# Release Notes for RFAL software Library Copyright 2019 STMicroelectronics
The RFAL Library (RF Abstraction Layer) provides several functionalities required to perform RF/NFC communications. The RFAL encapsulates the different RF ICs (ST25R3911, ST25R3916, ST25R95 and future ST25R devices) into a common and easy to use interface. The technologies currently supported by RFAL are: NFC-A \ ISO14443A (T1T, T2T, T4TA) NFC-B \ ISO14443B (T4TB) NFC-F \ FeliCa (T3T) NFC-V \ ISO15693 (T5T) P2P \ ISO18092 (NFCIP1, Passive-Active P2P) ST25TB (ISO14443-2 Type B with Proprietary Protocol) PicoPass \ iClass B' \ Calypso CTS \ CTM The protocols provided by RFAL are: ISO-DEP (ISO14443-4) NFC-DEP (ISO18092) ## Update History ### V2.2.0 / 22-May-2020 Main Changes Better alignment to NFC Forum latest requirements (CR12) Extended NFC-V module with non-addressed mode support and improved aticollision Feature Switches changed to be not mandatory. Modules disabled by default Aligned APIs on platform.h (breaks compatibility with previous versions, see example in rfal.chm) Added API for release/deletion of timers ST25R3916 default analog table modified to X-NUCLEO-NFC06A1 board Improved AP2P operation Fixed issues introduced on previous release linked to SFGT and anticollision retries Introduced Low-Power mode Several driver improvements ### V2.1.2 / 27-Jan-2020 Main Changes Extended ISO-DEP and NFC-A module to support non-blocking activation interfaces Extended NFC/HL module to make use of the new APIs further splitting the execution of the worker during the different activities Modified NFC-A anticollision to strictly comply to NFC Forum DP. A separate proprietary method is now available. NFC-V changed to use OOK (100% AM) by default Fixed FWT used by NFC-V Sleep Fixed NFC-F FDT Poll value Fixed incorrect register access on ST25R3911B RFO Get/Set method SPI driver modified to clear Rx buffer prior to operation Added further code size optimizations based on enabled features Updated ST25R3916 driver to DS Rev2 Updated SW Tag Detection as describded in AN Rev3 Several driver improvements ### V2.1.0 / 30-Sep-2019 Main Changes Extended RFAL NFC Higher Layer for increased functionality and configurations Several improvements on the ISO-DEP protocol layer Protocol buffer sizes made fully configurable for increased memory management Introduced option for Collision Avoidance with Automatic Gain Control Several driver improvements ST25R3916 overheat protection disabled RF Transceive modified for transmission errors to precede other errors Analog Configs extended to support different DPO power levels ### V2.0.10 / 25-Jun-2019 Main Changes Various improvements on RFAL NFC Higher layer Added alternative NFC-V anticollision method (non NFC Forum compliant) Several minor improvements and fixes ### V2.0.6 / 10-Apr-2019 Main Changes Several NFC-V interoperability improvements Extended support for specific features of ST's ISO15693 Tags. New ST25Dx module added Interrupt handling changed and further protection added RFAL feature switches have been modified and features are now disabled if omitted ST25R3916 AAT (Automatic Antenna Tunning) module added RFAL NFC Higher layer added Several driver improvements ### V2.0.4 / 06-Fev-2019 Provided with ST25R3916 DISCO v1.0.0 / EMVCo v1.2.0 Main Changes Minor improvements on NFC-F module Several improvements on NFC-V module including support for ST proprietary features Fixed issue with Delta RWT calculation Fixed incorrect usage of NFCB dTbPoll / DdFWT Added compile switch for Listen Mode Low power Listen Mode support added Listen Mode aligned to NFC Forum Digital 2.1 Added handling for EMVCo 3.0 static FDTListen Introduced SW Tag Detection ### V2.0.2 / 31-Oct-2018 Provided with ST25R3916 DISCO v0.9.4 (binary only) Main Changes New T4T module added Added support for T3T Check and Update commands Improved NFC-V module and added Write Multiple Blocks support New rfalWorker protection added for improved control in multi-thread environments Added support for user defined Analog Config tables Several driver improvements and protections added ### V2.0.0 / 28-Aug-2018 Main Changes MISRA C 2012 compliant ST25R3916 support added ST25R95 support added Fix unwanted Field Detector disable when entering Wake-up mode Extended Analog Config to have specific events Fixed NFC-DEP potential issue if DID used Extended NFC-V commands T2T module added Improved initial Listen mode handling Extended Wake-Up mode to support Capacitive measurement ### V1.3.6 / 08-May-2018 Provided with ST25R3911B DISCO v1.2.0 Main Changes Added ISO15693 x4 and x8 mode support Added S(PARAMETERS) support Interface changes for measurement, Wake-Up and DPO methods Added further feature switches to enable/disable individual modules Changed communication protection Improved NFC-A anti-collision Several driver improvements ### V1.3.4 / 07-May-2018 Main Changes Fixed NFC-V Read operation in addressed mode ### V1.3.2 / 31-January-2018 Main Changes Modified Wake-Up mode interface Fixed SFGI calculation in ISO-DEP ### V1.3.0 / 22-January-2018 Main Changes Introduced a new IRQ status handling to read the registers only once Several changes for supporting Linux platform SPI Select/Deselect moved to platform.h Aditional protection of the IRQ status reading, new macros available: platformProtectST25R391xIrqStatus / platformUnprotectST25R391xIrqStatus Renamed the IRQ Enable/Disable macros to platformProtectST25R391xComm / platformUnprotectST25R391xComm Renamed SPI pins from chip specific to ST25R391X Introduced a new option ST25R391X_COM_SINGLETXRX which executes SPI in one single exchange (additional buffer required) Updated and added errata handlings to latest ST25R3911 Errata version Fixed inconsitency on Analog settings for NFC-V Fixed issue on NFC-V 1of256 decoding Changed the default NFC-A FDT Listen to be more strict Added Wake-Up mode support Added RFAL version definition ### V1.2.0 / 17-August-2017 Provided with ST25R3911B Disco v1.1.16 Main Changes Aligned Technology modules to NFC Activity v1.1 and EMVCo v2.6 Extended NFC-B Collision Resolution allowing user define Slots Added feature switches to enable/disable individual modules ISO-DEP Interface changes allowing more user configurations and further EMVCo alignment Changed ST25TB detection to always perform Anti Collision loop regardeless of the result of the Poll Fixed FIFO WL handling Modified FDT Poll handling changed rfalCalibrate() to not overwrite dynamic configs Added adjustment for TR1PUTMIN ### V1.1.0 / 30-June-2017 Provided with ST25R3911B Disco v1.1.12 Main Changes EMD supression enabled for ST25R3911B ### V1.0.0 / 16-May-2017 Provided with X-NUCLEO-NFC05A1 v1.0.0 Main Changes Added support for B', CTS and PicoPass/iClass mode Several impromvements for NFC-V mode Improved error detection during NFC-B collision resolution Extended T1T module ### V0.9.0 / 02-March-2017 Provided with ST25R3911B Discovery Kit on Embedded World Conference (binary only) Main Changes