Embedded SW in Digital AM-FM Chipset

Abstract

DRM, the new standard for digital radio broadcasting in AM band requiresintegrated devices for radio receivers at low cost and very low powerconsumption. A chipset is currently designed based upon an ARM9multi-core architecture. This paper introduces the application itself,the HW architecture of the SoC and the SW architecture which includesphysical layer, receiver management, the application layer and theglobal scheduler based on a real-time OS. Then, the paper presents theHW/SW partitioning and SW breakdown between the various processingcores. The methodology used in the project to develop, validate andintegrate the SW covering various methods such as simulation, emulationand co-validation is described. Key points and critical issues are alsoaddressed.One of the challenges is to integrate the whole receiver in themono-chip with respect to the real-time constraints linked to the audioservices.