Followings are hardware connection and test samples for Y-RH850-U2B-292PIN-PB-T1-V1, for more detail on how to setup hardware connection, please visit RH850/U2B 292pin User's Manual: Piggyback Board .

Table of contents

• Table of contents
• Default UART Connection
• Flash command
• UART Sample
• GPIO Sample

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Default UART Connection

HW	Board Pin	Configuration
UART0_TX (P02_6)	CN15_44	connect to USB-TTL module RX pin
UART0_RX (P02_5)	CN15_43	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"

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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_292pin 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_292pin tests/drivers/uart/uart_basic_api

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GPIO Sample

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

  • Hardware configuration:

    LED Signal	Jumper	Configuration
    LED2	CN7	Jumper on pins 15-16

  • Build command: $ west build -p always -b pb_rh850u2c_292pin/r7f702600afabb-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_rh850u2c_292pin/r7f702600afabb-c tests/drivers/gpio/gpio_api_1pin

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

  • Hardware configuration:

    HW	Board Pin	Configurations
    P34_0	CN5_12	Connect to P34_1 (CN5_11)

  • Build command: west build -p always -b pb_rh850u2c_292pin/r7f702600afabb-c tests/drivers/gpio/gpio_basic_api