RA6M2 Evaluation Kit

Board Overview

RA6M2 Evaluation Kit

Name:

ek_ra6m2

Vendor:

Renesas Electronics Corporation

Architecture:

arm

SoC:

r7fa6m2af3cfb

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Overview

The Renesas RA6M2 microcontroller is the entry point to the Renesas RA6 product series for applications that require a high-performance Arm® Cortex®-M4 core at a very attractive price point. The RA6M2 is suitable for IoT applications requiring security, large embedded RAM and low power consumption.

The key features of the EK-RA6M2 board are categorized in three groups as follow:

MCU Native Pin Access

• 120MHz Arm Cortex-M4 based RA6M2 MCU in 144 pins, LQFP package

• Native pin access through 4 x 40-pin male headers

• MCU and USB current measurement points for precision current consumption measurement

• Multiple clock sources - RA6M2 MCU oscillator and sub-clock oscillator crystals, providing precision 12.000 MHz and 32,768 Hz reference clock. Additional low precision clocks are available internal to the RA6M2 MCU

System Control and Ecosystem Access

• USB Full Speed device

• 5V input through USB debug

• Three Debug modes

  • Debug on-board (SWD)

  • Debug in (SWD and JTAG)

  • Debug out (SWD)

• User LEDs and buttons

  • One User LEDs

  • One User buttons

  • One Reset button

• Three most popular ecosystems expansions

  • Two Digilent Pmod (SPI and UART) connectors

  • Arduino (Uno R3) connector

  • MikroElektronika mikroBUS connector

• MCU boot configuration jumper

Special Feature Access

• USB Full Speed Host and Device (micro-AB connector)

Hardware

Detailed hardware features for the RA6M2 MCU group can be found at RA6M2 Group User’s Manual Hardware

RA6M2 Block diagram (Credit: Renesas Electronics Corporation)

Detailed hardware features for the EK-RA6M2 MCU can be found at EK-RA6M2 - User’s Manual

Supported Features

The ek_ra6m2 board supports the hardware features listed below.

on-chip / on-board

Feature integrated in the SoC / present on the board.

2 / 2

Number of instances that are enabled / disabled.
Click on the label to see the first instance of this feature in the board/SoC DTS files.

vnd,foo

Compatible string for the Devicetree binding matching the feature.
Click on the link to view the binding documentation.

ek_ra6m2/r7fa6m2af3cfb target

Type	Location	Description	Compatible
CPU	on-chip	ARM Cortex-M4 CPU1	arm,cortex-m4
ADC	on-chip	Renesas RA ADC node1 1	renesas,ra-adc
Clock control	on-chip	Renesas RA Clock Generation Circuit external clock configuration1	renesas,ra-cgc-external-clock
	on-chip	Generic fixed-rate clock provider3	fixed-clock
	on-chip	Renesas RA Sub-Clock1	renesas,ra-cgc-subclk
	on-chip	Renesas RA Clock Generation Circuit PLL Clock1	renesas,ra-cgc-pll
	on-chip	Renesas RA Clock Control node pclk block1	renesas,ra-cgc-pclk-block
	on-chip	Renesas RA Clock Control Peripheral Clock8 1	renesas,ra-cgc-pclk
	on-chip	Renesas RA External Bus Clock1	renesas,ra-cgc-busclk
Counter	on-chip	Renesas RA AGT as Counter2	renesas,ra-agt-counter
DAC	on-chip	Renesas RA DAC Controller Global1	renesas,ra-dac-global
	on-chip	Renesas RA DAC Controller1 1	renesas,ra-dac
Flash controller	on-chip	Renesas RA family flash high-performance controller1	renesas,ra-flash-hp-controller
GPIO & Headers	on-chip	Renesas RA GPIO I/O Port1 7	renesas,ra-gpio-ioport
I2C	on-chip	Renesas RA I2C Master controller1 2	renesas,ra-iic
Input	on-board	Group of GPIO-bound input keys1	gpio-keys
Interrupt controller	on-chip	ARMv7-M NVIC (Nested Vectored Interrupt Controller)1	arm,v7m-nvic
LED	on-board	Group of GPIO-controlled LEDs1	gpio-leds
Miscellaneous	on-chip	Renesas RA SCI controller1 9	renesas,ra-sci
	on-chip	Renesas RA AGT2	renesas,ra-agt
	on-chip	Renesas RA External Interrupt1 15	renesas,ra-external-interrupt
MMU / MPU	on-chip	ARMv7-M Memory Protection Unit (MPU)1	arm,armv7m-mpu
MTD	on-chip	Flash memory binding of Renesas RA family2	renesas,ra-nv-flash
	on-board	Fixed partitions of a flash (or other non-volatile storage) memory1	fixed-partitions
PHY	on-chip	This binding is to be used by all the usb transceivers which are built-in with USB IP1	usb-nop-xceiv
Pin control	on-chip	The Renesas RA pin controller is a node responsible for controlling pin function selection and pin properties, such as routing a SCI0 RXD to P6101	renesas,ra-pinctrl-pfs
PWM	on-chip	Renesas RA Pulse Width Modulation1 13	renesas,ra-pwm
RNG	on-chip	Renesas RA SCE7 TRNG1	renesas,ra-sce7-rng
Serial controller	on-chip	Renesas RA SCI UART controller1 9	renesas,ra-sci-uart
SPI	on-chip	Renesas RA SPI controller1 1	renesas,ra-spi
SRAM	on-chip	Generic on-chip SRAM description1	mmio-sram
Timer	on-chip	ARMv7-M System Tick1	arm,armv7m-systick
USB	on-chip	Renesas RA USB full-speed controller1	renesas,ra-usbfs
	on-chip	Renesas RA USB device controller1	renesas,ra-udc
Watchdog	on-chip	Renesas RA Watchdog (wdt)1	renesas,ra-wdt

Programming and Debugging

Applications for the ek_ra6m2 board target configuration can be built, flashed, and debugged in the usual way. See Building an Application and Run an Application for more details on building and running.

Flashing

Program can be flashed to EK-RA6M2 via the on-board SEGGER J-Link debugger. SEGGER J-link’s drivers are available at https://www.segger.com/downloads/jlink/

To flash the program to board

1. Connect to J-Link OB via USB port to host PC

2. Make sure J-Link OB jumper is in default configuration as describe in EK-RA6M2 - User’s Manual

3. Execute west command

   west flash -r jlink
   

Debugging

You can use Segger Ozone (Segger Ozone Download) for a visual debug interface

Once downloaded and installed, open Segger Ozone and configure the debug project like so:

• Target Device: R7FA6M2AD

• Target Interface: SWD

• Target Interface Speed: 4 MHz

• Host Interface: USB

• Program File: <path/to/your/build/zephyr.elf>

Note: It’s verified that we can debug OK on Segger Ozone v3.30d so please use this or later version of Segger Ozone

References

• EK-RA6M2 Website

• RA6M2 MCU group Website