RH850‐U2B‐468PIN Sample and Demo hardware configuration - renesas/zephyr GitHub Wiki

Followings are hardware connection and test samples for Y-RH850-U2B-468PIN-PB-T1-V1, for more detail on how to setup hardware connection, please visit RH850/U2B 468pin 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

Default UART Connection

HW Board Pin Remark
UART0_TX (P02_6) CN15_51 connect to USB-TTL module RX pin
UART0_RX (P02_5) CN15_53 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 20"

UART Sample

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

    • Hardware configuration: refer to default UART connection.
    • Build command:
      • west build -p always -b pb_rh850u2b_468pin/r7f70254xafabg-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_rh850u2b_468pin/r7f70254xafabg-c tests/drivers/uart/uart_basic_api

GPIO Sample

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

    • Hardware configuration:

      LED Signal Jumper Configuration
      LED2 CN17 Jumper on pins 15-16

    • Build command: $ west build -p always -b pb_rh850u2b_468pin/r7f70254xafabg-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_rh850u2b_468pin/r7f70254xafabg-c tests/drivers/gpio/gpio_api_1pin

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

    • Hardware configuration:

      HW Board Pin Configurations
      P34_1 CN14_8 Connect to P34_0 (CN5_7)

    • Build command: west build -p always -b pb_rh850u2b_468pin/r7f70254xafabg-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
ADCK0 channel 4 CN13 pin 13 / AN01_0 Connect to CN29-10 pull-up
A0VREFH CN10 [8-9] A0VREFH 5.0V
A0VCC CN10 [11-12] A0VCC 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_rh850u2b_468pin/r7f70254xafabg-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_rh850u2b_468pin/r7f70254xafabg-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_rh850u2b_468pin/r7f70254xafabg-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_rh850u2b_468pin/r7f70254xafabg-c tests/drivers/adc/adc_accuracy_test