RA6M3 Evaluation Kit
Overview
The Renesas RA6M3 group uses the high-performance Arm® Cortex®-M4 core and offers a TFT controller with 2D accelerator and JPEG decoder. The RA6M3 is suitable for IoT applications requiring TFT, Ethernet, security, large embedded RAM, and USB High Speed (HS).
The key features of the EK-RA6M3 board are categorized in three groups as follow:
MCU Native Pin Access
120MHz Arm Cortex-M4 based RA6M3 MCU in 176 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 - RA6M3 MCU oscillator and sub-clock oscillator crystals, providing precision 24.000 MHz and 32,768 Hz reference clock. Additional low precision clocks are available internal to the RA6M3 MCU
System Control and Ecosystem Access
USB Full Speed Host and Device (micro AB connector)
Four 5V input sources
USB (Debug, Full Speed, High Speed)
External power supply (using surface mount clamp test points and power input vias)
Three Debug modes
Debug on-board (SWD)
Debug in (ETM, SWD and JTAG)
Debug out (SWD)
User LEDs and buttons
Three User LEDs (red, blue, green)
Power LED (white) indicating availability of regulated power
Debug LED (yellow) indicating the debug connection
Two User buttons
One Reset button
Four most popular ecosystems expansions
Two Seeed Grove system (I2C) connectors
Two Digilent Pmod (SPI and UART) connectors
Arduino (Uno R3) connector
MikroElektronika mikroBUS connector
MCU boot configuration jumper
Special Feature Access
Ethernet (RJ45 RMII interface)
USB High Speed Host and Device (micro-AB connector)
32 Mb (256 Mb) External Quad-SPI Flash
Hardware
Detailed hardware features for the RA6M3 MCU group can be found at RA6M3 Group User’s Manual Hardware
RA6M3 Block diagram (Credit: Renesas Electronics Corporation)
Detailed hardware features for the EK-RA6M3 MCU can be found at EK-RA6M3 - User’s Manual
Supported Features
The ek_ra6m3 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_ra6m3/r7fa6m3ah3cfc target
Type |
Location |
Description |
Compatible |
|---|---|---|---|
CPU |
on-chip |
ARM Cortex-M4 CPU1 |
|
ADC |
on-chip |
||
Clock control |
on-chip |
Renesas RA Clock Generation Circuit external clock configuration1 |
|
on-chip |
Generic fixed-rate clock provider3 |
||
on-chip |
Renesas RA Sub-Clock1 |
||
on-chip |
Renesas RA Clock Generation Circuit PLL Clock1 |
||
on-chip |
Renesas RA Clock Control node pclk block1 |
||
on-chip |
|||
on-chip |
Renesas RA External Bus Clock1 |
||
Counter |
on-chip |
Renesas RA AGT as Counter2 |
|
DAC |
on-chip |
Renesas RA DAC Controller Global1 |
|
on-chip |
|||
Flash controller |
on-chip |
Renesas RA family flash high-performance controller1 |
|
GPIO & Headers |
on-chip |
||
I2C |
on-chip |
||
Input |
on-board |
Group of GPIO-bound input keys1 |
|
Interrupt controller |
on-chip |
ARMv7-M NVIC (Nested Vectored Interrupt Controller)1 |
|
LED |
on-board |
Group of GPIO-controlled LEDs1 |
|
Miscellaneous |
on-chip |
||
on-chip |
Renesas RA AGT2 |
||
on-chip |
|||
MMU / MPU |
on-chip |
ARMv7-M Memory Protection Unit (MPU)1 |
|
MTD |
on-chip |
Flash memory binding of Renesas RA family2 |
|
on-board |
Fixed partitions of a flash (or other non-volatile storage) memory1 |
||
PHY |
on-chip |
This binding is to be used by all the usb transceivers which are built-in with USB IP1 |
|
on-chip |
Renesas RA USBHS internal PHY controller1 |
||
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 |
|
PWM |
on-chip |
||
RNG |
on-chip |
Renesas RA SCE7 TRNG1 |
|
Serial controller |
on-chip |
||
SPI |
on-chip |
||
SRAM |
on-chip |
Generic on-chip SRAM description1 |
|
Timer |
on-chip |
ARMv7-M System Tick1 |
|
USB |
on-chip |
Renesas RA USB full-speed controller1 |
|
on-chip |
|||
on-chip |
Renesas RA USB high-speed controller1 |
||
Watchdog |
on-chip |
Renesas RA Watchdog (wdt)1 |
Programming and Debugging
Applications for the ek_ra6m3 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-RA6M3 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
Connect to J-Link OB via USB port to host PC
Make sure J-Link OB jumper is in default configuration as describe in EK-RA6M3 - User’s Manual
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: R7FA6M3AH
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