company blog about TI AUDIO-AM275-EVM ARM AM275x Audio Evaluation Module

TI AUDIO-AM275-EVM ARM AM275x Audio Evaluation Module

Shenzhen Mingjiada Electronics Co., Ltd. supplies the genuine TI AUDIO-AM275-EVM audio evaluation module, a development platform engineered for high-performance applications. It incorporates a high-performance microcontroller based on the Arm Cortex-R5F, suitable for developing complex multi-channel audio applications.

AUDIO-AM275-EVM Evaluation Module Overview

The AUDIO-AM275-EVM evaluation module (EVM) is a standalone testing, development, and evaluation platform enabling developers to assess AM275x functionality and prototype diverse multichannel audio applications. The evaluation module incorporates the AM275x microcontroller and supporting components, enabling rapid prototyping via multiple device interfaces including McASP digital audio signals, Ethernet, USB 2.0, and CAN-FD. It features on-board current measurement capabilities for power consumption monitoring. The included USB cable, combined with embedded simulation logic, supports emulation and debugging using standard development tools such as Code Composer Studio™ (CCSTUDIO). The evaluation board features expansion interfaces for connecting various Texas Instruments Ethernet expansion boards, demonstrating interoperability between AM275x devices and different Texas Instruments Ethernet physical layer chips. It also includes audio expansion interfaces supporting connection to various Texas Instruments audio expansion cards, verifying compatibility between AM275x and different audio amplifiers, analogue-to-digital converters, and digital-to-analogue converters.

AUDIO-AM275-EVM Features

- 8-channel audio input/output via independent ADCs and DACs

- 2 audio expansion interfaces

- 512Mb OSPI NOR flash memory

- 2 Ethernet expansion interfaces

- On-board USB 2.0 dual-mode port

- On-board XDS110 emulator

AUDIO-AM275-EVM: Revolutionising In-Vehicle Audio Technology, Starting with High-Performance Processors

The AM275x series processors are designed with future vehicle audio systems in mind. They integrate multiple ARM cores and rich audio interfaces, specifically optimised for audio applications. Supporting Dolby DCX decoding and rendering technology for 7.1.4-channel audio, these microcontrollers deliver immersive audio experiences with minimal DSP overhead.

In the era of software-defined vehicles, the flexibility and scalability of audio processing units have become paramount.

Whether for basic sound systems or high-end audio setups, the AM275x processors deliver commensurate processing power. Simultaneously, their unified audio processing family architecture ensures cross-platform software compatibility.

In-vehicle audio systems have evolved from analogue to digital, from simple stereo to multi-channel surround sound, and now to immersive audio processing technologies.

Throughout this evolution, Texas Instruments' AM275x microcontrollers have played a pivotal role, supporting a wide range of audio formats while adapting flexibly to diverse audio scenarios through configurable settings.

AUDIO-AM275-EVM: A Core Platform for Multi-Channel Audio Experiences and Expanded Connectivity

The AUDIO-AM275-EVM evaluation module, featuring the AM275x microcontroller, provides users with a comprehensive testing, development, and evaluation platform. This module achieves 8-channel audio input/output through discrete ADCs and DACs.

This multi-channel audio interface design empowers developers to construct sophisticated audio processing systems, meeting modern automotive demands for high-quality audio experiences. Two audio expansion connectors further enhance the system's flexibility and scalability.

Beyond audio functionality, the evaluation module offers extensive interface resources, including an Ethernet expansion connector, a USB 2.0 dual-role port, and multiple storage interfaces.

Notably, the module incorporates an on-board XDS110 emulator, simplifying development and debugging workflows.

AUDIO-AM275-EVM Hardware System Architecture: Optimised for Audio Processing

The hardware design of the AUDIO-AM275-EVM centres around the AM275x processor, demonstrating comprehensive support for audio applications. 512Mb OSPI NOR flash and 256Gb eMMC flash provide ample storage capacity, while 1Kb I2C EEPROM and 512Mb HYPERBUS HYPERRAM support system configuration and caching.

The module's power supply design thoroughly considers practical application requirements, utilising two USB Type-C interfaces for power delivery. One connector is dedicated solely to power supply, while the other supports dual functionality for both data communication and power delivery.

This dual-interface design enables the module to be powered either via an external power adapter or through a computer's USB port, facilitating developer use across diverse scenarios.

Two symmetrically shielded 80-pin audio expansion connectors are meticulously positioned on the circuit board to ensure signal integrity and immunity to interference.

Each connector supports multiple McASP interfaces, diverse audio clock input/output options, and extensive universal connectivity features including SPI, I2C, MCAN, and UART interfaces.

AUDIO-AM275-EVM Comprehensive Development Support Resources

The AM275x evaluation module comes equipped with extensive development resources, providing engineers with comprehensive development support. The on-board XDS110 emulator, combined with embedded emulation logic, enables simulation and debugging using standard development tools such as Code Composer Studio (CCSTUDIO).

The included USB cable supports system power supply and debugging functions, simplifying the development environment setup. The evaluation board features two audio expansion interfaces and two Ethernet expansion interfaces, enabling flexible connectivity with various Texas Instruments expansion boards.

The AM275x microcontroller itself is based on the Arm Cortex-R5F architecture, offering robust signal processing capabilities specifically designed for audio and radar DSP SoC applications. Texas Instruments provides comprehensive FreeRTOS SDK support, including a multitasking kernel, examples, and drivers, to accelerate application development.

Applications of the AUDIO-AM275-EVM Module in Automotive Electronics

The AUDIO-AM275-EVM evaluation module is particularly suited for developing high-performance audio applications within the automotive electronics sector.

In advanced audio systems, the module's multichannel processing capabilities meet the stringent requirements for sound quality and soundstage in in-vehicle audio systems. For audio gateway applications, the module's diverse interface support enables integration of multiple audio sources and intelligent audio routing.

The module also facilitates development of Acoustic Vehicle Alerting Systems (AVAS), automatically adjusting warning tones based on vehicle speed and surroundings to comply with pedestrian warning regulations for electric vehicles.

In active noise cancellation and road noise suppression applications, the AM275x's real-time processing capabilities effectively reduce cabin noise, enhancing ride comfort. Audio processing within digital cockpits similarly requires such high-performance platforms to integrate voice interaction, audio alerts, and entertainment systems.

Furthermore, the module's CAN-FD interface facilitates connectivity with in-vehicle networks, enabling seamless communication integration between the audio system and other vehicle subsystems.