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AN3985 Datasheet(PDF) 1 Page - STMicroelectronics |
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AN3985 Datasheet(HTML) 1 Page - STMicroelectronics |
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1 / 105 page  February 2012 Doc ID 022255 Rev 2 1/105 AN3985 Application note Using the CR95HF library with STM8L microcontrollers 1 Introduction This document describes the CR95HF library allowing an STM8L microcontroller to drive the CR95HF 13.56 MHz multiprotocol contactless transceiver using an SPI or UART interface, in order to perform wireless communications with ISO/IEC15693 contactless tag. The library was developed to speed up the development of applications using the CR95HF. The CR95HF library is composed of three layers: ■ Low level CR95HF layer ■ Standard ISO/IEC 15693 protocol layer ■ Product layer (LRIxK and Dual Interface EEPROM contactless tag) The library code has been developed in ANSI C language, and validated on an STM8L evaluation board. The firmware runs either on the STM8L1528-EVAL evaluation board or the STM8L- DISCOVERY board. The MCU can be either the STM8L152M8 (on the STM8L1528-Eval board) or the STM8L152C6 (STM8L-DISCOVERY). 1.1 Reference documents ■ ISO/IEC 15693 specification ■ LRIxK ISO/IEC 15693 contactless memory with 64-bit UID, AFI, DSFID, anti-collision and kill function datasheet ■ CR95HF 13.56-MHz multi-protocol contactless transceiver IC with SPI and UART serial access datasheet ■ M24LRxx dual interface EEPROM with password protection datasheet ■ UM1037: STM8L1528-EVAL evaluation board user manual ■ UM0970: STM8L-DISCOVERY evaluation board user manual www.st.com |
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