AN599 Radar baseboard MCU7 60 GHz radar system platform Board version 2.2 About this document Scope and purpose This application note describes the radar baseboard MCU7, part of Infineons 60 GHz radar system platform. It also introduces the concept of the platform which supports multiple sensors. At the heart of the board is the Microchip ATSAMS70Q21, a 32-bit ARM Cortex-M7 MCU. The microcontroller enables interfacing up to two sensors. It also provides a Hi-Speed USB 2.0 interface to a host computer for visualization or fast data processing. In addition, the board is compatible with the Arduino MKR standard, which facilitates access to existing mass- market daughter boards for mass data storage or wireless communication Arduino boards. Intended audience This document is intended for anyone working with Infineons 60 GHz radar system platform. Application Note Please read the Important Notice and Warnings at the end of this document www.infineon.com page 1 of 23 2021-05-30 Radar baseboard MCU7 60 GHz radar system platform Introduction Table of contents About this document ....................................................................................................................... 1 Table of contents ............................................................................................................................ 2 1 Introduction .......................................................................................................................... 3 1.1 60 GHz radar system platform ................................................................................................................ 3 1.2 Board overview and key features ........................................................................................................... 3 2 Sensor interface ..................................................................................................................... 5 2.1 Overview .................................................................................................................................................. 5 2.2 Supply ...................................................................................................................................................... 6 2.3 Level shifters ............................................................................................................................................ 7 2.4 Sensor connectors ................................................................................................................................... 8 2.5 Current measurement of radar sensor boards ..................................................................................... 10 3 Arduino MKR interface ........................................................................................................... 12 4 Firmware ............................................................................................................................. 13 4.1 USB......................................................................................................................................................... 14 4.2 EEPROM ................................................................................................................................................. 14 4.3 RGB LED ................................................................................................................................................. 15 4.4 Firmware development and debugging ............................................................................................... 16 4.5 Flashing via boot loader ........................................................................................................................ 16 5 Microcontroller pin map......................................................................................................... 17 5.1 Sensor interface 1 .................................................................................................................................. 17 5.2 Sensor interface 2 .................................................................................................................................. 18 5.3 Arduino MKR interface .......................................................................................................................... 19 5.4 Other pins .............................................................................................................................................. 20 6 References ........................................................................................................................... 21 Revision history............................................................................................................................. 22 Application Note 2 of 23 2021-05-30