MOD-RTC development board USER’S MANUAL Initial release, May 2012 Designed by OLIMEX Ltd, 2011 All boards produced by Olimex LTD are ROHS compliant
OLIMEX© 2012 MOD-RTC User's Manual Disclaimer: © 2012 Olimex Ltd. Olimex®, logo and combinations thereof, are registered trademarks of Olimex Ltd. Other terms and product names may be trademarks of others. The information in this document is provided in connection with Olimex products. No license, express or implied or otherwise, to any intellectual property right is granted by this document or in connection with the sale of Olimex products.
OLIMEX© 2012 MOD-RTC User's Manual Table of Contents CHAPTER 1.................................................................................................................5 OVERVIEW.................................................................................................................5 1. Introduction to the chapter.......................................................................................................5 1.1 Features...............................................................
OLIMEX© 2012 MOD-RTC User's Manual CHAPTER 8...............................................................................................................16 REVISION HISTORY..............................................................................................16 8. Introduction to the chapter.....................................................................................................16 8.1 Document revision....................................................................................
OLIMEX© 2012 MOD-RTC User's Manual CHAPTER 1 OVERVIEW 1. Introduction to the chapter Thank you for choosing the MOD-RTC extension module from Olimex! This device is a tiny implementation of NXP's real-time clock/calendar chip PCF8563. The main purpose of MOD-RTC is adding real-time clock to another Olimex board via the UEXT connector without the need of a hardware modification. 1.1 Features • • PCF8536 Real time clock Lithium 3V battery connector • • UEXT connector FR-4, 1.
OLIMEX© 2012 MOD-RTC User's Manual CHAPTER 2 SETTING UP THE MOD-RTC MODULE 2. Introduction to the chapter This section helps you set up the MOD-RTC development board for the first time. Please consider first the electrostatic warning to avoid damaging the board, then discover the hardware and software required to operate the board. The procedure to power up the board is given, and a description of the default board behavior is detailed. 2.
OLIMEX© 2012 MOD-RTC User's Manual but it is not guaranteed. All you have to do is write “setup” command and change “RTC on Boot”.
OLIMEX© 2012 MOD-RTC User's Manual CHAPTER 3 MOD-RTC BOARD DESCRIPTION 3. Introduction to the chapter Here you get acquainted with the main parts of the board. Note the names used on the board differ from the names used to describe them. For the actual names check the MOD-RTC board itself. 3.
OLIMEX© 2012 MOD-RTC User's Manual CHAPTER 4 THE PCF8563 CMOS REAL-TIME CLOCK 4. Introduction to the chapter In this chapter is located the information about the heart of MOD-RTC. The information is a modified version of the datasheet provided by its manufacturers. 4.1 The PCF8563 • • • • • • • • • • • • Provides year, month, day, weekday, hours, minutes, and seconds based on 32.768 kHz quartz crystal Century flag Clock operating voltage: 1.0 V to 5.5 V at room temperature Low backup current; typical 0.
OLIMEX© 2012 MOD-RTC User's Manual CHAPTER 5 CONTROL CIRCUITY 5. Introduction to the chapter Here you can find information about reset circuit and quartz crystal locations. 5.1 Reset The module lacks hardware reset. 5.2 Clock Real time clock (RTC) Q2 is found at pins 1 and 2 of the PCF8563.
OLIMEX© 2012 MOD-RTC User's Manual CHAPTER 6 HARDWARE 6. Introduction to the chapter In this chapter are presented the connectors that can be found on the board all together with their pinout. Jumpers functions are described. Notes and info on specific peripherals are presented. Notes regarding the interfaces are given. 6.1 BAT connector 3V battery can be inserted to power the board externally. Insert the battery with its positive side top. 6.
OLIMEX© 2012 5 SCL 6 SDA 7 NOT CONNECTED 8 NOT CONNECTED 9 NOT CONNECTED 10 NOT CONNECTED MOD-RTC User's Manual 6.3 Jumper description The module doesn't have any jumpers.
OLIMEX© 2012 MOD-RTC User's Manual CHAPTER 7 SCHEMATICS 7. Introduction to the chapter In this chapter are located the schematics describing logically and physically MOD-RTC. 7.1 Eagle schematic MOD-RTC schematic is visible for reference here. You can also find them on the web page for MOD-RTC at our site: http://www.olimex.com/dev/MOD-RTC.html. They are located in HARDWARE section. The EAGLE schematic is situated on the next page for quicker reference.
OLIMEX© 2012 RTC_MODULE 2V7 2V7 2V7 C1 100nF #INT R8 NA(330R) 4 3 VDD VSS #INT OSCI OSCO SCL SDA CLKOUT PCF8563T/5 1 2 6 5 7 C16 10pF D1 Q2 32768Hz/6pF R6 330R SCL R7 330R SDA R9 CLKOUT NA(330R) C17 NA(10pF) Page 14 of 16 R10 0R 1N4148/SMD GN D + + 8 R5 - U1 R2 UEXT 2V7 NA(2.2k) R1 R4 NA(2.2k) NA(2.2k) 2V7 NA(2.
OLIMEX© 2012 MOD-RTC User's Manual 7.2 Physical dimensions Note that all dimensions are in inches.
OLIMEX© 2012 MOD-RTC User's Manual CHAPTER 8 REVISION HISTORY 8. Introduction to the chapter In this chapter you will find the current and the previous version of the document you are reading. Also the web-page for your device is listed. Be sure to check it after a purchase for the latest available updates and examples. 8.1 Document revision Revision Changes Modified Pages A Initial Creation All 8.2 Web page of your device The web page you can visit for more info on your device is http://www.
