UM1589 User manual. M24LR-Discovery kit user guide. Introduction

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UM589 User manual M4LR-Discovery kit user guide Introduction The M4LR-Discovery kit helps you evaluate the M4LRXX-E Dual Interface EEPROM that features an energy harvesting analog output, as well as

It is based on an M4LR04E-R I²C - ISO/IEC569 Dual Interface EEPROM, an 8-bit STM8L5C6T6 ultralow power microcontroller, and includes an STTS75 temperature sensor, a 4-segment LCD, and push buttons.

1 UM589 User manual M4LR-Discovery kit user guide Introduction The M4LR-Discovery kit helps you evaluate the M4LRXX-E Dual Interface EEPROM that features an energy harvesting analog output, as well as a user-configurable digital output. The M4LR-Discovery kit is delivered with a battery-less M4LR board that can be powered by RFID readers or NFC phones supporting the ISO/IEC569 protocol. It is based on an M4LR04E-R I²C - ISO/IEC569 Dual Interface EEPROM, an 8-bit STM8L5C6T6 ultralow power microcontroller, and includes an STTS75 temperature sensor, a 4-segment LCD, and push buttons. The M4LR-Discovery kit also comes with an USB RF transceiver demonstration board that includes the CR95HF.56-MHz multi-protocol contactless transceiver. It is based on a -bit, STMF0CBT6 performance line microcontroller and is connected to a computer host via its USB connector. Table. Applicable tools Type Applicable tool Evaluation tools M4LR-Discovery kit Figure. M4LR evaluation board Figure. RF transceiver demonstration board November 0 Doc ID 088 Rev /5

2 Contents UM589 Contents Quick start Getting started with the M4LR04E Dual Interface EEPROM Using the M4LR board with Android NFC phones System requirements Development toolchain Features Hardware and layout description M4LR board description M4LR board power selection RF transceiver board description RF transceiver demonstration board powering and startup Program/debug the M4LR board Program/debug the RF transceiver demo board Electrical schematic diagrams Revision history /5 Doc ID 088 Rev

3 UM589 Quick start Quick start The M4LR-Discovery kit is a low-cost and ready-to-use development kit used to evaluate the functions and performance of the M4LR Dual Interface EEPROM family and its energy harvesting capability. For more information on the M4LR-Discovery kit and associated demonstration software, please visit Getting started with the M4LR04E Dual Interface EEPROM. On the M4LR board, ensure that a jumper is placed on connector JP in the RF power position (jumper on the right side as shown in Figure 4).. Download and install the M4LR/CR95HF demonstration software available at Connect the RF transceiver demo board to a PC with a USB cable. 4. Launch M4LRxx_Application_Software.exe, and select CR95HF Demo Kit. Then, open the Demo NDEF messages menu and select Show Demo NDEF & Energy Harvesting. 5. Place the M4LR board antenna close to the RF transceiver demo board antenna. 6. The M4LR board starts in Message Display mode (The M4LR04E-DISCOVERY message scrolls across the screen from right to left). You can read the current NDEF message stored in the M4LR04E-R by clicking the Read NDEF message button of the PC software. You can also write an new NDEF message: it will be automatically displayed on the M4LR board LCD screen after programming. 7. To change the user mode, press push button B (blue button on the left side of the board). Table lists the user modes available. Table. Available user modes Mode Description Displays the NDEF text message stored in the M4LR04E Dual Interface EEPROM. Displays the voltage powering the M4LR board. Displays the ambient temperature, measured using the temperature sensor. To study or modify the M4LR board application project related to this demo, please visit Doc ID 088 Rev /5

4 Quick start UM589. Using the M4LR board with Android NFC phones. Enable NFC communication on your phone (Settings >Wireless and Networks>NFC).. Download the NfcV-Reader Application from Google Play Store.. Launch the NfcV-Reader application. 4. Place the phone's NFC antenna close to the M4LR board antenna. The phone powers the M4LR board. The text message can be changed in the M4LR04E using the NFC phone (select NDEF function in the NfcV-Reader application and open the Write NDEF message menu). Please note that performance may vary depending on the NFC phone and its RF management system.. System requirements Windows PC (XP or Vista) Two USB cables.4 Development toolchain Cosmic CXSTM8 compiler STMicroelectronics ST Visual Develop (STVD) integrated development environment STMicroelectronics STLINK/V in-circuit debugger and programmer 4/5 Doc ID 088 Rev

5 UM589 Features Features The M4LR-Discovery kit includes M4LR board and the RF transceiver board which offer the following features. M4LR board M4LR04E-R, a 4-Kbit EEPROM with an I²C-ISO/IEC 569 dual interface and an energy harvesting analog output (Vout pin) and a user-configurable digital output (RF Write-in-progress or Busy pin) in an SO8N package 9-turn,.56-MHz etched antenna (0mm x 40mm) for RF powering and communication STM8L5C6T6, 8-bit ultralow power microcontroller with up to Kbytes of Flash memory, Kbytes of RAM, and Kbyte of Data EEPROM in a 48-pin LQFP package STTS75 I²C low power temperature sensor 8-pin LCD on DIP4 socket (4 segments, 4 commons) Two push buttons (User and Reset) HC-49S-C0SSA, a 4-MHz crystal oscillator (not used in demonstration firmware) 4-pin connector (CN) for STM8L programming and debug (SWIM) -pin connector (CN) for external power supply source ( to 6V) 5-pin connector (CN) for M4LR04E-R and I²C bus probing -pin switch (JP) to select M4LR board power source (M4LR04E Vout pin or external) RF transceiver board CR95HF, a.56-mhz multi-protocol contactless transceiver IC with SPI and UART serial access communication -turn,.56-mhz etched loop antenna (47mm x 4 mm) with associated tuning circuit and lowpass filter STMF0CBT6, a -bit microcontroller with 8 Kbytes of Flash memory and USB interface in a 48-pin LQFP package KFBDT, a.v low dropout (LDO) voltage regulator USB connector NX50SA, a 7.-MHz EXS00A-CS006 crystal oscillator for CR95HF transceiver HC-49XA-C0QQA-8.000MHz for STM 0-pin JTAG connector for STM programming and debugging push button (Reset) Doc ID 088 Rev 5/5

6 Hardware and layout description UM589 Hardware and layout description. M4LR board description Figure. M4LR board layout 4-segment LCD (U) Reset button (B) User button (B) STM8L5C6T6 microcontroller (U) M4LR board power selection connector (JP) SWIM connector (CN) M4LR04E-R and I²C connector (CN) 4-MHz crystal oscillator (X) M4LR04E-R Dual interface EEPROM (U4) External power supply connector (CN) LDO voltage regulator for external power input (U5) STTS75 I²C temperature sensor (U) 9-turn,.56-MHz etched loop antenna 6/5 Doc ID 088 Rev

In this configuration, the M4LR board is powered by the magnetic field flowing into its 9-turn, etched loop antenna, delivered from a.56-mhz RF source, such as an RFID reader or an NFC phone.

7 UM589 Hardware and layout description. M4LR board power selection When jumper JP is set in the RF power position (Figure 4), the M4LR board is powered by the M4LR04E-R energy harvesting analog output (Vout pin). In this configuration, the M4LR board is powered by the magnetic field flowing into its 9-turn, etched loop antenna, delivered from a.56-mhz RF source, such as an RFID reader or an NFC phone. The DC voltage supply delivered by the M4LR04E-R Vout pin is filtered by an 0-nF capacitor (C9) and stored in the 50-µF capacitor (C). The low dropout (LDO) voltage regulator (U5) is bypassed, so the M4LR04E-R voltage is filtered but not regulated. Figure 4. Jumper JP set in RF power position When jumperjp is set in the REG." position (Figure 5), the M4LR board is powered by the external power supply connected on connector CN. The voltage applied on the external power supply connector CN is regulated by the.v voltage regulator (U5). The external power supply voltage can be from. to 6V. Using an external power supply is necessary when programming or debugging the STM8L MCU using the SWIM connector (CN). Figure 5. Jumper JP in REG_V position and external power connection It is also possible to connect an external antenna demonstration board featuring the energy harvesting function (ANTX-M4LRXXE) to improve or simply evaluate the energy harvesting function using a different antenna. Doc ID 088 Rev 7/5

Hardware and layout description UM589 Figure 6 and Figure 7

coming from the ANT- M4LR6E antenna demo board on jumper JP to

Figure 7 shows the connection of the Vout voltage coming from the

regulator (U5). Jumper JP must be set as shown in Figure 5.

8 Hardware and layout description UM589 Figure 6 and Figure 7 illustrate the use of an external antenna using the ANT-M4LR6E demonstration board. Figure 6 shows a possible direct connection of the Vout voltage coming from the ANT- M4LR6E antenna demo board on jumper JP to bypass the voltage regulator (U5). Figure 7 shows the connection of the Vout voltage coming from the ANT-M4LR6E antenna demo board on connector CN to use the voltage regulator (U5). Jumper JP must be set as shown in Figure 5. Figure 6. External antenna connection with voltage regulator bypass Figure 7. External antenna connection using M4LR board voltage regulator 8/5 Doc ID 088 Rev

9 UM589 Hardware and layout description. RF transceiver board description Figure 8. RF transceiver board layout (top and bottom) USB connector (J) LDO regulator User LED STMF0CBT6 0-pin JTAG connector (J) 7.-MHz crystal oscillator CR95HF RF IC Reset button -turn,.56-mhz loop antenna.4 RF transceiver demonstration board powering and startup The RF transceiver demonstration board is powered by the USB bus. When powered up, the CR95HF starts in an autonomous mode called tag hunting : the red LED lights up every time a tag is recognized. During Tag Hunting mode, the RF transceiver demonstration board switches ON and OFF the magnetic field at each RF protocol change. A constant magnetic field is naturally more appropriate to evaluate and develop battery-less applications based on the Energy Harvesting capability of the M4LRXXE-R EEPROM Family. Tag Hunting mode persists until the M4LR/CR95HF demonstration software is launched and the CR95HF is initialized by the software. At this moment, both Tag Hunting mode and the RF field stop. To activate a constant magnetic field emission, it possible either to open the Demo NDEF messages menu and select Show Demo NDEF & Energy Harvesting or send a single ISO/IEC569 RF command (Inventory, Read.). Doc ID 088 Rev 9/5

10 Hardware and layout description UM589.5 Program/debug the M4LR board To program or debug an STM8L microcontroller application on the M4LR board, simply:. Set jumper JP in the REG_V position.. Connect an external power supply to the V-6V connector (CN).. Connect the 4-pin SWIM connector of the STLINK/V in-circuit debugger and programmer to connector CN as described in Table. Table. M4LR board programming and debug connector Pin CN Designation Vcc VDD supply from M4LR board PA0 SWIM data input/output GND Ground supply 4 RESET SWIM reset.6 Program/debug the RF transceiver demo board To program or debug an STM microcontroller application on the RF transceiver demonstration board, simply:. Connect the 0-pin JTAG/SWD flat ribbon of the STLINK/V in-circuit debugger and programmer to the RF transceiver demonstration board JTAG connector (J). For more information, documentation about the STLINK/V in-circuit debugger and programmer, please visit 0/5 Doc ID 088 Rev

11 UM589 Electrical schematic diagrams 4 Electrical schematic diagrams Figure 9. M4LR board schematics B RESET(Black ) C8 00nF 4 R7 660 RESET# LD blue C6 0pF C0 X HC- 49S-C0SSA R 0pF 60 C X MC06- G-06Q-.768 (manufacturer JFVNY) 4 A L SWIM CN C uf C 00nF C4 00nF BEAD C uf C5 00nF RESET LED R 4K7 6.8pF C 6.8pF B USER(Blue) C9 00nF User_PB R LCD_SEG 7 LCD_SEG 7 4 COM COM COM0 COM C7 uf[ceramic] R 0 Not Fitted U TP 48 PA0 PE7 PE7 RESET# 47 LED PA PE6 OSC_IN 46 User_PB PA PC7 OSC_OUT 4 45 OSC_OUT PA PC6 LCD_COM OSC_IN PA4 PC5 LCD_COM 6 4 TemSensor_TNT PA5 PC4 LCD_COM 7 4 LCD_SEG PA6 PC LCD_SEG0 8 4 LCD_SEG PA7 PC 9 40 AVSS VSSI O 0 9 VDD VDDI O 8 IC_SCL A VDDA PC 7 IC_SDA VREF+ PC0 6 LCD_SEG VL CD PD7 LCD_SEG 4 5 LCD_SEG0 PE0 PD6 LCD_SEG 5 4 LCD_SEG9 PE PD5 LCD_SEG 6 LCD_SEG8 PE PD4 LCD_SEG4 7 RF_WI P/BUSY PE PF0 LCD_SEG5 8 LCD_SEG7 PE4 PB7 LCD_SEG6 9 0 LCD_SEG6 PE5 PB6 LCD_SEG7 0 9 LCD_SEG5 PD0 PB5 LCD_COM 8 LCD_SEG4 PD PB4 LCD_SEG8 7 LCD_SEG PD PB LCD_SEG9 6 LCD_SEG PD PB LCD_SEG0 4 5 LCD_SEG PB0 PB STM8L 5C6T6 User U GH087T External DC +V-6V CN JP Z MMSZ 57BT(do not f it) OSC_IN OSC_OUT OSC_IN OSC_OUT U Addr/Therm GND VDD STTS75-0WBF SDA EVENT SCL RF_POWER R8 0K R9 5K C4 0nF R0 5K RF_WI P/BUSY IC_SCL IC_SDA LCD_SEG0 LCD_SEG LCD_SEG LCD_SEG LCD_SEG4 LCD_SEG5 LCD_SEG6 LCD_SEG7 LCD_SEG8 LCD_SEG9 LCD_SEG0 LCD_COM LCD_COM LCD_SEG LCD_SEG LCD_SEG LCD_SEG0 LCD_SEG9 LCD_SEG8 LCD_SEG7 LCD_SEG6 LCD_SEG5 LCD_SEG4 LCD_SEG LCD_COM0 LCD_COM CN Header 5 REG_V RF_POWER C6 uf[ceramic] U5 Vin INHI BI T GND LD985MR Vout BYPASS 5 4 C5 4.7uF C8 00nF C7 uf[ceramic] Antenna RF_WI P/BUSY IC_SCL IC_SDA IC connector C C [N/A] TL NK57M006R500(50uF) Not Fitted U4 C9 0nF Vout AC0 AC VSS R4 K C 00nF R 0 RF WI P/BUSY SCL SDA M4LR04E- RMN6T/ C0 [N/A] R6 0K IC_SDA TemSensor_TNT IC_SCL Doc ID 088 Rev /5

12 Electrical schematic diagrams UM589 Figure 0. RF transceiver demonstration board schematics (STM connections) /5 Doc ID 088 Rev

13 UM589 Electrical schematic diagrams Figure. RF transceiver demonstration board schematics (CR95HF connections) Doc ID 088 Rev /5

14 Revision history UM589 5 Revision history Table 4. Document revision history Date Revision Changes 06-Nov-0 Initial release. 4/5 Doc ID 088 Rev

15 UM589 Please Read Carefully: Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries ( ST ) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST s terms and conditions of sale. Purchasers are solely responsible for the choice, selection and use of the ST products and services described herein, and ST assumes no liability whatsoever relating to the choice, selection or use of the ST products and services described herein. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted under this document. If any part of this document refers to any third party products or services it shall not be deemed a license grant by ST for the use of such third party products or services, or any intellectual property contained therein or considered as a warranty covering the use in any manner whatsoever of such third party products or services or any intellectual property contained therein. UNLESS OTHERWISE SET FORTH IN ST S TERMS AND CONDITIONS OF SALE ST DISCLAIMS ANY EXPRESS OR IMPLIED WARRANTY WITH RESPECT TO THE USE AND/OR SALE OF ST PRODUCTS INCLUDING WITHOUT LIMITATION IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE (AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION), OR INFRINGEMENT OF ANY PATENT, COPYRIGHT OR OTHER INTELLECTUAL PROPERTY RIGHT. UNLESS EXPRESSLY APPROVED IN WRITING BY TWO AUTHORIZED ST REPRESENTATIVES, ST PRODUCTS ARE NOT RECOMMENDED, AUTHORIZED OR WARRANTED FOR USE IN MILITARY, AIR CRAFT, SPACE, LIFE SAVING, OR LIFE SUSTAINING APPLICATIONS, NOR IN PRODUCTS OR SYSTEMS WHERE FAILURE OR MALFUNCTION MAY RESULT IN PERSONAL INJURY, DEATH, OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE. ST PRODUCTS WHICH ARE NOT SPECIFIED AS "AUTOMOTIVE GRADE" MAY ONLY BE USED IN AUTOMOTIVE APPLICATIONS AT USER S OWN RISK. Resale of ST products with provisions different from the statements and/or technical features set forth in this document shall immediately void any warranty granted by ST for the ST product or service described herein and shall not create or extend in any manner whatsoever, any liability of ST. ST and the ST logo are trademarks or registered trademarks of ST in various countries. Information in this document supersedes and replaces all information previously supplied. The ST logo is a registered trademark of STMicroelectronics. All other names are the property of their respective owners. 0 STMicroelectronics - All rights reserved STMicroelectronics group of companies Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan - Malaysia - Malta - Morocco - Philippines - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States of America Doc ID 088 Rev 5/5

AN4014 Application Note Adjustable LED blinking frequency using a potentiometer and STM8SVLDISCOVERY Application overview

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