Atmel’s ATmega256RFR2 gets Xplained

An IEEE 802.15.4 compliant single chip combines an AVR microcontroller with a 2.4GHz RF transceiver. Simply put, Atmel’s ATmega256RFR2 offers the industry’s highest RF performance for single chip devices with a link budget of 103.5dBm, all while consuming 50% less current than existing products on the market today.

“The ATmega256RFR2 features hardware assisted multiple PAN address filtering (MAF), as well as improved channel masks on CH25 and CH26,” an Atmel engineering rep told Bits & Pieces.

“This allows the device to run full power (1W) on these channels using external power amplifiers, wake-on radio, improved link efficiency and reliability using RX override, 32-bit MAC symbol counter, temperature sensor, automatic transmission modes, 128-bit AES crypto engine, true random number generator, high data rate modes and antenna diversity support.”

To accelerate development with the ATmega256RFR2, Atmel offers the ATmega256RFR2 Xplained Pro, a hardware-based platform that allows engineers to more easily evaluate the device. Supported by Atmel Studio, the kit provides easy access to various ATmega256RFR2 features and explains how best to integrate the device in a customer design. Like other Atmel Xplained Pro evaluation kits, the ATmega256RFR2 Xplained Pro is capable of significantly expanding its original functionality by linking to additional Xplained Pro extension kits.

For a complete and ready to go package, the ATmega256RFR2-XSTK starter kit includes the Atmel I/O1 Xplained Pro, OLED1 Xplained Pro and PROTO1 Xplained Pro extension boards.

Aside from the ATmega256RFR2 microcontroller (MCU), key ATmega256RFR2 Xplained Pro specs include:

  • One mechanical reset button
  • One mechanical user pushbutton (wake-up, bootloader entry or general purpose)
  • One user yellow LED
  • 32.768kHz crystal
  • 16MHz crystal
  • 5 Xplained Pro extension headers (2 headers are duplicates)
  • Antenna diversity: Ceramic RF antenna and SMA connector for external antenna
  • Temperature sensor
  • Embedded debugger
  • Auto-ID for board identification in Atmel Studio 6.1
  • One yellow status LED
  • One green board power LED
  • Symbolic debug of complex data types including scope information
  • Programming
  • Data Gateway Interface: SPI, TWI, 4 GPIOs
  • Virtual COM port (CDC)
  • USB powered
  • Supported with application examples in Atmel Software Framework

The ATmega256RFR2 Xplained Pro can be purchased here from Atmel’s official store.

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