In object oriented programs , objects within an application may need to interact via methods . A key principle of design
1598-623: The debut of the Modular Infotainment Matrix (MIB) with an NVIDIA T 20 chip as its heart in the Audi A3 . One-and-a-half years later, the MIB's second stage has been deployed in the Audi TT and in the new Audi A6 and A7 Sportback. The T 30 is a quad-core chip running a 3D graphic program from specialist software manufacturer Rightware to render graphics on two displays simultaneously. Thanks to
1645-486: The first three years after the production date of the vehicle. The vehicle is automatically activated from the factory to allow the customer to update the MMI navigation with the next five releases within the next three years. This means the customer can attempt to update the MMI with the same release as many times as they want. Release schedules for map updates are approximately Calendar Week 22 (May/June) and Calendar Week 45(October/November) of each year. The 2021 Model Year
1692-441: The main control dial can be used to (for example) navigate the map. Depending on the MMI generation and configuration, four to eight function buttons surround the control dial, which launch the various features. The MMI screen is a five-inch monochrome black-and-red or seven-inch 16:9 full-color display, depending on the variation of MMI fitted in the car. MMI uses Media Oriented Systems Transport (MOST) technology to interconnect
1739-587: The matrix’ modular structure, Audi can keep it continuously up-to-date and integrate innovations from consumer electronics. Another chip from NVIDIA, the Tegra 4 , powers the Audi tablet debuting in the new Q7. With a 10.1‑inch display, the Audi tablets will provide mobile rear-seat entertainment. In the car, the special purpose tablet will connect itself to the on-board infotainment and navigation system via WLAN and can also be used on
1786-532: The other with four ARM Cortex-A53 cores, as well as a Maxwell -based graphics processing unit. It supports Adaptive Scalable Texture Compression . Only one cluster of cores can be active at once, with the cluster switch being handled by software on the BPMP-L. Devices utilizing the Tegra X1 have only been seen to utilize the cluster with the more powerful ARM Cortex-A57 cores. The other cluster with four ARM Cortex-A53 cores cannot be accessed without first powering down
1833-457: The protocol for sequencing them (sometimes called signaling). A standard interface, such as SCSI , decouples the design and introduction of computing hardware, such as I/O devices, from the design and introduction of other components of a computing system, thereby allowing users and manufacturers great flexibility in the implementation of computing systems. Hardware interfaces can be parallel with several electrical connections carrying parts of
1880-401: The same time. An interface is thus a type definition; anywhere an object can be exchanged (for example, in a function or method call) the type of the object to be exchanged can be defined in terms of one of its implemented interface s or base-classes rather than specifying the specific class . This approach means that any class that implements that interface can be used. For example,
1927-440: The term interface is used to define an abstract type that acts as an abstraction of a class . It contains no data, but defines behaviours as method signatures. A class having code and data for all the methods corresponding to that interface and declaring so is said to implement that interface. Furthermore, even in single-inheritance-languages, one can implement multiple interfaces, and hence can be of different types at
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1974-442: The various systems. Harman Becker Automotive Systems manufactures the MMI system, utilizing QNX Neutrino's Real Time Operating System (RTOS) software. MMI operates in car entertainment components, car electronics, and other functions. Depending on the actual car model, along with which version was specified (MMI Basic, MMI High, etc.), only some, and not all functions will be applicable or available. Audi models for which MMI
2021-684: Was announced on February 19, 2013. With hardware support for the same audio and video formats, but using Cortex-A9 cores instead of Cortex-A15, the Tegra ;4i is a low-power variant of the Tegra 4 and is designed for phones and tablets. Unlike its Tegra 4 counterpart, the Tegra 4i also integrates the Icera i500 LTE / HSPA+ baseband processor onto the same die. Common features: Pixel shaders : Vertex shaders : Pixel pipelines (pairs 1x TMU and 1x ROP) Nvidia 's Tegra K1 (codenamed " Logan ") features ARM Cortex-A15 cores in
2068-578: Was announced on January 6, 2013, and is a SoC with a quad-core CPU, but includes a fifth low-power Cortex A15 companion core which is invisible to the OS and performs background tasks to save power. This power-saving configuration is referred to as "variable SMP architecture" and operates like the similar configuration in Tegra 3. The GeForce GPU in Tegra 4 is again an evolution of its predecessors. However, numerous feature additions and efficiency improvements were implemented. The number of processing resources
2115-759: Was dramatically increased, and clock rate increased as well. In 3D tests, the Tegra 4 GPU is typically several times faster than that of Tegra 3. Additionally, the Tegra 4 video processor has full support for hardware decoding and encoding of WebM video (up to 1080p 60 Mbit/s @ 60fps). Along with Tegra 4, Nvidia also introduced i500, an optional software modem based on Nvidia's acquisition of Icera , which can be reprogrammed to support new network standards. It supports category 3 (100 Mbit/s) LTE but will later be updated to Category 4 (150 Mbit/s). Common features: Pixel shaders : Vertex shaders : Pixel pipelines (pairs 1x TMU and 1x ROP) The Tegra 4i ( codenamed " Grey ")
2162-1112: Was released in 2019, fixing the Fusée Gelée exploit. It's also known as T214 and T210B01. TM670D-A1 TM670M-A2 TM671D-A2 TM675M-A1 CPU frequency may be clocked differently than the maximum validated by Nvidia at the OEM's discretion Unified Shaders : Texture mapping units : Render output units Maximum validated amount of memory, implementation is board specific Maximum validated memory bandwidth, implementation is board specific Nvidia's Tegra X2 (codenamed " Parker ") features Nvidia's own custom general-purpose ARMv8-compatible core Denver 2 as well as code-named Pascal graphics processing core with GPGPU support. The chips are made using FinFET process technology using TSMC 's 16 nm FinFET+ manufacturing process. Unified Shaders : Texture mapping units : Render output units (SM count) The Xavier Tegra SoC, named after
2209-559: Was revealed on June 2, 2008, and the APX 2600 was announced in February 2009. The APX chips were designed for smartphones, while the Tegra 600 and 650 chips were intended for smartbooks and mobile Internet devices (MID). The first product to use the Tegra was Microsoft 's Zune HD media player in September 2009, followed by the Samsung M1. Microsoft's Kin was the first cellular phone to use
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