56F801XBLUG, 56F801x Serial Bootloader - User`s Guide
Contents
1. 96F801x Serial Bootloader User Guide 56F8000 16 bit Digital Signal Controllers 56F801xBLUG Rev 1 0 12 2005 e freescale com freescale semiconductor TABLE OF CONTENTS About This Document AIM Ass ad kama kaasad coe a Sam d ne ele aada kaemas a kk E EO PR ca V KEN usse ami PP ek P Re ut V Suggested Reading AA APP TR TRI RATS V at ll do CPP vi Definitions Acronyms and Abbreviations eee vii REFERERE BA oda PNG EE a T T iai nas I ae de pu a i RC TE vii Chapter 1 Bootloader TT SE ODA a eee oe 3d udis dal dose abrite A iile dea ded d HER KA 1 1 1 11 Start up Sequence with Bootloader akt 1 2 t EGA MIA APAPAP deal AA ta sm ee AA 1 3 113 dc on dd 111 E RA jaaa k snad kt teki 1 3 1 1 4 Bootloader Hardware Set up eee eee ce eee eee eee eee eee 1 6 1 1 5 Host Terminal Set up ss ea pana di vennad AK es kaa mk ai 1 6 1 1 6 BUB a EK ICE il ein l he keress EEE ee ab RT 1 7 1 1 7 Download into Program Flash eua 4 pt ak a la slave kaasat a 1 7 1 1 8 T AA PA AA AA AP 1 8 1 1 9 Requirements for a Loaded Program een eenea 1 8 1 110 S Record CSSA ETT 1 8 191 Peripheral UsagO ous as entame a dor n E a ee ed d o eee ad OKA A 1 9 LATE Penase Dala 2 au Chek ukki da a CEE du k kukk dk du SS 1 10 Tole GUAM ES s 1 10 Chapter 2 License 2 1 Limited Use License Agreement ccm 2 1 Appendix A Serial Bootloader Test Application Appendix B Serial Bootloader Revision History Ta2. The Max Record Length option gives the maximum number of bytes that can be used to comprise the address and data fields for a given S Record To reduce S Record parsing overhead this option should be set with a large number Although the maximum value for this option is 255 CodeWarrior will use 252 by default The EOL Character option determines what type of line ending will be used for the S Record file To ensure proper parsing ofthe S Record file this option must be set to DOS 1 1 11 Peripheral Usage The 56F801x Serial Bootloader uses the Flash Module FM Interrupt Controller ITCN On Chip Clock Synthesis OCCS Phase Locked Loop PLL and Serial Communications Interface SCI peripherals The PLL clock is enabled to allow a 32MHz system clock and assumes the Internal Relaxation Oscillator input frequency is SMHz The FM Clock Divide value used by the application also assumes an 8MHz Internal Relaxation Oscillator input The SCI Baud Rate value used was calculated to achieve 115 200 baud communication assuming a Bootloader Rev 1 0 Freescale Semiconductor 1 9 Preliminary Serial Bootloader 32MHz system clock After downloading a new application with the Serial Bootloader a hardware reset is required to run the application The hardware reset will restore all peripheral registers to default values before running the new application 1 1 12 Performance Data The Serial Bootloader applicati
3. Freescale Semiconductor Preliminary Definitions Acronyms and Abbreviations The following list defines the acronyms and abbreviations used in this document As this template develops this list will be generated from the document As we develop more group resources these acronyms will be easily defined from a common acronym dictionary Please note that while the acronyms are in solid caps terms in the definition should be initial capped ONLY IF they are trademarked names or proper nouns COP Computer Operating Properly DSC Digital Signal Controller EVM Evaluation module FM Flash Module IDE Integrated Development Environment PC Personal Computer PLL Phase Locked Loop RAM Random Access read write Memory SCI Serial Communications Interface References The following sources were used to produce this book 1 Freescale DSP56800E Reference Manual DSP56800ERM 2 56F8000 Peripheral Reference Manual MC56F8000RM 3 Freescale website www freescale com Preface Rev 1 0 Freescale Semiconductor vii Preliminary 56F801x Bootloader User Guide Rev 1 0 viii Freescale Semiconductor Preliminary Serial Bootloader Chapter 1 Bootloader 1 1 Serial Bootloader All 56F801x family devices are preprogrammed with the Serial Bootloader application The Serial Bootloader has been developed to load and run a proprietary user application presented as an S Record file into the Program Memory The Serial Bootloader is located
4. series of LEDs connected to GPIOA 2 0 at 1Hz Otherwise the LEDs will remain off to indicate failure Versions of the test application are available in S record format for each 56F801x device 1 e test app 56F8013 test app 56F8014 on the Freescale website http www freescale com as part of the 56F801x Serial Bootloader software package The test application source code is also available on the website To obtain any desired files go to Products Digital Signal Processors and Controllers 56800 E 56F8013 Design Tools Software Application Software Serial Bootloader Test Application Rev 1 0 Freescale Semiconductor Appendix A 1 Preliminary 56F801x Bootloader User Guide Rev 1 0 Appendix A 2 Freescale Semiconductor Preliminary Appendix B Serial Bootloader Revision History This document was targeted for the most recent version of the 56F801x Serial Bootloader You should reference this section if you are using an older version of the Bootloader software where some of the differences in functionality of the older revisions will be covered in detail s Bootloader Messages While newer versions of the Bootloader 1 3 and higher show an error code containing the types of errors encountered previous versions do not send such a descriptive message The following block of text is an example of what is seen on a terminal program when an error occurs on a device running Bootloader versions 1 2 and lower MC56F80
5. a new S record file 1 1 1 4 Step 4 Switch to New Application Once the 56F801x Serial Bootloader has reprogrammed the Flash with the data from the S record file it enters an infinite loop to prevent further code execution A hardware reset is necessary to begin executing the downloaded application The reset causes the processor to begin executing code contained in the Hardware Reset vector which should now contain a JMP instruction to an address used as the entry point for the new application The reset also returns all peripheral registers to default values 56F801x Bootloader User Guide Rev 1 0 1 2 Freescale Semiconductor Preliminary Serial Bootloader 1 1 2 Bootloader History The most current version of the Bootloader is 1 5 When running the Serial Bootloader application the version number is contained in a message transmitted over the serial port The Bootloader version history can be seen in the following table see Appendix B for functionality differences between versions Known Issues a A default terminal serial program line ending character terminator is not supported Work around through the serial application configuration See Appendix B for the work around b XON XOFF flow control requires 2ms line delays Work around through the serial application configuration See Appendix B for the work around c An odd number of data bytes in S3 Record will hang execution A work around PERL script is available on th
6. in the dedicated Program Memory region called Program Flash The Serial Bootloader supports the simplest serial protocol so any standard serial terminal program can be used on the host PC The Serial Bootloader application reads the S Record file of a user application for example generated by CodeWarrior via serial interface parses this S Record file and stores needed data in Program Flash memory When the processing of the S Record file is finished the Bootloader will remain in an infinite loop Resetting the device will allow the downloaded application to be launched If any error occurs while loading the S Record file the Bootloader outputs an error message via the serial line and will prompt the user to resend the S Record file See Figure 1 1 gt Program Flash 1 CE iy LII LEE Figure 1 1 Programming Flash on a 56F801x Device p10994 S Bootloader Running Bootloader Rev 1 0 Freescale Semiconductor Preliminary Serial Bootloader 1 1 1 Start up Sequence with Bootloader The following steps describe the Bootloader s start up sequence 1 1 1 1 Step 1 Power up Reset The 56800E core specifies two reset vectors Hardware Reset and COP Reset The reset vectors are each two words wide and reside in consecutive addresses in the beginning of Program Flash The Hardware Reset vector identifies the address the processor accesses after a power on reset external reset
7. or software reset The COP Reset vector is accessed after a watchdog time out When the 56F801x Bootloader is present both reset vectors will contain an entry point to the Serial Bootloader application Once the Serial Bootloader has begun reprogramming the Flash the entire Flash will be erased Since this affects the reset vectors it is critical that no resets are asserted until the Serial Bootloader application has concluded 1 1 1 2 Step 2 Transfer Code from Program Flash to RAM Before the Serial Bootloader application can execute portions of the software must be moved from Program Flash to RAM This is necessary because the Program Flash is to be erased and reprogrammed with new data Only the portions of the Serial Bootloader application used to reprogram Flash with S record data are transferred Initialization code used by the Serial Bootloader application will be lost once the application has begun modifying Program Flash 1 1 1 3 Step 3 Write New Application to Program Flash Once the Serial Bootloader has processed a valid S0 S record it erases the entire Program Flash in anticipation of new data Program Flash is written with new data each time a valid S3 S record has been processed The Serial Bootloader application will not reprogram any RAM locations In the event of an error a notification will be sent over the serial port The application will flush all data associated with the current S record file and wait for the user to send
8. 1x Serial Bootloader v1 1 Waiting for S record file PROGRAM amp DATA Download Aborted Waiting for S record file Host Terminal Set up Bootloader versions 1 2 and lower require additional terminal configuration options additional options are highlighted in bold in Table B 1 Table B 1 PC Serial Communication Settings for Versions 1 2 and Lower Baud Rate 115200bps Data Format 8NI 8 data bits no parity 1 stop bit character format Flow Control Protocol Xon Xoff Line Delay 2ms Line Ending r carriage return followed by n newline Figure B 1 shows how to configure HyperTerminal for use with 56F801x Serial Bootloader Versions 1 2 and lower Serial Bootloader Revision History Rev 1 0 Freescale Semiconductor Appendix B 1 Preliminary COM4 Properties Figure B 1 HyperTerminal Configuration Example for Versions 1 2 and Lower s S Record Formatting Bootloader versions 1 3 and lower are unable to fully process data in S3 records if the S record data field contains an odd number of bytes These versions of software assumed that all S3 records would contain an even number of actual data bytes This assumption was based on the fact the 56800 E is a 16 bit architecture with 16 bit program opcodes A PERL script is available to modify S record files containing odd S3 data After using the script to convert an S record file it should be safe to use on al
9. C Serial Communication Settings Baud Rate 115200bps Data Format 8N1 8 data bits no parity 1 stop bit character format Flow Control Protocol Xon Xoff Note See Appendix B for additional configuration options required by Serial Bootloader versions prior to 1 3 Once your serial port has been properly configured the serial communications application should be capable of displaying any 56F801x Serial Bootloader messages An example of how to obtain this configuration using HyperTerminal follows 56F801x Bootloader User Guide Rev 1 0 1 6 Freescale Semiconductor Preliminary Serial Bootloader COM 4 Properties Xon Xoff E Figure 1 4 HyperTerminal Configuration Example 1 1 6 Build All 56F80 1x devices should be preprogrammed with the Serial Bootloader application However source code is provided in the event it is necessary to reprogram a 56F801x device with the Serial Bootloader application via CodeWarrior see Section 1 1 3 To build the Serial Bootloader first open the bootloader mcp project file using the CodeWarrior IDE Although this project uses the 56F8013 CPU bean it is not necessary to change the target processor when building for other 56F801x devices This single project generates code executable on all 56F801x devices Next select the Project Make command which builds and links the Serial Bootloader application 1 1 7 Download into Program Flash Load the software onto the 56F801x d
10. RoHS compliant and or Pb free versions of Freescale products have the unctionality and electrical characteristics of their non RoHS compliant and or non Pb free counterparts For further information see http www freescale com or contact your Freescale sales representative For information on Freescale s Environmental Products program go to http www freescale com epp nformation in this document is provided solely to enable system and software implementers to use Freescale Semiconductor products There are no express or implied copyright licenses granted hereunder to design or abricate any integrated circuits or integrated circuits based on the information in this document Freescale Semiconductor reserves the right to make changes without further notice to any products herein Freescale Semiconductor makes no warranty representation or guarantee regarding the suitability of its products for any particular purpose nor does Freescale Semiconductor assume any liability arising out of the application or use of any product or circuit and specifically disclaims any and all liability including without limitation conseguential or incidental damages Typical parameters that may be provided in Freescale Semiconductor data sheets and or specifications can and do vary in different applications and actual performance may vary over time All operating parameters including Typicals must be validated for each customer application by
11. ace vii Phase Locked Loop PLL Preface vii PLL Preface vii R RAM Preface vii Random Addess Memory RAM Preface vii S SCI Preface vii Serial Communications Interface SCI Preface vii S Record file 1 1 Index Rev 1 0 Freescale Semiconductor Preliminary How to Reach Us Home Page www freescale com E mail support freescale com USA Europe or Locations Not Listed Freescale Semiconductor Technical Information Center CH370 1300 N Alma School Road Chandler Arizona 85224 1 800 521 6274 or 1 480 768 2130 support freescale com Europe Middle East and Africa Freescale Halbleiter Deutschland GmbH Technical Information Center Schatzbogen 7 81829 Muenchen Germany 44 1296 380 456 English 46 8 52200080 English 49 89 92103 559 German 33 1 69 35 48 48 French support freescale com Japan Freescale Semiconductor Japan L td Headquarters ARCO Tower 15F 1 8 1 Shimo Meguro Meguro ku Tokyo 153 0064 Japan 0120 191014 or 81 3 5437 9125 support japan freescale com Asia Pacific Freescale Semiconductor Hong Kong Lid Technical Information Center 2 Dai King Street Tai Po Industrial Estate Tai Po N T Hong Kong 800 2666 8080 support asia freescale com For Literature Requests Only Freescale Semiconductor Literature Distribution Center P O Box 5405 Denver Colorado 80217 1 800 441 2447 or 303 675 2140 Fax 303 675 2150 LDCForFreescaleSemiconductor hibbertgroup com
12. al Bootloader application Doc This directory contains miscellaneous files generated by the Processor Expert tool related to project settings and the stationery used Set up This directory contains set up files used to configure serial communication applications such as HyperTerminal and Tera Term Pro Test This directory contains various S record files used to test the Serial Bootloader application The Serial Bootloader application source code is available on the Freescale website http www freescale com and contains the Serial Bootloader application source code and other associated files To download the Serial Bootloader package go to Products Digital Signal Processors and Controllers 56800 E 56F8013 Design Tools Software Application Software 56F801x Bootloader Bootloader Rev 1 0 Freescale Semiconductor 1 5 Preliminary Serial Bootloader 1 1 4 Bootloader Hardware Set up These requirements must be met to use the Bootloader It must be programmed into Program Flash The RS 232 socket must be connected by serial cable with the host PC s COM serial port See Figure 1 3 56F801x Board RS 232 S Record q A Po Figure 1 3 Loading a User s Application via Serial Bootloader 1 1 5 Host Terminal Set up A host terminal program is used to communicate with the Bootloader The terminal must be configured to the following mode Table 1 2 P
13. ble of Contents Rev 1 0 Freescale Semiconductor i Preliminary 56F801x Bootloader User Guide Rev 1 0 Freescale Semiconductor Preliminary Figure 1 1 Figure 1 2 Figure 1 3 Figure 1 4 Figure 1 5 Figure 1 6 Figure B 1 LIST OF FIGURES Programming Flash on a 56F801x Device 1 1 Serial Bootloader Directory Structure and Files 1 4 Loading a User s Application via Serial Bootloader 1 6 HyperTerminal Configuration Example e 1 7 S Record Settings in the User Application s Project Settings 1 9 Serial Bootloader Status Code 66 ios xx RII amp male 1 11 HyperTerminal Configuration Example for Versions 1 2 and Lower B 2 List of Figures Rev 1 0 Freescale Semiconductor iii Preliminary 568F801x Bootloader User Guide Rev 1 0 Freescale Semiconductor Preliminary About This Document This manual describes the 56F801x Serial Bootloader application Audience This manual targets software developers utilizing the 56F801x Bootloader applications Organization This manual consists of the following sections e Chapter 1 Bootloader describes the Serial Bootloader e Chapter 2 License provides the license required to use this product Suggested Reading We recommend that you have a copy of the following references Freescale DSP56800E Reference Manual DSP56800ERM e 56F8000 Periphe
14. customer s technical experts Freescale Semiconductor does not convey any license under its patent rights nor the rights of others Freescale Semiconductor products are not designed intended or authorized for use as components in systems intended for surgical implant into the body or other applications intended to support or sustain life or for any other application in which the failure ofthe Freescale Semiconductor product could create a situation where personal injury or death may occur Should Buyer purchase or use Freescale Semiconductor products for any such unintended or unauthorized application Buyer shall indemnify and hold Freescale Semiconductor and its officers employees subsidiaries affiliates and distributors harmless against all claims costs damages and expenses and reasonable attorney fees arising out of directly or indirectly any claim of personal injury or death associated with such unintended or unauthorized use even if such claim alleges that Freescale Semiconductor was negligent regarding the design or manufacture of the part e oe freescale semiconductor Freescale and the Freescale logo are trademarks of Freescale Semiconductor Inc All other product or service names are the property of their respective owners This product incorporates SuperFlash technology licensed from SST Freescale Semiconductor Inc 2005 All rights reserved 56F801xBLUG Rev 0 12 2005
15. e Freescale FAQ website http faqts freescale net FAQ 25759 contains the script as well as a detailed explanation of the problem Table 1 1 Software Revision History Version Number Known Issues Actions Resolutions 1 2 a b c 1 3 C Corrected a and b 1 5 Corrected c 1 1 3 Files TM The Serial Bootloader application was developed using CodeWarrior with Processor Expert PE and makes use of the standard files generated for PE projects Some of the standard PE files were modified however to support special functionality needed by the application Bootloader Rev 1 0 Freescale Semiconductor 1 3 Preliminary Serial Bootloader bootloader mcp L smm pROM xRAM E183 Support HE Lib BH MSL C 568006 lib AB Runtime 56800E Lib E a Generated Code Cpu c SCI1 c a Vectors c Rl smm pROM RAM emd archgetsetsaturationmode asm Bl archgetlimitbit asm E ga Startup Code AB 56F80xx init asm E ex User Modules fl bootloader lib c XD bootloader c ER Doc fl bootloader doc B bootloader SIGNALS doc ff bootloader_Settings xml ELE Setup R bootloader ht Rl bootloader ini HS Test fl bad srec checksum S B bad srec type 5 B srec data onlp tst E a srec end only txt a test app odd data S B test_app_smallS 8 test app 550 5 kat lat ha ka hia ba e ha ka ka e Me ha bac Mia ha Me be he e Ma be he e Me he he e Me be be e he ba Figure 1 2 Serial Bootloader D
16. equirements or need of the Licensee or that it conforms to any documentation or that it meets any standards Freescale shall not be responsible to maintain the Software provide upgrades to the Software or provide any field service of the Software Freescale reserves the right to make changes to the Software without further notice to Licensee The Software is not designed intended or authorized for use as components in systems intended for surgical implant into the body or other applications intended to support or sustain life or for any other application in which the failure of the Software could create a situation where personal injury or death may occur Should Licensee purchase or use the Software for any such unintended or unauthorized application Licensee shall indemnify and hold Freescale and its officers employees subsidiaries affiliates and distributors harmless against all claims costs damages and expenses and reasonable attorney fees arising out of directly or indirectly any 56F801x Bootloader User Guide Rev 1 0 2 2 Freescale Semiconductor Preliminary Limited Use License Agreement claim of personal injury or death associated with such unintended or unauthorized use even if such claim alleges that Freescale was negligent regarding the design or manufacture of the Software The term of this Agreement is for as long as Licensee uses the Software for its intended purpose and is not in default of any provisions o
17. evice by choosing the Project Debug command in the CodeWarrior IDE Make sure all hardware has been properly configured before attempting to download the software Bootloader Rev 1 0 Freescale Semiconductor 1 7 Preliminary Serial Bootloader 1 1 8 Execute Once the 56F801x Serial Bootloader has been downloaded the Bootloader will run automatically after a reset has been asserted on the device If the terminal program is properly set up and the EVM and the Host PC are properly connected the terminal program will display the following version number and wait for S record download MC56F801x Serial Bootloader v1 5 Waiting for S record file To load the S Record file using HyperTerminal use the Transfer Send Text File menu option to select the desired S Record file Ifthe download attempt is successful the following message will be displayed Download complete When an error is detected while downloading the S Record file the 56F801x Serial Bootloader displays an error message and waits for the transmission of another S record file The following example of this scenario appears Error 3001 Waiting for S record file Note Consult Troubleshooting Section 1 1 13 for information on decoding error messages 1 1 9 Requirements for a Loaded Program If the application is to be loaded via the Bootloader it must meet the following requirements Application Entry Point The hardware reset vector mus
18. f this Agreement Freescale may terminate this Agreement if Licensee is in default of any of the terms and conditions of this Agreement This Agreement shall be governed by and construed in accordance with the laws of the State of Arizona and can only be modified in a writing signed by both parties Licensee agrees to Jurisdiction and venue in the State of Arizona By using modifying installing compiling or copying the Software Licensee acknowledges that this Agreement has been read and understood and agrees to be bound by its terms and conditions Licensee agrees that this Agreement is the complete and exclusive statement of the agreement between Licensee and Freescale and supersedes any earlier proposal or prior arrangement whether oral or written and any other communications relative to the subject matter of this Agreement License Rev 1 0 Freescale Semiconductor 2 3 Preliminary Limited Use License Agreement 56F801x Bootloader User Guide Rev 1 0 2 4 Freescale Semiconductor Preliminary Appendix A Serial Bootloader Test Application A simple test application is provided for the Serial Bootloader application This application fills the entire Program Flash array with functional code along with a seguential data pattern When executed the application checks for the expected pattern of data in the Program Flash locations not used for storing code If the data pattern verification was successful the application blinks a
19. he application Noisy serial cable Ensure the serial cable is properly connected and or replace it with a new cable ERR FM ACCERR An access error was encountered when programming the Flash On chip Flash Module failure Contact Freescale Technical Support FLAG received and processed ERR FM PVIOL A protection violation was On chip Flash Module Contact Freescale encountered when failure Technical Support programming the Flash ERR FM PROG The Flash program read On chip Flash Module Contact Freescale verify failed for a word in failure Technical Support the Flash array ERR SCI RX An SCI receive error was Noisy serial cable Ensure the serial cable is detected when properly connected and or downloading the S record replace it with a new cable e g noise frame and or receiver overrun Incorrect PC host terminal See Section 1 1 5 for serial program baud rate correct configuration selected PC host terminal serial Do not send break program transmitted characters break character TX XOFF APPLICATION STATUS The ASCII XOF F N A FLAG character 0x13 was sent to the PC terminal to halt transmission RX HEADER APPLICATION STATUS The SO record was N A FLAG received and processed RX EOF APPLICATION STATUS The S7 record was N A Unshaded rows Error Indicators Shaded rows Status Indicators 56F801x Bootloader User Guide Rev 1 0 Freescale Semicond
20. irectory Structure and Files Support This directory contains run time libraries imported when using the Codewarrior tool The contents of this directory can not be modified 56F801x Bootloader User Guide Rev 1 0 Freescale Semiconductor Preliminary Serial Bootloader Generated Code This directory contains source code generated by the Processor Expert PE stationery and beans Files within this directory may be modified if changes are made to project or bean settings It should be noted however that the linker command file smm pROM pRAM cmd has been customized for the Serial Bootloader application and to ensure correct operation of the Bootloader software should not be modified When compiling the Bootloader software do not enable the CPU bean property to build the linker command file as this will result in overwriting the customized file Start up Code This directory contains the start up assembly code 56F80xx init asm responsible for initializing the core registers and internal memory This includes the Operating Mode Register OMR Stack Pointer SP and Hardware Stack HWS as well as the on chip RAM User Modules All files within this directory are customized files not generated by Processor Expert The bootloader c file contains the main function which controls the Serial Bootloader application flow The bootloader lib c file contains various utilities for acheving the functionality required by the Seri
21. l versions of the Bootloader software Instructions for use are embedded within the script itself and can be referenced by executing the script with an h or help option in the command line Please reference the Freescale FAQ website http fagts freescale net to obtain this script see FAQ 25759 It is recommended however that users take advantage of the 1 5 release Version 1 5 of the Bootloader handles the odd S3 data field issue in the Bootloader application It accomplishes this by appending OxFF to the S3 data if the record contains an odd number of data field bytes This fix does not affect the S record checksum calculation To obtain version 1 5 go to Products Digital Signal Processors and Controllers 56800 E 56F8013 Design Tools Software Application Software 56F801x Bootloader 56F801x Bootloader User Guide Rev 1 0 Appendix B 2 Freescale Semiconductor Preliminary INDEX Symbols 56F8000 Peripheral User Manual Preface v Preface vii C Computer Operating Properly COP Preface vii COP Preface vii D Digital Signal Controller DSC Preface vii DSC Preface vii E Evaluation Module EVM Preface vii EVM Preface vii F Flash Module FM Preface vii FM Preface vii Freescale DSP56800E Reference Manual Preface v Preface vii IDE Preface vii Inside CodeWarrior Core Tools Preface v Integrated Development Environment IDE Preface vii P PC Preface vii Personal Computer PC Pref
22. on consumes 838 words approximately 1 64 kB of Program Flash The Serial Bootloader is capable of programming the entire flash array in under 5 seconds in most cases Of course the actual performance will depend on the PC Operating System and serial application used Below are some sample download times for programming the 56F8013 device using HyperTerminal and Tera Term Pro Table 1 3 Sample Download Times for 16KB Memory Serial Application PC Type Windows 2000 Windows XP HyperTerminal Pentium 4 1 7 GHz 4 46 seconds 4 75 seconds Tera Term Pro Pentium 3 1 0 GHz 3 75 seconds 4 29 seconds 1 1 13 Troubleshooting The Serial Bootloader application checks for the following error conditions e SCI Receiver Error e Flash Programming Error Access Error Protection Violation Flash Verify Error Invalid S Record Checksum Invalid S Record Type If any of these errors are encountered the Serial Bootloader application will generate an error message and prompt the user to download the S Record file again The following text illustrates what is seen on the PC host terminal in the event of a download error MC56F801x Serial Bootloader v1 5 Waiting for S record file PROGRAM amp DATA Error 3002 Waiting for S record file In the progress message PROGRAM amp DATA each asterisk indicates a succesfully processed S record This information can can be used with the status code Erro
23. r 3002 to determine whether or not an S record file contains bad data The status code is a 16 bit hexadecimal 56F801x Bootloader User Guide Rev 1 0 1 10 Freescale Semiconductor Preliminary Serial Bootloader number containing a variety of status and error flags controlled by the Serial Bootloader application see Figure 1 6 15 14 13 12 1110 9 8 7 6 5 4 3 2 1 0 RX RX TX ERR ERR ERR ERR ERR ERR EOF HEADER XOFF SCI RX FM PROG FM PVIOL FM ACCERR TYPE CKSUM Figure 1 6 Serial Bootloader Status Code A description of each bit used in the Serial Bootloader status code is provided in Table 1 4 Please consult this table for possible errors and resolutions when troubleshooting the Serial Bootloader application Bootloader Rev 1 0 Freescale Semiconductor 1 11 Preliminary Serial Bootloader Table 1 4 Bootloader Troubleshooting Guide Status Code Description Possible Cause s Solutions was received Only SO S3 and S7 records are supported by the Serial Bootloader application ERR CKSUM The checksum calculated S record file corrupted Regenerate the S record by the Bootloader does not by rebuilding the match the S record application checksum field Noisy serial cable Ensure the serial cable is properly connected and or replace it with a new cable ERR TYPE An invalid S record type S record file corrupted Regenerate the S record by rebuilding t
24. ral Reference Manual MC56F8000RM Inside CodeWarrior Core Tools Freescale Inc Preface Rev 1 0 Freescale Semiconductor Preliminary Conventions This document uses the following notational conventions Typeface Symbol or Term Courier Monospaced Type Meaning Code examples Examples Process command for line flash Italic Directory names project names and contains these core directories applications contains applications software calls functions CodeWarrior project 3des mcp is statements procedures the pConfig argument routines arguments defined in the C header file aec h file names applications variables directives code snippets in text Bold Reference sources refer to the Targeting 56F801x Platform paths manual emphasis see C Program Files Motorola Embedded SDK helpi tutorials Blue Text Linkable on line refer to Chapter 7 License Number Any number is considered a 3V positive value unless 10 preceded by a minus DES symbol to signify a negative value ALL CAPITAL defines define INCLUDE STACK CHECK LETTERS defined constants Brackets Function keys by pressing function key F7 Quotation Returned messages the message Test Passed is displayed marks if unsuccessful for any reason it will return NULL 56F801x Bootloader User Guide Rev 1 0 vi
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27. t be present at the beginning of Program Flash e Initialized Data All variables must be initialized via program code Although it is possible to generate S records that contain data used to initialize RAM this data will be ignored by the Serial Bootloader application Restricted Resources The S record used for download should not contain any data targeted for RAM The Serial Bootloader uses this region of memory to execute code used to erase and program Flash as well as to download and parse S record data If data is needed in RAM it should be loaded into Program Flash and copied into RAM at run time this is handled automatically when using the Processor Expert stationery 1 1 10 S Record Generation Figure 1 5 illustrates how a user s application can be set up within Code Warrior to generate an S Record needed by the Bootloader to program the user s application into the 56F801x device s Flash The options for S Record generation are circled in blue 56F801x Bootloader User Guide Rev 1 0 1 8 Freescale Semiconductor Preliminary Serial Bootloader m smm pROM xRAM Settings C C Preprocessor C C Warnings M56800E Assembler E Code Generation ELF Disassembler M56800E Processor Custom Keywords amp Debugger Debugger Settings Remote Debugging M56800E Target 5 Remote Debug Opt E Processor Expert i Environment options Figure 1 5 S Record Settings in the User Application s Project Settings
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