RH850‐U2A‐516PIN Sample and Demo hardware configuration - renesas/zephyr GitHub Wiki

Followings are hardware connection and test samples for Y-RH850-U2A-516PIN-PB-T1-V1, for more detail on how to setup hardware connection, please visit RH850/U2A 516pin User's Manual: Piggyback Board.

Table of contents

Option Byte Configuration

Before flashing the RH850/X2x devices, verify that the OPBT3[0:1] settings are configured as follows:

  • STMSEL0 = 0
  • STMSEL1 = 0

This configuration enables Normal Operating Mode and allows flash programming via the Nexus/LPD debug interface.

Power Supply Requirement

The piggyback board requires a 3.3V power supply via CN10 and CN8. Alternative, the piggyback board may be connected to the Y-RH850-X2x-MB-T1-V1

Default UART Connection

HW Board Pin Configuration
UART0_TX (P10_0) CN16_C23 connect to USB-TTL module RX pin
UART0_RX (P10_5) CN16_B27 connect to USB-TTL module TX pin

The UART port can be accessed by connecting a USB-to-TTL converter to the UART0 TX and RX pins.

Flash command

  • Before using the flash command, follow this guide to install the Renesas Flash Programmer (RFP) Host Tools.

  • Then, use the following command to flash the code to the board:

    • west flash -- --tool-opt="-auth id FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF -osc 40"

UART Sample

  • echo_bot (samples/drivers/uart/echo_bot):

    • Hardware configuration: refer to default UART connection.
    • Build command:
      • west build -p always -b pb_rh850u2a_516pin/r7f702300bebbc-c samples/drivers/uart/echo_bot

  • zTest uart_basic_api (tests/drivers/uart/uart_basic_api):

    • Hardware configuration: refer to default UART connection.
    • Build command:
      • west build -p always -b pb_rh850u2a_516pin/r7f702300bebbc-c tests/drivers/uart/uart_basic_api

GPIO Sample

  • Blinky (samples/basic/blinky): Simple LED blinky

    • Hardware configuration:

      LED Signal Jumper Configuration
      LED2 P11 Jumper on pins 1-2

    • Build command: $ west build -p always -b pb_rh850u2a_516pin/r7f702300bebbc-c samples/basic/blinky

  • zTest gpio_api_1pin (tests/drivers/gpio/gpio_api_1pin):

    • Hardware configuration: No additional connection
    • Build command: west build -p always -b pb_rh850u2a_516pin/r7f702300bebbc-c tests/drivers/gpio/gpio_api_1pin

  • zTest gpio_basic_api (tests/drivers/gpio/gpio_basic_api):

    • Hardware configuration:

      HW Board Pin Configurations
      P3_3 CN13_A9 Connect to CN3_2 (CN13_B7)

    • Build command: west build -p always -b pb_rh850u2a_516pin/r7f702300bebbc-c tests/drivers/gpio/gpio_basic_api

ADC Sample

The ADC module supports ADC conversion validation for this board.

ADC Hardware Connection

ADC Signal Board Pin / Jumper Configuration
ADCK input CN14 A28 / AP0_4 Connect to CN12 pin 1
Pull-up JP25 [2-3] 3.3V
A0VCC JP32 [2-1] A0VCC 5.0V
A0VREFH JP33 [2-1] A0VREFH 5.0V

ADC Samples

  • adc_dt (samples/drivers/adc/adc_dt)

    • Hardware configuration: Refer to ADC Hardware Connection.

    • Build command:

      west build -p always -b pb_rh850u2a_516pin/r7f702300bebbc-c samples/drivers/adc/adc_dt

  • adc_sequence (samples/drivers/adc/adc_sequence)

    • Hardware configuration: Refer to ADC Hardware Connection.

    • Build command:

      west build -p always -b pb_rh850u2a_516pin/r7f702300bebbc-c samples/drivers/adc/adc_sequence

ADC zTests

  • zTest adc_api (tests/drivers/adc/adc_api)

    • Hardware configuration: Refer to ADC Hardware Connection.

    • Build command:

      west build -p always -b pb_rh850u2a_516pin/r7f702300bebbc-c tests/drivers/adc/adc_api

  • zTest adc_accuracy_test (tests/drivers/adc/adc_accuracy_test)

    • Hardware configuration: Refer to ADC Hardware Connection.

    • Build command:

      west build -p always -b pb_rh850u2a_516pin/r7f702300bebbc-c tests/drivers/adc/adc_accuracy_test