bdiGDB User Manual
Contents
1. NOP Set Memory Map WCREG 0x0COF 0x10000001 MBAR map internal REGS to 0x10000000 WCREG 0x0008 0x11000001 MMUBAR map MMU registers to 0x11000000 WCREG 0x0C04 0x20000035 RAMBARO map internal SRAM to 0x20000000 WCREG 0x0C05 0x20001035 RAMBARI map internal SRAM to 0x20001000 NOP MMU Map internal registers WTLB 0x10000001 0x10000298 0x10000000 gt 0x10000000 8k NP RW WTLB 0x10002001 0x10020298 0x10002000 gt 0x10002000 8k NP RW WTLB 0x10004001 0x10040298 0x10004000 gt 0x10004000 8k NP RW WTLB 0x10006001 0x10060298 0x10006000 gt 0x10006000 8k NP RW WTLB 0x10008001 0x10080298 0x10008000 gt 0x10008000 8k NP RW WTLB 0x1000A001 0x100A0298 0x1000A000 gt 0x1000A000 8k NP RW WTLB 0x1000C001 0x100C0298 0x1000C000 gt 0x1000C000 8k NP RW WTLB 0x1000E001 0x100E0298 0x1000E000 gt 0x1000E000 8k NP RW NOP MMU Map 32k System RAM to 0x00000000 WTLB 0x00000001 0x1001025C 0x00000000 gt 0x10010000 8k CB RWX WTLB 0x00002001 0x1001225C 0x00002000 gt 0x10012000 8k CB RWX WTLB 0x00004001 0x1001425C 0x00004000 gt 0x10014000 8k CB RWX WTLB 0x00006001 0x1001625C 0x00008000 gt 0x10016000 8k CB RWX WM32 0x11000000 0x00000001 MMUCR enable MMU Copyright 1997 2011 by ABATRON AG Switzerland V 1 13 Lj A for GNU Debugger BDI2000 ColdFire User Manual 24 3 2 2 Part TARGET The part TARGET defines some target specific values CPUTYPE type This valu2. Copies The client is entitled to make copies according to the number of licenses purchased Copies exceeding this number are allowed for storage purposes as a replacement for defective storage mediums Update and Support The agreement includes free software maintenance update and support for one year from date of purchase After this period the client may purchase software maintenance for an additional year 7 3 Warranty and Disclaimer ABATRON AND ITS SUPPLIERS HEREBY DISCLAIMS AND EXCLUDES TO THE EXTENT PERMITTED BY APPLICABLE LAW ALL WARRANTIES EXPRESS OR IMPLIED INCLUDING WITHOUT LIMITATION ANY WARRANTIES OF MERCHANTABILITY FITNESS FORA PARTICULAR PURPOSE TITLE AND NON INFRINGEMENT 7 4 Limitation of Liability IN NO EVENT SHALL ABATRON OR ITS SUPPLIERS BE LIABLE TO YOU FOR ANY DAMAGES INCLUDING WITHOUT LIMITATION ANY SPECIAL INDIRECT INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THE HARDWARE AND OR SOFTWARE INCLUDING WITHOUT LIMITATION LOSS OF PROFITS BUSINESS DATA GOODWILL OR ANTICIPATED SAVINGS EVEN IF ADVISED OF THE POSSIBILITY OF THOSE DAMAGES The hardware and software product with all its parts copyrights and any other rights remain in pos session of ABATRON Any dispute which may arise in connection with the present agreement shall be submitted to Swiss Law in the Court of Zug Switzerland to which both parties hereby assign com petence Copyri
3. When this line is present the BDI catches all unhandled exceptions Catching exceptions is only possible if the vector table is writable Example VECTOR CATCH catch unhandled exception When this line is present a TCP IP channel is routed to the BDI s RS232 connector The port parameter defines the TCP port used for this BDI to host communication You may choose any port except 0 and the default Telnet port 23 On the host open a Telnet session using this port Now you should see the UART output in this Telnet session You can use the normal Telnet connection to the BDI in parallel they work completely in dependent Also input to the UART is implemented port The TCP IP port used for the host communication baudrate The BDI supports 2400 115200 baud Example SIO 7 9600 TCP port for virtual IO This entry in the init list allows to define a delay time in ms the BDI inserts between releasing the RESET line and starting communicating with the target This init list entry may be necessary if RESET is delayed on its way to the processors reset pin If not defined a delay of 1 ms is used time the delay time in milliseconds 10 60 000 Example WAKEUP 3000 insert 3sec wake up time This entry in the init list allows to define the time in ms the BDI asserts the RESET signal If not defined reset is asserted for 1 ms time the reset time in milliseconds 10 60 000 Example RESET 500 assert RESET for 500 ms C
4. AG Switzerland V 1 13 4 AH for GNU Debugger BDI2000 ColdFire User Manual 8 2 2 Connecting the BDI2000 to Power Supply The BDI2000 needs to be supplied with 5 Volts max 1A via the POWER connector The available power supply from Abatron option or the enclosed power cable can be directly connected In order to ensure reliable operation of the BDI2000 keep the power supply cable as short as possible A For error free operation the power supply to the BDI2000 must be between 4 75V and 5 25V DC The maximal tolerable supply voltage is 5 25 VDC Any higher voltage or a wrong polarity might destroy the electronics POWER Connector GND 3 1 Vcc 1 Vcc 5V 3 GROUND The green LED BDI marked light up when 5V power is connected to the BDI2000 Please switch on the system in the following sequence 1 gt external power supply e 2 gt target system Copyright 1997 2011 by ABATRON AG Switzerland V 1 13 4 A for GNU Debugger BDI2000 ColdFire User Manual 9 2 3 Status LED MODE The built in LED indicates the following BDI states MODE LED BDI STATES The BDI is ready for use the firmware is already loaded The power supply for the BDI2000 is 4 75VDC BLINK The BDI loader mode is active an invalid firmware is loaded or loading firmware is active Copyright 1997 2011 by ABATRON AG Switzerland V 1 13 4 LH for GNU Debugger BDI2000 ColdF
5. N Pull out carefully the fuse and replace it Type Microfuse MSF 1 6AF Manufacturer Schurter Reinstallation 5 1 Slide back carefully the print Check that the LEDs align with the holes in the back panel 5 2 Push carefully the front panel and the red elastig sealing on the casing Check that the LEDs align with the holes in the front panel and that the position of the sealing is as shown in the figure below casing Qu elastic sealing front panel back panel 5 3 Mount the screws do not overtighten it 5 4 Mount the two plastic caps that cover the screws 5 5 Plug the cables A ks Observe precautions for handling Electrostatic sensitive device Unplug the cables before opening the cover Use exact fuse replacement Microfuse MSF 1 6 AF Copyright 1997 2011 by ABATRON AG Switzerland V 1 13 L AH for GNU Debugger BDI2000 ColdFire User Manual 45 C Trademarks All trademarks are property of their respective holders Copyright 1997 2011 by ABATRON AG Switzerland V 1 13
6. STRATAX8 STRATAX16 MIRROR MIRRORX8 MIRRORX16 S29M64X8 S29M32X16 AM29DX16 AM29DX32 Example CHIPTYPE AM29F The size of one flash chip in bytes e g AM29F010 0x20000 This value is used to calculate the starting address of the current flash memory bank size the size of one flash chip in bytes Example CHIPSIZE 0x80000 Enter the width of the memory bus that leads to the flash chips Do not en ter the width of the flash chip itself The parameter CHIPTYPE carries the information about the number of data lines connected to one flash chip For example enter 16 if you are using two AM29F 010 to build a 16bit flash memory bank with the width of the flash memory bus in bits 8 16 32 Example BUSWIDTH 16 The default name of the file that is programmed into flash using the Telnet prog command This name is used to access the file via TFTP If the file name starts with a this is replace with the path of the configuration file name This name may be overridden interactively at the Telnet interface filename the filename including the full path or for relative path Example FILE F gnu mcf bootrom hex FILE bootrom hex The format of the file and an optional address offset The optional param eter offset is added to any load address read from the program file format SREC BIN AOUT ELF or COFF Example FORMAT SREC FORMAT ELF 0x10000 If a workspace is defined the BDI uses a faster programming algorithm that run
7. are granted This is the normal working mode The bdiGDB system needs only read access to the configuration and program files The parameter p enables protocol output to the console window Try it The parameter w enables write accesses to the host file system The parameter d allows to define a root directory tftpsrv p Starts the TFTP server and enables protocol output tftpsrv p w Starts the TFTP server enables protocol output and write accesses are allowed tftpsrv dC tftp Starts the TFTP server and allows only access to files in C tftp and its subdirectories As file name use relative names For example bdi mpc750 cfg accesses C tftp bdi mpc750 cfg You may enter the TFTP server into the Startup group so the server is started every time you logon Copyright 1997 2011 by ABATRON AG Switzerland V 1 13 4 AH for GNU Debugger BDI2000 ColdFire User Manual 20 3 Using bdiGDB 3 1 Principle of operation The firmware within the BDI handles the GDB request and accesses the target memory or registers via the BDM interface There is no need for any debug software on the target system After loading the code via TFTP debugging can begin at the very first assembler statement Whenever the BDI system is powered up the following sequence starts initial configuration valid no activate BDI2000 loader Get configuration file via TFTP Reset System and Power OFF Process target i
8. be set before starting the program file This means the program starts at the normal re set address 0x0100 address the address where to start the program file Example START 0x1000 DEBUGPORT port RECONNECT The TCP port GDB uses to access the target If the RECONNECT param eter is present an open TCP IP connection Telnet GDB will be closed if there is a connect request from the same host same IP address port the TCP port number default 2001 Example DEBUGPORT 2001 PROMPT string This entry defines a new Telnet prompt The current prompt can also be changed via the Telnet interface Example PROMPT 5307 gt DUMP filename The default file name used for the Telnet DUMP command filename the filename including the full path Example DUMP dump bin Copyright 1997 2011 by ABATRON AG Switzerland V 1 13 e bd for GNU Debugger BDI2000 ColdFire User Manual 27 3 2 4 Part FLASH The Telnet interface supports programming and erasing of flash memories The bdiGDB system has to know which type of flash is used how the chip s are connected to the CPU and which sectors to erase in case the ERASE command is entered without any parameter CHIPTYPE type CHIPSIZE size BUSWIDTH width FILE filename FORMAT format offset WORKSPACE address This parameter defines the type of flash used It is used to select the cor rect programming algorithm format AM29F AM29BX8 AM29BX16 I28BX8 I28BX16 AT49 AT49X8 AT49X16
9. diskette into this directory Linux only extract the setup tool sources and build the setup tool Use the setup tool to load update the BDI firmware logic Note A new BDI has no firmware logic loaded Use the setup tool to transmit the initial configuration parameters IP address of the BDI IP address of the host with the configuration file Name of the configuration file This file is accessed via TFTP Optional network parameters subnet mask default gateway Activating BOOTP The BDI can get the network configuration and the name of the configuration file also via BOOTP For this simple enter 0 0 0 0 as the BDI s IP address see following chapters If present the subnet mask and the default gateway router is taken from the BOOTP vendor specific field as defined in RFC 1533 With the Linux setup tool simply use the default parameters for the c option root LINUX_1 bdisetup bdisetup c p dev ttySO b57 The MAC address is derived from the serial number as follows MAC 00 0C 01 xx xx xx repace the xx xx xx with the 6 left digits of the serial number Example SN 93123457 gt gt 00 0C 01 93 12 34 Copyright 1997 2011 by ABATRON AG Switzerland V 1 13 e AH for GNU Debugger BDI2000 ColdFire User Manual 13 Important Because some older V2 ColdFire cores MCF5204 MCF5206 e and MCF5272 need synchronous signals at the BDM interface the BDI uses a different logic for this cores Make sure that t
10. special maintenance Clean the housing with a mild detergent only Solvents such as gasoline may damage it If the BDI is connected correctly and it is still not responding then the built in fuse might be damaged in cases where the device was used with wrong supply voltage or wrong polarity To exchange the fuse or to perform special initialization please proceed according to the following steps A ks Observe precautions for handling Electrostatic sensitive device Unplug the cables before opening the cover Use exact fuse replacement Microfuse MSF 1 6 AF 1 1 Unplug the cables jJ pm Ex 2 1 Remove the two plastic caps that cover the screws on target front side e g with a small knife 2 2 Remove the two screws that hold the front panel BDI TRGT MODE BDI MAIN BDI OPTION 3 1 While holding the casing remove the front panel and the red elastig sealing casing N elastic sealing front panel Copyright 1997 2011 by ABATRON AG Switzerland V 1 13 e A for GNU Debugger BDI2000 ColdFire User Manual 44 4 1 While holding the casing slide carefully the print in position as shown in figure below Jumper settings me fom DEFAULT INIT MODE 4 Fuse Position Fuse Position Version B e Version A o v
11. two places First with the BDI configuration file second within the application The setup in the configuration file must at least enable access to the target memory where the application will be loaded Disable the watchdog and setting the CPU clock rate should also be done with the BDI configuration file Application specific initializations like setting the timer rate are best located in the application startup sequence 3 3 2 Connecting to the target As soon as the target comes out of reset BDI initializes it and loads your application code If RUN is selected the application is immediately started otherwise only the target PC is set BDI now waits for GDB request from the debugger running on the host After starting the debugger it must be connected to the remote target This can be done with the fol lowing command at the GDB prompt gdb target remote bdi2000 2001 bdi2000 This stands for an IP address The HOST file must have an appropriate entry You may also use an IP address in the form XXX XXX XXX XXX 2001 This is the TCP port used to communicate with the BDI If not already suspended this stops the execution of application code and the target CPU changes to background debug mode Remember every time the application is suspended the target CPU is freezed During this time no hardware interrupts will be processed Note For convenience the GDB detach command triggers a target reset sequence in the BDI gdb gdb d
12. with one of this algorithm The flash type selects the appropriate algorithm and gives additional information about the used flash For 8bit only flash AM29F MIRROR I28BX8 AT49 For 8 16 bit flash in 8bit mode AM29BX8 MIRRORX8 I28BX8 STRATAX8 AT49X8 For 8 16 bit flash in 16bit mode AM29BX16 MIRRORX16 I28BX16 STRATAX16 AT49X16 For 16bit only flash AM29BX16 I28BX16 AT49X16 For 16 32 bit flash in 16bit mode AM29DX16 For 16 32 bit flash in 32bit mode AM29DX32 Some newer Spansion MirrorBit flashes cannot be programmed with the MIRRORX16 algorithm be cause of the used unlock address offset Use S29M32X16 for these flashes The AMD and AT49 algorithm are almost the same The only difference is that the AT49 algorithm does not check for the AMD status bit 5 Exceeded Timing Limits Only the AMD and AT49 algorithm support chip erase Block erase is only supported with the AT49 algorithm If the algorithm does not support the selected mode sector erase is performed If the chip does not support the selected mode erasing will fail The erase command sequence is different only in the 6th write cycle Depending on the selected mode the following data is written in this cycle see also flash data sheets Ox10 for chip erase 0x30 for sector erase 0x50 for block erase To speed up programming of Intel Strata Flash and AMD MirrorBit Flash an additional algorithm is implemented that makes use of the write buffer This algorithm
13. 0000108 0x00009300 DACRO enable refresh WM32 0x10000110 0x00401300 DACRI base 0x00400000 timing 2 4 2 1 1 CBM 011 WM32 0x10000114 0x007C0001 DCMR1 mask 8MB enable WM32 0x10000110 0x00401308 DACRI Initiate Precharge All Command WM32 0x00400400 0x00000000 Execute PALL command WM32 0x10000110 0x00409300 DACRI enable refresh DELAY 20 Delay for Refresh WM32 0x10000108 0x00009340 DACRO Initiate Mode Register Set Command WM32 0x00000400 0x00000000 Execute MRS command WM32 0x10000110 0x00009340 DACRI Initiate Mode Register Set Command WM32 0x00400400 0x00000000 Execute MRS command TARGET CPUTYPE MCF5307 CPUCLOCK 90000000 the CPU clock rate after processing the init list BREAKMODE SOFT SOFT or HARD VECTOR CATCH catch unhandled exceptions HOST IP 151 120 25 115 FILE E cygnus root usr demo mcf5307 fibo exe FORMAT COFF LOAD MANUAL load code MANUAL or AUTO after reset FLASH WORKSPACE 0x00800000 workspace in target RAM for fast programming algorithm CHIPTYPE AM29F _ Flash type AM29F AM29BX8 AM29BX16 I28BX8 I28BX16 CHIPSIZE 0x80000 The size of one flash chip in bytes e g AM29F010 0x20000 BUSWIDTH 16 The width of the flash memory bus in bits 8 16 32 FILE D abatron bdi360 ColdFire pro sbc5307 sss ERASE OxFFEO00000 erase sector O of flash ERASE OxFFE20000 erase sector 1 of flash REGS DMMI 0x10000000 FILE E cygnus root usr demo mcf5307 reg5307 def Based on the infor
14. 19200 Enable SIO via TCP port 7 at 9600 baud Warning Once SIO is enabled connecting with the setup tool to update the firmware will fail In this case either disable SIO first or disconnect the BDI from the LAN while updating the firmware Copyright 1997 2011 by ABATRON AG Switzerland V 1 13 4 AH for GNU Debugger BDI2000 ColdFire User Manual 37 3 4 Telnet Interface A Telnet server is integrated within the BDI The Telnet channel is used by the BDI to output error messages and other information Also some basic debug commands can be executed Telnet Debug features Display and modify memory locations Display and modify general and special purpose registers e Single step a code sequence e Set hardware breakpoints for code and data accesses Load a code file from any host e Start Stop program execution Programming and Erasing Flash memory During debugging with GDB the Telnet is mainly used to reboot the target generate a hardware re set and reload the application code It may be also useful during the first installation of the bdiGDB system or in case of special debug needs e g setting breakpoints on variable access Multiple commands separated by a semicolon can be entered on one line Copyright 1997 2011 by ABATRON AG Switzerland V 1 13 e A for GNU Debugger BDI2000 ColdFire User Manual Following a list of the available Telnet commands MD lt address gt lt count gt display target memo
15. 41 7 3 Warranty and Disclaimer esaccice mm 41 1 4 Limitation of Liabilty Bet 41 Appendices A TOURS SIO GUNG e 42 Mri 43 C Trademarks e 45 Copyright 1997 2011 by ABATRON AG Switzerland V 1 13 4 AH for GNU Debugger BDI2000 ColdFire User Manual 3 1 Introduction bdiGDB enhances the GNU debugger GDB with Background Debug Mode BDM debugging for ColdFire based targets With the built in Ethernet interface you get a very fast code download speed of up to 150Kbytes sec No target communication channel e g serial line is wasted for debugging purposes Even better you can use fast Ethernet debugging with target systems without network ca pability The host to BDI communication uses the standard GDB remote protocol An additional Telnet interface is available for special debug tasks e g force a hardware reset program flash memory The following figure shows how the BDI2000 interface is connected between the host and the target Target System ColdFire BDM Interface BDI2z000 GNU Debugger GDB Ethernet 10 BASE T 1 1 BDI2000 The BDI2000 is the main part of the bdiGDB system This small box implements the interface be tween the BDM pins of
16. CPU clock is 25 0MHz STARTUP mode runtime This parameter selects the target startup mode The following modes are supported RESET This default mode forces the target to debug mode im mediately out of reset No code is executed after reset STOP In this mode the BDI lets the target execute code for runtime milliseconds after reset This mode is useful when monitor code should initialize the target system RUN After reset the target executes code until stopped by the Telnet halt command Example STARTUP STOP 3000 let the CPU run for 3 seconds Copyright 1997 2011 by ABATRON AG Switzerland V 1 13 4 A for GNU Debugger BDI2000 ColdFire User Manual 25 BREAKMODE mode NOUHE This parameter defines how breakpoints are implemented The cur VECTOR CATCH SIO port baudrate WAKEUP time RESET time rent mode can also be changed via the Telnet interface By default the BDI sets the CSR UHE bit so a halt instruction in user mode will be handled by the BDI If the option NOUHE is present the BDI will not set this bit and a halt in user mode will cause an invalid instruction exception that can be handled by an application debugger resident in the target system SOFT This is the normal mode Breakpoints are implemented by replacing code with a TRAP instruction HARD In this mode the breakpoint hardware is used Only 1 4 breakpoints at a time are supported Example BREAKMODE HARD enable use of break hardware
17. Chip erase does not work for large chips because the BDI time outs after 3 minutes Use block erase wait The wait time in ms is only used for the unlock mode Af ter starting the flash unlock the BDI waits until it pro cesses the next entry Example ERASE Oxff040000 erase sector 4 of flash ERASE Oxff060000 erase sector 6 of flash ERASE Oxff000000 CHIP erase whole chip s ERASE Oxff010000 UNLOCK 100 unlock wait 100ms ERASE Oxff000000 0x10000 7 erase 7 sectors Example for the MCF5307 evaluation board flash memory FLASH WORKSPACE 0x00800000 workspace in target RAM for fast programming algorithm CHIPTYPE AM29F Flash type AM29F AM29BX8 AM29BX16 I28BX8 I28BX16 CHIPSIZE 0x80000 The size of one flash chip in bytes e g AM29F010 0x20000 BUSWIDTH 16 The width of the flash memory bus in bits 8 16 32 FILE D abatron bdi360 ColdFire pro sbc5307 sss ERASE OxFFEO00000 erase sector 0 of flash ERASE OxFFE20000 erase sector 1 of flash ERASE OxFFE40000 erase sector 1 of flash ERASE OxFFE60000 erase sector 1 of flash the above erase list maybe replaces with ERASE OxFFEO00000 0x20000 4 erase 4 sectors Copyright 1997 2011 by ABATRON AG Switzerland V 1 13 e AH for GNU Debugger BDI2000 ColdFire User Manual 29 Supported Flash Memories There are currently 3 standard flash algorithm supported The AMD Intel and Atmel AT49 algorithm Almost all currently available flash memories can be programmed
18. DTH 32 The width of the flash memory bus in bits 8 16 32 FILE E cygwin home bdidemo coldfire evb5282_cmf bin FORMAT BIN 0x44000000 ERASE 0x44000000 MASS ERASE 0x44040000 MASS Before you can erase program the CFM the CFM Clock Divider needs to be setup via an init list en try Check the MCF52xxx user s manual about how to setup the CFMCLKD WMS 0x401D0002 0x54 CFMCLKED Flash clock divider for G4MHz Copyright 1997 2011 by ABATRON AG Switzerland V 1 13 4 AH for GNU Debugger BDI2000 ColdFire User Manual 32 3 2 5 Part REGS In order to make it easier to access target registers via the Telnet interface the BDI can read in a register definition file In this file the user defines a name for the register and how the BDI should access it e g as memory mapped memory mapped with offset The name of the register defi nition file and information for different registers type has to be defined in the configuration file The register name type address offset number and size are defined in a separate register definition file This way you can create one register definition file for the MCF5307 that can be used for all pos sible positions of the internal memory map You only have to change one entry in the configuration file An entry in the register definition file has the following syntax name type addr size name The name of the register max 12 characters type The register type DREG Data register AREG Add
19. above mentioned equipment meets the requirements for emission and immunity according to EMC Directive 89 336 EEC The evaluation procedure of conformity was assured according to the following standards EN 50081 2 EN 50082 2 This declaration of conformity is based on the test report no QNL E853 05 8 a of QUINEL Zug accredited according to EN 45001 Manufacturer ABATRON AG St ckenstrasse 4 CH 6221 Rickenbach Authority IC EY uu Max Vock Ruedi Dummermuth Marketing Director Technical Director Rickenbach May 30 1998 Copyright 1997 2011 by ABATRON AG Switzerland User Manual V 1 13 40 e A for GNU Debugger BDI2000 ColdFire User Manual 41 7 Abatron Warranty and Support Terms 7 1 Hardware ABATRON Switzerland warrants that the Hardware shall be free from defects in material and work manship for a period of 3 years following the date of purchase when used under normal conditions Failure in handling which leads to defects or any self made repair attempts are not covered under this warranty In the event of notification within the warranty period of defects in material or workman ship ABATRON will repair or replace the defective hardware The customer must contact the distrib utor or Abatron for a RMA number prior to returning 7 2 Software License Against payment of a license fee the client receives a usage license for this software product which is not exclusive and cannot be transferred
20. ae eC rne Era En Fecerat reda 19 2 7 TFTP server for Windows NT ETC c ER 19 NUTUS cnm nani ye Pe Oe RP Pp DER S 20 3 1 Principle of operatio mem Nai 20 3 2 Configuration PIG pacecepacisa 22 CANMIT ud gum crm 22 3 2 2 Pan TARGET er T T M Em 24 3 2 3 U dis P clue rr 26 2 20 Par FLASH kdir iiaa tuns aaia EE cuna Aiae AEDE mpm E E EE 27 9 2 5 Parn REGS eierniie OLD OEIL 32 3 3 Debugging with GDB femme me c 34 3 3 1 Target Setup cacao is om scndectieekedes 34 3 3 2 Connecting to the PANG MM 34 3 3 3 Breakpoint Handling oie cick ccnedssheccnctehetncnedenctteceadacnstastleeeicnendsivessshcnetacrendedencetedesdonekiael 35 3 3 4 GDB monitor COMMA T E 35 3 3 5 Target serial l O via BDI toten ineesawniscecsaademscntenbeetneecais xenon Pau Fu DER epu NEM RE 36 SX EE dhacgo e 37 LE ui 39 5 Environmental Doll GB ccr Fu lada n HEEURASEXEE SEE PE2DUM ANKE E URURDIAMEASEK SK CHUADNAKM EFE ER RUNI RES 40 6 Declaration of Conformity GE iiscauucc suu ccacsesa cas antt inna tu c pda enne caupo ananas d RaH Eni MAR RER ERAN Ra EIE 40 7 Abatron Warranty and Support Terms eeeseeeeeeeeeseeeen ener nnn nnnn nnn nnns 41 7 1 Se I MM 41 pex
21. breakpoint hardware as soon as TDR is written to with a value that is not zero This way the debugger or the user via Telnet has full access to all features of this watchpoint breakpoint hardware Clearing TDR gives control back to the BDI 3 3 4 GDB monitor command The BDI supports the GDB V5 x monitor command Telnet commands are executed and the Telnet output is returned to GDB gdb target remote bdi2000 2001 Remote debugging using bdi2000 2001 Ox10D2 in start gdb mon break Breakpoint mode is SOFT gdb mon break hard gdb mon break Breakpoint mode is HARD gdb Copyright 1997 2011 by ABATRON AG Switzerland V 1 13 4 AH for GNU Debugger BDI2000 ColdFire User Manual 36 3 3 5 Target serial I O via BDI A RS232 port of the target can be connected to the RS232 port of the BDI2000 This way it is possible to access the target s serial I O via a TCP IP channel For example you can connect a Telnet session to the appropriate BDI2000 port Connecting GDB to a GDB server stub running on the target should also be possible Target System RS232 Connector co ColdFire 1 CD 2 RXD 3 TXD 4 DTR GROUND g PEE E BDl20oo 7 RTS 8 CTS 9 RI XXX BDI Output A EE Ethernet 10 BASE T The configuration parameter SIO is used to enable this serial I O routing The BDI asserts RTS and DTR when a TCP connection is established TARGET SIO 7
22. d logic version will be displayed Update This button is only active if there is a newer firmware or logic version pres ent in the execution directory of the bdiGDB setup software Press this but ton to write the new firmware and or logic into the BDI2000 flash memory programmable logic Copyright 1997 2011 by ABATRON AG Switzerland V 1 13 Lj A for GNU Debugger BDI2000 ColdFire User Manual 17 Synch BDI IP Address Subnet Mask Default Gateway Config Host IP Address Configuration file Transmit Because some older V2 ColdFire cores e g MCF5272 need synchro nous signals at the BDM interface the BDI uses a different logic for this cores Check this box only if your target is a MCF5204 MCF5206 MCF5206e or MCF5272 The BDI automatically selects the correct JEDEC file Make sure that there is the correct logic loaded for the target CPU you are using Enter the IP address for the BDI2000 Use the following format XXX XXX XXX xXxx e g 151 120 25 101 Ask your network administrator for assigning an IP address to this BDI2000 Every BDI2000 in your network needs a different IP address Enter the subnet mask of the network where the BDI is connected to Use the following format xxx Xxx xxx xxxe g 255 255 255 0 A subnet mask of 255 255 255 255 disables the gateway feature Ask your network administrator for the correct subnet mask Enter the IP address of the default gateway Ask your network administra tor f
23. e gives the BDI information about the connected CPU type MCF5202 MCF5203 MCF5204 MCF5206 MCF5272 MCF5207 MCF5208 MCF5214 MCF5216 MCF5249 SCF5250 MCF5251 MCF5253 MCF5230 MCF5232 MCF5233 MCF5234 MCF5235 MCF5270 MCF5271 MCF5274 MCF5275 MCF5280 MCF5281 MCF5282 MCF5210 MCF5211 MCF5212 MCF5213 MCF5221 MCF5222 MCF5223 MCF5225 MCF5227 MCF5307 MCF5301 MCF5327 MCF5328 MCF5329 MCF5372 MCF5373 MCF5407 MCF5470 MCF5480 MCF5444 MCF5445 Example CPUTYPE MCF5282 BDIMODE mode param This parameter selects the BDI debugging mode The following modes are supported LOADONLY Loads and starts the application core No debugging via BDM AGENT The debug agent runs within the BDI There is no need for any debug software on the target This mode accepts a second parameter If RUN is entered as a second pa rameter the loaded application will be started immedi ately otherwise only the PC is set and BDI waits for GDB requests Example BDIMODE AGENT RUN CPUCLOCK value The BDI needs to know how fast the target CPU runs after processing the init list The BDM communication speed is selected based on this value If this value defines a clock rate that is higher than the real clock BDM com munication may fail When defining a clock rate slower than possible BDM communication still works but not as fast as possible For V3 V4 cores enter the PSTCLK value value the CPU PSTCLK clock in hertz Example CPUCLOCK 25000000
24. e setup tool The setup tool is delivered only as source files This allows to build the tool on any Linux Unix host To build the tool simply start the make utility root LINUX_1 bdisetup make cc 02 c o bdisetup o bdisetup c cc 02 c o bdicnf o bdicnf c cc O2 c o bdidll o bdidll c cc s bdisetup o bdicnf o bdidll o o bdisetup 2 Check the serial connection to the BDI With bdisetup v you may check the serial connection to the BDI The BDI will respond with infor mation about the current loaded firmware and network configuration Note Login as root otherwise you probably have no access to the serial port root LINUX 1 bdisetup bdisetup v p dev ttySO b57 BDI Type BDI2000 Rev C SN 92152150 Loader V1 05 Firmware unknown Logic unknown MAC ff ff ff ff ff ff IP Addr 255 255 255 255 Subnet 255 255 255 255 Gateway 255 255 255 255 Host IP 255 255 255 255 3 Load Update the BDI firmware logic With bdisetup u the firmware is loaded and the CPLD within the BDI2000 is programmed This con figures the BDI for the target you are using Based on the parameters a and t the tool selects the correct firmware logic files If the firmware logic files are in the same directory as the setup tool there is no need to enter a d parameter root LINUX 1 bdisetup cp cf3jed21 103 mcfjed21 103 root LINUX 1 bdisetup bdisetup u p dev ttySO b57 aGDB tMCF Connecting to BDI loade
25. etach Wait until BDI has resetet the target and reloaded the image gdb target remote bdi2000 2001 Copyright 1997 2011 by ABATRON AG Switzerland V 1 13 4 AH for GNU Debugger BDI2000 ColdFire User Manual 35 3 3 3 Breakpoint Handling GDB versions before V5 0 GDB inserts breakpoints by replacing code via simple memory read write commands There is no command like Set Breakpoint defined in the GDB remote protocol When breakpoint mode HARD is selected the BDI checks the memory write commands for such hidden Set Breakpoint actions If such a write is detected the write is not performed and the BDI sets an appropriate hardware break point The BDI assumes that this is a Set Breakpoint action when memory write length is 2 bytes and the pattern to write is a trap instruction OXAE4 GDB version V5 x GDB version 5 x uses the Z packet to set breakpoints watchpoints For software breakpoints the BDI replaces code with a HALT instruction When breakpoint mode HARD is selected the BDI sets an appropriate hardware breakpoint User controlled hardware breakpoints The ColdFire has a special watchpoint breakpoint hardware integrated Normally the BDI controls this hardware in response to Telnet commands Bl BDx or when breakpoint mode HARD is select ed Via the Telnet commands BI and BDx you cannot access all the features of the breakpoint hard ware Therefore the BDI assumes that the user will control setup this
26. ght 1997 2011 by ABATRON AG Switzerland V 1 13 bhi for GNU Debugger BDI2000 ColdFire User Manual 42 Appendices A Troubleshooting Problem The firmware can not be loaded Possible reasons The BDI is not correctly connected with the target system see chapter 2 The power supply of the target system is switched off or not in operating range 4 75 VDC 5 25 VDC MODE LED is OFF or RED The built in fuse is damaged gt MODE LED is OFF The BDI is not correctly connected with the Host see chapter 2 A wrong communication port Com 1 Com 4 is selected Problem No working with the target system loading firmware is ok Possible reasons Wrong pin assignment BDM JTAG connector of the target system see chapter 2 Target system initialization is not correctly gt enter an appropriate target initialization list An incorrect IP address was entered BDI2000 configuration e BDM JTAG signals from the target system are not correctly short circuit break The target system is damaged Problem Network processes do not function loading the firmware was successful Possible reasons The BDI2000 is not connected or not correctly connected to the network LAN cable or media converter An incorrect IP address was entered BDI2000 configuration Copyright 1997 2011 by ABATRON AG Switzerland V 1 13 4 A for GNU Debugger BDI2000 ColdFire User Manual 43 B Maintenance The BDI needs no
27. here is the correct logic loaded for the target CPU you are using With the Windows setup tool you can check a switch to select the correct logic file The Linux Unix setup tool looks for a file with the name mcfjed2x xxx Therefore copy first the correct logic file before updating the firmware logic For MCF5204 MCF5206 e MCF5272 select the V2 logic file check the Sync switch Linux Unix only Before you can update the firmware logic of the BDI copy the correct JEDEC file to mcfjed2x xxx 5204 5206 e 5272 cf2jed20 102 gt mcfjed20 102 cf2jed21 102 gt mcfjed21 102 All other cores cf3jed20 102 gt mcfjed20 102 cf3jed21 102 gt mcfjed21 102 Copyright 1997 2011 by ABATRON AG Switzerland V 1 13 Lj A for GNU Debugger BDI2000 ColdFire User Manual 14 2 5 1 Configuration with a Linux Unix host The firmware logic update and the initial configuration of the BDI2000 is done with a command line utility In the ZIP Archive bdisetup zip are all sources to build this utility More information about this utility can be found at the top in the bdisetup c source file There is also a make file included Starting the tool without any parameter displays information about the syntax and parameters A To avoid data line conflicts the BDI2000 must be disconnected from the target system while programming the logic for an other target CPU see Chapter 2 1 1 Following the steps to bring up a new BDI2000 1 Build th
28. in and waituntilthe c INIT MODE LED MODE blinks fast E e Turn the power supply OFF again Ed DEFAULT Return the jumper to the DEFAULT position Reassemble the unit as described in Appendix Maintenance Copyright 1997 2011 by ABATRON AG Switzerland V 1 13 4 A for GNU Debugger BDI2000 ColdFire User Manual 19 2 6 Testing the BDI2000 to host connection After the initial setup is done you can test the communication between the host and the BDI2000 There is no need for a target configuration file and no TFTP server is needed on the host e f not already done connect the bdiGDB system to the network Power up the BDI2000 Start a Telnet client on the host and connect to the BDI2000 the IP address you entered dur ing initial configuration e If everything is okay a sign on message like BDI Debugger for ColdFire and a list of the available commands should be displayed in the Telnet window 2 7 TFTP server for Windows NT The bdiGDB system uses TFTP to access the configuration file and to load the application program Because there is no TFTP server bundled with Windows NT Abatron provides a TFTP server appli cation tftpsrv exe This WIN32 console application runs as normal user application not as a system service Command line syntax tftpsrv p w dRootDirectory Without any parameter the server starts in read only mode This means only read access request from the client
29. ink is successful between the UTP port of the BDI2000 and the hub to which it is connected TX Transmit When this LED light BLINKS data is being transmitted through the UTP port of the BDI2000 RX Receive When this LED light BLINKS data is being received through the UTP port of the BDI2000 Copyright 1997 2011 by ABATRON AG Switzerland V 1 13 e A for GNU Debugger BDI2000 ColdFire User Manual 12 2 5 Installation of the Configuration Software On the enclosed diskette you will find the BDI configuration software and the firmware required for the BDI2000 For Windows users there is also a TFTP server included The following files are on the diskette b20mcfgd exe b20mcfgd hlp b20mcfgd xxx cf2jed20 xxx cf2jed21 xxx cf3jed20 xxx cf3jed21 xxx tftpsrv exe cfg def bdisetup zip Configuration program Windows application Windows help file for the configuration program Firmware for the BDI2000 JEDEC file for the BDI Rev B logic device for old V2 cores JEDEC file for the BDI Rev C logic device for old V2 cores JEDEC file for the BDI Rev B logic device JEDEC file for the BDI Rev C logic device TFTP server for Windows WIN32 console application Sample configuration files Register definition files ZIP Archive with the Setup Tool sources for Linux UNIX hosts Overview of an installation configuration process Create a new directory on your hard disk Copy the entire contents of the enclosed
30. ire User Manual 10 2 4 Connecting the BDI2000 to Host 2 4 1 Serial line communication Serial line communication is only used for the initial configuration of the bdiGDB system The host is connected to the BDI through the serial interface COM1 COM4 The communication cable included between BDI and Host is a serial cable There is the same connector pinout for the BDI and for the Host side Refer to Figure below Target System ColdFire 5 GROUND l BDI2000 RS232 Connector for PC host 2 RXD data from host 3 TXD data to host Host RS232 Copyright 1997 2011 by ABATRON AG Switzerland V 1 13 Lj A for GNU Debugger BDI2000 ColdFire User Manual 11 2 4 2 Ethernet communication The BDI2000 has a built in 10 BASE T Ethernet interface see figure below Connect an UTP Un shilded Twisted Pair cable to the BD2000 For thin Ethernet coaxial networks you can connect a commercially available media converter BNC gt 10 BASE T between your network and the BDI2000 Contact your network administrator if you have questions about the network Target System 10 BASE T Connector 1 TD 2 TD 3 RD LI TX RX 10 BASE T 6 RD BDI2000 PC Unix Host Ethernet 10 BASE T C The following explains the meanings of the built in LED lights LED Name Description LI Link When this LED light is ON data l
31. ldi BDM debug interface for GNU Debugger Cokdfire User Manual Manual Version 1 13 for BDI2000 abatron 1997 2011 by Abatron AG 4 AH for GNU Debugger BDI2000 ColdFire User Manual 2 1 introduction P M 3 11 BDI2000 UR 3 1 2 SG AON MR RR m UU TT 4 E ICLiIm 5 2 1 Connecting the BDI2000 to Target ione re Mi pietre E CER qu rei oan a Pod nud c lsia 5 2 1 1 Changing Target Processor Type cccceeeeseeceeeeeseeeeeeeaaeeeeeaaeeeeeeaeeseteeneeeeeeeeaaaeees 7 2 2 Connecting the BDI2000 to Power Supply esesseeseeeeneeeeeeeeeennneee nennen 8 2 3 DCUINZRMES ell 9 24 Connecting the BDI2900 to HOS iiir dte bobine eaae UID Rb UR Eu Eia 10 2 4 1 Serial line communication eeseseesseesesesseseeenenenee nennen nenne 10 242 Ethernet COMMUNICATION quoa ttu tops eepu era cedi RE EUR E c Rt EUN DUM I MER ONE INED E 11 2 5 Installation of the Configuration Software sssseseeeeeeeenm enne 12 2 5 1 Configuration with a Linux Unix MOST iai cento ttd n heit a ts re bes etu la ian ve 14 2 5 2 Configuration with a Windows host sssssseeeeeeneemmeeenneenennnee nnne 16 2 5 3 Recover NOC ONS c M 18 2 6 Testing ihe BDI2000 to host COFInBDIOD iie oeoco rtr saadiedseentcenssni
32. ly copy the configuration file to this directory and the use the file name without any path For more information about TFTP use man tftpd root GLINUX 1 bdisetup bdisetup c p dev ttySO b57 gt 1151 120 25 101 V gt h151 120 25 118 V gt fmcf5307 cnf Connecting to BDI loader Writing network configuration Writing init list and mode Configuration passed 5 Check configuration and exit loader mode The BDI is in loader mode when there is no valid firmware loaded or you connect to it with the setup tool While in loader mode the Mode LED is flashing The BDI will not respond to network requests while in loader mode To exit loader mode the bdisetup v s can be used You may also power off the BDI wait some time 1min and power on it again to exit loader mode root LINUX 1 bdisetup bdisetup v p dev ttySO b57 s BDI Type BDI2000 Rev C SN 92152150 Loader V1 05 Firmware V1 00 bdiGDB for ColdFire Logic V1 03 ColdFire MAC 00 0c 01 92 15 21 IP Addr 151 120 25 101 Subnet 255 255 255 255 Gateway 255 255 255 255 Host IP 151 120 25 118 Config mcf5307 cnf The Mode LED should go off and you can try to connect to the BDI via Telnet root LINUX 1 bdisetup telnet 151 120 25 101 Copyright 1997 2011 by ABATRON AG Switzerland V 1 13 ldi 2 5 2 Configuration with a Windows host for GNU Debugger BDI2000 ColdFire User Manual 16 First make sure that the BDI is p
33. mation in the configuration file the target is automatically initialized after every re set Copyright 1997 2011 by ABATRON AG Switzerland V 1 13 4 A for GNU Debugger BDI2000 ColdFire User Manual 5 2 Installation 2 1 Connecting the BDI2000 to Target The enclosed cable to the target system is designed for the Motorola recommended 26 pin Berg con nector In case where the target system has an appropriate connector the cable can be directly con nected The pin assignment is in accordance with the Motorola specification A In order to ensure reliable operation of the BDI EMC runtimes etc the target cable length must not exceed 20 cm 8 Target System Yellow Mark Pin1 Target Connector LLLLLLLLL 25 ColdFire BBH 3x 1 2 BKPT q Ra Made ot Eola EIA 5 GROUND 2 26 eere TEE 7 RESET 8 DSI 9 Vccio 10 DSO A TARGET B 15 s 83 9 UEUEUS EUECEUES e ee2 0 e0e090 16 2 24 CLK CPU The green LED TRGT marked light up when target is powered up 26 TE only needed for V2 cores see note The target CPU clock is only needed for older V2 cores MCF5204 MCF5206 e and MCF5272 be cause DSCLK and DSI have to change synchronous with the CPU clock For all other cores BDM communication can be asynchronous to the CPU clock and therefore this signal is not needed A Important note for olde
34. needs a workspace otherwise the standard Intel AMD algorithm is used The following table shows some examples Am29F010 AM29F 0x020000 Am29F800B AM29BX8 AM29BX16 0x100000 Am29DL323C AM29BX8 AM29BX16 0x400000 Am29PDL128G AM29DX16 AM29DX32 0x01000000 Intel 28F032B3 128BX8 0x400000 Intel 28F640J3A STRATAX8 STRATAX16 0x800000 Intel 28F320C3 I28BX16 0x400000 AT49BV040 AT49 0x080000 AT49BV1614 AT49X8 AT49X16 0x200000 M58BW016BT M58X32 0x200000 SST39VF160 AT49X16 0x200000 Am29LV320M MIRRORX8 MIRRORX16 0x400000 Copyright 1997 2011 by ABATRON AG Switzerland V 1 13 o bhi for GNU Debugger BDI2000 ColdFire User Manual 30 Note Some Intel flash chips e g 28F800C3 28F160C3 28F320C3 power up with all blocks in locked state In order to erase program those flash chips use the init list to unlock the appropriate blocks WMI6 OxFFF00000 0x0060 unlock block 0 WMI6 OxFFF00000 0x00DO WMI6 OxFFF10000 0x0060 unlock block 1 WMI6 OxFFF10000 0x00DO WMI6 OxFFF00000 OxFFFF select read mode or use the Telnet unlock command UNLOCK lt addr gt lt delay gt addr This is the address of the sector block to unlock delay A delay time in milliseconds the BDI waits after sending the unlock com mand to the flash For example clearing all lock bits of an Intel J3 Strata flash takes up to 0 7 seconds If unlock is used without any parameter all sector
35. nit list Process GDB requests Process Telnet commands Power OFF Copyright 1997 2011 by ABATRON AG Switzerland V 1 13 e A for GNU Debugger BDI2000 ColdFire User Manual 21 Breakpoints There are two breakpoint modes supported One of them SOFT is implemented by replacing appli cation code with a HALT instruction The other HARD uses the built in breakpoint logic If HARD is used only up to 1 4 for V4 cores breakpoints can be active at the same time The following example selects SOFT as the breakpoint mode BREAKMODE SOFT lt AGENT gt SOFT or HARD HARD uses hardware breakpoints All the time the application is suspended i e caused by a breakpoint the target processor remains freezed Target Exceptions If enabled the BDI will catch all unhandled exceptions This is only possible if the vector table is writ able At vector 0 the BDI writes a HALT RTE instruction sequence and lets all other vectors point to this short exception handler The BDI reads back the VBR after processing the initilaisation list in or der to get the base address of the vector table INIT WCREG 0x801 0x00000000 set vector base TARGET VECTORCATCH enable vector catching Copyright 1997 2011 by ABATRON AG Switzerland V 1 13 e A for GNU Debugger BDI2000 ColdFire User Manual 22 3 2 Configuration File The configuration file is automatically read by the BDI after every power on The s
36. o the individual offset of the register addr the address of the Control register mask the mask applied to the control register value before it is used as base address Example CMM2 0x008 OxFFFF0000 MMUBAR Note The following register names are already predefined dO d7 a0 a7 fp sp vbr sr pc cacr acrO acr1 rambar rombar mbar Example for a register definition MCF5485 Entry in the configuration file REGS CMMI 0xCOF Oxfffc0000 MBAR CMM2 0x008 Oxffff0000 MMUBAR FILE reg5485 def The register definition file name type addr size Additional Control Register cacr CREG 0x002 32 asid CREG 0x003 32 acrO CREG 0x004 32 CMM2 must point to MMUBAR mmucr CMM2 0x000 32 mmuor CMM2 0x004 32 CMMI must point to MBAR System Integration Unit SIU sdramds 1 CMM1 0x004 32 sbcr CMM1 0x010 32 csOcfg01 CMMI 0x020 32 Now the defined registers can be accessed by name via the Telnet interface BDI gt rd mmucr BDI gt rm csar0 OxFFEO Copyright 1997 2011 by ABATRON AG Switzerland V 1 13 4 A for GNU Debugger BDI2000 ColdFire User Manual 34 3 3 Debugging with GDB Because the target agent runs within BDI no debug support has to be linked to your application There is also no need for any BDI specific changes in the application sources Your application must be fully linked because no dynamic loading is supported 3 3 1 Target setup Target initialization may be done at
37. oint 16bit access BDB RIW lt addr gt set data watchpoint 8bit access CD lt id gt clear data breakpoint s INFO display information about the current state LOAD offset lt file gt lt format gt load program file to target memory VERIFY lt offset gt lt file gt format verify a program file to target memory PROG lt offset gt lt file gt lt format gt program flash memory E format SREC or BIN or AOUT or ELF ERASE lt address gt lt mode gt erase a flash memory sector chip or block x mode CHIP BLOCK or SECTOR default is sector ERASE lt addr gt step count erase multiple flash sectors UNLOCK addr lt delay gt unlock a flash sector UNLOCK lt addr gt step count unlock multiple flash sectors DELAY ms delay for a number of milliseconds HOST ip change IP address of program file host PROMPT string defines a new prompt string CONFIG display or update BDI configuration CONFIG file lt hostIP gt bdiIP lt gateway gt lt mask gt HELP display command list BOOT loader reboot the BDI and reload the configuration QUIT terminate the Telnet session Note 38 The Telnet command RESET does only reset the target system The configuration file is not loaded again If the configuration file has changed use the Telnet command BOOT to reload it Note The DUMP command
38. optional Active low open drain signal used to abort a bus cycle This signal may be helpful for ColdFire devices which has no built in bus monitor e g MCF5307 The BDI is able to terminate an invalid memory access Otherwise BDM communication may hang until a reset is applied lt reseved gt GROUND System Ground RESET Active low open drain signal used to force a system reset CLK_CPU PROCESSOR CLOCK For some cores this clock signal is used to synchonize the BDM signals DSCLK and DSI wo lt reseved gt a oO CO o GROUND System Ground Pin 14 is only use for some older V2 cores MCF5204 MCF5206 e and MCF5272 For all other cores this signal is not used Copyright 1997 2011 by ABATRON AG Switzerland V 1 13 e A for GNU Debugger BDI2000 ColdFire User Manual 7 2 1 1 Changing Target Processor Type Before you can use the BDI2000 with an other target processor type e g ColdFire lt gt PPC a new setup has to be done see chapter 2 5 During this process the target cable must be disconnected from the target system The BDI2000 needs to be supplied with 5 Volts via the BDI OPTION connec tor Version A or via the POWER connector Version B For more information see chapter 2 2 1 External Power Supply To avoid data line conflicts the BDI2000 must be disconnected from the target system while programming the logic for an other target CPU Copyright 1997 2011 by ABATRON
39. opyright 1997 2011 by ABATRON AG Switzerland V 1 13 4 AH for GNU Debugger BDI2000 ColdFire User Manual 26 3 2 3 Part HOST The part HOST defines some host specific values IP ipaddress The IP address of the host ipaddress the IP address in the form XXX XXX XXX XXX Example IP 151 120 25 100 FILE filename The default name of the file that is loaded into RAM using the Telnet load command This name is used to access the file via TFTP If the filename starts with a this is replace with the path of the configuration file name filename the filename including the full path or for relative path Example FILE F gnu demo mcfitest elf FILE test elf FORMAT format offset The format of the program file and an optional load address offset Cur rently binary S record a out ELF and COFF formats are supported If the code is already stored in ROM on the target select ROM as the format The optional parameter offset is added to any load address read from the image file format BIN SREC AOUT ELF COFF or ROM Example FORMAT COFF FORMAT COFF 0x10000 LOAD mode In Agent mode this parameters defines if the code is loaded automatically after every reset mode AUTO MANUAL Example LOAD MANUAL START address The address where to start the program file If this value is not defined and the core is not in ROM the address is taken from the code file If this value is not defined and the core is already in ROM the PC will not
40. or the correct gateway IP address If the gateway feature is disabled you may enter 255 255 255 255 or any other value Enter the IP address of the host with the configuration file The configura tion file is automatically read by the BDI2000 after every start up Enter the full path and name of the configuration file e g D gnu config bdi ads860bdi cnf For information about the syntax of the configuration file see the bdiGDB User manual This name is transmitted to the TFTP server when reading the configuration file Click on this button to store the configuration in the BDI2000 flash memory Copyright 1997 2011 by ABATRON AG Switzerland V 1 13 4 A for GNU Debugger BDI2000 ColdFire User Manual 18 2 5 3 Recover procedure In rare instances you may not be able to load the firmware in spite of a correctly connected BDI error of the previous firmware in the flash memory Before carrying out the following procedure check the possibilities in Appendix Troubleshooting In case you do not have any success with the tips there do the following Switch OFF the power supply for the BDI and open the unit as described in Appendix Maintenance Place the jumper in the INIT MODE position Connect the power cable or target cable if the BDI is powered from target system SEIL i li ma e Switch ON the power supply for the BDI aga
41. r Erasing CPLD Programming firmware with b20mcfegd 100 Programming CPLD with mcfjed21 103 Copyright 1997 2011 by ABATRON AG Switzerland V 1 13 e AH for GNU Debugger BDI2000 ColdFire User Manual 15 4 Transmit the initial configuration parameters With bdisetup c the configuration parameters are written to the flash memory within the BDI The following parameters are used to configure the BDI BDI IP Address The IP address for the BDI2000 Ask your network administrator for as signing an IP address to this BDI2000 Every BDI2000 in your network needs a different IP address Subnet Mask The subnet mask of the network where the BDI is connected to A subnet mask of 255 255 255 255 disables the gateway feature Ask your network administrator for the correct subnet mask If the BDI and the host are in the same subnet it is not necessary to enter a subnet mask Default Gateway Enter the IP address of the default gateway Ask your network administra tor for the correct gateway IP address If the gateway feature is disabled you may enter 255 255 255 255 or any other value Config Host IP Address Enter the IP address of the host with the configuration file The configura tion file is automatically read by the BDI2000 after every start up Configuration file Enter the full path and name of the configuration file This file is read via TFTP Keep in mind that TFTP has it s own root directory usual tftpboot You can simp
42. r target cables The target cables delivered before October 2004 expect the target BDM reference voltage Vccio at pin 25 of the BDM connector For target boards where Vccio is only routed to pin 9 remove the con tact wire from housing pin 25 and insert it into pin 9 Copyright 1997 2011 by ABATRON AG Switzerland V 1 13 4 AH for GNU Debugger BDI2000 ColdFire User Manual 6 BDI TARGET B Connector Signals DATA SERIAL OUT For background debug mode serial data output from the MCU lt reseved gt DATA SERIAL IN For background debug mode serial data input signal to the MCU lt reseved gt lt reseved gt 2 Vccio Target 1 8 5 0V This is the target reference voltage It indicates that the target has power and it is also used to create the logic level reference for the input comparators It also controls the output logic levels to the target It is normally fed from Vcc I O on the target board 3 0 5 0V with Rev B This input to the BDI2000 is used to detect if the target is powered up If there is a current limiting resistor between this pin and the target Vdd it should be 100 Ohm or less DEVELOPMENT SERIAL CLOCK For background debug mode serial shift clock to the MCU BREAKPOINT BKPT is an active low signal that signals a hardware breakpoint for the ColdFire core It is used to force the ColdFire core to enter debug mode TEA TRANSFER ERROR ACKNOWLEDGE currently not implemented
43. ress register CREG Control register MM Absolute direct memory mapped register DMM1 DMMA Relative direct memory mapped register IMM1 IMM4 Indirect memory mapped register CMM1 CMM4_ Control register based memory mapped register addr The address offset or number of the register size The size 8 16 32 of the register The following entries are supported in the REGS part of the configuration file FILE filename The name of the register definition file This name is used to access the file via TFTP The file is loaded once during BDI startup filename the filename including the full path Example FILE C bdi regs mcf5485 def DMMn base This defines the base address of direct memory mapped registers This base address is added to the individual offset of the register base the base address Example DMM 1 0x01000 IMMn addr data This defines the addresses of the memory mapped address and data reg isters of indirect memory mapped registers The address of a IMMn regis ter is first written to addr and then the register value is access using data as address addr the address of the Address register data the address of the Data register Example DMM 1 0x02200000 Copyright 1997 2011 by ABATRON AG Switzerland V 1 13 4 AH for GNU Debugger BDI2000 ColdFire User Manual 33 CMMn addr mask This defines the control register that holds the base address of control reg ister based memory mapped registers The base address is added t
44. ress the memory address value the value to write to the target memory Example WM16 0x10000100 0x8230 DCR Copyright 1997 2011 by ABATRON AG Switzerland V 1 13 4 A for GNU Debugger BDI2000 ColdFire User Manual 23 WM32 address value Write a word 32bit to the selected memory place address the memory address value the value to write to the target memory Example WM32 0x1000010C 0x003C0001 DCMRO MMAP start end Because a memory access to an invalid memory space via BDM can lead to a deadlock this entry can be used to define up to 32 valid memory rang es If at least one memory range is defined the BDI checks against this range s and avoids accessing of not mapped memory ranges start the start address of a valid memory range end the end address of this memory range Example MMAP OxFFEO00000 OxFFFFFFFF Boot ROM DELAY value Delay for the selected time A delay may be necessary to let the clock PLL lock again after a new clock rate is selected value the delay time in milliseconds 1 30000 Example DELAY 500 delay for 0 5 seconds WTLB tag data Only V4e cores Adds an entry to the TLB array s For a detailed descrip tion of the tag data value look at the V4e MMU description The first WTLB entry in the init list also clears the hole TLB array tag virtual page number ASID shared and valid bit data real page number size cache mode and SRWXL bits Example WTLB 0x00000001 0x1001025C SRAM 8k CB RWX MMU setup example
45. roperly connected see Chapter 2 1 to 2 4 A To avoid data line conflicts the BDI2000 must be disconnected from the target system while programming the logic for an other target CPU see Chapter 2 1 1 r Connect BDI2000 Loader Enamel SN 95111242C Port COM2 E MAC 000001951112 Speed 115200 r BDI2000 Firmware Logic Current Loader 1 05 1 08 1 05 Firmware Logic Current Erase Update Synch Newest 1 08 1 05 f Configuration BDI IP Address Subnet Mask Default Gateway Config Host IP Address Configuration file JE cygwin home bdidemo coldfire mef5271 cfg Cancel Ok Transmit Writing setup data passed dialog box BDI2000 Update Setup Before you can use the BDI2000 together with the GNU debugger you must store the initial config uration parameters in the BDI2000 flash memory The following options allow you to do this Channel Select the communication port where the BDI2000 is connected during this setup session Baudrate Select the baudrate used to communicate with the BDI2000 loader during this setup session Connect Click on this button to establish a connection with the BDI2000 loader Once connected the BDI2000 remains in loader mode until it is restarted or this dialog box is closed Current Press this button to read back the current loaded BDI2000 software and logic versions The current loader firmware an
46. ry as word 32bit MDH lt address gt lt count gt display target memory as half word 16bit MDB lt address gt lt count gt display target memory as byte 8bit DUMP lt addr gt size lt file gt dump target memory to a file MM addr value cnt modify word s 32bit in target memory MMH addr value lt cnt gt modify half word s 16bit in target memory MMB addr value lt cnt gt modify byte s 8bit in target memory MT lt addr gt count memory test MC lt address gt lt count gt calculates a checksum over a memory range MV verifies the last calculated checksum RD lt name gt display CPU or user defined register RDFP display floating point registers RDUMP lt file gt dump all user defined register to a file RM name value modify CPU or user defined register TLB from to display TLB entry only V4e cores WTLB idx epn rpn write TLB entry only V4e cores RESET reset the target system BREAK SOFT HARD display or set current breakpoint mode GO lt pce gt set PC and start target system TI pc single step an instruction HALT force target to enter debug mode BI lt addr gt set instruction hardware breakpoint CI lt id gt clear instruction hardware breakpoint s BD RIW lt addr gt set data watchpoint 32bit access BDH RIW lt addr gt set data watchp
47. s in the erase list with the UNLOCK option are processed To clear all lock bits of an Intel J3 Strata flash use for example BDI gt unlock OxFF000000 1000 To erase or unlock multiple continuos flash sectors blocks of the same size the following Telnet commands can be used ERASE lt addr gt lt step gt lt count gt UNLOCK lt addr gt lt step gt lt count gt addr This is the address of the first sector to erase or unlock step This value is added to the last used address in order to get to the next sec tor In other words this is the size of one sector in bytes count The number of sectors to erase or unlock The following example unlocks all 256 sectors of an Intel Strata flash 28F256K3 that is mapped to 0x00000000 In case there are two flash chips to get a 32bit system double the step parameter BDI unlock 0x00000000 0x20000 256 Copyright 1997 2011 by ABATRON AG Switzerland V 1 13 4 A for GNU Debugger BDI2000 ColdFire User Manual 31 MCF52xxx internal flash CFM To erase and program the ColdFire Flash Module CFM you have to access it via the backdoor ad dresses IPSBAR 0x04000000 This backdoor address has to be used for erase and program commands Following an example how to setup for CFM programming when IPSBAR is at the default address off 0x40000000 FLASH WORKSPACE 0xx20000000 workspace in target SRAM for fast programming algorithm CHIPTYPE CFM MCFS52xxx internal flash BUSWI
48. s out of RAM on the target system Otherwise the algorithm is pro cessed within the BDI The workspace is used for a 1kByte data buffer and to store the algorithm code There must be at least 2kBytes of RAM avail able for this purpose address the address of the RAM area Example WORKSPACE 0x00000000 Copyright 1997 2011 by ABATRON AG Switzerland V 1 13 4 A for GNU Debugger BDI2000 ColdFire User Manual 28 ERASE addr increment count mode wait The flash memory may be individually erased or unlocked via the Telnet interface In order to make erasing of multiple flash sectors easier you can enter an erase list All entries in the erase list will be processed if you enter ERASE at the Telnet prompt without any parameter This list is also used if you enter UNLOCK at the Telnet without any parameters With the in crement and count option you can erase multiple equal sized sectors with one entry in the erase list address Address of the flash sector block or chip to erase increment If present the address offset to the next flash sector count If present the number of equal sized sectors to erase mode BLOCK CHIP UNLOCK Without this optional parameter the BDI executes a sec tor erase If supported by the chip you can also specify a block or chip erase If UNLOCK is defined this entry is also part of the unlock list This unlock list is processed if the Telnet UNLOCK command is entered without any parameters Note
49. the target CPU and a 10Base T Ethernet connector The firmware and the programmable logic of the BDI2000 can be updated by the user with a simple Windows based con figuration program The BDI2000 supports 1 8 5 0 Volts target systems 3 0 5 0 Volts target sys tems with Rev B Copyright 1997 2011 by ABATRON AG Switzerland V 1 13 4 AH for GNU Debugger BDI2000 ColdFire User Manual 4 1 2 BDI Configuration As an initial setup the IP address of the BDI2000 the IP address of the host with the configuration file and the name of the configuration file is stored within the flash of the BDI2000 Every time the BDI2000 is powered on it reads the configuration file via TFTP Following an example of a typical configuration file Configuration file for a MCF5307 board the initialistion list used to setup the target system INIT WCREG 0xCOF 0x10000001 MBAR map internal registers to 0x10000000 WCREG 0xC04 0x00800021 RAMBAR map internal SRAM to 0x00800000 WM16 0x10000080 OxFFEO CSARO Flash at OXFFE00000 WM16 0x1000008A OxOD80 CSCRO Flash 3 waits 16bit WM32 0x10000084 0x000F0001 CSMRO Flash 1MB R W valid WM16 0x10000100 0x8230 DCR SDRAM Trc 6 RC 48 WM32 0x10000108 0x00001300 DACRO base 0x00000000 timing 2 4 2 1 1 CBM 011 WM32 0x1000010C 0x003C0001 DCMRO mask 4MB enable WM32 0x10000108 0x00001308 DACRO Initiate Precharge All Command WM32 0x00000400 0x00000000 Execute PALL command WM32 0x1
50. uses TFTP to write a binary image to a host file Writing via TFTP on a Linux Unix system is only possible if the file already exists and has public write access Use man tftpd to get more information about the TFTP server on your host Copyright 1997 2011 by ABATRON AG Switzerland V 1 13 e A for GNU Debugger BDI2000 ColdFire 4 Specifications Operating Voltage Limiting Power Supply Current RS232 Interface Baud Rates Data Bits Parity Bits Stop Bits Network Interface Serial Transfer Rate between BDI and Target Supported target voltage Operating Temperature Storage Temperature Relative Humidity noncondensing Size Weight without cables Host Cable length RS232 User Manual 39 5 VDC 0 25 V typ 500 mA max 1000 mA 9 600 19 200 38 400 57 600 115 200 8 none 1 10 BASE T up to 16 Mbit s 1 8 5 0 V 3 0 5 0 V with Rev B 5 C 60 C 20 C 65 C 90 rF 190 x 110 x 35 mm 420g 2 5m Specifications subject to change without notice Copyright 1997 2011 by ABATRON AG Switzerland V 1 13 e A for GNU Debugger BDI2000 ColdFire 5 Environmental notice Disposal of the equipment must be carried out at a designated disposal site 6 Declaration of Conformity CE CC DECLARATION OF CONFORMITY This declaration is valid for following product Type of device BDM JTAG Interface Product name BDI2000 The signing authorities state that the
51. yntax of this file is as follows comment part name identifier parameter parameter2 parameterN comment identifier parameter parameter2 parameterN part name identifier parameterl parameter2 parameterN identifier parameter parameter2 parameterN etc Numeric parameters can be entered as decimal e g 700 or as hexadecimal 0x80000 3 2 1 Part INIT The part INIT defines a list of commands which should be executed every time the target comes out of reset The commands are used to get the target ready for loading the program file Commands in this section are processed in order from top to bottom WDREG register value Write value to the selected data register register the register number 0 7 value the value to write into the register Example WDREG 0 5 WAREG register value Write value to the selected address register register the register number O 7 value the value to write into the register Example WAREG 0 5 WCREG register value Write value to the selected control register register the register number e g 0x801 for VBR value the value to write into the register Example WCREG OxCOF 0x10000001 MBAR WM68 address value Write a byte 8bit to the selected memory place address the memory address value the value to write to the target memory Example WM8 OxFFFFFA21 0x04 SYPCR watchdog disable WM16 address value Write a half word 16bit to the selected memory place add
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