Metrologic Optimus S Programming Manual

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Programming Manual

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Printed on 20 March, 2006
"C" Programming Guide
Version 3.04.02
Optimus S
Optimus R
Copyright © 2005 Metrologic Instruments Inc.
All rights reserved
The software contains proprietary information of the Company; it is provided under a license agreement
containing restrictions on use and disclosure and is also protected by copyright law. Reverse engineering of
the software is prohibited.
Due to continued product development this information may change without notice. The information and
intellectual property contained herein is confidential between the Company and the client and remains the
exclusive property of the Company. If you find any problems in the documentation, please report them to us
in writing. The Company does not warrant that this document is error-free.
No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by
any means, electronic, mechanical, photocopying, recording or otherwise without the prior written
permission of the Company.
For product consultancy and technical support, please contact your local sales representative. Also, you may
visit our web site for more information.
Copyright Notice
i
Contents
Copyright Notice II
CHAPTER 1: Introduction 1
Revision History ...........................................................................................................................................1
CHAPTER 2: Development Environment 3
2.1 Directory Structure .................................................................................................................................3
2.1.1 BIN ...........................................................................................................................................4
2.1.2 ETC ..........................................................................................................................................4
2.1.3 INCLUDE.................................................................................................................................4
2.1.4 LIB............................................................................................................................................4
2.1.5 README .................................................................................................................................5
2.1.6 USER........................................................................................................................................5
2.2 Setup .......................................................................................................................................................5
2.3 Development Flow..................................................................................................................................5
2.3.1 Create Your Own C Source Program .......................................................................................7
2.3.2 Compile ....................................................................................................................................7
2.3.3 Link ..........................................................................................................................................8
2.3.4 Format Conversion .................................................................................................................12
2.3.5 Download Program to Flash Memory ....................................................................................12
2.4 C Compiler............................................................................................................................................12
2.4.1 Size of Types ..........................................................................................................................13
2.4.2 Representation Range of Integers ...........................................................................................13
2.4.3 Floating Types ........................................................................................................................14
2.4.4 Alignment ...............................................................................................................................14
2.4.5 Register and Interrupt Handling .............................................................................................14
2.4.6 Reserved Words......................................................................................................................14
2.4.7 Extended Reserved Words......................................................................................................15
2.4.8 Bit-Field Usage.......................................................................................................................15
CHAPTER 3: Terminal Specific Function Library 19
3.1 System...................................................................................................................................................20
3.1.1 General ...................................................................................................................................20
3.1.2 Power On Reset (POR)...........................................................................................................23
3.1.3 System Global Variables ........................................................................................................24
3.1.4 System Information ................................................................................................................28
3.1.5 Security...................................................................................................................................33
3.1.6 Program Manager ...................................................................................................................35
3.2 Barcode Reader.....................................................................................................................................40
3.2.1 Barcode Decoding ..................................................................................................................40
3.2.2 Code Type ..............................................................................................................................41
3.2.3 ScannerDescriptionTable Array .............................................................................................42
3.2.4 Scan Modes ............................................................................................................................48
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Contents
3.3 Keyboard Wedge Interface ...................................................................................................................60
3.3.1 Definition of the WedgeSetting Array....................................................................................60
3.3.2 KBD / Terminal Type.............................................................................................................61
3.3.3 Capital Lock Auto-Detection..................................................................................................62
3.3.4 Capital Lock Status Setting ....................................................................................................62
3.3.5 Alphabets Case .......................................................................................................................62
3.3.6 Digits Position ........................................................................................................................63
3.3.7 Shift / Capital Lock Keyboard................................................................................................63
3.3.8 Digit Transmission .................................................................................................................63
3.3.9 Inter-Character Delay .............................................................................................................64
3.3.10 Composition of Output String ..............................................................................................64
3.4 Buzzer...................................................................................................................................................67
3.4.1 Beeper Sequence.....................................................................................................................67
3.4.2 Beep Frequency ......................................................................................................................67
3.4.3 Beep Duration.........................................................................................................................68
3.5 Real-time Clock ....................................................................................................................................70
3.5.1 Calendar..................................................................................................................................70
3.5.2 Alarm......................................................................................................................................72
3.6 LED ......................................................................................................................................................73
3.7 Keypad..................................................................................................................................................74
3.7.1 General ...................................................................................................................................74
3.7.2 ALPHA Key ...........................................................................................................................77
3.7.3 FN Key ...................................................................................................................................80
3.8 LCD ......................................................................................................................................................80
3.8.1 Properties................................................................................................................................81
3.8.2 Cursor .....................................................................................................................................84
3.8.3 Display....................................................................................................................................87
3.8.4 Clear .......................................................................................................................................92
3.8.5 Image ......................................................................................................................................94
3.9 Fonts .....................................................................................................................................................96
3.9.1 Font Size.................................................................................................................................96
3.9.2 Display Capability ..................................................................................................................96
3.9.3 Multi-Language Font..............................................................................................................97
3.9.4 Special Fonts ..........................................................................................................................97
3.9.5 Font Files..............................................................................................................................100
3.10 Battery...............................................................................................................................................101
3.11 Communication Ports .......................................................................................................................103
3.11.1 Port Mapping ......................................................................................................................103
3.11.2 Receive & Transmit Buffers...............................................................................................103
3.11.3 RS-232, Serial IR & IrDA Communications ......................................................................109
3.11.4 PPP via IR/RS-232 .............................................................................................................112
3.12 Wireless Communications ................................................................................................................114
3.13.1 Wireless Models .................................................................................................................115
3.13.2 Network Configuration.......................................................................................................118
3.13.3 Initialization & Termination ...............................................................................................133
3.13.4 Network Status ...................................................................................................................135
3.13.5 WLAN (802.11b)................................................................................................................140
3.13.6 Bluetooth ............................................................................................................................174
3.13 Wireless Practice...............................................................................................................................180
3.13.1 WLAN (802.11b) - Practice ...............................................................................................180
3.13.2 Bluetooth - Practice ............................................................................................................182
3.14 File Manipulation..............................................................................................................................186
3.14.1 File System .........................................................................................................................186
3.14.2 Directory.............................................................................................................................186
3.14.3 File Name ...........................................................................................................................186
Contents
iii
3.14.4 File Handle (File Descriptor)..............................................................................................187
3.14.5 Error Code ..........................................................................................................................187
3.14.6 DAT Files ...........................................................................................................................190
3.14.7 DBF Files and IDX Files ....................................................................................................201
3.15 Memory.............................................................................................................................................213
3.15.1 Flash ...................................................................................................................................213
3.15.2 SRAM.................................................................................................................................215
3.16 Miscellaneous ...................................................................................................................................217
CHAPTER 4: Standard Library Routine 219
4.1 Input & Output: <stdio.h> ..................................................................................................................220
4.2 Character Class Tests: <ctype.h>........................................................................................................221
4.3 String Functions: <string.h> ...............................................................................................................222
4.3.1 Functions start with "str" ......................................................................................................222
4.3.2 Functions start with "mem" ..................................................................................................223
4.4 Mathematical Functions: <math.h> ....................................................................................................224
4.5 Utility Functions: <stdlib.h>...............................................................................................................226
4.5.1 Number Conversion..............................................................................................................226
4.5.2 Storage Allocation ................................................................................................................226
4.6 Diagnostics: <assert.h>.......................................................................................................................227
4.7 Variable Argument Lists: <stdarg.h> .................................................................................................227
4.8 Non-Local Jumps: <setjmp.h>............................................................................................................227
4.9 Signals: <signal.h> .............................................................................................................................227
4.10 Time & Date Functions: <time.h> ....................................................................................................227
4.11 Implementation-defined Limits: <limits.h>, <float.h> .....................................................................228
CHAPTER 5: Real-Time Kernel 229
Index 235
1
This "C" Programming Guide describes the application development process with the "C"
Compiler in details. It starts with the general information about the features and usages of
the development tools, the definition of the functions/statements, as well as some sample
programs.
This programming guide is meant for users to write application programs for the Metrologic
Portable Terminals by using the "C" Compiler with the proprietary portable-specific
libraries. It is organized in five chapters giving outlines as follows:
Chapter 1 “Introduction” – gives a brief on this manual.
Chapter 2 “Development Environment” – gives a concise introduction about the "C"
Compiler and the development flow for applications, which provides step-by-step
description in developing application programs for the portable data terminals with the
"C" Compiler.
Chapter 3 “Terminal-specific Functions” – presents callable routines that are specific
to the features of the portable data terminals.
Chapter 4 “Standard Libraries Routines” – briefly describes the standard ANSI
library routines for in many ANSI related literatures there can be found more detailed
information.
Chapter 5 “Real Time Kernel” – discusses the concepts of the real time kernel,
µC/OS. Users can generate a real time multi-tasking system by using the µC/OS
functions.
In This Chapter
Revision History................................................................ 1
Revision History
Version Release Date Notes
3.04.02 Dec 16, 2005
C H A P T E R 1
Introduction
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"C" Programming Guide
For Optimus S/R
3
In This Chapter
2.1 Directory Structure ...................................................... 3
2.2 Setup ............................................................................ 5
2.3 Development Flow....................................................... 5
2.4 C Compiler .................................................................. 12
2.1 Directory Structure
The C Language Development Kit for Metrologic Portable Terminals contains six
directories, namely, BIN, ETC, INCLUDE, LIB, README and USER. The purposes and
contents of each directory are listed below.
To set up the C language development environment on your PC, you may create the
\C_Compiler directory from the root directory and then simply copy the above six directories
from the CD-ROM to the \C_Compiler directory.
C H A P T E R 2
Development Environment
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"C" Programming Guide
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2.1.1 BIN
It contains executable files. Usage will be described further in later sections.
A number of execution files for compilation, linking, and so on.
asm900.exe cc900.exe Ezdriver.dll mac900.exe
thc1.exe thc2.exe tuapp.exe tuconv.exe
tufal.exe tulib.exe tulink.exe tumpl.exe
Wemu387.386
ProgLoad.exe: for downloading program via RS-232/IrDA, Cradle-IR, or TCP/IP.
2.1.2 ETC
It contains help and version information of the C Compiler.
2.1.3 INCLUDE
It contains header files.
"C" header files for standard library routines
assert.h ctype.h errno.h float.h limits.h
locale.h math.h setjmp.h signal.h stdarg.h
stddef.h stdio.h stdlib.h string.h time.h
1 header file for terminal specific library: lib_ops.h or lib_opr.h
1 header file for Real Time Kernel Library: ucos.h
2.1.4 LIB
It contains library object code files.
"C" standard library: c900ml.lib
Portable specific library: lib_ops.lib or lib_opr.lib
Chapter
2
Development
Environment
5
2.1.5 README
It contains C Compiler version update and supplemental information.
2.1.6 USER
It contains source code of the user's program or other sample programs.
2.2 Setup
Before using the compiler, some environmental variables must be added to the
autoexec.bat.
path = C:\C_Compiler\BIN (or your own path)
So that all executable files (.EXE and .BAT) can be found.
set THOME900 = C:\C_Compiler\
This is a must for the compiler to locate all necessary files.
set tmp = C:\tmp
This is the temporary working directory for the compiler and linker (for memory and
file swapping). Skip this if tmp is already specified.
To improve efficiency, the compiler invokes a virtual memory manager "DOS4GW". It
recognizes and supports various PCs. However, if it does not work on your PC, the program
PMINFO can be used to identify the problem. If you encounter problems in using the
compiler, run the PMINFO. Then print all messages and contact Metrologic Instruments
Inc.
2.3 Development Flow
The development process is much like writing any other C programs on PC.
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"C" Programming Guide
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The flow is illustrated as shown below.
Chapter
2
Development
Environment
7
2.3.1 Create Your Own C Source Program
The first step is to create or modify the desired C programs using any text editors. We
recommend that you use ".C" as the file extension and create them under the USER
directory, and then use the USER directory as the working directory. We also recommend
that you divide the whole program into modules while retaining function integrity, and put
modules into separate files to reduce compilation time.
2.3.2 Compile
To compile the C programs, use cc900 command in the directory of the target file.
cc900 -[options] FILENAME.C
For the usage of cc900 command and the options, please refer to cc900.hlp in the ETC
subdirectory.
The batch file "Y.BAT" which can be found under the USER directory has been created to
simplify the compiling process.
Y FILENAME.C
This batch file invokes the C compilation program which in turn calls many other
executable programs under the BIN directory. As these programs are invoked by the
compiler sequentially, their usages can be ignored. Also, many parameters are set in calling
the compiler driver to accommodate target machine environments. It is recommended to
use the Y.BAT file directly. If you attempt to write your own batch file, remember to put the
same parameters as shown below.
-XA1, -XC1, -XD1, -Xp1: alignment setting, all 1
-XF: no deletion of assembly file, if it is not necessary to examine the assembly file.
This option can be removed.
-O3: set optimization level (can be 0 to 3, but not the maximum optimization). If code
size and performance is not a problem, this option can be removed which will then set to
the default - O0, that is, no optimization at all. If optimization is enabled, care must be
taken that some instructions might be optimized and removed. For example,
Test()
{
unsigned int old_msec;
old_msec = sys_msec;
while (old_msec == sys_msec);
}
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"C" Programming Guide
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This routine waits until sys_msec is changed. And sys_msec is a system variable that is
updated each 5 ms by background interrupt. If optimization is enabled, this whole
routine is truncated as it is meaningless (which is a dead-loop). To avoid this, the type
identifier "volatile" can be used to suppress optimization.
-c: create object but no link
-e cerr.lst: create error list file "CERR.LST"
After compilation is completed, a relocatable object file named "program_name.REL" is
created which can be used later by the linker to create the executable object program. As the
compiler compiles the program into assembler form during the process, an accompanying
assembler source file "program_name.ASM" is also created. This file helps in debugging if
necessary. If any error occurs, they will be put into the file "CERR.LST" for further
examination.
2.3.3 Link
If the C source programs are successfully compiled into relocatable object files, the linker
must be used to create the absolute objects and then the file can be downloaded to the target
machine's flash memory for execution. However, a linker map file must be created.
TULINK FILENAME.LNK
This map file "FILENAME.LNK" is used to instruct the linker to allocate absolute addresses
of code, data, constant, and so on according to the target machine environments. This is a
lengthy process as it depends on the hardware architecture. Fortunately, a sample linker
map file is provided and few steps are required to customize it for your own need, while
leaving hardware-related stuff unchanged.
From the following sample linker file, you can see that only the file names need to be
changed (underlined & boldfaced sections). If the linking is successful, an absolute object
file names "FILE1.ABS" is created. Besides, a file named "FILE1.MAP" lists all code and
variable addresses, and, error messages if there is any.
Sample Linker File
-lm -lg -ll /* parameters for TULINK, do not change */
File1.rel /* your C program name */
File2.rel /* your C program name */
......
Chapter
2
Development
Environment
9
......
FileN.rel /* your C program name */
..\lib\lib_ops.lib /* Optimus S function library */
..\lib\c900ml.lib /* C standard library */
/*********************************************/
/* User could provide suitable values */
/* to the following variables */
/*********************************************/
MainStackSize = 0x001000;
HeapSize = 0x000100;
MaxSysRamSize = 0x020000;
/*********************************************/
/* Do not modify anything beyond this line */
/*********************************************/
memory
{
IRAM: org = 0x001100, len = 0x000e00 /* 0x1000 - 0x10ff IntVec */
/* 0x1f00 - 0x1fff Stack */
RAM : org = 0x205000, len = 0x3b000
ROM : org = 0xf00000, len = 0x0e0000
}
sections
{
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"C" Programming Guide
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code org = 0xf00000 : {
*(f_head)
*(f_code)
} > ROM
area org = 0x205000 : {
. += MainStackSize;
. += HeapSize;
*(f_bcr)
*(f_area)
} > RAM
data org=org(code)+sizeof(code) addr=org(area)+sizeof(area) :
{
*(f_data)
} /* global variables with initial values */
xcode org = org(data) + sizeof(data) addr = addr(data) +
sizeof(data) : {
*(f_xcode) /* code reside on RAM */
}
RAM_OVERFLOW_CHECK org = org(area) + MaxSysRamSize : {
. += 1;
} > RAM
icode org = org(xcode) + sizeof(xcode) addr = 0x001100 : {
*(f_icode) /* code reside on IRAM */
Chapter
2
Development
Environment
11
}
const org = org(icode) + sizeof(icode) : {
*(f_const)
*(f_tail)
} > ROM
}
ActualRamSize = (addr(xcode) + sizeof(xcode)+3)/4*4 - 0x205000 ; /*
long boundary */
SysRamEnd = org(area) + MaxSysRamSize; /* long boundary */
DataRam = addr(data);
XCodeRam = addr(xcode);
ICodeRam = addr(icode);
HeapTop = org(area) + MainStackSize;
/* End */
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2.3.4 Format Conversion
The absolute object file created by TULINK is in TOSHIBA's own format. Before being
downloaded to the target machine, it must be converted to the Motorola S format by using
the "TUCONV" utility.
TUCONV -Fs32 -o FILENAME.shx FILENAME.abs
The file extension .SHX is a must for the code downloader.
The batch file "Z.BAT" which can be found under the USER directory has been created to
simplify the linking and format conversion process. Simply run the batch file:
Z
The target executable file (with SHX extension) will then be generated if no error is found.
2.3.5 Download Program to Flash Memory
Now that the Motorola S format object file FILENAME.shx is created successfully, it can be
downloaded to the flash memory for testing. Run the DOWNLOAD.exe utility (or
IRLOAD.exe for IR interface) and configure the following parameters properly.
File Name:
Specify the absolute object file.
COM Port:
Select the appropriate COM port for transmission.
Baud Rate:
Supported baud rates are 115200, 57600, 38400, 19200, and 9600.
Parity:
None
Data Bits:
8
Flow Control:
None
The selected baud rate, parity, data bits, etc. must match the COM port settings of the target
machine.
2.4 C Compiler
This C compiler is for TOSHIBA TLCS-900 family 16-bit MCUs, and it is mostly ANSI
compatible. Some specific characteristics are presented in this section.
Chapter
2
Development
Environment
13
2.4.1 Size of Types
Types Size in byte
char, unsigned char 1
short int, unsigned short int, int, unsigned int 2
long int, unsigned long int 4
pointer 4
structure, union 4
2.4.2 Representation Range of Integers
Regarding the representation range of the values of integer types, macros are defined in the
header file <limits.h> as follows.
Macro Name Contents
CHAR_BIT number of bits in a byte (the smallest object)
SCHAR_MIN minimum value of signed char type
SCHAR_MAX maximum value of signed char type
CHAR_MIN minimum value of char type
CHAR_MAX maximum value of char type
UCHAR_MAX maximum value of unsigned char type
MB_LEN_MAX number of bytes in a wide character constant
SHRT_MIN minimum value of short int type
SHRT_MAX maximum value of short int type
USHRT_MAX maximum value of unsigned short int type
INT_MIN minimum value of int type
INT_MAX maximum value of int type
UINT_MAX maximum value of unsigned int type
LONG_MIN minimum value of long int type
LONG_MAX maximum value of long int type
ULONG_MAX maximum value of unsigned long int type
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2.4.3 Floating Types
Float types are supported and conform to IEEE standards.
Types Size in bits
float 32
double 64
long double 64
2.4.4 Alignment
Alignment of different types can be adjusted. This is to facilitate CPU performance by
trading off memory space. However, when all target systems utilize 8-bit data bus, the
alignment does not improve performance and is fixed to 1 for all types. In invoking the C
compiler, driver (-XA1, -XD1, -XC1, and -Xp1) is specified.
2.4.5 Register and Interrupt Handling
Register and interrupt handling are possible through C. However, they are prohibited as all
the accessing to system resources is supposed to be made via proprietary library routines.
2.4.6 Reserved Words
These are the reserved words (common to all Cs) in general.
auto break case char const
continue default do double else
enum extern float for goto
if int long register return
short signed sizeof static struct
switch typedef union unsigned void
volatile while
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