RL78 Family Open Source FAT File System M3S-TFAT
Contents
1. M3S TFAT Tiny version 2 01 for RL78 IAR S2 code_model far data_model near Sep 11 2014 20 31 29 tfat_rl78_core_s3_m r87 M3S TFAT Tiny version 2 01 for RL78 IAR S3 code_model far data_model near Sep 11 2014 20 31 46 R20AN0159EJ0103 Rev 1 03 Page 8 of 15 Sep 01 2014 RENESAS RL78 Family Open Source FAT File System M3S TFAT Tiny Introduction Guide 4 4 ROM size RAM size Stack size TFAT library requires ROM RAM Stack size as below Table 7 ROM RAM size kind size ROM CSEG about 12KB RAM DSEG Abyte Stack size Note about 200byte Note Stack size is dependent on user defined function At least one variable of the structure FATFS is always required for FileSystem Work Area allocation The FIL and DIR structures will be needed as per the requirement The number of FIL variables needed is equal to the number of files that will be opened simultaneously by the user If two files are to be opened simultaneously then two FIL structure variables will be needed resulting in total memory consumption of 32 x 2 64 Bytes Likewise will be the case with DIR and other structure variables Table 8 structure size Structure Memory for one structure variable byte FATFS 558 FIL 32 DIR 18 FILINFO 22 R20AN0159EJ0103 Rev 1 03 Page 9 of 15 Sep 01 2014 RENESAS RL78 Family Open Source FAT File System M3S TFAT Tiny Introduction Guide 4 5 Performance The acc2. 0200 Fax 65 6213 0300 Renesas Electronics Malaysia Sdn Bhd Unit 906 Block B Menara Amcorp Amcorp Trade Centre No 18 Jin Persiaran Barat 46050 Petaling Jaya Selangor Darul Ehsan Malaysia Tel 60 3 7955 9390 Fax 60 3 7955 9510 Renesas Electronics Korea Co Ltd 12F 234 Teheran ro Gangnam Ku Seoul 135 920 Korea Tel 82 2 558 3737 Fax 82 2 558 5141 2014 Renesas Electronics Corporation All rights reserved Colophon 4 0
3. Flow Flow of a sample program is shown below main Is media resent Register filesystem work area Open file in write mode A Write data to the file Close the file Open file in read mode Position file pointer to start of the Read data to the file Compare the read data with write data Close the file Indicate completion on LED 1 END Figure 4 1 Flow of sample program R20AN0159EJ0103 Rev 1 03 Page 13 of 15 Sep 01 2014 RENESAS RL78 Family Open Source FAT File System M3S TFAT Tiny Introduction Guide Appendix Middleware Evaluation Board This appendix explains the information about the Middleware Evaluation Board Please design original circuit to refer to this appendix 1 The connection of a CPU board and Middleware Evaluation Board The following list shows connection when user operates sample program with CPU board and Middleware Evaluation Board Use CPU board Middleware Evaluation Board Application Header Microcontroller Header Jumper Pin No Header name Pin No Header name Power supply 3 3V JA1 3 CON_3V3 JA1 3 3V3 GND JA1 4 GROUND JA1 4 GND 3V3 MMC CLK JA1 15 100 JA1 15 MMC SCK MMC Data output JA1 17 102 JA1 17 MMC TXD MMC Data input JA1 16 IO JA1 16 MMC RXD MMC CardDetect JA2 21 TI00 JA2 21 MMC CardDetect MMC CS JA2 20 TO05 JA2 20 MMC CS PWM output JA1 23 SW3 INT4 JA1 23 PWM Microphone input JA1 9 ANI2 JA1 9 AD 2 Adjust parts
4. Page 7 of 15 Sep 01 2014 RENESAS RL78 Family Open Source FAT File System M3S TFAT Tiny Introduction Guide 4 For IAR Embedded Workbench 4 1 Development environment TFAT library can run with this development environment below Software tools Integrated Development Environment and C compiler IAR Embedded Workbench for Renesas RL78 version 1 40 2 Code Gererator tool Applilet3 for RL78 V1 05 00 Renesas board The sample program that uses TFAT IAR version is in the following Application note Document title Sound Playback Compression demonstration software for RL78 G14 CPU board Document number R20AN0194 Please download the sample code clicking following URL http www renesas com products tools middleware_and_drivers tiny_soft adpcm m3s_s2_tiny app_notes jsp 4 2 Compiler Option This product is specifically built for RL78 with the following compiler options tfat_r178_core_s2_m r87 core r178_1 code_model far data_model near near_const_location rom e Oh library_module tfat_r178_core_s3_m r87 core r178_2 code_model far data_model near near_const_location rom0 e Oh library_module 4 3 Version information TFAT library has version information as strings User can access this version information to use extern variable defined in header file define extern const mw_version_t R_tfat_version TFAT library has version information showed below tfat_rl78_core_s2_m r87
5. eeeeenseeeeeeasegeeeenseneeeseseeneeseseeeeneesesenens 5 3 2 Compiler option for generating library cccssecesceseeeeesneeeeseeeeeeeeesnaeseseeeeneneeseeeseseaeenseeeeeees 5 3 3 Version information caesi a un 5 3 4 ROM size RAM size Stack SiZ eccesccesseeeeseeeeeeeee eens se saeeneeeeeeeeeesaaeseseeeeeeeeeseesaseeeenseeeeee 6 3 5 PeriormantE eee ee Se ee 7 3 60 N t 7 4 For IAR Embedded Workbench ccccccccceceeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeseseseseseseseeeseseseneeenees 8 4 1 Development CNvironMentt cccceseeceeeeeeeeeeenseeeeeenseeeeeenseaeeeenseaeeeenseeeeenseeeeeenseeeeeseseneeneeseenenens 8 42 Compiler Option eege EENS ENNEN wate eee tee EA 8 4 3 Version information euer EEN ee ES EENS EES nnn 8 4 4 ROM size RAM size Stack SiZ c ecccsecesseeseseeeeeseeeeenesesaaeenseeeeeeeeesaeseseeeeeseeeseesaseeeeneneeenes 9 4S GEeHIOEIELDE Ee 10 db NOS a EE E E E E secateeess cennenseesvessedecduenedeseesseceas 10 5 Usage TE 11 6 Sample e LEE 12 6T a E 12 6 2 Sample software CXCCUTION ccceeteeeeeeeeseeeseeeeeseeeeeeneeseaesenaeeenseeeeeaeeesaesaseaeeeeeeessaesaseenenseeenes 12 E WE Oe E 13 R20AN0159EJ0103 Rev 1 03 Page 2 of 15 Sep 01 2014 RENESAS RL78 Family Open Source FAT File System M3S TFAT Tiny Introduction Guide 1 Structure of application note This application note includes files below Table 1 Structure of application note name description r20an0159ej0103_rl78_t
6. elating to military applications or use by the military including but not limited to the development of weapons of mass destruction When exporting the Renesas Electronics products or technology described in this document you should comply with the applicable export control laws and regulations and follow the procedures required by such laws and regulations 10 Itis the responsibility of the buyer or distributor of Renesas Electronics products who distributes disposes of or otherwise places the product with a third party to notify such third party in advance of the contents and conditions set forth in this document Renesas Electronics assumes no responsibility for any losses incurred by you or third parties as a result of unauthorized use of Renesas Electronics products 11 This document may not be reproduced or duplicated in any form in whole or in part without prior written consent of Renesas Electronics 12 Please contact a Renesas Electronics sales office if you have any questions regarding the information contained in this document or Renesas Electronics products or if you have any other inquiries Note 1 Renesas Electronics as used in this document means Renesas Electronics Corporation and also includes its majority owned subsidiaries Note 2 Renesas Electronics product s means any product developed or manufactured by or for Renesas Electronics 2rPENESAS SALES OFFICES Renesas Electronics Corporation http www rene
7. emory driver interface of TFAT library Please refer to a user s manual about Memory driver interface R20AN0159EJ0103 Rev 1 03 Page 11 of 15 Sep 01 2014 RENESAS RL78 Family Open Source FAT File System M3S TFAT Tiny Introduction Guide 6 Sample program 6 1 Outline The sample program is project for CubeSuite with RL78 G14 64pin CPU board And Sample programs include the project that implements MMC driver Please refer to the following for more information about MMC driver http japan renesas com products tools middleware tiny_soft tfat m3s_tfat_tiny app_notes jsp Document No R20AN0158 6 2 Sample software execution If a sample program is run FAT filesystem is initialized first A sample program writes 2 KB of text data in a memory media And a sample program displays an execution result on LED Table 11 Explanation of LED display LED1 LED2 Explanation ON OFF Program running OFF ON Error occurred ON ON Execution successful The sample data for file read write is stored in the r_data_file c The data is stored in an array of 2048 elements giving a total size of 2 KB 2048 Bytes The data array consists of the text string Renesas written repeatedly If required the user can modify this array and the corresponding macro FILESIZE R20AN0159EJ0103 Rev 1 03 Page 12 of 15 Sep 01 2014 RENESAS RL78 Family Open Source FAT File System M3S TFAT Tiny Introduction Guide 6 3
8. enesas Electronics products are not subject to radiation resistance design Please be sure to implement safety measures to guard them against the possibility of physical injury and injury or damage caused by fire in the event of the failure of a Renesas Electronics product such as safety design for hardware and software including but not limited to redundancy fire control and malfunction prevention appropriate treatment for aging degradation or any other appropriate measures Because the evaluation of microcomputer software alone is very difficult please evaluate the safety of the final products or systems manufactured by you 8 Please contact a Renesas Electronics sales office for details as to environmental matters such as the environmental compatibility of each Renesas Electronics product Please use Renesas Electronics products in compliance with all applicable laws and regulations that regulate the inclusion or use of controlled substances including without limitation the EU RoHS Directive Renesas Electronics assumes no liability for damages or losses occurring as a result of your noncompliance with applicable laws and regulations 9 Renesas Electronics products and technology may not be used for or incorporated into any products or systems whose manufacture use or sale is prohibited under any applicable domestic or foreign laws or regulations You should not use Renesas Electronics products or technology described in this document for any purpose r
9. ess time that TFAT library reads write memory card is below Table 9 Performance __ Test Condition RI78 G14 Time to write 1MByte data file About 5 5 Sec File Open Data write File close Time to read 1MByte data file About 2 0 Sec File Open Data read File close Detail of test condition is below Table 10 Measurement condition Detail of Test Condition RL78 G14 CPU Clock fCLk 32MHz Memory Transcend MMC 256MB FAT type FAT32 Cluster size 2048byte Driver software Renesas MMC driver R20AN0158JJ01 01 Source data area when data write Internal ROM Mirror area Destination data area when data read Internal RAM 4 6 Notes e Library is using the following standard function memset memcmp memcpy e This library corresponds Code model Far Data model Near When user use other memory models with TFAT library please re build the library that corresponds to user memory models using library build environment included in the package R20AN0159EJ0103 Rev 1 03 Page 10 of 15 Sep 01 2014 RENESAS RL78 Family Open Source FAT File System M3S TFAT Tiny Introduction Guide 5 Usage of Libraries Please include a library file and a header file in a project TFAT library does not contain the driver of a memory media SD card and a USB memory Please prepare the driver of a memory media by the user side in accordance with the hardware of use Please set the driver of a memory media by M
10. fat pdf Introduction Guide this document Workspace workspace Document doc English en r20uw0078ej0200_tfat pdf User s Manual r20an0159ej0103_rl78_tfat pdf Introduction Guide this document Japanese ja r20uw0078jj0200_tfat pdf User s Manual r20an0159jj0103_rl78_tfat pdf Introduction Guide IAR IAR Library lib TFAT library Device Code model Data model tfat_rl78_core_s2_m r87 RL78 core S2 Unspecified Far Near tfat_rl78_core_s3_m r87 RL78 core S3 Unspecified Far Near r_tfat_lib h Library header file r_stdint h Integer type define header file r_mw_version h Version number definition file l l Library generation environment make_lib Library source directory src Public Include header directory pub_include Build environment directory tfat_rl78_iar Library lib Sta rat libh Ch r_mw_version h Version number definition file Library generation environment make Ip Library source directory src i Public Include header directory pub_include Build environment directory tfat_rl78 Sample program sample Sample program for RL78 G14 with MMC driver TFAT_sample_RL78_with_MMC r20ut0684ej001 0_rl78g14 pdf RL78 G14 64pin CPU board Circuit Diagram r20ut0685jj001 0_rl78g15 pdf RL78 G14 64pin CPU board User s Manual Japanese r20ut0685ej0010_rl78g15 padf RL78 G14 64pin CPU board User s Manual English Schematic_Design__RL78_Middleware_ Middleware Evaluation B
11. fined at the moment when power is supplied The states of internal circuits in the LSI are indeterminate and the states of register settings and pins are undefined at the moment when power is supplied In a finished product where the reset signal is applied to the external reset pin the states of pins are not guaranteed from the moment when power is supplied until the reset process is completed In a similar way the states of pins in a product that is reset by an on chip power on reset function are not guaranteed from the moment when power is supplied until the power reaches the level at which resetting has been specified 3 Prohibition of Access to Reserved Addresses Access to reserved addresses is prohibited The reserved addresses are provided for the possible future expansion of functions Do not access these addresses the correct operation of LSI is not guaranteed if they are accessed 4 Clock Signals After applying a reset only release the reset line after the operating clock signal has become stable When switching the clock signal during program execution wait until the target clock signal has stabilized When the clock signal is generated with an external resonator or from an external oscillator during a reset ensure that the reset line is only released after full stabilization of the clock signal Moreover when switching to a clock signal produced with an external resonator or by an external oscillator while prog
12. iables will be needed resulting in total memory consumption of 32 x 2 64 Bytes Likewise will be the case with DIR and other structure variables Table 4 structure size Structure Memory for one structure variable byte FATFS 558 FIL 32 DIR 18 FILINFO 22 R20AN0159EJ0103 Rev 1 03 Page 6 of 15 Sep 01 2014 RENESAS RL78 Family Open Source FAT File System M3S TFAT Tiny Introduction Guide 3 5 Performance The access time that TFAT library reads write memory card is below Table 5 Performance __ Test Condition RI78 G14 Time to write 1MByte data file About 4 8 Sec File Open Data write File close Time to read 1MByte data file About 1 8 Sec File Open Data read File close Detail of test condition is below Table 6 Measurement condition Detail of Test Condition RL78 G14 CPU Clock fCLk 32MHz Memory Transcend MMC 256MB FAT type FAT32 Cluster size 2048byte Driver software Renesas MMC driver R20AN0158JJ01 01 Source data area when data write Internal ROM Mirror area Destination data area when data read Internal RAM 3 6 Notes e Library is using the following standard function memset memcmp memcpy e This library corresponds Medium model When user use othe memory models with TFAT library please re build the library that corresponds to user memory models using library build environment included in the package R20AN0159EJ0103 Rev 1 03
13. nics products are neither intended nor authorized for use in products or systems that may pose a direct threat to human life or bodily injury artificial life support devices or systems surgical implantations etc or may cause serious property damages nuclear reactor control systems military equipment etc You must check the quality grade of each Renesas Electronics product before using it in a particular application You may not use any Renesas Electronics product for any application for which it is not intended Renesas Electronics shall not be in any way liable for any damages or losses incurred by you or third parties arising from the use of any Renesas Electronics product for which the product is not intended by Renesas Electronics 6 You should use the Renesas Electronics products described in this document within the range specified by Renesas Electronics especially with respect to the maximum rating operating supply voltage range movement power voltage range heat radiation characteristics installation and other product characteristics Renesas Electronics shall have no liability for malfunctions or damages arising out of the use of Renesas Electronics products beyond such specified ranges 7 Although Renesas Electronics endeavors to improve the quality and reliability of its products semiconductor products have specific characteristics such as the occurrence of failure at a certain rate and malfunctions under certain use conditions Further R
14. oard Circuit Diagram Evaluation_Board V3_2 pdf R20ANO0159EJ0103 Rev 1 03 Page 3 of 15 Sep 01 2014 RENESAS RL78 Family Open Source FAT File System M3S TFAT Tiny Introduction Guide 2 Specification of library 2 1 Specification of TFAT library Following are some of the main specifications of the TFAT library Table 2 Specification of TFAT library item specifications Base program Fatfs R0 06 Supported FAT Type FAT12 FAT16 FAT32 Filename Support 8 3 format 8 lettered filename amp 3 lettered extension Long file name format is not supported Number of drives supported 1 Logical Sector size 512byte Filesystem format function None 2 2 Structure of software stack Following are structure of software stack of the TFAT library Application initialize librarys API FAT file system Driver I F device driver TFAT Library Q e lt bat s Ga M Figure 2 1 structure of software stack of the TFAT library R20AN0159EJ0103 Rev 1 03 Page 4 of 15 Sep 01 2014 RENESAS RL78 Family Open Source FAT File System M3S TFAT Tiny Introduction Guide 3 For CubeSuite 3 1 Development environment TFAT library can run with this development environment below Software tools e Integrated Development Environment CubeSuite V2 02 00 e C compiler CubeSuite CA78KOR V1 70 Debug tools e Emulator debugger EI emulator Board e RL78 G14 64pin CPU Board Rene
15. on RL78 G14 CPU Board Sample code that is included this application note is confirmed working on CPU board and Middleware evaluation board Please adjust each part on CPU board like below e Remove R60 Implement R63 for MMC connection e Remove R52 Implement R55 for MMC connection e Remove R71 Implement R74 for MMC connection e Remove R51 Implement R54 for PWM connection e Implement JA1 JA2 connector for Middleware evaluation board connection e Implement R21 for Middleware evaluation board 3 3 power supply e Short J13 2 3 for select regulator output e Open J10 for select regulator output 3 3V power supply e Short JP1 on Middleware evaluation board to PWM center 3 Circuit Schematic Please show the circuit schematic of Middleware Evaluation Board in ref folder R20AN0159EJ0103 Rev 1 03 Page 14 of 15 Sep 01 2014 RENESAS RL78 Family Open Source FAT File System M3S TFAT Tiny Introduction Guide Website and Support Renesas Electronics Website http www renesas com Inquiries http www renesas com contact All trademarks and registered trademarks are the property of their respective owners R20AN0159EJ0103 Rev 1 03 Sep 01 2014 RENESAS Page 15 of 15 Revision History Rev 1 03 1 02 1 01 Date Sep 01 2014 Nov 08 2013 Jan 31 2013 Description Page Summary Supported IAR Embedded Workbench Changed document title Changed the structure of sections Added Fatfs copy
16. ram execution is in progress wait until the target clock signal is stable 5 Differences between Products Before changing from one product to another i e to a product with a different part number confirm that the change will not lead to problems The characteristics of an MPU or MCU in the same group but having a different part number may differ in terms of the internal memory capacity layout pattern and other factors which can affect the ranges of electrical characteristics such as characteristic values operating margins immunity to noise and amount of radiated noise When changing to a product with a different part number implement a system evaluation test for the given product Notice 1 Descriptions of circuits software and other related information in this document are provided only to illustrate the operation of semiconductor products and application examples You are fully responsible for the incorporation of these circuits software and information in the design of your equipment Renesas Electronics assumes no responsibility for any losses incurred by you or third parties arising from the use of these circuits software or information 2 Renesas Electronics has used reasonable care in preparing the information included in this document but Renesas Electronics does not warrant that such information is error free Renesas Electronics assumes no liability whatsoever for any damages incurred by you resulting from e
17. right to library source Product structure is changed C hanged into ZIP download form from installer form Change of development environment Compiler version is corrected Correction of library stack size Performance is added Change of written contents of appendix The connection information on a memory card conversion board and RL78 G14 CPU board is added A wiring schematic view and RL778 G14 CPU board appearance photograph are added 1 00 Mar 31 12 First edition issued A 1 General Precautions in the Handling of MPU MCU Products The following usage notes are applicable to all MPU MCU products from Renesas For detailed usage notes on the products covered by this document refer to the relevant sections of the document as well as any technical updates that have been issued for the products 1 Handling of Unused Pins Handle unused pins in accordance with the directions given under Handling of Unused Pins in the manual The input pins of CMOS products are generally in the high impedance state In operation with an unused pin in the open circuit state extra electromagnetic noise is induced in the vicinity of LSI an associated shoot through current flows internally and malfunctions occur due to the false recognition of the pin state as an input signal become possible Unused pins should be handled as described under Handling of Unused Pins in the manual 2 Processing at Power on The state of the product is unde
18. rrors in or omissions from the information included herein 3 Renesas Electronics does not assume any liability for infringement of patents copyrights or other intellectual property rights of third parties by or arising from the use of Renesas Electronics products or technical information described in this document No license express implied or otherwise is granted hereby under any patents copyrights or other intellectual property rights of Renesas Electronics or others 4 You should not alter modify copy or otherwise misappropriate any Renesas Electronics product whether in whole or in part Renesas Electronics assumes no responsibility for any losses incurred by you or third parties arising from such alteration modification copy or otherwise misappropriation of Renesas Electronics product 5 Renesas Electronics products are classified according to the following two quality grades Standard and High Quality The recommended applications for each Renesas Electronics product depends on the product s quality grade as indicated below Standard Computers office equipment communications equipment test and measurement equipment audio and visual equipment home electronic appliances machine tools personal electronic equipment and industrial robots etc High Quality Transportation equipment automobiles trains ships etc traffic control systems anti disaster systems anti crime systems and safety equipment etc Renesas Electro
19. sas e Middleware Evaluation Board Renesas type ROK50104LCOOOBR Please refer to Appendix 3 2 Compiler option for generating library Library file is built with compile option It changed the following options from the default option Add debug information No ng Output common object file for various devices Yes common 3 3 Version information TFAT library has version information as strings User can access this version information to use extern variable defined in header file define extern const mw_version_t R_tfat_version TFAT library has version information showed below M3S TFAT Tiny version 2 01 for RL78 S2 MEDIUM Sep 11 2014 20 29 07 R20AN0159EJ0103 Rev 1 03 Sep 01 2014 RENESAS Page 5 of 15 RL78 Family Open Source FAT File System M3S TFAT Tiny Introduction Guide 3 4 ROM size RAM size Stack size TFAT library requires ROM RAM Stack size as below Table 3 ROM RAM size kind size ROM CSEG about 12 7KB RAM DSEG Abyte Stack size Note about 200byte Note Stack size is dependent on user defined function At least one variable of the structure FATFS is always required for FileSystem Work Area allocation The FIL and DIR structures will be needed as per the requirement The number of FIL variables needed is equal to the number of files that will be opened simultaneously by the user If two files are to be opened simultaneously then two FIL structure var
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21. v tEN E SAS APPLICATION NOTE RL78 Family R20AN0159EJ0103 Rev 1 03 Open Source FAT File System M3S TFAT Tiny Introduction Guide Sep 01 2014 Introduction This document explains the usage of the Open Source FAT File System M3S TFAT Tiny for RL78 Family V 2 01 Release 00 hereafter referred to as TFAT library along with a sample program Please refer to the User s Manual to understand how to use the software library User s Manual is in this application note And we prepared Sound Playback Record demonstration software for the YRDKRL78G14 as sample application program for TFAT Library Please refer to the following URL for details http www renesas com products tools middleware_and_drivers tiny_soft adpcm m3s_s2_tiny app_notes jsp Document NO R20AN0194 Target Device RL78 G14 R20AN0159EJ0103 Rev 1 03 Page 1 of 15 Sep 01 2014 RENESAS RL78 Family Open Source FAT File System M8S TFAT Tiny Introduction Guide Contents 1 Structure of application pofe o2sserageeuseuuESeeESEENEEKNEENSESEESEEEEENEENE SEENEN 3 2 Specification of brary svsccescensicnesceeceasccennctunspdececndenncsanteecdesncecdseanennenancneedenieancceanenseeeneeees 4 2 1 Specification Of TFAT library s sssnssunssunnnunneunnnunnennnnnnnnunnnunnnnnnnnnnnnnnnnnnnnnnnnnnn anneanne ennnen ennen 4 2 2 Structure Of Software Stakir aa aaea AECH 4 e E E eee ere E A T EES 5 3 1 Development environment cccceseeceeeeseeeeeenseeeeeenneeeeeens
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