1 Introduction

CC13xx SimpleLink™ Sub-1 GHz ultralow power wireless microcontroller (MCU) is centered around an ARM®Cortex®-M3 (CC13x0) or ARM Cortex-M4F (CC13x2) series processor that handles the application and an autonomous RF Core that handles all the low-level radio control and processing needed to transfer digital bits over the air. Normally the customers use the CM3/CM4F to implement their application/high level protocols on top of the physical layer, but it is also possible to use it to implement other novel or legacy physical layer modulation schemes. In order to do so, the CM3/CM4F requires access to the raw IQ samples in RX mode. With the default genfsk/prop PHY, IQ samples are not available outside RF Core and a dedicated patch is needed to automatically copy IQ samples to a partial read RX entry. This application note describes how to get access to these IQ samples using the IQ dump patch.