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W5100S-EVB-Pico2

Overview​

W5100S-EVB-Pico2 is a microcontroller evaluation board based on the Raspberry Pi RP2350 and fully hardwired TCP/IP controller W5100S – enhancing the capabilities of the traditional Raspberry Pi Pico board with additional Ethernet functionality via W5100S.

  • Enhanced Raspberry Pi Pico Clone
  • Ethernet (W5100S Hardwired TCP/IP CHIP)

W5100S-EVB-PICO2

Powered By Raspberry Pi logo

Revision History​

DateVersionDescription
Jul 20241.0Initial board release

Features​

  • RP2350 Microcontroller with Integrated 16Mbit Flash

    • Symmetric dual Arm Cortex-M33 cores at up to 150MHz
    • 520kByte multi-bank high performance SRAM
    • External Quad-SPI Flash with eXecute In Place (XIP) capabilities
    • Enhanced performance full-crossbar bus fabric
    • Up to 48 multi-function General Purpose IO (8 can be used for ADC on RP2350-B)
      • 1.8-5.0V IO Voltage

  • W5100S Ethernet Controller

    • Supports Hardwired Internet Protocols: TCP, UDP, WOL over UDP, ICMP, IGMPv1/v2, IPv4, ARP, PPPoE
    • Supports 4 Independent Hardware SOCKETs simultaneously
    • Internal 16 Kbytes Memory for TX/ RX Buffers
    • High Speed Serial Peripheral Interface (SPI MODE 0, 3)

  • Analog and Digital Peripherals

    • 12-bit 500ksps Analogue to Digital Converter (ADC)
    • Advanced digital peripherals including:
      • 2 × UART, 2 × I2C, 2 × SPI, 16 × PWM channels
      • 1 × Timer with 4 alarms, 1 × Real Time Counter
    • 3 × Programmable IO (PIO) blocks, 12 state machines total
    • Flexible, user-programmable high-speed IO
    • Can emulate interfaces such as SD Card and VGA

  • Connectivity

    • C-Type USB port for power and data (and for reprogramming the Flash)
    • 40 pin 21x51 'DIP' style 1mm thick PCB with 0.1" through-hole pins also with edge castellations
    • 3-pin ARM Serial Wire Debug (SWD) port

  • Networking

    • 10 / 100 Ethernet PHY embedded
    • Supports Auto Negotiation
      • Full / Half Duplex
      • 10 / 100 Based
    • Built-in RJ45

  • Power Supply

    • Built-in Switch-mode DC-DC converter (replacing LDO for enhanced power efficiency)

Hardware Specification​

Pin-out v1.0​

W5100S-EVB-Pico2

W5100S-EVB-Pico2 pinout is directly connected to the GPIO of RP2350 as shown in the picture above. It has the same pinout as the Raspberry Pi Pico2 board. However, GPIO16, GPIO17, GPIO18, GPIO19, GPIO20, GPIO21 are connected to W5100S inside the board. These pins enable SPI communication with W5100S to use Ethernet function. If you are using the Ethernet function, these pins cannot be used for any other purpose.

The RP2350 GPIO used inside W5100S-EVB-Pico2 is as follows.

I/OPin NameDescription
IGPIO16Connected to MISO on W5100S
OGPIO17Connected to CSn on W5100S
OGPIO18Connected to SCLK on W5100S
OGPIO19Connected to MOSI on W5100S
OGPIO20Connected to RSTn on W5100S
IGPIO21Connected to INTn on W5100S
IGPIO24VBUS sense - high if VBUS is present, else low
OGPIO25Connected to user LED
IGPIO29Used 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 NameDescription
PIN40VBUSMicro-USB input voltage, connected to micro-USB port pin 1. Nominally 5V.
PIN39VSYSMain 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 .
PIN373V3_ENConnects to the on-board LDO enable pin. To disable the 3.3V (which also de-powers the RP2350 and W5100S), short this pin low.
PIN363V3Main 3.3V supply to RP2350 and W5100S, generated by the on-board LDO.
PIN35ADC_VREFADC power supply (and reference) voltage, and is generated on W5100S-EVB-Pico by filtering the 3.3V supply.
PIN33AGNDGround reference for GPIO26-29.
PIN30RUNRP2350 enable pin, To reset RP2350, short this pin low.

Operation Condition​

ItemDescription
Operation Temperature MAX85C (including self-heating)
Operation Temperature MIN-20C
VBUSDC 5V (+/- 10%)
VSYS MinDC 4.3V
VSYS MaxDC 5.5V

Recommended maximum ambient temperature of operation is 70C.

Technical Reference​

RP2350 Datasheet​

W5100S Datasheet​

Schematic v1.0​

w5100s-evb-pico2-schematic

Schematic & Part list & Gerber File​

Dimension v1.0 (Unit : mm)​

Dimension-W5100S-EVB-PICO2

Firmware Example​

Please refer to below links to find firmware example.

Application Notes​

C/C++​

Certification​

CE​

DateDecription
OCT2023/-

FCC​

DateDecription
OCT2023/-

AWS Qualification​

Microsoft Azure Certification​

How to buy​

WIZnetUS Online Shop, USA WIZnetKorea Online Shop, Korea