---
title: "[Blog Post UCC Sample] Zephyr 새 보드 만들기 (New Zephyr board with W5500 & RP2040 Raspberry Pi Pico)"
url: "https://maker.wiznet.io/eric_g/projects/%5Bweb-post-ucc-sample%5D-zephyr-%EC%83%88-%EB%B3%B4%EB%93%9C-%EB%A7%8C%EB%93%A4%EA%B8%B0-%233%2C-%232%2C-%231-making-new-zephyr-board-with-w5500-rp2040-raspbe/"
markdown_url: "https://maker.wiznet.io/eric_g/projects/%5Bweb-post-ucc-sample%5D-zephyr-%EC%83%88-%EB%B3%B4%EB%93%9C-%EB%A7%8C%EB%93%A4%EA%B8%B0-%233%2C-%232%2C-%231-making-new-zephyr-board-with-w5500-rp2040-raspbe/md"
type: "UCC: User Created Content"
author: "우리와이프짱짱맨"
author_url: "https://engschool.tistory.com/m/139"
editor: "WIZnet"
editor_url: "https://maker.wiznet.io/"
original_author: "우리와이프짱짱맨"
original_url: "https://engschool.tistory.com/m/139"
license: "MIT license (MIT)"
published: "2022-10-18"
language: "en"
hardware: ["WIZnet W5500-EVB-Pico"]
likes: 5
views: 1315
comments: 0
source: "WIZnet Makers (https://maker.wiznet.io/)"
---

# [Blog Post UCC Sample] Zephyr 새 보드 만들기 (New Zephyr board with W5500 & RP2040 Raspberry Pi Pico)

> Newly configure Zephyr RTOS to the platform of Raspberry Pi Pico added W5500

Original author: 우리와이프짱짱맨 (source: https://engschool.tistory.com/m/139)

## Components

- **WIZnet W5500-EVB-Pico** x 1 ([docs](https://docs.wiznet.io/Product/Chip/Ethernet/W5500/w5500-evb-pico))
- Software: **zephyr-project Zephyr RTOS** ([docs](https://zephyrproject.org/))

## Article

#### **Raspberry Pi Pico W5500 Ethernet Configuration Examples.**

#### **Introduction**

It's very useful for using Ethernet on Zephyr RTOS.

You can easily set up the Ethernet using W5500 by following configurations.

#### **Core ContentW5500_evb_pico_defconf file**

```
CONFIG_SOC_SERIES_RP2XXX=y
CONFIG_SOC_RP2040=y
CONFIG_SYS_CLOCK_HW_CYCLES_PER_SEC=125000000
CONFIG_SERIAL=y
CONFIG_CONSOLE=y
CONFIG_UART_CONSOLE=y
CONFIG_GPIO=y
CONFIG_USE_DT_CODE_PARTITION=y
CONFIG_BUILD_OUTPUT_UF2=y
CONFIG_BUILD_OUTPUT_HEX=y
CONFIG_UART_INTERRUPT_DRIVEN=y
CONFIG_RESET=y

# For W5500
CONFIG_SPI=y
CONFIG_ETH_W5500=y
CONFIG_ETH_W5500_TIMEOUT=1000
CONFIG_NET_SHELL=y
CONFIG_NET_L2_ETHERNET=y
```

**Ethernet configuration on prj.conf file**

```
CONFIG_MAIN_STACK_SIZE=8192
CONFIG_LIB_CPLUSPLUS=y
CONFIG_STD_CPP11=y

# For Log
CONFIG_LOG=y

# For DHCPV4
CONFIG_NET_DHCPV4=y
CONFIG_NET_IPV4=y
CONFIG_NET_IPV6=n
CONFIG_NET_UDP=y
CONFIG_NETWORKING=y
CONFIG_TEST_RANDOM_GENERATOR=y

# Network address config
CONFIG_NET_CONFIG_SETTINGS=y

# For the shell
CONFIG_SHELL=y
CONFIG_NET_SHELL=y
```

**W5500 Ethernet Device Tree for Raspberry Pi on Zephyr.**

```
&spi0 {
	clock-frequency = <DT_FREQ_M(8)>;
	status = "okay";
	pinctrl-0 = <&spi0_default>;
	pinctrl-names = "default";
	cs-gpios = <&gpio0 17 GPIO_ACTIVE_LOW>;
	w5500: w5500@0 {
			compatible = "wiznet,w5500";
			label = "w5500";
			reg = <0>;
			spi-max-frequency = <10000000>;
			int-gpios = <&gpio0 21 GPIO_ACTIVE_LOW>;
            reset-gpios = <&gpio0 20 GPIO_ACTIVE_LOW>;
        };
};
```

#### **Compare**

You can find that RP2040 and NRF52840's **cs pin control is differen**t because of their architecture.

related UCC: <https://maker.wiznet.io/mason/projects/zephyr-alleviates-your-firmware-headaches/>

**device tree overlay file on nrf52840 for W5500, ethernet**

![](https://maker.wiznet.io/upload/ckeditor5/490413435_1665507355.png)

The original guide is very difficult to optimize on your board project.

refrence: <https://docs.zephyrproject.org/latest/build/dts/api/bindings/spi/raspberrypi%2Cpico-spi.html>

![](https://maker.wiznet.io/upload/ckeditor5/151033993%5F1667385314%2Epng)

---

Source: https://maker.wiznet.io/eric_g/projects/%5Bweb-post-ucc-sample%5D-zephyr-%EC%83%88-%EB%B3%B4%EB%93%9C-%EB%A7%8C%EB%93%A4%EA%B8%B0-%233%2C-%232%2C-%231-making-new-zephyr-board-with-w5500-rp2040-raspbe/