Instrukcja obsługi Microchip PL485-EK

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PL485-EK

PL485-EK User Guide

Introduction

PL485-EK is an evaluation kit for the PL485. PL485 is a programmable System On Chip (SOC) for narrow-band

Power Line Communication (PLC) from Microchip Technology Inc, able to run any PLC protocol in the frequency

band below 500 kHz. Depending on the running firmware, PL485 is able to support applications not only for basic

connectivity (point to point or point to multi-point connectivity) but also for complex mesh network topologies.

The PL485-EK board has been conceived to communicate in the CENELEC B-Band (95 kHz to 125 kHz) and

complies with the CENELEC EN 50065 standard. It is designed to be directly connected to low voltage DC power

rails and optionally to AC mains by means of an external coupler accessory. Please refer to PLC-AC-Coupler User

Guide for more information about the AC coupler accessory.

Contents

• Welcome letter

• Board:

– One PL485-EK board

• Cable:

– One Micro A/B-type USB cable

Kit contents are protected with anti-static foam. The PL485-EK board is shipped in an anti-static shielding bag.

WARNING

The board must not be subject to high electrostatic discharges. It is recommended to use a grounding

strap or similar ESD protective device when handling the board in hostile ESD environments. Avoid

touching the component pins or any other metallic element on the board.

Features

• PL485-EK board includes a PL485 system on chip, able to run any PLC protocol in the <500 kHz band.

• PL485-EK board implements a coupling circuit optimized for the band 95kHz to 125 kHz, compliant with

CENELEC standard EN50065.

• SWD/JTAG interface for MCU debugging and programming purposes. PL485-EK board includes as well a USB

Embedded Debugger (EDBG) for on-board debugging.

• USB 2.0 full-speed interface

• mikroBUS™ socket connector to interface with other circuits and add-on boards.

• Xplained PRO header connector (master) to interface with other circuits and add-on boards.

• RESET push button, ERASE jumper.

• Voltage monitor circuit on the 5V rail, or alternatively on the 3.3V rail with minor modifications.

• PL485-EK board can be powered from the following sources:

– Micro-B USB connector (J5)

– Micro-B USB connector (J12)

– Xplained PRO PWR connector (J7)

– DC Jack connector (J3) or 2 position terminal block (J2)

Figure 1. PL485-EK Board top view

PL485-EK

Table of Contents

Introduction.....................................................................................................................................................1

Contents......................................................................................................................................................... 1

Features......................................................................................................................................................... 1

1. Evaluation Kit Specifications...................................................................................................................4

1.1. Safety Recommendations............................................................................................................ 4

1.2. Electrical Characteristics..............................................................................................................4

2. Getting Started........................................................................................................................................ 5

2.1. Running the Demo Application.....................................................................................................5

2.2. Code and Technical Support........................................................................................................ 5

3. PL485-EK Board..................................................................................................................................... 6

3.1. Overview...................................................................................................................................... 6

3.2. Features List.................................................................................................................................6

3.3. Hardware Description – System.................................................................................................12

3.4. Hardware Description – MCU Peripherals................................................................................. 20

3.5. Hardware Description – MCU Interface Ports............................................................................ 21

3.6. Hardware Description - JLINK Debugger...................................................................................23

3.7. PL485-EK Schematics............................................................................................................... 27

3.8. PL485-EK Layout....................................................................................................................... 32

4. Standards Compliance..........................................................................................................................36

5. References............................................................................................................................................37

6. Revision History.................................................................................................................................... 38

6.1. Rev A - 01/2020......................................................................................................................... 38

6.2. Rev B - 05/2020......................................................................................................................... 38

The Microchip Website.................................................................................................................................39

Product Change Notification Service............................................................................................................39

Customer Support........................................................................................................................................ 39

Microchip Devices Code Protection Feature................................................................................................39

Legal Notice................................................................................................................................................. 39

Trademarks.................................................................................................................................................. 40

Quality Management System....................................................................................................................... 40

Worldwide Sales and Service.......................................................................................................................41

PL485-EK