Project details:
Partner: BytesBakers (Tier 1 collaboration)
Industry: Automotive – Premium Amplifier Platform
Scope: 2 OEMs
7 Hardware Variants
8 – 27 Audio Channels
Used technologies:
Embedded Linux
Embedded C/C++
Low Level Drivers
Success Study: Scalable Platform for Automotive Amplifier
The Requirements
A Tier 1 automotive supplier partnered with BytesBakers to develop a common software platform for a new generation of automotive amplifiers.
The platform needed to support two OEM programs and seven hardware variants, ranging from 8 to 27 audio channels, on a multicore SoC integrating R5, A53, and C7 cores running AUTOSAR OSEK and FreeRTOS.
The customer required a partner capable of delivering complete engineering support, including:
- Software design and implementation
- Establishment of a dedicated testing team
- Development of a Hardware-in-the-Loop (HIL) setup for automated system validation
The Challenge
Building a unified software platform for two OEMs and multiple amplifier variants required careful architectural design and coordinated validation.
Platform scalability
Seven hardware variants differed in processing capability, channel count, and memory layout. The software needed to maintain consistent performance across all configurations without creating multiple codebases.
Multicore and multi-OS execution
Components had to operate seamlessly across R5, A53, and C7 cores under AUTOSAR OSEK and FreeRTOS, ensuring deterministic timing and reliable inter-core communication.
Comprehensive testing coverage
The customer needed a validation strategy spanning unit, integration, and system-level verification — including audio signal paths and onboard diagnostic functions.
Cross-organization coordination
BytesBakers collaborated directly with both the Tier 1 customer and the OEM engineering teams, ensuring alignment on specifications, diagnostics, and validation workflows.
The Solution
BytesBakers delivered a modular multicore platform supported by a full testing infrastructure and dedicated HIL environment.
Unified platform repository
We created a shared software repository with common modules for initialization, diagnostics, communication, and audio control, complemented by OEM-specific integration layers.
The modular design simplified maintenance and improved scalability across all hardware variants.
Cross-core and cross-OS flexibility
Platform components were architected to run efficiently on different cores and operating systems, with standardized APIs enabling reuse without modification.
Dedicated testing team
BytesBakers provided a testing team responsible for verification planning, framework development, and execution of automated and manual tests throughout the development cycle.
HIL setup for amplifier validation
A Hardware-in-the-Loop (HIL) environment was developed to simulate amplifier operation for audio signal verification and onboard diagnostics testing — including speaker fault detection and system monitoring.
This setup enabled early integration testing, faster regression cycles, and reliable validation of timing-critical amplifier functions.
Direct OEM collaboration
Our engineers worked closely with OEM development and validation teams, ensuring consistent behavior across configurations and accelerating issue resolution during integration phases.
The Result
Single scalable platform for 2 OEMs and 7 hardware variants
Multicore and multi-OS support (R5, A53, C7 under AUTOSAR OSEK and FreeRTOS)
Integrated testing and HIL setup designed for audio and diagnostics validation
Direct collaboration with OEM teams improving test efficiency and product quality
Consistent, reusable architecture across all amplifier variants