W55RP20-EVB-PICO

Overview

W55RP20-EVB-Pico is an evaluation board for W55RP20, a chip that combines W5500, a wired TCP/IP controller, and RP2040. Therefore, both the functions of Raspberry Pi Pico and those of the W5500 are available.

Raspberry Pi Pico Clone
Ethernet (W55RP20 Hardwired TCP/IP CHIP)

W55RP20-EVB-Pico

Features

W55RP20 microcontroller
- Internal 2MByte Flash
- Dual-core cortex M0+ at up to 133MHz
- 264kByte multi-bank high performance SRAM
- External Quad-SPI Flash with eXecute In Place (XIP)
- High performance full-crossbar bus fabric
- 22 multi-function General Purpose IO (4 can be used for ADC)
  - 1.8-3.3V IO Voltage (NOTE. Pico IO voltage is fixed at 3.3V)
- 12-bit 500ksps Analogue to Digital Converter (ADC)
- Various digital peripherals
  - 2 × UART, 2 × I2C, 2 × I2C, 2 × SPI, 16 × PWM channels
  - 1 × Timer with 4 alarms, 1 × Real Time Counter
- 2 × Programmable IO (PIO) blocks, 8 state machines total
- Flexible, user-programmable high-speed IO
- Can emulate interfaces such as SD Card and VGA
- Supports Hardwired Internet Protocols: TCP, UDP, ICMP, IPv4, ARP, IGMP, PPPoE
- Supports 8 Independent Hardware SOCKETs simultaneously
- Internal 32 Kbytes Memory for TX/ RX Buffers
- Supports High Speed Serial Peripheral Interface(SPI MODE 0, 3)
USB C port for power and data (and for reprogramming the Flash)
3-pin ARM Serial Wire Debug (SWD) port
10 / 100 Ethernet PHY embedded
Supports Auto Negotiation
- Full / Half Duplex
- 10 / 100 Based
Built-in RJ45 (POE)
Built-in DCDC (PWM/PFM)
Additional modules are installed to enable POE

Hardware Specification

Pin-out

W55RP20-EVB-PICO

W55RP20-EVB-Pico pinout is directly connected to the GPIO of RP2040 as shown in the above picture. It has the same pinout as the Raspberry Pi Pico board. However, GPIO17, GPIO20, GPIO21, GPIO22, GPIO23, GPIO24, and GPIO25 are not available due to the connection inside the board.

The W55RP20 GPIO used inside W55RP20-EVB-Pico is as follows.

I/O	Pin Name	Description
O	GPIO16	DCDC Mode Select Pin
I	GPIO18	VBUS sense - high if VBUS is present, else low
O	GPIO19	Connected to user LED
I	GPIO29	Used in ADC mode (ADC3) to measure VSYS/3

Apart from GPIO and ground pins, there are 7 other pins on the main 40-pin interface:

Pin No.	Pin Name	Description
PIN40	VBUS	Micro-USB input voltage, connected to micro-USB port pin 1. Nominally 5V.
PIN39	VSYS	Main system input voltage, which can vary in the allowed range 4.3V to 5.5V, and is used by the on-board LDO to generate the 3.3V .
PIN37	3V3_EN	Connects to the on-board LDO enable pin. To disable the 3.3V (which also de-powers the RP2040 and W5500), short this pin low.
PIN36	3V3	Main 3.3V supply to RP2040 and W5500, generated by the on-board LDO.
PIN35	ADC_VREF	ADC power supply (and reference) voltage, and is generated on W5500-EVB-Pico by filtering the 3.3V supply.
PIN33	AGND	Ground reference for GPIO26-29.
PIN30	RUN	RP2040 enable pin, To reset RP2040, short this pin low.

Operation Condition

Item	Description
Operation Temperature MAX	85C (including self-heating)
Operation Temperature MIN	-45C
VBUS	DC 5V (+/- 10%)
VSYS Min	DC 4.3V
VSYS Max	DC 5.5V

Recommended maximum ambient temperature of operation is 70C.

Technical Reference

Schematic

schematics-w55rp20-evb-pico

Schematic & Part list & Gerber File

Go to Github

Dimension (Unit : mm)

W5500-EVB-RP2040

Certification

AWS Qualification

W55RP20-EVB-Pico is RP2040-based device that got AWS IoT Core Qualification.

Firmware Example

Please refer to below links to find firmware example.

C/C++
MicroPython Examples
- Ethernet Examples
CircuitPython Examples
- CircuitPython Examples
Arduino Examples
- Arduino Examples

W55RP20-EVB-PICO

Overview

Features