MICROCHIP MEC142x Family Devices MECC Evaluation Board User Guide

: June 9, 2024
: MICROCHIP

Table of Contents

MICROCHIP MEC142x Family Devices MECC Evaluation Board
INTRODUCTION
Overview
Evaluation Boards
- SOFTWARE SETUP
- HARDWARE CONNECTION
Intel Skylake Platform Rework Instructions
Read User Manual Online (PDF format)
Download This Manual (PDF format)

MICROCHIP MEC142x Family Devices MECC Evaluation Board

Preface

NOTICE TO CUSTOMERS

All documentation becomes dated, and this manual is no exception. Microchip tools and documentation are constantly evolving to meet customer needs, so some actual dialogs and/or tool descriptions may differ from those in this document. Please refer to our web site (www.microchip.com) to obtain the latest documentation available.
Documents are identified with a “DS” number. This number is located on the bottom of each page, in front of the page number. The numbering convention for the DS number is “DSXXXXXA”, where “XXXXX” is the document number and “A” is the revision level of the document.
For the most up-to-date information on development tools, see the MPLAB® IDE online help. Select the Help menu, and then Topics to open a list of available online help files.

INTRODUCTION

This chapter contains general information that will be useful to know before using the MEC142x family devices MECC evaluation board. Items discussed in this chapter include:

Document Layout
Audience
Reference Documents
Glossary
The Microchip Web Site
Development Systems Customer Change Notification Service
Customer Support
Document Revision History

DOCUMENT LAYOUT

This document describes how to use the MEC142x family devices MECC evaluation board (ASSY-6825 Rev. A) to mate with Intel Skylake mobile reference board’s MECC connector or use as standalone development board. The User Guide layout is as follows:

Chapter 1. “Overview” – An introduction and overview of the MEC142x MECC Board.
Chapter 2. “Evaluation Boards” – Includes hardware setup information and demonstration procedures.
Appendix A. “Intel Skylake Platform Rework Instructions” – Provides the rework steps for the Intel Skylake RVP motherboard, eSPI configuration with the MEC142x MECC Add-In Board.

AUDIENCE
This document is written for developers who are familiar with testing and design of Intel personal computer mobile systems, or generic embedded controller applications envi-ronment. The purpose of this document is to describe the functions and use of the MEC142x family devices MECC evaluation board when connected to Intel’s latest gen-eration reference validation platform (RVP) that supports the MECC connector to per-form the appropriate drivers, BIOS, and components development and validation, or running standalone for other embedded controller applications.

REFERENCE DOCUMENTS

DS00002343 – MEC142x Data Sheet
DS00002012 – eSPI Controller Data Sheet
ASSY. 6825A – MEC142x 128 VTQFP eSPI MECC Card, Rev. A1.0 Schematics
MPLABX IDE Tools Documentation
Intel eSPI Specification, June 2013, Revision 0.75 (Doc#: 327432-003)
Intel Skylake Platform Design Guide, June 2014, Revision 0.9 (Doc#: 543016)
Intel Skylake Ultrabook Platform Y-Series RVP3 CRB Schematic, March 2014, Revision 0.72 (Doc#: 544250)
Intel Skylake Y EC AIC Enable Document for rework instructions to enable eSPI

GLOSSARY

This section describes glossary terms and acronyms used in this document.

TERM	DEFINITION
EVB	Evaluation Board
MECC	Modular Embedded Controller Card
ASSY.	Assembly Number Assigned to the Microchip EVB
ACPI	Advanced Configuration and Power Interface
BIOS	Basic Input/Output System
ASL	ACPI Source Language
EC	Embedded Controller
AIC	Add-In Card
LPC	Low Pin Count
eSPI	Enhanced Serial Peripheral Interface

THE MICROCHIP WEB SITE

Microchip provides online support via our web site at www.microchip.com. This web site is used as a means to make files and information easily available to customers. Accessible by using your favorite Internet browser, the web site contains the following information:

Product Support – Data sheets and errata, application notes and sample programs, design resources, user’s guides and hardware support documents, latest software releases and archived software
General Technical Support – Frequently Asked Questions (FAQs), technical support requests, online discussion groups, Microchip consultant program member listing
Business of Microchip – Product selector and ordering guides, latest Microchip press releases, listing of seminars and events, listings of Microchip sales offices, distributors and factory representatives

DEVELOPMENT SYSTEMS CUSTOMER CHANGE NOTIFICATION SERVICE

Microchip’s customer notification service helps keep customers current on Microchip products. Subscribers will receive e-mail notification whenever there are changes, updates, revisions or errata related to a specified product family or development tool of interest.
To register, access the Microchip web site at www.microchip.com, click on Customer Change Notification and follow the registration instructions.

The Development Systems product group categories are:

Compilers – The latest information on Microchip C compilers, assemblers, linkers and other language tools. These include all MPLAB C compilers; all MPLAB assemblers (including MPASM assembler); all MPLAB linkers (including MPLINK object linker); and all MPLAB librarians (including MPLIB object librarian).
Emulators – The latest information on Microchip in-circuit emulators.This includes the MPLAB REAL ICE and MPLAB ICE 2000 in-circuit emulators.
In-Circuit Debuggers – The latest information on the Microchip in-circuit debuggers. This includes MPLAB ICD 3 in-circuit debuggers and PICkit 3 debug express.
MPLAB IDE – The latest information on Microchip MPLAB IDE, the Windows Integrated Development Environment for development systems tools. This list is focused on the MPLAB IDE, MPLAB IDE Project Manager, MPLAB Editor and MPLAB SIM simulator, as well as general editing and debugging features.
Programmers – The latest information on Microchip programmers. These include production programmers such as MPLAB REAL ICE in-circuit emulator, MPLAB ICD 3 in-circuit debugger and MPLAB PM3 device programmers. Also included are nonproduction development programmers such as PICSTART Plus and PIC-kit 2 and 3.

CUSTOMER SUPPORT

Users of Microchip products can receive assistance through several channels:

Distributor or Representative
Local Sales Office
Field Application Engineer (FAE)
Technical Support

Customers should contact their distributor, representative or field application engineer (FAE) for support. Local sales offices are also available to help customers. A listing of sales offices and locations is included in the back of this document.
Technical support is available through the web site at: http://www.microchip.com/support

DOCUMENT REVISION HISTORY

Revision	Section/Figure/Entry	Correction
DS50003279A (04-13-22)	Document Release

Overview

INTRODUCTION

The MEC142x family devices MECC evaluation board (ASSY 6825A) is mainly designed to be used with the Intel Skylake Y-Series RVP platform. The MECC board is a vehicle to support the development of BIOS, drivers, firmware, and so forth. This evaluation board can be also used as a standalone embedded controller development board for embedded and industrial computing applications.

The purpose of this document is to describe the functions of the MEC142x MECC eSPI Plug-In card as well as the setup procedures for full system development, to validate applications, or to power-up as standalone board for application development.
There are several on-board LPC devices on the Intel Skylake RVP platform. There is also an on-board MECC (AIC) connector to provide the capability for other vendors to develop and test their LPC/eSPI devices. The MEC142x family devices MECC evaluation board is designed to plug into the MECC connector to demonstrate the operation of the MEC142x family devices on this platform. This user manual focuses on the Key-board Controller and Embedded Controller functions available on the plug-in card.

INTEL PLATFORM SETUP REQUIREMENTS

Hardware
- Intel Skylake Y-Series RVP Platform (with eSPI support)
- Microchip MEC142x family device MECC Card (ASSY 6825A)
- SPI Flash Programmer
- Dediprog SF100 (http://www.dediprog.com/pd/spi-flash-solution/sf100)
- Skylake specific LCD Display or eDP support LCD Monitor
- 2.5” Notebook SATA HDD
- USB or PS/2 Keyboard & Mouse
- Optional – Select one of the Microchip Debugger Tools
- PICKit3 (Part#: PG164130)
- ICD3 (Part#: DV164035)
- Real ICE (Part#: DV244005)
- RJ11 to ICSP Adapter (Part#: AC164110) – Required for ICD3 or Real ICE
Software
- Microchip MPLABX IDE v2014-08-22 or later
- Microchip XC32 PRO Compiler v1.33 or later
- SPI Flash Programming Utility (ex: Dediprog utility)
- Microchip MEC142x SPI Flash Generator Utility
- Microchip MEC142x Firmware Sample Code
BIOS Support
Please contact Intel or your BIOS vendors if you need any BIOS related information or support.

STANDALONE SETUP REQUIREMENTS

Hardware
- Microchip MEC142x family device MECC Card (ASSY 6825A)
- External +3.3V Power Supply
- SPI Flash Programmer
1. Dediprog SF100 (http://www.dediprog.com/pd/spi-flash-solution/sf100)
- Optional – Select one of the Microchip Debugger Tools
- PICKit3 (Part#: PG164130)
- ICD3 (Part#: DV164035)
- Real ICE (Part#: DV244005)
- RJ11 to ICSP Adapter (Part#: AC164110) – Required for ICD3 or Real ICE
Software
- Microchip MPLABX IDE v2014-08-22 or later
- Microchip XC32 PRO Compiler v1.33 or later
- SPI Flash Programming Utility (ex: Dediprog utility)
- Microchip MEC142x SPI Flash Generator Utility
- Microchip MEC142x Firmware Sample Code

Evaluation Boards

This chapter describes the MEC142x family device MECC card (ASSY 6825A) detailed information.

FEATURES

The MEC142x MECC Evaluation Board has the following components and features:

MEC142x MECC Evaluation Board (ASSY. 6825A)
- MEC142x Embedded Controller
- 32 KHz Crystal
- SPI Flash (W25Q128FV)
- UART Transceiver
- Power LED
- Connectors / Headers:
- Intel MECC (AIC) Connector
- eSPI Access Header
- Powers Isolation Headers
- SPI Flash Programming header (for Dediprog SF100 pin-out)
- Two pins UART header
- Unused GPIO headers
- JTAG/ICSP debugger headers
HARDWARE SETUP
Intel Skylake Y-Serial RVP

  * Plug-In LCD Display or Monitor
  * Plug-In USB or PS/2 Keyboard and Mouse
  * Plug-In USB DVD-ROM if required to install Windows
  * Plug-In 2.5” SATA HDD
  * Plug-In Skylake platform power adapter
  * Press the power button to make sure the platform is boot-able to UEFI Shell or Windows 8.x
2.  **MEC142x MECC Evaluation Board (ASSY 6825A)**
  * Refer to Table 2-1 for jumper settings.

TABLE 2-1: JUMPER SETTINGS ON MEC142X MECC BOARD (ASSY 6825A)

Jumper	Function	Setting
JP1	VTR_33_18 Power Select	<1-2> for +1.8V

<2-3> for +3.3V (Default)

JP2| ADC_DAC_VREF to +3.3V| Connected (Default)

Disconnected

JP4| PECI VREF_CPU power select| <1-2> Connect to Intel platform (Default)

<2-3> Connect to ground

JP5| VTR to +3.3V| Connected (Default)

Disconnected

JP6| VBAT power select| <1-2> Connect to Intel platform (Default)

<2-3> Connect to VTR or Coin Battery

JP7| TFDP or UART signals select| <1-3 & 2-4> Connect to Pegasus TFDP header

<3-5 & 4-6> Connect to UART header (Default)

JP8| +3.3V to V3.3V_EC_CORE| Connected (Default)

Disconnected

JP9| nRESET_IN Group Option| Connected to ground (use for SPI flash program)

Disconnected (Normal Operation)

JP10| System +3.3S to EC V3.3S power well| Connected (Default)

Disconnected

JP11| System +3.3A_RTC to EC V3.3A_RTC power well| Connected (Default)

Disconnected

JP13| System 1.8V_ESPI to EC RSVD_1.8V_ESPI power (Reserved for internal only)| Connected

Disconnected (Default)

JP14| Grounded ICSP_MCLR| Grounded

Not grounded (Default)

SOFTWARE SETUP

Microsoft Windows on Intel SkyLake Platform

Make sure the Intel Skylake platform is boot-able and able to complete the Micro-soft Windows installation accordingly, and able to boot to the Windows.
Please contact your Intel representative if you need any further assistance.

Microchip MPLABX IDE

Install the beta version 2014-08-22 or later.
Double click on the installation file, MPLABX-v2014-08-22-windows-installer.exe under the developer’s windows machine.
Follow the instructions to complete the installation.
Please contact your Microchip representative if you need any further assistance.

Microchip XC32 PRO Compiler

Install the beta version 1.33 (that supports the MEC142x family devices) or later.
Double click on the installation file, xc32-v1.33-full-install-windows-installer.exe under the developer’s windows machine after installing the MPLABX.
Follow the instructions to complete the installation.
At the end of installation, please follow the instruction to activate the XC32 PRO license key.
- User can use xclm.exe in the compiler directory (ex: C:\Program Files (x86)\Microchip\xc32\v1.33\bin) to check the status by “xclm -status” com-mand.
Please contact your Microchip representative if you need any further assistance.

HARDWARE CONNECTION

Intel Skylake Y-Serial RVP Connection
This section shows the hardware connection between Intel Skylake RVP platform and the Microchip MEC142x family device MECC evaluation board along with other com-ponents.

Connect Microchip ICD3 to the MECC J1 with RJ-11 to ICSP adapter
Connect Dediprog SF100 to J2 for SPI flash programming
Standalone MEC142x MECC Card Connection
In the standalone setup, on top of steps 1 to 3 as described above for debug and devel-opment tools connections, we need to connect the power from external +3.3V power source since we don’t have the sources from Intel platform.
Connect MEC142x MECC Card JP8 Pin 1 (3.3_EC_CORE) to an external +3.3V power supply.
Connect a solid good ground source from the same power supply to the MEC142x MECC Card ground pin such as TP38 Pin 2, or TP4, or TP5, etc.

MPLABX IDE BRING UP

Launch the IDE – from Start All Programs Microchip MPLAB X IDE
Open Existing project – MPLabx IDE File Open Project, Navigate the browser to the project setting files which have the project name with .X

MPLABX IDE DASHBOARD

MPLABX IDE Window DashBoard will give details of the project for:

Compiler Toolchain
Memory Used
Debug tool
Debug resources

PROJECT CLEAN AND BUILD

To compile the project, right click on project name and choose either “Build”, “Clean and Build”, or “Clean” option. From Menu bar MPLABX IDE Run  Build Main Project / Clean and Build.

BUILD PROJECT FOR DEBUGGING

To debug the project with ICD3, make sure the connection is correct and the proper Drivers are installed for the Debugger.

From the Menu Bar select or From MPLABX IDE

Project will be rebuilt with debug option.

A successful build, if Real Ice is connected, will establish the connection and download the code to the target board for debugging.

Breakpoints
Breakpoints can be set before launching the debug option or while target device is halted. From Dashboard menu we can see the breakpoints available / used.

Set the break point as required – the break points can be viewed from Menu bar Win-dows Debugging Breakpoints or short cut key Alt + Shift + 5.

Previously set Break points can be enabled or disabled using the select option.

Enter Debug Task
Select Debug Project (project name xxx) from Menu Bar, IDE will connect ICE and proj-ect code into chip, then initiate to execute the code, code will be halted at the break-point which use previous settings.

User can debug code via “step over”, “step into” or “continue”.

View Memory or CPU Register Information
As user hits “Pause” to halt code execution, and select “Windows > PIC memory view CPU registers”, the registers windows will be shown as:

User can view other memory information, e.g. Data or code memory etc.

View Variable

For viewing or examining variables Menu bar Windows Debugging Variables or short cut Alt+ Shift + 1.

Exit Debug Task
Select “Finish debugger session”, IDE will terminate debugging task, and return to edi-tor windows.

BUILD PROJECT FOR SPI FLASH IMAGE
Please refer to the MEC1428 Firmware Example Code Readme.txt for more detailed information.

Steps are shown as below:

Extract firmware binary from XC32 ELF output (refer to Section 2.7 “Project Clean and build”). Use XC32 OBJCOPY utility,
xc32-obcopy -O binary
Make sure TOML configuration file (ex: spi16M_cfg.toml) has the proper values for the firmware binary.
- If you are loading into the start of MEC1428 Code SRAM then use 0xBF-CF0000 for Load Address.
- With the example projects linker file, the _reset entry point is also at 0xBF-CF0000 and use this value for Entry Point Address.
  Note: If you use the default MEC1428 XC32 linker file or change the location of _reset in the custom linker file, please remember to adjust value(s) in the TOML file!!!!
Run the SPI generator,
mec14xx_spi_gen -p MEC1428 -i -o

Program SPI Image to MECC Board SPI Flash

Now, we should have a SPI firmware image (16MB binary) from the build process as described above. Do the following to program the SPI image to the MECC board exter-nal SPI Flash image:

The MEC142x MECC Board has onboard 3V 128M-bit (16MB) SPI Flash (part#: Winbond W25Q128FV). If this is being replaced, please follow the example code then rebuild the binary with correct configuration.
Connect the Dediprog SF100 (or SF600) to the MEC142x MECC Board J2 header.
Plug-In a jumper to JP9 to hold the MEC142x in RESET state.
Plug-In the MEC142x MECC Board to the Intel Skylake RVP Platform or jumper wire JP8 Pin 1 (3.3_EC_CORE) to an external +3.3V power supply & ground pins (more is better) from MECC Board to power source.
Turn on the Intel Skylake RVP Platform or the external +3.3V power supply.
Run the Dediprog programming utility, “dedipro.exe”, the chip selection window. will pop-up as shown below, please select the “W25Q128FV”.
The Info sessions on the right side should be shown as below:
Go to “File” –> “Find” and select the 16MB firmware application binary file, set the data format as “Raw binary” as shown below:
Go to “Config” –> “Flash Option”, make sure “Unprotect block automatically when block(s) protected” option is selected.
Click to the “Batch”, the SPI flash programming will start, and should complete successfully as shown below.
The firmware is now stored in the external SPI flash device. Please remove the JP9, and do a power cycle (please make sure to wait long enough to have power supply discharge before re-powering the MECC board). The new firmware should be loaded by the MEC142x internal ROM to the internal SRAM and start executing.

Please contact your Microchip representative if you need any further information or assistance.

Intel Skylake Platform Rework Instructions

This section provides the rework steps for the Intel Skylake RVP motherboard, eSPI configuration with the MEC142x MECC Add-In Board.
Please refer to Intel “SKL_Y_EC_AIC_ENABLE.pdf” file, and Skylake Reference Sche-matic, “544250_544250_SKL_Y_LPDDR3_RVP3_CRB_Schem_Rev0_72.pdf” docu- ments.

Note: Highlighted items differ from Intel’s instructions.

Intel Step Nos.|

Parts

| See Silkscreen Sheet #|

Rework Action

| Component:

Value / Form / Tolerance

|

Notes

---|---|---|---|---|---
1, 2, 3| none| (n/a)| (None)| (n/a)| (Jumper settings only: Open J2B5, J2E1; Close J2B7.)
4, 5| R4D12| B2 or B3| Move resistor to position R4D11.| 22-ohm / 402 / 5%| 3 pads at right angles: Rotate the resistor to the other ori- entation.
6, 7| R3D17| B2 or B3| Move resistor to position R3D16| 0-ohm / 402| 3 pads in a line. Shift resistor to other position.
8, 9| R5E23| C2| Move resistor to position R5E22| 0.05-ohm / 603 / 1%| 3 pads in a line. Shift resistor to other position.
10| R8F35| C1| Replace 150K resistor w/ 4.7K resistor.| (FYI was 150K / 402 / 5%)

now 4.7K / 402 / 5%

| New 4.7K resistor needed, not supplied.
11| R4E24, R4E6, R4E13, R4E12, R4E5, R3D32| B2| Remove resistors.| (FYI 0-ohm / 402)|
12| R4D17, R4D15, R4D18, R4D16, R4D19, R4D13| B3| Remove resistors.| (FYI 0-ohm / 402)|
13, 14| (n/a)| (n/a)| (None)| (n/a)| Rework not required
14a (new)| R3E2| B3| Remove resistor.| (FYI – 10K / 402 / 5%)| Rework required
15| R5E65, R4E4, R2N11| C2 B2

Underside

| Remove resistors.| (FYI – 10K / 402 / 5%)|
16| R5F30| C2| Remove resistor.| (FYI – 8.2K / 402 / 5%)|

MEC142x Family Devices MECC Evaluation Board User’s Guide

Note the following details of the code protection feature on Microchip products:

Microchip products meet the specifications contained in their particular Microchip Data Sheet.
Microchip believes that its family of products is secure when used in the intended manner, within operating specifications, and under normal conditions.
Microchip values and aggressively protects its intellectual property rights. Attempts to breach the code protection features of Microchip product is strictly prohibited and may violate the Digital Millennium Copyright Act.
Neither Microchip nor any other semiconductor manufacturer can guarantee the security of its code. Code protection does not mean that we are guaranteeing the product is “unbreakable”. Code protection is constantly evolving. Microchip is committed to continuously improving the code protection features of our products.

This publication and the information herein may be used only with Microchip products, including to design, test, and integrate Microchip products with your application. Use of this information in any other manner violates these terms. Information regarding device applications is provided only for your convenience and may be superseded by updates. It is your responsibility to ensure that your application meets with your specifications. Contact your local Microchip sales office for additional support or, obtain additional support at https://www.microchip.com/en-us/support/design-help/client- support-services.

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