CROSSWARE CFDS. ColdFire Development Suite

Transcription

1 CROSSWARE CFDS 7 Crossware Products was established in September 1984 to fill an important and expanding niche in embedded development software. It developed tools for the M68000 as early as 1985 and in 1989 developed a C compiler and assembler to accompany Motorola s 68EC020EVM evaluation board. 7 ColdFire Development Suite It was one of the first companies to release a fully 32-bit embedded development environment and tool chain for WIN32 platforms. It released a C compiler and assembler for the ColdFire 7 family in In 2000 it added ColdFire simulation and debugging tools to produce a complete ColdFire Development Suite. The ColdFire Development Suite supports the ColdFire Version 2, 3 and 4 cores and includes the following: Optimising ANSI C compiler, assembler, linker and library manager and libraries Source level simulator to debug without hardware Source level BDM debugger to debug and program flash with a suitable BDM interface such as the P&E Micro parallel port interface or the Crossware FireFly USB BDM interface. Embedded Development Studio integrated development environment eliminates the learning curve for using the tools Manuals in printed and electronic form Technical support and free updates for 12 months. Crossware Products Old Post House Silver Street Litlington Royston Herts SG8 0QE United Kingdom Telephone + 44 (0) Facsimilie + 44 (0) Web info@crossware.com 1 REF: CFDS/0410

2 CROSSWARE COLDFIRE 7 The Crossware ColdFire ANSI standard C compiler generates code for the Motorola ColdFire CF52xx, CF5307 and CF5407 families of microprocessors. It comes as part of the Crossware ColdFire Development Suite and runs under Windows 9x, Windows NT 4.0, Windows 2000 and Windows XP. ANSI C Compiler HIGHLIGHTS Optimising ANSI C compiler with extensions for embedded development. Pre-written library routines including 32 bit and 64 bit floating point arithmetic. Comprehensive source level debug output. Data output for Embedded Development Studio browser. Language Definition The compiler conforms to the 1989 ANSI C specification and in addition provides a number of general enhancements including: variables can be any length with all characters significant the_interrupt keyword declares a C function as an interrupt routine the _persist keyword declares that a variable will retain its contents (eg. in battery backed up ram) during power down and should therefore not be initialized. It also supports a number of features from the 1999 ANSI C Standard including: The // characters mark the start of a comment which extends to the end of the line. Variables with can be defined anywhere within a block, not just at the beginning. Variables can be defined within the initialising expression of a for loop. In addition, the compiler supports the C++ feature that allows variables to be defined within the conditional expressions of the for loop, while loop, if statement and switch statement The support libraries are a subset of the ANSI standard libraries. The supported functions are listed below. 1 Crossware Products Old Post House Silver Street Litlington Royston Herts SG8 0QE UK Telephone + 44 (0) Facsimilie + 44 (0) Web info@crossware.com REF: CCFNT/0410

3 Data Sizes The compiler uses the following sizes for the various C data types: char and unsigned char short int and unsigned short int int and unsigned int long and unsigned long float double long double enum bit fields :1 byte :2 bytes :4 bytes; :4 bytes :4bytes (32 bits) :8 bytes (64 bits) :8 bytes (64 bits) :up to 4 bytes (minimum size to accommodate members) :up to 32 bits OPTIMIZATIONS Optimizations include: constant folding dead code elimination strength reduction algebraic simplification jump/branch optimization suppression of integral promotion global register allocation Source Code Browsing The compiler optionally generates information on all of the definitions of and references to the identifiers used in your program. This includes functions, function parameters, local variables, global and static variables, enum identifiers, typedefs, goto labels and the tag names of structures, unions and enums. The Embedded Development Studio will then use this information to allow you to uickly navigate through your source code. 2

4 In-Line Assembler Assembler code can be embedded in your C source code using two methods. The _asm keyword can be used to embed assembler into C functions. The #asm/#endasm directive allows assembler to be placed anywhere within a C source file, not just within functions. Strings inserted using the _asm keyword are scanned by the C preprocessor and so assembler statements can be generated using C macros with full macro token replacement. Additionally, the compiler can replace C variable names with the appropriate substring allowing easy access to global, static and local variables and parameters. On the other hand, assembler macros are best defined outside of functions and the #asm/#endasm directive allows this. #define enable_interrupts( level ) \ _asm( move.w ({ #level },A6),d0 ); \ _asm( move.w d0,sr ); #define disable_interrupts( level ) \ _asm( move.w SR,d0 ); \ _asm( move.w d0,({ #level },A6) ); \ _asm( move.l #$0700,d1 ); \ _asm( or.l d1,d0 ); \ _asm( move.w d0,sr ); int gettimeofday(struct timeval *tp) { unsigned long level; unsigned long seconds; unsigned long microseconds; if (tp == NULL) return -1; disable_interrupts(level); seconds = Seconds_since_epoch; microseconds = Current.ticks; enable_interrupts(level); tp->tv_sec = seconds + SECONDS_ADJUST; tp->tv_usec = microseconds * Microseconds_per_tick; return 0; } Code and data location Compiler generated code and data are automatically located in appropriate memory segments. Linker options allow these segments to be located at user defined memory locations. String constants and objects declared as const are located in code space. Initialised and uninitialised data are located in separate segments and initialisation of these segments is automatically carried out at run time. Directives are also available allowing you to tell the compiler to place code and data in your own named segments. This gives you further control on where code and data are placed and how data space is initialised. The Diab Data section and use_section pragmas are also supported 3

5 Debug Records Comprehensive debug records are generated by the compiler and embedded in the object files for each module. These are used by the linker to perform cross-module type checking and for output to the final program file. C Library Routines: abs( ) acos( ) acosl( ) asin( ) asinl( ) atan( ) atanl( ) atoi( ) atol( ) atoff( ) atolf( ) clearerr( ) ceil( ) ceill( ) cos( ) cosl( ) cosh( ) coshl( ) exit( ) exp( ) expl( ) fabs( ) fabsl( ) _fcvt( ) ferroe( ) fgetc( ) fgets( ) fileno( ) floor( ) floorl( ) fprintf( ) free( ) fscanf( ) getc( ) getchar( ) getche( ) gets( ) getvect( ) isalnum( ) isalpha( ) isascii( ) iscntrl( ) isdigit( ) isgraph( ) islower( ) isprint( ) ispuntc( ) isspace( ) isupper( ) isxdigit( ) labs( ) ldexp() log( ) logl( ) log10( ) log10l( ) malloc( ) memchr( ) memcmp( ) memcpy( ) memmove( ) memset( ) pow( ) powl( ) printf( ) putc( ) putchar( ) puts( ) rand( ) sbrk( ) scanf( ) setvect( ) sin( ) sinl( ) sinh( ) sinhl( ) sprintf( ) srt( ) srtl( ) srand( ) sscanf( ) strcat( ) scanf( ) strchr( ) strcmp( ) strcpy( ) strcspn( ) strlen( ) strncat( ) strncmp( ) strncpy( ) strpbrk( ) strrchr( ) strspn( ) strstr( ) tan( ) tanl( ) tanh( ) tanhl( ) time( ) toascii( ) tolower( ) toupper( ) ungetc( ) ungetch( ) vfprintf() vprintf() vsprintf() 4

6 CROSSWARE COLDFIRE 7 The Crossware ColdFire assembler is a sophisticated relocatable macro cross assembler that generates code for the Motorola ColdFire 520x, 5307 and 5407 microcontrollers. It comes complete with the Crossware Embedded Development Studio and runs under Windows 9x, Windows NT4.0, Windows 2000 and Windows XP. COLDFIRE Assembler HIGHLIGHTS Motorola compatible relocatable macro cross assembler Source level debug output in IEEE695 format Two alternative source file formats (.asm and.s) TECHNICAL DETAILS RELOCATABLE MACRO CROSS ASSEMBLER The cross assembler converts assembler code into an intermediate object module format which is subseuently linked with other intermediate object modules to create the final program. Features include: High speed assembly to create relocatable object module Motorola standard segment directives Motorola standard mnemonics Nestable macros with full argument passing Nestable conditional assembly Comprehensive range of assembler directives and pseudo ops (see below) Complex expression evaluation with Motorola standard operators Upper and lower case labels with up to 255 significant characters Upper and lower case opcode mnemonics Upper and lower case macro names with up to 255 significant characters Comprehensive error checking with descriptive error messages Debug output of symbolic information User definable listing format C preprocessos style #define, #undef, #if, #else, #endif etc. 1 Crossware Products Old Post House Silver Street Litlington Royston Herts SG8 0QE United Kingdom Telephone + 44 (0) Facsimilie + 44 (0) Web info@crossware.com REF: ACFNT/0410

7 DEBUG OUTPUT The assembler can optionally generate full source level debug information. The linker updates these debug records to take account of the final location of the target program and outputs them to the target program file in IEEE695 format. Debuggers and in-circuit emulators that support this popular format can then use it to facilitate full source level debugging. The following assembler directives and psuedo-ops are available: cf5202 cf5203 cf5204 cf5206 cf5206e cf5249 cf5282 cf5307 cf5407 clist common dc ds end endc endm eu fail fields ifc ifcc ific ifinc ifnc include list listf macr mc md mex nam noclist nolist nomc nomd nomex noobj nopage nose nouna obj opt org page pagewidth reg section set seon sym spc ttl una xdef xref 2

8 CROSSWARE COLDFIRE 7 The Crossware ColdFire linker, library manager and command like Make come as part of the Crossware ColdFire Development Suite which runs under Windows 9x, Windows NT4.0, Windows 2000 and Windows XP. Linker and Other Utilities LINKER HIGHLIGHTS Supports multiple regions of ROM and RAM. Allows named segments to be located at user defined addresses and in a user defined order. Supports Diab Data type linker script files. Supports up to 256 banks of switchable program memory and 256 banks of switchable xdata memory. RELOCATING LINKER The linker combines object modules created with the compiler and/or the assembler to create the final code that will run on your target system. It carries out the following functions: scans each module to collect segment and variable information arranges and positions segments at appropriate memory locations to suit the memory organisation of the target system and any specific location information supplied by the user finalises the values of all variables and calculates the results of any incomplete expressions extracts and relocates the code from each module to produce the final target program The target program can be produced in a number of different formats including Motorola S2 and S3 records, HP/Microtec IEEE695 format or as a binary rom image. (A utility is provided for users who wish to divide the binary rom image into separate files suitable for 8 bit wide memory chips). An optional link map will show the final location and sizes of all segments and the values of all global variables. Crossware Products Old Post House Silver Street Litlington Royston Herts SG8 0QE United Kingdom Telephone + 44 (0) Facsimilie + 44 (0) Web 1 REF: CFL/0410 info@crossware.com

9 LIBRARY MANAGER LIB Instead of being used to create a final target program, the object modules produced by the compiler and assembler can be integrated into a library. The library manager performs the tasks of: combining object modules into a library adding modules to an existing library removing or extracting modules from an existing library listing the contents of a library The Library manager can be automatically invoked from the Embedded Development Studio to build a complete object code library. An object code library can then be specified at link time when building your program. The linker will search the library and extract modules from it as necessary to complete your program. MAKE MAKE UTILITY The MAKE utility simplifies the task of keeping object files, libraries and target programs up-to-date. It detects if any source or dependency files have changed since the last build and runs the appropriate tools (compiler, assembler, linker or library manager) to rebuild out-of-date files. It supports many advanced features including macros, inference rules, conditional inclusion and other preprocessing directives and in-line files with automatic temporary file creation. Although the Embedded Development Studio uses its own integrated routines to keep projects up-to-date, this stand-alone MAKE utility can be used to build projects from the command-line or from within another application. The Embedded Development Studio will automatically create a makefile which is fully compatible with this stand-alone MAKE utility. 2

10 CROSSWARE COLDFIRE 7 The Crossware ColdFire Simulator creates a virtual ColdFire microprocessor that runs on your PC. It allows you to run your ColdFire program without any ColdFire hardware and watch your code execute in a user friendly graphic environment. It come as part of the Crossware ColdFire Development Suite which runs under Windows 9x, Windows NT4.0, Windows 2000 and Windows XP. Source Level Simulator HIGHLIGHTS Full source level debugging Simulates all Series 2 and Series 3 ColdFire chips including MAC unit Simulates Series 4 ColdFire chips, including branch acceleration cache and hardware stack Simulates on-chip timers and UART s Seamless integration with the Embedded Development Studio Dockable windows Multiple watch windows and tooltips for local and global C variables and assembler symbols Views of all memory areas, registers and disassembled program (mixed with source code where available) State capture to capture and restore the complete internal state of the microcontroller Complex heirarchical PC and data breakpoints built by drag-and-drop Source code profiling Code and data coverage analysis Multiple cycle counters 1 Crossware Products Old Post House Silver Street Litlington Royston Herts SG8 0QE United Kingdom Telephone + 44 (0) Facsimilie + 44 (0) Web info@crossware.com REF: SCFNT/0410

11 Seamless Integration with the Embedded Development Studio The Embedded Development Studio forms an integrated environment that binds together the various Crossware tools. It automatically detects the presence of the Simulator and loads it to create a single unified application. The text windows that you see as you single step through your program are exactly the same as those you use to create and edit your source code. If you set a breakpoint as you edit your code, this is where execution will stop when you instruct the Simulator to Go. When the simulator is used stand-alone', the Embedded Development Studio provides a customisable interface to your tool set. You can therefore edit and keep your project up-to-date using all of the sophisticated features of the Embedded Development Studio using your existing compiler, assembler and linker. Full Source Level Debugging The IEEE695 records generated by the Crossware C compiler and assembler contain full debugging information. These debug records are used by the Simulator to provide comprehensive source level debugging. You can single step and trace through your C source code files, you can single step and trace through your assembler source code files and you can set breakpoints at the source code level to control the execution of the Simulator. Alternatively, if your program does not contain any debugging information or if you want to step through your C source at the assembly level, the disassembly window supports your needs. Multiple Watch Windows for Local and Global Variables You can open up to five watch windows to display and edit the values of your C and assembler variables. One of these watch windows will automatically display local variables and be automatically updated as variables move in and out of scope. The other four can display global and local variables of your choice. You can freeze the contents of a watch window to prevent it from being updated by the simulator. This feature allows you to compare historic and current values of your variables. Call Stack The call stack allows you to follow the progress of your program through the layers of function calls. The call stack window shows the name of each active function, and the values of the program counter, stack pointer and the source code line number reached in each function. You can navigate through the functions in the call stack - double clicking on the function name in the call stack window will take you to the location in your source code reached in that function. 2

12 Views of Memory Areas You can open multiple views and watch all memory areas, setting breakpoints when memory locations are written, read or both. Coloured highlighting shows you which locations are changing and optionally you can enable data coverage so that you can clearly see which memory locations have been accessed and which have not. You can edit any memory location in hexadecimal or ASCII format. View Named Registers You can open a view to display and edit named registers. Exception Simulation and Views You can either trap or simulate exceptions. You can choose which exceptions to trap and which to simulate on an individual basis. Exceptions that are being simulated can be triggered either by a condition that occurs in your program (eg. address error or trap) or from a tree view that displays the exception being simulated. State Capture The state capture facility allows you to store the complete internal state of the simulated microcontroller. You can capture the internal state any number of times and select and view them at a later stage. When you select and view a captured state, all of the memory views are updated to show the captured state. You can fully restore a captured state. Then, when you next run the simulator it will start with all conditions, memory, cycle counters, program counter, etc restored to the values current at the moment you captured the state. You can use this feature to repeatedly run a small segment of your code. 3

13 Views of Timers You can open an activity view for each timer and immediately see how your program has configured it. You can watch the counter value as it changes during program execution. Views of UARTs You can open an activity view for each uart. There are two views to choose between. One shows you how your program has configured the UART and the other displays the UART operating as your program executes. 4

14 Variable Tooltips Tooltips allow the type, value and location of a variable or symbol to be viewed without a watch window. If the mouse cursor remains stationary for more than half a second over a variable or symbol in a source code window a small window pops up to display this information. Complex Heirarchical Breakpoints Simple PC and data source level breakpoints can be built into complex break conditions using drag-and-drop. A tree view displays the breakpoints and one breakpoint can be made dependent on another simply by dragging the other breakpoint onto it. One breakpoint becomes the child of the other. A breakpoint can have multiple children and these can be combined using AND and OR logic so the the parent will not be triggered until either all or any one of it s children have been triggered. Child breakpoints can have their own children and so it is possible to build extremely complex breakpoints with a minimum of effort. As each breakpoint is encountered by the executing program, it s count is decremented and displayed. When the count reaches zero, the breakpoint is triggered and it s indicator changes from red to green. It is therefore easy to follow the progress of the breakpoint heirarchy as the breakpoints are encountered and triggered. Execution halts when the topmost parent is triggered. Source Level Data Breakpoints Breakpoints can be set on C and assembler variables to halt execution when the variables are accessed or when they match a value or range of values. Multiple data and PC breakpoints can be combined with each other using drag-and-drop in the breakpoint tree as described above. 5

15 Source Code Profiling As the simulator runs your program, it can optionally capture information about the execution history. It can use this information to produce an execution profile of your source code. This will tell you how much time your program spent executing in the different parts of your code. The profile results are listed in a text window, sorted in accordance with your selected criteria. A double click on a listed item will take you to the relevant line of your source code. Code and Data Coverage The information captured during execution can also be used to provide a coverage analysis. Code coverage will show you which parts of your code have been executed and which have not. Data coverage will show you which memory locations have been accessed during execution. Multiple Cycle Counters The status line contains three cycle counters. One of these displays the number of cycles executed since the start of the program, another displays the number cycles executed since the last command was issued (such as Step, Trace or Go). The third is a trip counter and displays the number of cycles executed since you last reset it to zero. Memory The simulator allocates memory in 64k blocks as reuired by your program. The maximum memory is therefore limited only by the amount of memory on your PC. Program File Formats The file formats supported for the ColdFire program code are Motorola S-records, IEEE695, Intel hex. and Binary. 6

16 CROSSWARE COLDFIRE 7 ColdFire BDM Debugger The Crossware BDM Debugger uses the ColdFire's BDM module and a suitable cable to allow you to debug your programs using your PC and the graphic environment of Windows 9x, Windows NT4.0, Windows 2000 and Windows XP. Source Level Debugger It shares the user interface with the Crossware ColdFire simulator and a single command switches the simulator into remote debugging mode. Features include: Full source level debugging Works with parallel port cables compatible with the ColdFire cable from P&E Micro Works with FireFly, Crossware s USB BDM interface for ColdFire Execute target program with or without a target board reset Execute target program with or without download via the parallel port Automatic configuration script creation Seamless integration with the Embedded Development Studio Dockable windows Multiple watch windows to view and edit local and global C variables and assembler symbols. Tooltips. Views of all memory areas, registers and disassembled program mixed with source code View of chip selects Uses SIM configuration to avoid accessing invalid memory Supports hardware PC and data breakpointing. Programs flash. Availability The ColdFire BDM Debugger is included as part of the ColdFire Development Suite. Crossware Products Old Post House Silver Street Litlington Royston Herts SG8 0QE United Kingdom Telephone + 44 (0) Facsimilie + 44 (0) Web info@crossware.com REF: DCFNT/0410

17 The Crossware Embedded Development Studio leverages the features of Windows to provide a development environment that allows the programmer to concentrate on the primary task of software development. It eliminates at a stroke, the learning curve normally associated with the use of a sophisticated tool chain and provides an extensive range of features to help the programmer. It encourages a project management approach with wizards and property pages to help with the setup process. It features a multi-threaded interface to multiple tool chains, an integrated feature rich text editor with full context colouring, multiple terminal emulators, a source code browser, complete on-line books with full text searching and a uniue configuration system to manage startup files and target specific options. 7 CROSSWARE EMBEDDED DEVELOPMENT STUDIO A user friendly Integrated Development Environment The Embedded Development Studio comes with the Crossware tools of your choice. Whatever Crossware tools you choose, they will be seamlessly integrated into the Embedded Development Studio allowing you to make your choice of target system from all of the options available. As you write your source code in the integrated editor, context colouring highlights the language keywords and the assembler opcodes supported by your target system. The Embedded Development Studio works out the dependencies in your source code and displays all of the files in your project in a project tree. Editing any of these files is only a double click away. When you click on the Build icon your code will be compiled, assembled and linked in the background allowing you to carry on with other important tasks. Crossware Products Old Post House Silver Street Litlington Royston Herts SG8 0QE United Kingdom Telephone + 44 (0) Facsimilie + 44 (0) Web info@crossware.com 1 REF: EDS/0409

18 HIGHLIGHTS User friendly interface to a sophisticated range of embedded development software. Dockable windows to help you organise your desktop. Project based approach with project files and dependencies displayed in a tree structure. Configure your project to build an executable program or object code library. Integrated build utility to keep your project up-to- date. Runs in the background allowing you to continue your work during the build process. Wizards to help you set up your options at the start of a new project. Property pages to allow you to adjust your project settings as your development proceeds. Integrated editor with context colouring of language keywords and the assembler opcodes supported by your chosen target system. Integrated terminal emulator operating at the maximum baud rates allowed by windows. Automatic generation of a build script which can be used to build your project from the command-line or from within another application. Integrated browser to easily locate C symbol definitions and references. File text search to locate and jump into text files. Uniue startup file system creates and maintains the startup code for your project. On-line books with full text search. Supports multiple Crossware tool chains and third party tool chains. Customisable commands allow you to run other executables. Allows multiple projects to be simultaneously loaded. TECHNICAL DETAILS DOCKABLE WINDOWS Multiple features reuire multiple views and organising the positions of these views on the screen can soon become a burden. When a new window is opened, the user is reuired to position it so that it does not obscure the other windows that need to be seen. Dockable windows overcome this problem. When a dockable window is opened it will automatically position itself near the edge of the screen. The other windows are moved to accommodate it and so nothing is obscured. It can be dragged so that it docks at a different location or so that it floats above the other windows. Alternatively it can be completely undocked so that it behaves like a conventional Windows window. 2

19 SEAMLESS INTEGRATION The Embedded Development Studio is a multiple target environment. It automatically detects which tools are present and configures itself accordingly. When you create a new project and select the target family, the tools for that target family are automatically made available. If a simulator or debugger for the target family is present then this is integrated into the Embedded Development Studio to form a single seamless environment. MULTI-THREADED INTERFACE Multi-threading is used extensively in the Embedded Development Studio. It is used by the find-in-files utility, by the terminal emulators and most importantly by the interface to tool chain components such as the compiler, assembler and linker. The various thread priorities have been carefully configured so that editing and other user tasks are not affected by tasks running in the background. CONFIGURATION MANAGEMENT One of the issues with embedded development is the initialisation of the target system. Different microcontrollers and target boards reuire different startup routines. There are too many variations to be covered by a standard set of routines and so the Embedded Development Studio provides a system to allow users to easily define and include their own routines. This configuration management system also allows other reuirements such as memory ranges, compiler and linker options, etc to be defined. This is ideal for managers of software teams who can pre-configure the Embedded Development Studio so that it allows their programmers to easily select the appropriate configuration. 3

20 PROJECT BASED APPROACH Your source files will be organised into a project and displayed in a tree structure. Your source files will be automatically scanned for dependencies and these dependency files will also be displayed in the project tree. The project tree is automatically updated as you add or remove files from your project. A number of actions can be performed from the project tree view. You can open, compile or assemble the selected file, create and open a listing of the compiled or assembled file, create and open a link map for the project and convert the project view to and from a dockable window. Object files can also be included in your project allowing you for instance to extract specific files from a non-default library for inclusion in your program. You can also add documentation files to your project. If they are text files (with a.txt extension) they will be opened in the Embedded Development Studio but otherwise they will be opened by the application associated with the particular file type. Therefore you can for instance include Word, WordPerfect, CorelDraw, Excel and Lotus documents in your project and can open then uickly from the project view. Version 4 of the Embedded Development Studio allows multiple projects to be simultaneously loaded into the environment. This is particularly useful if an application and a set of libraries are being combined, if a bootloader and the application it loads are being simultaneously developed, or if several co-operating applications are being developed. In addition source level browsing information can be combined across any or all of the projects loaded into the environment. Therefore, if an application and a set of libraries are being developed, the programmer can easily find all of the references and definitions for C identifiers across the complete set of projects. CREATING A NEW PROJECT When you want to create a new project you will be guided through the process by the New Project Wizard. You select the type of project you want (executable program, object code library or stand-alone Simulator/Virtual Workshop) and then answer a simple set of uestions that the Wizard will present to you. If you accept the defaults you will exit the project creation process with preliminary source code files that are complete enough to compile and run. 4

21 BUILD CONFIGURATION You can configure your project so that it creates an executable program that will run on your target system or so that it creates an object code library of reusable modules. All compiler, assembler, linker and library manager options can be configured from an easy to use set of tabbed dialog boxes. COMPILER OPTIONS The compiler options available will depend upon the selected target chip. For instance the 8051 C compiler supports different memory models, non-reentrant code etc and selections for these features automatically appear in the compiler settings tab if the 8051 chip is selected. Additional compiler options may be automatically used depending upon the particular chip variant selected from the family member list. ASSEMBLER OPTIONS Assembler options can be selected from the Assembler settings tab. Additional options will appear if the assembler for the selected chip supports them. Additional assembler options may be automatically used depending upon the particular chip variant selected from the family member list. 5

22 LINKER OPTIONS The Linker settings tab again adapts itself to the target chip with for instance the max idata field appearing for the 8051 chip. The basic ranges for ROM and RAM can be set up which is usually enough for the average program. ADVANCED LINKER OPTIONS In addition, Advanced linker settings allow named rom and ram segments to be located at precise addresses and located relative to each other in a defined order. Furthermore additional ranges for ROM and RAM can be set up and optionally declared with a bank number to support memory bank switching where reuired. LIBRARY MANAGER OPTIONS The Library settings tab allows the name of the file that will contain the library to be defined if you wish to change it from the default filename. 6

23 CUSTOM BUILD STEPS You can specify your own commands to be executed before and after the link step and before and after the library manager is run. Up to 10 commands can be run at each step and they can be either 16 bit or 32 bit programs. Each custom command can be saved with the project, with the family member, with the target family or with the application. Therefore you can choose which commands will automatically be present with complete flexibility. COMPLETELY CUSTOMISED BUILD If you want to use a simulator or Virtual Workshop with a third party tool chain, you can choose the Stand-Alone configuration as the project type. You can then specify your own commands for the compile, assembler and link stage and completely customise the build process using either 16 or 32 bit tools. You can also customise the environment to support tool chains that expect different environment variables to the normal INCLUDE and LIB variables. SOURCE CODE BROWSING The Crossware compilers optionally generate information on all of the definitions of and references to the identifiers used in your program. This includes functions, function parameters, local variables, global and static variables, enum identifiers, typedefs, goto labels and the tag names of structures, unions and enums. The Embedded Development Studio will then use this information to allow you to uickly navigate through your source code. You can open the browse dialog box to view the information and jump to the selected definition or reference or you can use hot key or mouse commands for rapid hyperjump navigation. 7

24 ADVANCED EDITING You can create and edit your source code using the advanced text editing features of the Embedded Development Studio. Features include: Context colouring of your C and assembler code. Assembler code is context coloured in pure assembler source files, when its embedded in C source and when its displayed in a listing. User specified colours for context coloured and normal text. User specified background colour. User specified fonts. Optional auto indent of C source. Optional auto indent of assembler source. User definable tab width. Convert tabs to spaces or keep as tab characters. Unlimited undo/redo. Cut, copy and paste blocks of text. Cut, copy and paste columns of text. Drag and drop blocks of text within and between documents. Drag and drop columns of text within and between documents. Text search and search and replace within documents with optional case sensitivity and regular expressions. Text search of files on disk with Go to Find, Go to Next and Go to Previous commands that will load the file and select the text found ready for immediate editing or replacement. Bookmarks. Auto save on project build. Optional auto reload of documents modified outside of the editor. Printing of document or selected text with user definable header and footer. Set and clear breakpoints to be used during debugging. Record and playback keystrokes and commands. 8

25 ON-LINE AND PRINTED MANUALS User manuals are provided printed and bound so that you can study the features and facilities available at your leisure and away from your computer. The identical manuals are available for instant access from within the Embedded Development Studio - you can press the hot help key over an indexed keyword to instantly bring up the appropriate topic or search the complete set of on-line manuals for a word, phase or complex expression. A full table of contents is displayed for each on-line manual. AVAILABILITY The Embedded Development Studio accompanies a range of development tools from Crossware. HOST SYSTEM REQUIREMENTS IBM compatible PC with an Intel Pentium or above running under Windows 9x, Windows NT4.0, Windows 2000 or Windows XP. Crossware Products is the business name of Crossware Limited. Registered address as above. Registered in England and Wales under company registration number CROSSWARE is a registered trademark of Crossware Associates. 9