---
title: "ABOV(A34G43AYL2N) + W6300 EVB"
url: "https://maker.wiznet.io/lawrence/resellers/avob-a34g43ayl2n-w6300-evb/"
markdown_url: "https://maker.wiznet.io/lawrence/resellers/avob-a34g43ayl2n-w6300-evb/md"
type: "VAR: Value-Added Reseller Products"
author: "lawrence"
author_url: "https://maker.wiznet.io/lawrence/"
original_url: "http://www.semisolution.com/page.php?name=embeddedBase"
published: "2025-10-29"
language: "en"
likes: 0
views: 625
comments: 0
source: "WIZnet Makers (https://maker.wiznet.io/)"
---

# ABOV(A34G43AYL2N) + W6300 EVB

> Cortex-M4F EVB pairs WIZnet W6300 hard-wired TCP/IP with IEEE 802.3af PoE (8 W) for compact industrial-IoT and motor-control prototyping.

Original source: http://www.semisolution.com/page.php?name=embeddedBase

## Article

### Technical Review: A34G43AYL2N + W6300 EVB for Real-Time Control via Hardware TCP/IP Offloading

This review analyzes the A34G43AYL2N + W6300 EVB, a solution targeting embedded systems that require concurrent real-time control and high-bandwidth network communication.

Its core architecture features the **A34G43AYL2N (Cortex-M4F @ 200MHz)** dedicated to deterministic tasks (e.g., FOC), while the **W6300** chip offloads all Ethernet processing via a hardware TCP/IP stack. This design eliminates MCU resource contention and ISR latency from network traffic, guaranteeing real-time control loop integrity.

![](https://maker.wiznet.io/upload/ckeditor5/197925091%5F1761753826%2Epng)

### 1. Core Component Specifications

#### 1.1 MCU: A34G43AYL2N

**Core:** 200MHz ARM Cortex-M4F (w/ FPU)

**Memory:** 2048 KB Dual-Bank Flash, 256 KB SRAM

**Key Peripherals:** 3-Phase PWM, 3x 12-bit ADC (1.5 Msps)

**Operating Temp:** -40°C to +105°C (Industrial Grade)

#### 1.2 Ethernet Controller: W6300

**Protocol Stack:** Hardware TCP/IP (IPv4/IPv6 Dual Stack)

**Buffer:** 64KB TX/RX

**Features:** Wake-on-LAN (WoL)

**Interface:** QSPI (for MCU communication)

### 2. EVB Hardware Details

| **Feature** | **Specification** |
| --- | --- |
| **On-board** | USB Type-C (Serial Bridge), LDO, RJ45 (Integrated Magnetics) |
| **Expansion** | 2x30 (60-pin) Header (Provides 57 User GPIO) |
| **Debug** | J4 (10-pin) ARM SWD Connector |
| **Boot Select** | J6 Jumper (Normal / Boot mode) |
| **Board Op. Temp** | -20°C to +85°C (incl. self-heating) |
| **Dimensions** | **93.000 mm × 61.000 mm** (4-Layer PCB) |

![](https://maker.wiznet.io/upload/ckeditor5/197925091%5F1761753851%2Epng)

![](https://maker.wiznet.io/upload/ckeditor5/197925091%5F1761753861%2Epng)

### 3. Optional PoE Module (SS-POE)

The EVB supports an optional SS-POE module via headers J9 and J10.

| **Feature** | **Specification** |
| --- | --- |
| **Standard** | IEEE 802.3af Compliant |
| **Input** | 37V ~ 57V DC |
| **Output** | **5V / 1.6A** (8W Max) |
| **Efficiency** | 80% (Typ.) ~ 85% (Max.) |
| **Mode** | Mode A (Endspan) & Mode B (Midspan) |
| **Protection** | 1500 Vrms Isolation, OCP, OTP, SCP |
| **Size** | 20.000 mm × 38.000 mm |

![](https://maker.wiznet.io/upload/ckeditor5/197925091%5F1761753875%2Epng)

![](https://maker.wiznet.io/upload/ckeditor5/197925091%5F1761753903%2Epng)

### 4. Design Considerations

#### 4.1 GPIO Resource Constraint

To enable Ethernet, the **A34G43AYL2N's PB8 ~ PB15 pins (8 total)** are dedicated to the QSPI interface with the W6300. These pins, though physically exposed on the header, are **unavailable for user I/O** when Ethernet is active.

#### 4.2 Deterministic Behavior

By offloading protocol processing (TCP, UDP, IPv6) to the W6300, the MCU can execute its main control loop at a fixed cycle, free from network-induced jitter. This is a critical architecture for high-reliability industrial controllers.

### 5. Reference Demo Firmware Features (Web / iperf3)

The EVB supports reference firmware to immediately verify the hardware's capabilities, operating in two key modes.

**Mode Switching:** Pressing and holding the EVB's USER button (SW1) for 3 seconds or more switches between Web Server Mode and iperf3 Server Mode.

**Initial Setup:** Initial configuration, such as setting the EVB's IP address (e.g., 192.168.100.3), is performed via a UART terminal (115200-8-N-1) using console commands after connecting the EVB to a laptop with a USB Type-C cable .

#### 5.1 Web Server Mode

This is the default mode. Accessing the EVB's IP address (e.g., `http://192.168.100.3`) provides a GUI-based webpage.

**Device Info:** Displays device information such as model name, firmware version, and MAC address .

**Network Settings:** Allows network parameters, including IPv4/IPv6 activation and auto/static configuration, to be modified and saved from the web interface .

**I/O Control Panel:** Enables web-based interaction with the EVB's hardware:

Monitors the real-time status (LOW/HIGH) of the USER button (KEY1)

Allows direct control (On/Off) of the onboard LEDs via 'Toggle' buttons.

Displays the real-time digital value from the ADC channel, which can be changed by adjusting the onboard variable resistor (RV1) .

**Performance & Comms:** Provides a web-based speed test (Upload/Download) and a UART terminal communication interface (Web-to-Serial)

![](https://maker.wiznet.io/upload/ckeditor5/197925091%5F1761754255%2Epng)![](https://maker.wiznet.io/upload/ckeditor5/197925091%5F1761754268%2Epng)

#### 5.2 iperf3 Server Mode

This mode is dedicated to benchmarking pure network throughput.

In this mode, the EVB acts as an iperf3 server, indicated by 4 blinking LEDs.

The user can run the `iperf3 -c [EVB IP]` command from a PC to measure raw network performance, free from the MCU resource overhead required by the web server function.![](https://maker.wiznet.io/upload/ckeditor5/197925091%5F1761754316%2Epng)

### 6. Conclusion

The A34G43AYL2N + W6300 EVB effectively decouples control and communication performance. It is an optimized platform for applications where precise real-time control must not be compromised by network connectivity, such as **industrial gateways, PoE-based remote actuators, and networked robotics**. Developers can build highly reliable systems, provided they account for the GPIO limitations.

| Feature | A34G43AYL2N (ABOV) | W55RP20 | RP2350 (Raspberry Pi) |
| --- | --- | --- | --- |
| Core | Single ARM Cortex-M4F | Dual ARM Cortex-M0+ | Dual ARM Cortex-M33 |
| Clock Speed | 200 MHz | 133 MHz | 150 MHz |
| FPU (Floating Point) | Yes | No | Yes (Core built-in) |
| Flash | 2048 KB (2MB) On-Chip | Off-Chip (QSPI) | Off-Chip (QSPI) |
| SRAM | 256 KB | 264 KB | 520 KB |
| Key Peripherals | 3-Phase PWM (Motor Control) 12-bit ADC @ 1.5Msps (x3) CAN FD (x2) | 10/100 Ethernet MACPHY PIO (Programmable I/O) (x2) | PIO (x2) CAN FD (x1) RNG, TrustZone |
| I/O Voltage | 2.7V ~ 5.5V (5V Tolerant) | 3.3V (Not 5V Tolerant) | 3.3V |
| Operating Temp. | -40°C ~ +105°C (Industrial) | -20°C ~ +85°C (Standard) | -40°C ~ +85°C |
| Target Application | High-performance Motor/Inverter Industrial Gateway Factory Automation (FA) | General Maker/Hobbyist Projects Flexible I/O Protocol Implementation Low-cost Systems | Next-gen General Projects Secure (TrustZone) IoT Light AI/ML, PIO utilization |
| Ecosystem | Professional B2B, FAE Support (Document-based development) | Massive Community (Worldwide) MicroPython, C/C++ SDK (Beginner to Expert) | Inherits RP2040 Ecosystem MicroPython, C/C++ SDK (Security/Expert) |

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Source: https://maker.wiznet.io/lawrence/resellers/avob-a34g43ayl2n-w6300-evb/