EK‐RA8M2 Sample and Demo Hardware configuration

Followings are hardware connection and test samples for EK_RA8M2.

• Note: Following test/samples are running on CM85 core only. CM33 support and Multicore support are in-progress.

How to build samples with CM85 core:

west build -p always -b ek_ra8m2/r7ka8m2jflcac/cm85 <path to test/sample>

For example:

west build -p always -b ek_ra8m2/r7ka8m2jflcac/cm85 samples/drivers/uart/echo_bot

Use Debug On-Board

Jumper	Configurations
J6	Jumper on pins 2-3
J8	Jumper on pins 1-2
J9	Jumper on pins 2-3
J29	Jumpers on pins 1-2, 3-4, 5-6, 7-8

Hardware connection for UART samples

echo_bot (samples/drivers/uart/echo_bot): No additional connection.

zTest (tests/drivers/uart/uart_basic_api): No additional connection.

zTest (tests/drivers/uart/uart_async_api): Loopback for TXD and RXD

Loopback for TXD and RXD

Board	Channel	Pin function	Pin
EK-RA8M2	SCI2	TXD2	PD02
		RXD2	PD03

Hardware connection for SPI samples

spi_bitbang (samples/drivers/spi_bitbang): Loopback for MISO and MOSI

• Note: The purpose of testing sample spi_bitbang on RA boards is to provide users with an understanding of the RA SPI driver. To test this sample using the SPI hardware IP, you can configure it by adding the overlay and configuration files with the following content:

  samples/drivers/spi_bitbang/boards/ek_ra8m2_r7ka8m2jflcac_cm85.conf

  CONFIG_STDOUT_CONSOLE=y
  CONFIG_SPI=y
  CONFIG_SPI_B_INTERRUPT=y
  CONFIG_SPI_B_RA_DTC=y
  CONFIG_LOG=y
  CONFIG_SPI_BITBANG=n
  

  • Note: We have to disable the CONFIG_SPI_BITBANG since we use SPI hardware IP to test spi_bitbang.

  samples/drivers/spi_bitbang/boards/ek_ra8m2_r7ka8m2jflcac_cm85.overlay

   spibb0: &spi1 {
  	rx-dtc;
  	tx-dtc;
  	pinctrl-0 = <&spi1_default>;
  	pinctrl-names = "default";
  	cs-gpios = <&ioport1 3 GPIO_ACTIVE_LOW>;
  	status = "okay";
  };
  
  &ioport1 {
  	status = "okay";
  };
  

zTest (tests/drivers/spi/spi_loopback): Loopback for MISO and MOSI

Loopback for MISO and MOSI

Board	Channel	Pin function	Pin
EK-RA8M2	SPI1	MISO1	P709
		MOSI1	P708

Hardware connection for I2C sample

zTest (tests/drivers/i2c/i2c_api): Require GY-271 QMC5883L module

• With IIC:

  Connections:

  GY271	EK-RA8M2
  VCC	P3V3
  GND	GND
  SCL	P512 (SCL1)
  SDA	P511 (SDA1)
  DDBY	-

• With SCI I2C: Require "-DDTC_OVERLAY_FILE" and "-DCONF_FILE" to use SCI I2C in build command:

  Connections:

  GY271	EK-RA8P1
  VCC	P3V3
  GND	GND
  SCL	P610 (SCL0)
  SDA	P609 (SDA0)
  DDBY	-

  CM85:

  west build -p always -b ek_ra8m2/r7ka8m2jflcac/cm85 tests/drivers/i2c/i2c_api -DDTC_OVERLAY_FILE=boards/ek_ra8m2_r7ka8m2jflcac_cm85_sci_b_i2c.overlay -DCONF_FILE="boards/ek_ra8m2_r7ka8m2jflcac_cm85_sci_b_i2c.conf"
  

Hardware connection for can samples

zTest (tests/drivers/can/api): No additional connection.

zTest (tests/drivers/can/timing): No additional connection.

Hardware connection for PWM (GPT) samples

zTest (tests/drivers/pwm/pwm_api): No additional connection.

zTest (tests/drivers/pwm/pwm_loopback): Loopback 2 channels (1 PWM output, 1 PMW capture)

Board	Channel	Pin	Pin function	Remark
EK-RA8M2	PWM1	P509	GTIOC1A	PWM output
	PWM10	P810	GTIOC20A	PWM capture

Hardware connection for Counter (AGT) samples

Counter Alarm (samples/drivers/counter/alarm): No additional connection.

Hardware connection for ULPT tests

ztest (tests/kernel/timer/timer_api): Require "-DCONFIG_RENESAS_RA_ULPT_TIMER=y" in build command:

• CM85:

  west build -b ek_ra8m2/r7ka8m2jflcac/cm85 tests/kernel/timer/timer_api -p -DCONFIG_RENESAS_RA_ULPT_TIMER=y
  

ztest (tests/kernel/timer/timer_behavior): Require "-DCONFIG_RENESAS_RA_ULPT_TIMER=y" in build command:

• CM85:

  west build -b ek_ra8m2/r7ka8m2jflcac/cm85 tests/kernel/timer/timer_behavior -p -DCONFIG_RENESAS_RA_ULPT_TIMER=y
  

ztest (tests/kernel/timer/timer_timepoints): Require "-DCONFIG_RENESAS_RA_ULPT_TIMER=y" in build command:

• CM85:

  west build -b ek_ra8m2/r7ka8m2jflcac/cm85 tests/kernel/timer/timer_timepoints -p -DCONFIG_RENESAS_RA_ULPT_TIMER=y
  

ztest (tests/kernel/timer/timer_error_case): Require "-DCONFIG_RENESAS_RA_ULPT_TIMER=y" in build command:

• CM85:

  west build -b ek_ra8m2/r7ka8m2jflcac/cm85 tests/kernel/timer/timer_error_case -p -DCONFIG_RENESAS_RA_ULPT_TIMER=y
  

ztest (tests/kernel/timer/timer_monotonic): Require "-DCONFIG_RENESAS_RA_ULPT_TIMER=y" in build command:

• CM85:

  west build -b ek_ra8m2/r7ka8m2jflcac/cm85 tests/kernel/timer/timer_monotonic -p -DCONFIG_RENESAS_RA_ULPT_TIMER=y
  

Hardware connection for LPM test

ztest (tests/subsys/pm/power_mgmt_soc): No additional connection.

Hardware connection for comparator (ACMPHS) test and sample

ztest (tests/drivers/comparator/gpio_loopback): Loopback GPIO pin with Analog voltage input pin for comparator (IVCMPn)

Board	Channel	Pin function	Pin
EK-RA8M2	IPORT6	GPIO	P007
	ACMPHS0	IVCMP3	P001

Renesas comparator (samples/boards/renesas/comparator): Connect SW1 to Analog voltage input pin for comparator (IVCMPn)

Board	Channel	Pin function	Pin
EK-RA8M2	SW1	User push-button	P009
	ACMPHS0	IVCMP3	P001