ELECTRONICS DESIGN
Development aid for countless applications
David Werthwein, product manager digital central Europe and Gintaras Drukteinis, technical support engineer, both at Rutronik explore the advanced capabilities of the RDK2 development board with its extensive range of features and interfaces and Arduino add-ons
T
he basis for the RDK2 is the PSoC62 (Programmable System on Chip) from Infineon. The ultralow-power microcontroller is based on 40nm manufacturing technology and combines a dual-core Arm Cortex-M4 and Cortex-M0.
Due to the integrated rotary switch for selecting the switched-mode power supply (SMPS), the RDK2 offers many different operating options: It runs with a standard power supply, alternatively via USB Type-C or even with a coin-operated battery. The BD83070GWL buck-
David Werthwein
boost converter can supply the Arduino Shields with 3.3V and 2A at the output from a single- cell Li-ion battery or any other voltage source between 2.0V and 5.5V. The AP63357DV-7 buck converter can supply the Arduino Shields with 5V and 3A at the output from any external voltage source between 5V and 20V. In addition to the USB interface, the RDK2 has an integrated CAN-FD and RS 485 interface for communication between various devices or components, such as sensors or actuators. In combination with external PSRAM (64Mbit
Gintaras Drukteinis
QSPI) or NOR Flash memory (512Mbit Semper NOR Flash with features for functional safety according to IEC 61508, e.g. Safe Boot or ECC), the development kit is particularly suitable for the development of wearables and sensors. Thanks to the microSD card slot, data can also be stored externally.
For even greater flexibility when using the controller, external pin connectors, which can be soldered onto the kit, addresses all general- purpose inputs/outputs (GPIO). An integrated potentiometer helps with the first ADC
Figure 1: The RDK2 offers many features to reduce development time for countless applications 24 DECEMBER/JANUARY 2023 | ELECTRONICS TODAY
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