78M6631 Evaluation Board
User Manual
December 2011
Rev 1
UM_6631_077
78M6631 Evaluation Board User Manual
UM_6631_077
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit
patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
M a x i m I n t e g r a t e d P r o d u c t s , 1 2 0 S a n G a b r i e l D r iv e , S u n n y v a le , C A 9 4 0 8 6 4 0 8- 7 3 7 - 7 6 0 0
2011 Maxim Integrated Products
is a registered trademark of Maxim Integrated Products.
UM_6631_077
78M6631 Evaluation Board User Manual
Table of Contents
1
Introduction ................................................................................................................................... 5
1.1
Package Contents ................................................................................................................ 5
1.2
System Requirements........................................................................................................... 5
1.3
Safety and ESD Notes .......................................................................................................... 6
1.4
Firmware Demo Code Introduction ........................................................................................ 6
1.5
Testing the 78M6631 Evaluation Board Prior to Shipping ...................................................... 6
2
Installation ..................................................................................................................................... 7
2.1
USB Driver Installation .......................................................................................................... 7
2.2
Confirm COM Port Mapping .................................................................................................. 8
2.3
Basic Connection Setup ........................................................................................................ 9
2.4
3-Phase System Connection ............................................................................................... 10
2.5
Burden Resistor Selection................................................................................................... 11
2.6
Jumpers and Switches Settings .......................................................................................... 12
2.7
Verify Serial Connection to the PC ...................................................................................... 17
2.8
In-Circuit Emulator (ICE) Adaptor ........................................................................................ 19
3
Schematics, Bill of Materials and PCB Layouts ......................................................................... 20
3.1
78M6631 Evaluation Board Schematics .............................................................................. 20
3.2
78M6631 Evaluation Board Bill of Materials ........................................................................ 23
3.3
78M6631 Evaluation Board PCB Layouts............................................................................ 25
4
Ordering Information ................................................................................................................... 26
5
Included Documentation ............................................................................................................. 26
6
Contact Information ..................................................................................................................... 26
Revision History .................................................................................................................................. 26
Rev 1
3
78M6631 Evaluation Board User Manual
UM_6631_077
Figures
Figure 1: 78M6631 Evaluation Board Connections................................................................................... 9
Figure 2: 78M6631 Evaluation Board Application Diagram (Wye 3-phase 4-wires) ................................. 10
Figure 3: ICE Adaptor ............................................................................................................................ 19
Figure 4: Attaching the ICE Adaptor....................................................................................................... 19
Figure 5: 78M6631 Evaluation Board Electrical Schematic (1 of 3) ......................................................... 20
Figure 6: 78M6631 Evaluation Board Electrical Schematic (2 of 3) ......................................................... 21
Figure 7: 78M6631 Evaluation Board Electrical Schematic (3 of 3) ......................................................... 22
Figure 8: 78M6631 Evaluation Board PCB Top View ............................................................................. 25
Figure 9: 78M6631 Evaluation Board PCB Bottom View ........................................................................ 25
Table
Table 1: Evaluation Board Jumpers and Terminal Blocks Description..................................................... 12
Table 2: J32 Evaluation Board SPI Connector ....................................................................................... 14
Table 3: J27 ICE Connector................................................................................................................... 14
Table 4: J21 External Battery Connector/Jumper ................................................................................... 14
Table 5: J36 Isolated UART signal Connector ........................................................................................ 14
Table 6: J33 Optional 5VDC External Supply ......................................................................................... 15
Table 7: J24 Digital I/O Connector ......................................................................................................... 15
Table 8: TP1 Digital I/O Connector ........................................................................................................ 15
Table 9: TP2 Digital I/O Connector ........................................................................................................ 15
Table 10: TP3 Digital I/O Connector....................................................................................................... 15
Table 11: J34 USB Connector ............................................................................................................... 16
Table 12: COM Port Setup Parameters.................................................................................................. 17
Table 13: 78M6631 Evaluation Board Bill of Materials............................................................................ 23
4
Rev 1
UM_6631_077
78M6631 Evaluation Board User Manual
1 Introduction
The Teridian™ 78M6631 Evaluation Board is an electrical measurement unit for performing
measurements on a 3-phase AC system. It incorporates the 78M6631 power and energy measurement
device and connects to a PC through a USB cable such as the one provided in the demo kit. The
Evaluation Board demonstrates the capability of the 78M6631 energy meter controller chip for
measurement accuracy and overall system use.
The on-board 78M6631 is pre-programmed with the Firmware Demo
Code.
The 78M6631 energy measurement data and status is read back
over the serial UART interface using a text-based CLI command set (easy
manual operation is performed using HyperTerminal) and through the
serial peripheral interface (SPI).
Refer to the
78M6631 Firmware Description Document
for details about
the firmware and the use of the CLI commands.
1.1 Package Contents
The 78M6631 Evaluation Board Demo Kit includes:
•
•
•
•
•
78M6631 Evaluation Board
USB Cable Assembly USB A-B 28/24 1.8M (Tyco/Amp 1487588-3)
In-Circuit Emulator (ICE) Adaptor
Three CTs
CD with documentation
1.2 System Requirements
The 78M6631 Evaluation Board requires use of a PC with the following features:
•
•
PC (1 GHz, 1 GB) with Microsoft Windows XP
®
, Windows Vista
®
, or Windows 7 operating systems,
equipped with USB port
Minimum 1024 x 768 video display resolution
Teridian is a trademark of Maxim Integrated Products, Inc.
Windows XP and Windows Vista are registered trademarks of Microsoft Corp.
Rev 1
5
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