PICkit™ Serial SPI
Demo Board
User’s Guide
© 2007 Microchip Technology Inc.
DS51658A
Note the following details of the code protection feature on Microchip devices:
•
Microchip products meet the specification contained in their particular Microchip Data Sheet.
•
Microchip believes that its family of products is one of the most secure families of its kind on the market today, when used in the
intended manner and under normal conditions.
•
There are dishonest and possibly illegal methods used to breach the code protection feature. All of these methods, to our
knowledge, require using the Microchip products in a manner outside the operating specifications contained in Microchip’s Data
Sheets. Most likely, the person doing so is engaged in theft of intellectual property.
•
Microchip is willing to work with the customer who is concerned about the integrity of their code.
•
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DS51658A-page ii
© 2007 Microchip Technology Inc.
PICkit™ SERIAL SPI DEMO
BOARD USER’S GUIDE
Table of Contents
Preface ........................................................................................................................... 1
Introduction............................................................................................................ 1
Document Layout .................................................................................................. 1
Conventions Used in this Guide ............................................................................ 2
Recommended Reading........................................................................................ 3
The Microchip Web Site ........................................................................................ 3
Customer Support ................................................................................................. 4
Document Revision History ................................................................................... 4
Chapter 1. Product Overview ....................................................................................... 5
1.1 Introduction ..................................................................................................... 5
1.2 Highlights ........................................................................................................ 5
1.3 SPI Serial Communications ............................................................................ 6
1.4 What The PICkit™ Serial SPI Demo Board Kit Includes ................................ 6
Chapter 2. Installation and Operation ......................................................................... 7
2.1 SPI Demo Board Operation ............................................................................ 7
2.2 Devices ........................................................................................................... 8
Appendix A. Schematic and Layouts ........................................................................... 9
A.1 Introduction .................................................................................................... 9
A.2 Board - Schematic - Page 1 ......................................................................... 10
A.3 Board - Schematic - Page 2 ......................................................................... 11
A.4 Board - Top Silk Layer ................................................................................. 12
A.5 Board - Top Layer ........................................................................................ 12
A.6 Board - Bottom Layer ................................................................................... 12
Appendix B. Bill Of Materials (BOM) .......................................................................... 13
Worldwide Sales and Service .................................................................................... 14
© 2007 Microchip Technology Inc.
DS51658A-page iii
PICkit™ Serial SPI Demo Board User’s Guide
DS51658A-page iv
© 2007 Microchip Technology Inc.
PICkit™ SERIAL SPI DEMO
BOARD USER’S GUIDE
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 on-line help.
Select the Help menu, and then Topics to open a list of available on-line help files.
INTRODUCTION
This chapter contains general information that will be useful to know before using the
PICkit™ Serial SPI Demo Board. Items discussed in this chapter include:
•
•
•
•
•
•
Document Layout
Conventions Used in this Guide
Recommended Reading
The Microchip Web Site
Customer Support
Document Revision History
DOCUMENT LAYOUT
This document describes how to use the PICkit™ Serial SPI Demo Board as a
development tool. The manual layout is as follows:
• Chapter 1. “Product Overview” – Important information about the PICkit™
Serial SPI Demo Board.
• Chapter 2. “Installation and Operation” – Includes instructions on how to use
the PICkit™ Serial SPI Demo Board.
• Appendix A. “Schematic and Layouts” – Shows the schematic and layout
diagrams for the PICkit™ Serial SPI Demo Board.
• Appendix B. “Bill Of Materials (BOM)” – Lists the parts used to build the
PICkit™ Serial SPI Demo Board.
© 2007 Microchip Technology Inc.
DS51658A-page 1
PICkit™ Serial SPI Demo Board User’s Guide
CONVENTIONS USED IN THIS GUIDE
This manual uses the following documentation conventions:
DOCUMENTATION CONVENTIONS
Description
Arial font:
Italic characters
Represents
Referenced books
Emphasized text
A window
A dialog
A menu selection
A field name in a window or
dialog
A menu path
MPLAB® IDE User’s Guide
...is the only compiler...
the Output window
the Settings dialog
select Enable Programmer
“Save project before build”
A dialog button
A tab
A number in verilog format,
where N is the total number of
digits, R is the radix and n is a
digit.
A key on the keyboard
Click OK
Click the Power tab
4‘b0010, 2‘hF1
Italic Courier New
Sample source code
Filenames
File paths
Keywords
Command-line options
Bit values
Constants
A variable argument
Square brackets [ ]
Optional arguments
Curly brackets and pipe
character: { | }
Ellipses...
Choice of mutually exclusive
arguments; an OR selection
Replaces repeated text
#define START
autoexec.bat
c:\mcc18\h
_asm, _endasm, static
-Opa+, -Opa0, 1
0xFF, ‘A’
file.o, where file can be
any valid filename
mcc18 [options] file
[options]
errorlevel {0|1}
Initial caps
Quotes
Underlined, italic text with
right angle bracket
Bold characters
N‘Rnnnn
Text in angle brackets < >
Courier New font:
Plain Courier New
Represents code supplied by
user
DS51658A-page 2
Examples
File>Save
Press ,
var_name [,
var_name...]
void main (void)
{ ...
}
© 2007 Microchip Technology Inc.
Preface
RECOMMENDED READING
This user's guide describes how to use PICkit™ Serial SPI Demo Board. Other useful
documents are listed below. The following Microchip documents are available and recommended as supplemental reference resources.
25AA020A/25LC020A Data Sheet, "2K SPI Bus Serial EEPROM" (DS21833)
This data sheet provides detailed information regarding the 25LC020A family.
TC77 Data Sheet, "Thermal Sensor with SPI Interface" (DS20092)
This data sheet provides detailed information regarding the TC77 product.
MCP3201 Data Sheet, "2.7V 12-Bit A/D Converter with SPI Serial Interface"
(DS21290)
This data sheet provides detailed information regarding the MCP3201 product.
MCP4821/MCP4822 Data Sheet, "12-Bit DAC with Internal Vref and SPI Interface"
(DS21953)
This data sheet provides detailed information regarding the MCP4822 product.
MCP41XXX/42XXX Data Sheet, "Single/Dual Digital Potentiometer with SPI Interface" (DS11195)
This data sheet provides detailed information regarding the MCP41010 product.
MCP6S91/2/3 Data Sheet, "Single Ended, Rail-to-Rail I/O, Low Gain PGA"
(DS21908)
This data sheet provides detailed information regarding the MCP6S92 product.
MCP23008/MCP23S08 Data Sheet, "8-Bit I/O Expander with Serial Interface"
(DS21919)
This data sheet provides detailed information regarding the MCP23008/MCP23S08
product.
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
© 2007 Microchip Technology Inc.
DS51658A-page 3
PICkit™ Serial SPI Demo Board User’s Guide
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
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://support.microchip.com
DOCUMENT REVISION HISTORY
Revision A (April 2007)
• Initial Release of this Document.
DS51658A-page 4
© 2007 Microchip Technology Inc.
PICkit™ SERIAL SPI DEMO
BOARD USER’S GUIDE
Chapter 1. Product Overview
1.1
INTRODUCTION
The PICkit™ Serial SPI Demo Board demonstrates SPI serial communications and
operation of the following devices:
•
•
•
•
•
•
•
25LC020A - 2K SPI Bus Serial EEPROM
TC77-5.0 - Thermal Sensor with SPI Interface
MCP3201 - 2.7V 12-Bit A/D Converter with SPI Serial Interface
MCP4822 - 12-Bit DAC with Internal VREF and SPI Interface
MCP41010 - Single/Dual Digital Potentiometer with SPI Interface
MCP6S92 - Single-Ended, Rail-to-Rail I/O, Low-Gain PGA
MCP23S08 - 8-Bit I/O Expander with Serial Interface
The PICkit™ Serial SPI Demo Board was designed to easily connect to the PICkit
Serial Analyzer (DV164122). The PICkit Serial Analyzer provides the SPI master mode
serial communications and power. The PICkit™ Serial SPI Demo Board devices all
operate in the SPI slave mode and can easily be connected to virtually any demo or
development board by connecting the communications lines to connector P1.
1.2
HIGHLIGHTS
This chapter discusses:
• SPI Serial Communications
• SPI Demo Board Operation
• SPI Demo Board Devices
FIGURE 1-1:
PICkit™ Serial SPI Demo Board.
© 2007 Microchip Technology Inc.
DS51658A-page 5
PICkit™ Serial SPI Demo Board User’s Guide
1.3
SPI SERIAL COMMUNICATIONS
It is assumed that the user is familiar with the SPI protocol. For more information see:
• An SPI tutorial is available on the Microchip Technology website. Click on the
links: Support --> Getting Started --> PIC MCU Tutorials --> SPI - PICmicro®
Serial Peripheral Interface
• Several application notes are available on the Microchip Technology website.
Click on links: Design --> App Notes --> Function: Communications --> SPI
1.4
WHAT THE PICkit™ SERIAL SPI DEMO BOARD KIT INCLUDES
This PICkit™ Serial SPI Demo Board Kit includes:
• PICkit™ Serial SPI Demo Board (102-00135)
• Analog and Interface Products Demonstration Boards CD-ROM (DS21912)
- PICkit™ Serial SPI Demo Board User’s Guide (DS51658)
DS51658A-page 6
© 2007 Microchip Technology Inc.
PICkit™ SERIAL SPI DEMO
BOARD USER’S GUIDE
Chapter 2. Installation and Operation
2.1
SPI DEMO BOARD OPERATION
The PICkit™ Serial SPI Demo Board was designed to easily connect to the PICkit
Serial Analzyer (DV164122). Refer to the PICkit Serial Analyzer User’s Guide
(DS51647) chapter on SPI Master Communications mode for configuration and
operation information of the PICkit Serial Analyzer.
The PICkit Serial Analyzer provides the SPI master mode serial communications and
power. The PICkit™ Serial SPI Demo Board devices all operate in the SPI slave mode.
Figure 2-1 shows the PICkit™ Serial SPI Demo Board block diagram.
The PICkit Serial Analyzer has only one active low chip select (CS) line. Individual
devices are enabled by inserting the 2-pin shunt onto jumper JP1 through JP7 to
connect the CS line to the device. Only one jumper should be inserted at a time.
Note:
25LC020
JP1
Only one jumper should be inserted into JP1 though JP7 at a time.
Incorrect device operation will occur.
TC77-5.0
JP2
MCP3201
JP3
MCP4822
JP4
MCP41010
JP5
MCP6S92
JP6
MCP23S08
JP7
CS
MISO
SCK
MOSI
FIGURE 2-1:
PICkit™ Serial SPI Demo Board Block Diagram.
Connector P1 connects to the PICkit Serial Analyzer or virtually any demo or
development board. Connector P1 pin assignments are listed in Table 2-1.
TABLE 2-1:
Pin
SPI DEMO BOARD CONNECTOR P1 PIN ASSIGNMENTS
Label
Type
1
CS
Input
2
+V
Power
Power
3
GND
Ground
Ground
4
MISO
Output
Master In, Slave Out
5
SCK
Input
Serial Clock
6
MOSI
Input
Master Out, Slave In
© 2007 Microchip Technology Inc.
Description
Chip Select (Active Low)
DS51658A-page 7
PICkit™ Serial SPI Demo Board User’s Guide
2.2
DEVICES
2.2.1
25LC020A 2K SPI Bus Serial EEPROM
The 25LC020A is a 2Kbit Serial EEPROM. Refer to the 25AA020A/25LC020A Data
Sheet (DS21833) for complete information.
Data can be read or written to the 25LC020A.
2.2.2
TC77-5.0 Thermal Sensor with SPI Interface
The TC77 is a serially accessible digital temperature sensor. Refer to the TC77 Data
Sheet (DS20092) for complete information.
The temperature can be read from the TC77.
2.2.3
MCP3201 2.7V 12-Bit A/D Converter with SPI Serial Interface
The MCP3201 is a successive approximation 12-bit Analog-to-Digital Converter with
on-board sample and hold circuitry. Refer to the MCP3201 Data Sheet (DS21290) for
complete information.
The device provides a single pseudo-differential input. Potentiometer R6 is configured
as a voltage divider (see schematic in Appendix A. “Schematic and Layouts”). The
wiper is connected to IN+. The voltage can be read by the MCP3201 by grounding INwith a test lead and can be verified using a volt meter on test points IN+ and GND.
2.2.4
MCP4822 12-Bit DAC with Internal Vref and SPI Interface
The MCP4822 is a 12-Bit Digital-to-Analog Converter (DAC). Refer to the
MCP4821/MCP4822 Data Sheet (DS21953) for complete information.
The output of the MCP4822 can be measured using a volt meter at test points VOUTA,
VOUTB, and GND.
2.2.5
MCP41010 Single/Dual Digital Potentiometer with SPI Interface
The MCP41010 is a single 10 kΩ digital potentiometer. Refer to the
MCP41XXX/42XXX Data Sheet (DS11195) for complete information.
The resistance of the digital potentiometer can be measured using an ohm meter at test
points PA0, PW0, PB0, and GND.
2.2.6
MCP6S92 Single-Ended, Rail-to-Rail I/O, Low-Gain PGA
The MCP6S92 is a single-ended programmable gain amplifier (PGA). Refer to the
MCP6S91/2/3 Data Sheet (DS21908) for complete information.
The gain of the PGA can be measured by applying a signal to inputs CH0 or CH1 and
GND, and measuring the output on test points Vout and GND.
2.2.7
MCP23S08 8-Bit I/O Expander with Serial Interface
The MCP23008 is an 8-bit I/O Expander. Refer to the MCP23008/MCP23S08 Data
Sheet (DS21919) for complete information.
The output of the MCP23S08 drives LEDs DS1 through DS8. The LEDs provide an
easy to see indication of the MCP23S08 operation. Jumper JP8 must be closed using
a 2-pin shunt for the LEDs to operate. The LEDs can be disabled by removing JP8.
The output of the MCP23S08 is connected to test points GP0 through GP7 and GND.
These test points can be monitored by a volt meter or connected to an external device.
LEDs DS1 through DS8 can be used to monitor the output by closing JP8 with a 2-pin
shunt or disable by removing JP8.
DS51658A-page 8
© 2007 Microchip Technology Inc.
PICkit™ SERIAL SPI DEMO
BOARD USER’S GUIDE
Appendix A. Schematic and Layouts
A.1
INTRODUCTION
This appendix contains the following schematics and layouts for the PICkit™ Serial SPI
Demo Board User’s Guide:
•
•
•
•
•
Board – Schematic - Page 1
Board – Schematic - Page 2
Board – Top Silk Layer
Board – Top Metal Layer
Board – Bottom Metal Layer
© 2007 Microchip Technology Inc.
DS51658A-page 9
PICkit™ Serial SPI Demo Board User’s Guide
A.2
BOARD - SCHEMATIC - PAGE 1
DS51658A-page 10
© 2007 Microchip Technology Inc.
Schematic and Layouts
A.3
BOARD - SCHEMATIC - PAGE 2
© 2007 Microchip Technology Inc.
DS51658A-page 11
PICkit™ Serial SPI Demo Board User’s Guide
A.4
BOARD - TOP SILK LAYER
A.5
BOARD - TOP LAYER
A.6
BOARD - BOTTOM LAYER
DS51658A-page 12
© 2007 Microchip Technology Inc.
PICkit™ SERIAL SPI DEMO
BOARD USER’S GUIDE
Appendix B. Bill Of Materials (BOM)
TABLE B-1:
Qty
BILL OF MATERIALS (BOM)
Reference
Description
Manufacturer
Part Number
7
C1, C2, C3,
Capacitor, Ceramic, SMT 0805
C4, C5, C6, C7
Panasonic®
8
DS1, DS2,
DS3, DS4,
DS5, DS6,
DS7, DS8
LED RED ORANGE CLEAR 0805
SMD
LITE-ON INC
LTST-C170EKT
4
EA Corner
BUMPON SQUARE .40X.10 BLACK
3M
SJ-5007 (BLACK)
1
JP1
CONN JUMPER SHORTING GOLD
FLASH
Sullins Electronics Corp.
SPC02SYAN
8
JP1, JP2, JP3, CONN HEADER 2POS .100 VERT TIN Molex/Waldom
JP4, JP5, JP6,
Electronics Corp
JP7, JP8
22-28-4020
1
P1
CONN HEADER 6POS .100 R/A
GOLD
Molex/Waldom
Electronics Corp
22-28-8062
7
R1, R2, R4,
R5, R7, R8,
R17
RES 10K OHM 1/8W 5% 0805 SMD
Panasonic - ECG
ERJ-6GEYJ103V
9
R3, R9, R10,
RES 1.0K OHM 1/8W 5% 0805 SMD
R11, R12, R13,
R14, R15, R16
Panasonic - ECG
ERJ-6GEYJ102V
1
R6
Bourns Inc.
3296W-1-103LF
POT 10K OHM 3/8" SQ CERM SL MT
- ECG
Electronics®
ECJ-2VB1E104K
29
TP1 - TP29
TEST POINT PC COMPACT SMT
Keystone
1
U1
2K SPI Bus Serial EEPROM
Microchip Technology
1
U2
Thermal Sensor with SPI Interface
Microchip Technology
TC77-5.0MOA
1
U3
2.7V 12-Bit A/D Converter with SPI
Serial Interface
Microchip Technology
MCP3201-I/SN
1
U4
12 Bit DAC with Internal Vref and SPI
Interface
Microchip Technology
MCP4822-E/SN
1
U5
Single/Dual Digital Potentiometer with
SPI Interface
Microchip Technology
MCP14010-I/SN
1
U6
Single-Ended, Rail-to-Rail I/O,
Low-Gain PGA
Microchip Technology
MCP6S92-I/SN
1
U7
8-Bit I/O Expander with Serial Interface Microchip Technology
Note 1:
5016
25LC020-I/SN
MCP23S08-E/SO
The components listed in this Bill of Materials are representative of the PCB assembly. The released BOM
used in manufacturing uses all RoHS-compliant components.
© 2007 Microchip Technology Inc.
DS51658A-page 13
WORLDWIDE SALES AND SERVICE
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Italy - Milan
Tel: 39-0331-742611
Fax: 39-0331-466781
Netherlands - Drunen
Tel: 31-416-690399
Fax: 31-416-690340
Spain - Madrid
Tel: 34-91-708-08-90
Fax: 34-91-708-08-91
UK - Wokingham
Tel: 44-118-921-5869
Fax: 44-118-921-5820
China - Xian
Tel: 86-29-8833-7250
Fax: 86-29-8833-7256
12/08/06
DS51658A-page 14
© 2007 Microchip Technology Inc.
