MSP-FET430 FLASH Emulation Tool (FET)
(For use with IAR Workbench Version 3.x)
User's Guide
User's Guide
2004 SLAU138A
Mixed Signal
Products
IMPORTANT NOTICE
Texas Instruments and its subsidiaries (TI) reserv e the right to make changes to their products or to discontinue any
product or service without notice, and advise customers to obtai n the latest version of relevant information to verify, before
placing orders, that information being relied on is current and complete. All products are sold subjec t to the terms and
conditions of sale supplied at the time of order acknowledgment, including those pertaining to warranty, patent
infringement, and limitation of liability.
TI warrants performance of its products to the specifications applicable at the time of sale in accordance with TI’s
standard warranty. Testing and other quality c ontrol techniques are utilized to the extent TI deems necessary to support
this warranty. Specific t esting of all parameters of each dev ice is not necessarily performed, except those mandated by
government requirements.
Customers are responsible for their applications using TI components.
In order to minimize risks associated with the customer’s appl ications, adequate design and operating safeguards must
be provided by the customer to minimize inherent or procedural hazards.
TI assumes no liability for applications assistance or customer produc t design. TI does not warrant or represent that any
license, either express or implied, is granted under any patent right, copyright, mask work right, or other intellectual
property right of TI coveri ng or relati ng to any comb ination, m achine, or proc ess in whic h s uch produc ts or s ervic es might
be or are used. TI’s publication of inform ation regarding any third party’s products or services does not const itute TI’s
approval, license, warranty or endorsement thereof.
Reproduction of information in TI data books or data s heets is perm issible onl y if reproduc tion is wit hout alterat ion and is
accompanied by all associated warranties, conditions, limitations and notices. Repres entation or reproduction of this
information with alteration voids all warrant ies provided f or an ass ociated TI produc t or s ervice, is an unf air and dec eptiv e
business practice, and TI is not responsible nor liable for any such use.
Resale of TI’s products or servic es with statements different from or beyond the parameters
or service voids all express and any implied warranties for the associated TI product or serv ice, is an unfair and deceptive
business practice, and TI is not responsible nor liable for any such use.
Also see: Standard Terms and Conditions of Sale for Semiconductor Products.
This manual documents the Texas Instruments MSP-FET430 Flash
Emulation Tool (FET). The FET is the program development tool for the
MSP430 ultra low power microcontroller. Both available interfaces, the
Parallel-Port-Interface and the USB-Interface, are described here.
How to Use This Manual
Read and follow the Get Started Now! chapter. This chapter will enable you
to inventory your FET, and then it will instruct you to install the software
and hardware, and then run the demonstration programs. Once you’ve
been demonstrated how quick and easy it is to use the FET, we suggest
that you complete the reading of this manual.
Preface
Read This First
This manual describes the set-up and operation of the FET, but does not
fully teach the MSP430 or the development software systems. For details
of these items, refer to the appropriate TI and IAR documents listed in
Chapter 1.9 Important MSP430 Documents on the CD-ROM and WEB.
This manual is applicable to the following tools (and devices):
MSP-FET430X110 (for the MSP430F11xIDW, MSP430F11x1AIDW, and
MSP430F11x2IDW devic es )
MSP-FET430P120 (for the MSP430F12xIDW and MSP430F12x2IDW
devices)
MSP-FET430P140 (for the MSP430F13xIPM, MSP430F14xIPM,
MSP430F15xIPM, MSP430F16xIPM, and MSP430F161xIPM devices)
MSP-FET430P410 (for the MSP430F41xIPM devices)
MSP-FET430P430 (for the MSP430F43xIPN devices)
MSP-FET430P440 (for the MSP430F43xIPZ and MSP430F44xIPZ
devices)
MSP-FET430UIF (debug interface with USB connection, for all MSP430
Flash based devices)
This tool contains the most up-to-date materials available at the time of
packaging. For the latest materials (data sheets, User’s Guides, software,
applications, etc.), visit the TI MSP430 web site at www.ti.com/sc/msp430
or contact your local TI sales office.
,
iii
C
W
Information About Cautions and Warnings
This book may contain cautions and warnings.
This is an example of a caution statement.
A caution statement describes a situation that could potentially
damage your software or equipment.
AUTION
This is an example of a warning statement.
A warning statement describes a situation that could potentially
cause harm to you
.
ARNING
The information in a caution or a warning is provided for your protection.
Read each caution and warning carefu lly .
Related Documentation From Texas Instruments
MSP430xxxx Device Data Sheets
❏❏❏❏ MSP430x1xx Family User’s Guide, SLAU049
❏❏❏❏ MSP430x3xx Family User’s Guide, SLAU012
❏❏❏❏ MSP430x4xx Family User’s Guide, SLAU056
iv
If You Need Assistance
Support for the MSP430 device and the FET is provided by the Texas
Instruments Product Information Center (PIC). Contact information for the
PIC can be found on the TI web site at www.ti.com
specific information can be found on the MSP430 web site at
www.ti.com/sc/msp430
Note: Kickstart is supported by Texas Instruments
Although Kicksta rt is a product of IAR, Texas Instruments provides the
support for it. Therefore, please do not request support for Kickstart from
IAR. Please consult the extensive documentation provided with Kickstart
before requesting assistance.
FCC Warning
This equipment is intended for use in a laboratory test environment only. It
generates, uses, and can radiate radio frequency energy and has not been
tested for compliance with the limits of computing devices pursuant to
subpart J of part 15 of FCC rules, which are designed to provide
reasonable protection against radio frequency interference. Operation of
this equipment in other environments may cause interference with radio
communications, in which case the user at his own expense will be
required to take whatever measures may be required to correct this
interference.
. Additional device-
.
v
vi vii
Contents
Read This First................................................................................................................iii
About This Manual.....................................................................................................iii
How to Use This Manual............................................................................................iii
Information About Cautions and Warnings................................................................ iv
Related Documentation From Texas Instruments...................................................... iv
If You Need Assistance..............................................................................................v
Table 2-1. Number of device breakpoints, and other emulation features.................2-9
Table D-1. F4xx/80-pin Signal Mapping...................................................................... D-2
ix
Chapter 1
Get Started Now!
This chapter will enable you to inventory your FET, and then it will instruct you to
install the software and hardware, and the n run the de mons trat ion progra ms .
One READ ME FIRST document.
One MSP430 CD-ROM.
One MSP-FETP430IF FET Interface module. This is the unit that has a 25-pin
male D-Sub connector on one end of the case, and a 2x7 pin male
connector on the other end of the case.
MSP-FET430P120: One MSP-TS430DW28 Target Socket module. This is the
PCB on which is mounted a 28-pin ZIF socket for the MSP430F12xIDW or
MSP43012x2IDW device. A 2x7 pin male connector is also present on the
PCB.
MSP-FET430P140: One MSP-TS430PM64 Target Socket module. This is the
PCB on which is mounted a 64-pin clam-shell-style socket for the
MSP430F13xIPM, MSP430F14xIPM, MSP430F15xIPM, MSP430F16xIPM,
or MSP430F161xIPM device. A 2x7 pin male connector is also present on
the PCB.
MSP-FET430P410: One MSP-TS430PM64 Target Socket module. This is the
PCB on which is mounted a 64-pin clam-shell-style socket for the
MSP430F41xIPM device. A 2x7 pin male connector is also present on the
PCB.
MSP-FET430P430: One MSP-TS430PN80 Target Socket module. This is the
PCB on which is mounted an 80-pin ZIF socket for the MSP430F43xIPN
device. A 2x7 pin male connector is also present on the PCB.
MSP-FET430P440: One MSP-TS430PZ100 Target Socket module. This is the
PCB on which is mounted a 100-pin ZIF socket for the MSP430F43xIPZ or
MSP430F44xIPZ device. A 2x7 pin male connector is also present on the
PCB.
One 25-conductor cable.
1-2
One 14-conductor cable.
MSP-FET430P120: Four PCB 1x14 pin headers (Two male and two female).
MSP-FET430P140: Eight PCB 1x16 pin headers (Four male and four female).
MSP-FET430P410: Eight PCB 1x16 pin headers (Four male and four female).
MSP-FET430P430: Eight PCB 1x20 pin headers (Four male and four female).
MSP-FET430P440: Eight PCB 1x25 pin headers (Four male and four female).
One small box containing two or four MSP430 device samples.
Consult the device data sheets for device specifications. A list of device
errata can be found at http://www.ti.com/sc/cgi-bin/buglist.cgi
1.3 Kit Contents, MSP-FET430UIF
❏❏❏❏ One READ ME FIRST document
❏❏❏❏ One MSP430 CD-ROM
❏❏❏❏ One MSP-FET430UIF interface module
❏❏❏❏ One USB-Cable
❏❏❏❏ One 14-conductor cable
Get Started Now!
1.4 Software Installation
Follow the instructions on the supplied READ ME FIRST document to install the
IAR Embedded Workbench Kickstart. Read the file <Installation
Root>\Embedded Workbench x.x\430\doc\readme.htm from IAR for the latest
information about the Workbench. The term Kickstart is used to refer to the
function-limited version of Emb edd ed Wor kbe nc h (inc lud ing C-SPY deb ug ger ).
Kickstart is supplied on the CD-ROM included with each FET, and the latest
version is available from the MSP430 web site.
The above documents (and this document) can be accessed using:
START->PROGRAMS->IAR SYSTEMS->IAR EMBEDDED WORKBENCH
KICKSTART FOR MSP430 V3
Kickstart is compatible with WINDOWS 98, 2000, ME, NT4.0, and XP. However,
the USB-FET-Interface works only with WINDOWS 2000 and XP.
1.5 Hardware Installation, MSP-FET430X110
1) Connect the 25-conductor cable originating from the FET to the parallel port
of your PC.
2) Ensure that the MSP430F1121AIDW is securely seated in the socket, and
that its pin 1 (indicated with a circular indentation on the top surface) aligns
with the “1” mark on the PCB.
3) Ensure that jumpers J1 (near the non-socketed IC on the FET) and J5 (near
the LED) are in place. Pictorials of the FET and its parts are presented in
Appendix B.
1) Use the 25-conductor cable to connect the FET Interface module to the
parallel port of your PC.
2) Use the 14-conductor cable to connect the FET Interface module to the
supplied Target Socket module.
3) Ensure that the MSP430 device is securely seated in the socket, and that its
pin 1 (indicated with a circular indentation on the top surface) aligns with the
“1” mark on the PCB.
4) Ensure that the two jumpers (LED and Vcc) near the 2x7 pin male connector
are in place. Pictorials of the Target Socket module and its parts are
presented in Appendix B.
1.7 Hardware Installation, USB-IF, MSP-FET430UIF
Use the USB cable to connect the USB-FET Interface module to a USB port of
your PC. The USB FET should be recognized instantly as the USB device
driver should have been installed already with the Kickstart SW. If for any
reason the Install Wizard starts, respond to the prompts and point the wizard
to the driver files which are located in directory: <Installation
Root>\Embedded Workbench x.x\430\bin\WinXP. Detailed driver installation
instructions can be found in Appendix F.
After connecting to a PC the USB FET performs a selftest where the red LED
flashes for about 2 seconds. If the selftest passed successfully, the green
LED lits permanently.
Use the 14-conductor cable to connect the USB-FET Interface module to a
target board, such as an MSP430-FETPxxx Target Socket Module.
Ensure that the MSP430 device is securely seated in the socket, and that its pin
1 (indicated with a circular indentation on the top surface) aligns with the “1”
mark on the PCB.
Ensure that the two jumpers (LED and Vcc) near the 2x7 pin male connector are
in place. Pictorials of the MSP430 Target Socket modules and their parts are
presented in Appendix B.
The USB FET has additional features like: programming of the security fuse and
adjustable target Vcc (1.8V–5.0V); target can be supplied with up to 100mA.
1.8 “Flash”ing the LED
This section demonstrates on the FET the equivalent of the C-language “Hello
world!” introductory program; an application that flashes the LED is developed
and downloaded to the FET, and then run.
1) Start the Workbench (START->PROGRAMS->IAR SYSTEMS->IAR
EMBEDDED WORKBENCH KICKSTART FOR MSP430 V3->IAR
EMBEDDED WORKB EN C H) .
1-4
2) Use FILE->OPEN WORKSPACE to open the file at: <Installation
Root>\Embedded Workbench x.x\430\FET_examples\fet_projects.eww. The
workspace window will open.
Get Started Now!
3) Click on the tab at the bottom of the workspace window that corresponds to
your tool (FETxxx) and desired language (assembler or C).
4) Use PROJECT->OPTIONS->FET Debugger->Setup->Connection to select
the appropriate port: LPTx for the parallel FET Interface or TI USB FET for
the USB Interface.
5) Use PROJECT->REBUILD ALL to build and link the source code. You can
view the source code by double-clicking on the project, and then doubleclicking on the displayed source file.
6) Use PROJECT->DEBUG to start the C-SPY debugger. C-SPY will erase the
device Flash, and then download the application object file to the device
Flash.
Refer to FAQ, Debugging #1) if C-SPY is unable to communicate with the
device.
7) Use DEBUG->GO to start the application. The LED should flash!
8) Use DEBUG->STOP DEBUGGING to stop debugging, to exit C-SPY, and to
return to the Workbench.
9) Use FILE->EXIT to exit the Workbench.
Congratulations, you’ve just built and tested your first MSP430 application!
1-5
Get Started Now!
1.9 Important MSP430 Documents on the CD-ROM and WEB
The primary sources of MSP430 information are the device specific data sheet
and User’s Guide. The most up to date versions of these documents available at
the time of production have been provided on the CD-ROM included with this
tool. The MSP430 web site (www.ti.com/sc/msp430
version of these documents.
From the MSP430 main page on the CD-ROM, navigate to: Literature->MSP430
Literature->Data Sheets, to access the MSP430 device data sheets.
From the MSP430 main page on the CD-ROM, navigate to: Literature->MSP430
Literature->User’s Guides, to access the MSP430 device User’s Guides and
tools.
Documents describing the IAR tools (Workbench/C-SPY, the assembler, the C
compiler, the linker, and the librarian) are located in common\doc and 430\doc.
The documents are in PDF-format. Supplements to the documents (i.e., the
latest information) are available in HTML-format within the same directories.
430\doc\readme_start.htm provides a convenient starting point for navigating the
IAR documentation.
) will contain the latest
1-6
Chapter 2
Development Flow
This chapter discusses how to use Kickstart to develop your application
software, and how to use C-SPY to debug it.
Topic Page
2.1 Overview 2-2
2.2 Using Kickstart 2-2
2.2.1 Project Settings 2-3
2.2.2 Creating a Project from Scratch 2-5
2.2.3 Using an Existing IAR V1.x/V2.x Project 2-6
2.2.4 Stack Management within the .xcl Files 2-6
2.2.5 How to Generate Texas Instrument .TXT (and other format)
Files
2.2.6 Overview of Example Programs 2-7
2.3 Using C-SPY 2-9
2.3.1 Breakpoint Types 2-9
2.3.2 Using Breakpoints 2-9
2.3.3 Using Single Step 2-10
2.3.4 Using Watch Windows 2-11
2-7
2-1
Development Flow
2.1 Overview
Applications are developed in assembler and/or C using the Workbench, and
they are debugged using C-SPY. C-SPY is seamlessly integrated into the
Workbench. However, it is more convenient to make the distinction between the
code development environment (Workbench) and the debugger (C-SPY). CSPY can be configured to operate with the FET (i.e., an actual MSP430
device), or with a software simulation of the device. Kickstart is used to ref er to
the Workbench and C-SPY collectively. The Kickstart software tools are a
product of IAR.
Documentation for the MSP430 family and Kickstart is extensive. The CD-ROM
supplied with this tool contains a large amount of documentation describing the
MSP430. The MSP430 home page (www.ti.com/sc/msp430
of MSP430 information. The components of Kickstart (workbench/debugger,
assembler, compiler, linker) are fully documented in <Installation
Root>\Embedded Workbench x.x\common\doc and <Installation
Root>\Embedded Workbench\430\doc. .htm files located throughout the
Kickstart directory tree contain the most up to date information and supplement
the .pdf files. In addition, Kickstart documentation is available on-line via HELP.
) is another source
Read Me Firsts from IAR and TI, and this document, can be accessed using:
START->PROGRAMS->IAR SYSTEMS->IAR EMBEDDED WORKBENCH
KICKSTART FOR MSP430 V3
cs430.htm, cs430f.htm,
Assembler EW430_AssemblerReference.pdf a430.htm, a430_msg.htm
Compiler EW430_CompilerReference.pdf icc430.htm, icc430_msg.htm
C library CLibrary.htm
Linker and Librarian xlink.pdf xlink.htm, xman.htm, xar.htm
2.2 Using Kickstart
The Kickstart development environment is function-li mited. The following
restrictions are in place:
The C compiler will not generate an assembly code list file.
The linker will link a maximum of 4K bytes of code originating from C source
(but an unlimited amount of code originating from assembler source).
2-2
The simulator will input a maximum of 4K bytes of code.
A “Full” (i.e., unrestricted) version of the software tools can be purchased from
IAR. A mid-featured tool set – called “Baseline”, with a 12K byte C code size
limitation and basic floating-point operations – is also available from IAR.
Consult the IAR web site (www.iar.se
2.2.1 Project Settings
The settings required to configure the Workbench and C-SPY are numerous
and detailed. Please read and thorou ghly und er s tand t he doc ume ntat io n
supplied by IAR when dealing with project settings. Please review the project
settings of the supplied assembler and C examples; the project settings are
accessed using: PROJECT->OPTIONS with the project name selected. Use
these project settings as templates when developing your own projects. Note
that if the project name is not selected when settings are made, the settings will
be applied to the selected file (and not to the project).
The following project settings are recommended/required:
Specify the target device (GENERAL OPTIONS->TARGET->DEVICE)
Development Flow
) for more information.
Enable an assembler project or a C/assembler project (GENERAL OPTIONS-
>TARGET->ASSEMBLER ONLY PROJECT)
Enable the generation of an executable output file (GENERAL OPTIONS-
>OUTPUT->OUTPUT FILE->EXECUTABLE)
In order to most easily debug a C project, disable optimization (C/C++
Enable the generation of debug information in the compiler output (C/C++
Compiler ->OUTPUT->GENERATE DEBUG INFO)
Specify the search path for the C preprocessor (C/C++ Compiler-
>PREPROCESSOR->INCLUDE PATHS)
Enable the generation of debug information in the assembler output
(ASSEMBLER->OUTPUT->GENERATE DEBUG-INFO)
Specify the search path for the assembler preprocessor (ASSEMBLER -
>PREPROCESSOR->INCLUDE PATHS)
In order to debug the project using C-SPY, specify a compatible format
(LINKER->OUTPUT->FORMAT->DEBUG INFO [WITH TERMINAL IO])
Specify the search path for any used libraries (LINKER->CONFIG->SEARCH
PATHS)
Specify the C-SPY driver. Selec t PROJ ECT ->OPTIONS->Debugger->Setup-
>Driver->FET Debugger to debug on the FET (i.e., MSP430 device). Select
SIMULATOR to debug on the simulator. If FET Debugger is selected, use
PROJECT->OPTIONS->FET Debugger->Setup->Connection to select the
appropriate port: LPTx for the parallel FET Interface or TI USB FET for the
USB Interface.
2-3
Development Flow
Enable the Device Description file. This file makes C-SPY “aware” of the
specifics of the device it is debugging. This file will correspond to the
specified target device (DEBUGGER->SETUP->DEVICE DESCRIPTION>OVERRIDE DEFAULT)
Enable the erasure of the Main and Information memories before object code
download (FET DEBUGGER->SETUP->DOWNLOAD CONTROL->ERASE
MAIN AND INFORMATION MEMORY)
In order to maximize system performance during debug, disable Virtual
Breakpoints (FET DEBUGGER->SETUP ->USE VIRTUAL
BREAKPOINTS), and disable all System Breakpoints (FET DEBUGGER>SETUP ->SYSTEM BREAKPOINTS ON)
Note: Use of Factory Settings to quickly configure a project
It is possible to use the Factory Settings button to quickly configure a
project to a usable state.
The following steps can be used to quickly configure a project:
Note: The GENERAL OPTIONS tab does not have a FACTORY
SETTINGS button
1) Specify the target device (GENERAL OPTIONS ->TARGET>DEVICE)
2) Enable an assembler project or a C/assembler project (GENERAL
OPTIONS ->TARGET->ASSEMBLER ONLY PROJECT)
3) Enable the generation of an executable output file (GENERAL
OPTIONS ->OUTPUT->OUTPUT FILE->EXECUTABLE)
4) Accept the factory settings for the compiler (C/C++ COMPILER>FACTORY SETTI NGS)
5) Accept the factory settings for the assembler (ASSEMBLER>FACTORY SETTI NGS)
6) Accept the factory settings for the linker (LINKER->FACTORY
SETTINGS)
7) Accept the factory settings for C-SPY (DEBUGGER->FACTORY
SETTINGS)
8) To debug on the hardware, select DEBUGGER ->SETUP>DRIVER->FET DEBUGGER
9) Specify the active parallel port used to interface to the FET if not
LPT1 (FET DEBUGGER ->SETUP->CONNECTION->LPTx) or
specify the USB port (FET DEBUGGER ->SETUP->CONNECTION>TI USB FET)
2-4
Note: Avoid the use of absolute pathnames when referencing files.
Instead, use the relative pathname keywords $TOOLKIT_DIR$ and
$PROJ_DIR$. Refer to the IAR documentation for a description of these
keywords. The use of relative pathnames will permit projects to be
moved easily, and projects will not require modification when IAR
systems are upgraded (say, from Kickstart, or Baseline, to Full).
2.2.2 Creating a Project from Scratch
The following section presents step-by-step instructions to create an assembler
or C project from scratch, and to download and run the application on the
MSP430. Refer to Project Settings above. Also, the MSP430 IAR Embedded
Workbench IDE User Guide presents a more comprehensive overview of the
process.
1) Start the Workbench (START->PROGRAMS->IAR SYSTEMS->IAR
EMBEDDED WORKBENCH KICKSTART FOR MSP430 V3->KICKSTART
IAR EMBEDDED WORKBENCH).
2) Create a new text file (FILE->NEW->SOURCE/TEXT).
Development Flow
3) Enter the pr ogram text into the file.
Note: Use .h files to simplify your code development
Kickstart is supplied with files for each device that define the device
registers and the bit names, and these files can greatly simplify the task
of developing your program. The files are located in <Installation
Root>\Embedded Workbench x.x\430\inc. Simply include the .h file
corresponding to your target device in your text file (#include
“msp430xyyy.h”). Additionally, files io430xxxx.h are provided, and are
optimized to be included by C source files.
4) Save the text file (FILE->SAVE).
It is recommended that assembler text file be saved with a file type suffix of
“.s43”, and that C text files be saved with a file type suffix of “.c”.
5) Create a new workspace (FILE->NEW->WORKSPACE). Specify a
workspace name and press SAVE.
6) Create a new project (PROJECT->CREATE NEW PROJECT). Specify a
project name and press CREATE
7) Add the text file to the project (PROJECT->ADD FILES). Select the text file
and press OPEN. Alternatively, double-click on the text file to add it to the
project.
2-5
Development Flow
Note: How to add assembler source files to your project
The default file type presented in the Add Files window is “C/C++ Files”.
In order to view assembler files (.s43), select “Assembler Files” in the
“Files of type” drop-down menu.
8) Configure the project options (PROJECT->OPTIONS). For each of the
listed subcategories (GENERAL OPTIONS, C/C++ COMPILER,
ASSEMBLER, LINKER, DEBUGGER), accept the default Factory Settings
with the following exception s :
Specify the target device (GENERAL OPTIONS->TARGET->DEVICE)
Enable an assembler project or a C/assembler project (GENERAL
OPTIONS ->TARGET->ASSEMBLER ONLY PROJECT)
Enable the generation of an executable output file (GENERAL OPTIONS -
>OUTPUT->OUTPUT FILE->EXECUTABLE)
To debug on the FET (i.e., the MSP430), select DEBUGGER ->SETUP-
>DRIVER-> FET DEBUGGER
Specify the active port used to interface to the FET (FET DEBUGGER -
>SETUP->CONNECTION)
8) Build the pr ojec t (PROJE C T ->RE BUIL D ALL).
9) Debug the application using C-SPY (PROJECT->DEBUG). This will start CSPY, and C-SPY will get control of the target, erase the target memory,
program the target memory with the application, and reset the target.
Refer to FAQ, Debugging #1) if C-SPY is unable to communicate with the
device.
10) Use DEBUG->GO to start the application.
11) Use DEBUG->STOP DEBUGGING to stop the application, to exit C-SPY,
and to return to the Workbench.
12) Use FILE->EXIT to exit the Workbench.
2.2.3 Using an Existing IAR V1.x/V2.x Project
It is possible to use an existing project from an IAR V1.x/V2.x system with the
new IAR V3.x system; refer to the IAR document Step by step migration for EW430 x.xx. This document can be located in: <Installation Root>\Embedded
Workbench x.x\430\doc\migration.htm
2.2.4 Stack Management within the .xcl Files
The .xcl files are input to the linker, and contain statements that control the
allocation of device memory (RAM, Flash). Refer to the IAR XLINK
documentation for a complete description of these files. The .xcl files provided
with the FET (<Installation Root >\E mb edd ed Wor k be n ch
x.x\430\config\lnk430xxxx.xcl) define a relocatable segment (RSEG) called
CSTACK. CSTACK is used to define the region of RAM that is used for the
2-6
Development Flow
system stack within C programs. CSTACK can also be used in assembler
programs [MOV #SFE(CSTACK), SP]. CSTACK is defined to extend from the
last location of RAM for 50 bytes (i.e., the stack extends downwards through
RAM for 50 bytes).
Other statements in the .xcl file define other relocatable regions that are
allocated from the first location of RAM to the bottom of the stack. It is critical to
note that:
1. The supplied .xcl files reserve 50 bytes of RAM for the stack,
regardless if this amount of stack is actually required (or if it is
sufficient).
2. There is no runtime checking of the stack. The stack can overflow
the 50 reserved bytes and possible overwrite the other segments.
No error will be output.
The supplied .xcl files can be easily modified to tune the size of the stack to the
needs of the application; simply edit -D_STACK_SIZE=xx to allocate xx bytes
for the stack. Note that the .xcl file will reserve 50 byes for the heap if required
(say, by malloc()).
2.2.5 How to Generate Texas Instrument .TXT (and other format) F iles
The Kickstart linker can be configured to output objects in TI .TXT format for
use with the GANG430 and PRGS430 programmers. Select: PROJECT>OPTIONS->LINKER->OUTPUT->FORMAT->OTHER->MSP430-TXT. Intel
and Motorola formats can also be selected.
Refer to FAQ, Program Development #6).
2.2.6 Overview of Example Programs
Example programs for MSP430 devices are provided in <Installation
Root>\Embedded Workbench x.x\430\FET_examples. Each tool folder contains
folders that contain the assembler and C sources.
<Installation Root>\Embedded
Workbench\x.x\430\FET_examples\fet_projects.eww conveniently organizes
the FET_1 demonstration code into a workspace. The workspace contains
assembler and C projects of the code for each of the FET tools. Debug and
Release versions are provided for each of the projects.
<Installation Root>\Embedded Workbench
x.x\430\FET_examples\code_examples.eww conveniently organizes the code
examples into a workspace. The workspace contains assembler and C projects
of the code for each of the FET tools. Debug and Release versions are
provided for each of the projects.
<Installation Root>\Embedded Workbench x.x\430\FET_examples\contents.htm
conveniently organizes and documents the examples.
Additional code examples can be found on the MSP430 home page under
Design Resources.
2-7
Development Flow
Note: Some example programs require a 32KHz crystal on LFXT1, and
not all FETs are supplied with a 32KHz crystal.
2-8
2.3 Using C-SPY
Refer to Appendix C for a description of FET-specific menus within C-SPY.
2.3.1 Breakpoint Types
The C-SPY breakpoint mechanism makes use of a limited number of on-chip
debugging resources (specifically, N breakpoint registers, refer to Table 2-1
below). When N or fewer breakpoints are set, the application runs at full device
speed (or “Realtime”). When greater than N breakpoints are set and Use Virtual
Breakpoints is enabled (FET DEBUGGER->SETUP->USE VIRTUAL
BREAKPOINTS), the application runs under the control of the host PC; the
system operates at a much slower speed, but offers unlimited software
breakpoint (or “Non-Realtime”). During Non-Realtime mode, the PC effectively
repeatedly single steps the device and interrogates the device after each
operation to determine if a breakpoint has been hit .
Both (code) address and data (value) breakpoints are supported. Data
breakpoints and range breakpoints each require two address breakpoints.
Development Flow
Table 2-1. Number of device breakpoints, and other emulation features.
Device Breakpoints
(N)
MSP430F11x1 2
MSP430F11x2 2
MSP430F12x 2
MSP430F12x2 2
MSP430F13x 3 X
MSP430F14x 3 X
MSP430F15x 8 X X X X
MSP430F16x 8 X X X X
MSP430F161x 8 X X X X
MSP430F41x 2 X
MSP430F42x 2 X
MSP430F43x 8 X X X X
MSP430F44x 8 X X X X
MSP430FE42x 2 X
MSP430FG43x 2 X
MSP430FW42x 2 X
Range
Breakpoints
Clock
Control
2.3.2 Using Breakpoints
If C-SPY is started with greater than N breakpoints set and virtual breakpoints
are disabled, a message will be output that informs the user that only N
(Realtime) breakpoints are enabled (and one or more breakpoints are
disabled). Note that the workbench permits any number of breakpoints to be
set, regardless of the USE VIRTUAL BREAKPO INTS setting of C-SPY. If virtual
breakpoints are disabled, a maximum of N breakpoints can be set within CSPY.
State
Sequencer
Trace
Buffer
RESET’ing a program temporarily requires a breakpoint if PROJECT>OPTIONS->DEBUGGER->SETUP->RUN TO is enabled. Refer to FAQ,
Debugging #30).
2-9
Development Flow
The RUN TO CURSOR operation temporarily requires a breakpoint.
Consequently, only N-1 breakpoints can be active when RUN TO CURSOR is
used if virtual breakpoints are disabled. Refer to FAQ, Debugging #31).
If, while processing a breakpoint, an interrupt becomes active, C-SPY will stop
at the first instruction of the interrupt service routine. Refer to FAQ, Debugging
#24).
2.3.3 Using Single Step
When debugging an assembler file, STEP OVER, STEP OUT, and NEXT
STATEMENT operate like STEP INTO; the current instruction is executed at full
speed.
When debugging an assembler file, a step operation of a CALL instruction
stops at the first instruction of the CALL’ed function.
When debugging an assembler file, a (true) STEP OVER a CALL instruction
that executes the CALL’ed function at full device speed can be synthesized by
placing a breakpoint after the CALL and GO’ing (to the breakpoint in “Realtime
mode”).
When debugging a C file, a single step (STEP) operation executes the next C
statement. Thus, it is possible to step over a function reference. If possible, a
hardware breakpoint will be placed after the function reference and a GO will be
implicitly executed. This will cause the function to be executed at full speed. If
no hardware breakpoints are available, the function will be executed in NonRealtime mode. STEP INTO is supported. STEP OUT is supported.
Within Disassembly mode (VIEW->DISASSEMBLY), a step operation of a nonCALL instruction executes the instruction at full device speed.
Within Disassembly mode (VIEW->DISASSEMBLY), a step operation of a
CALL instruction will place – if possible - a hardware breakpoint after the CALL
instruction, and then execute GO. The CALL’ed function will execute at full
device speed. If no hardware breakpoint is available prior to the GO, the
CALL’ed function will be executed in Non-Realtime mode. In either case,
execution will stop at the instruction following the CALL.
It is only possible to single step when source statements are present.
Breakpoints must be used when running code for which there is no source code
(i.e., place the breakpoint after the CALL to the function for which there is no
source, and then GO to the breakpoint in “Realtime mode”).
If, during a single step operation, an interrupt becomes active, the current
instruction is completed and C-SPY will stop at the first instruction of the
interrupt service routine. Refer to FAQ, Debugging #24).
2-10
2.3.4 Using Watch Windows
The C-SPY Watch Window mechanism permits C variables to be monitored
during the debugging session. Although not originally designed to do so, the
Watch Window mechanism can be extended to monitor assembler variables.
Assume that the variables to watch are defined in RAM, say:
RSEG DATA16_I
varword ds 2 ; two bytes per word
varchar ds 1 ; one byte per character
In C-SPY:
1) Open the Watc h W ind ow: VIEW- >W ATCH
2) Use DEBUG->QUICK WATCH
3) To watch varw or d, enter in the Ex pr ess ion box:
(__data16 unsigned int *) #varword
4) To watch varchar, enter in the Expression box:
(__data16 unsigned char *) #varchar
Development Flow
5) Press the Add Watch button
6) Close the Quick Watch window
7) For the created entry in the Watch Window, click on the + symbol. This will
display the contents (or value) of the watched variable.
To change the format of the displayed variable (default, binary, octal, decimal,
hex, char), select the type, click the right mouse button, and then select the
desired format. The value of the displayed variable can be changed by
selecting it, and then entering the new value.
In C, variables can be watched by selecting them and then dragging-n-dropping
then into the Watch Window.
Since the MSP430 peripherals are memory mapped, it is possible to extend the
concept of watching variables to watching peripherals. Be aware that there may
be side effects when peripherals are read and written by C-SPY. Refer to FAQ,
Debugging #22).
CPU core registers can be specified for watching by preceding their name with
‘#’ (i.e., #PC, #SR, #SP, #R5, etc.).
Variables watched within the Watch Window are only updated when C-SPY
gets control of the device (say, following a breakpoint hit, a single step, or a
STOP/escape).
Although registers can be monitored in the Watch Window, VIEW->REGISTER
is a superior method.
2-11
Loading...
+ 66 hidden pages
You need points to download manuals.
1 point = 1 manual.
You can buy points or you can get point for every manual you upload.