User manual
Table Of Contents
- COVER
- TABLE OF CONTENTS
- CHAPTER 1 GENERAL INFORMATION
- CHAPTER 2 DEBUG MONITOR DESCRIPTION
- CHAPTER 3 DEBUG MONITOR COMMANDS
- CHAPTER 4 ASSEMBLER/DISASSEMBLER
- CHAPTER 5 SYSTEM CALLS
- CHAPTER 6 DIAGNOSTIC FIRMWARE GUIDE
- APPENDIX A S-RECORD INFORMATION
- APPENDIX B SELF-TEST ERROR MESSAGES
- APPENDIX C USER CUSTOMIZATION
- LIST OF FIGURES
- LIST OF TABLES
- Table 2-1. Debugger Address Parameter Format
- Table 2-2. CPU32Bug Exception Vectors
- Table 3-1. Debug Monitor Commands
- Table 4-1. CPU32Bug Assembler Addressing Modes
- Table 5-1. CPU32Bug System Call Routines
- Table 6-1. MCU CPU Diagnostic Tests
- Table 6-2. Memory Diagnostic Tests
- Table B-1. Self-Test Error Messages
- Table C-1. CPU32Bug Customization Area
- Table C-2. MCU SCI Communication Formats
- Table C-3. Rev. A Chip Selection Summary
- Table C-4. Rev. B Chip Selection Summary
- Table C-5. BCC Rev. C Chip Selection Summary
- Table C-6. PFB Rev. C Compatibility
- CHAPTER 1 GENERAL INFORMATION
- CHAPTER 2 DEBUG MONITOR DESCRIPTION
- CHAPTER 3 DEBUG MONITOR COMMANDS
- 3.1 INTRODUCTION
- 3.2 BLOCK OF MEMORY COMPARE
- 3.3 BLOCK OF MEMORY FILL
- 3.4 BLOCK OF MEMORY MOVE
- 3.5 BREAKPOINT INSERT/DELETE
- 3.6 BLOCK OF MEMORY SEARCH
- 3.7 BLOCK OF MEMORY VERIFY
- 3.8 DATA CONVERSION
- 3.9 DUMP S-RECORDS
- 3.10 GO DIRECT (IGNORE BREAKPOINTS)
- 3.11 GO TO NEXT INSTRUCTION
- 3.12 GO EXECUTE USER PROGRAM
- 3.13 GO TO TEMPORARY BREAKPOINT
- 3.14 HELP
- 3.15 LOAD S-RECORDS FROM HOST
- 3.16 MACRO DEFINE/DISPLAY/DELETE
- 3.17 MACRO EDIT
- 3.18 MACRO EXPANSION LISTING ENABLE/DISABLE
- 3.19 MEMORY DISPLAY
- 3.20 MEMORY MODIFY
- 3.21 MEMORY SET
- 3.22 OFFSET REGISTERS DISPLAY/MODIFY
- 3.23 PRINTER ATTACH/DETACH
- 3.24 PORT FORMAT
- 3.25 REGISTER DISPLAY
- 3.26 COLD/WARM RESET
- 3.27 REGISTER MODIFY
- 3.28 REGISTER SET
- 3.29 SWITCH DIRECTORIES
- 3.30 TRACE
- 3.31 TRACE ON CHANGE OF CONTROL FLOW
- 3.32 TRANSPARENT MODE
- 3.33 TRACE TO TEMPORARY BREAKPOINT
- 3.34 VERIFY S-RECORDS AGAINST MEMORY
- CHAPTER 4 ASSEMBLER/DISASSEMBLER
- CHAPTER 5 SYSTEM CALLS
- 5.1 INTRODUCTION
- 5.2 SYSTEM CALL ROUTINES
- 5.2.1 Calculate BCD Equivalent Specified Binary Number
- 5.2.2 Parse Value, Assign to Variable
- 5.2.3 Check for Break
- 5.2.4 Timer Delay Function
- 5.2.5 Unsigned 32 x 32 Bit Divide
- 5.2.6 Erase Line
- 5.2.7 Input Character Routine
- 5.2.8 Input Line Routine
- 5.2.9 Input Serial Port Status
- 5.2.10 Unsigned 32 x 32 Bit Multiply
- 5.2.11 Output Character Routine
- 5.2.12 Output String Using Pointers
- 5.2.13 Print Carriage Return and Line Feed
- 5.2.14 Read Line to Fixed-Length Buffer
- 5.2.15 Read String Into Variable-Length Buffer
- 5.2.16 Return to CPU32Bug
- 5.2.17 Send Break
- 5.2.18 Compare Two Strings
- 5.2.19 Timer Initialization
- 5.2.20 Read Timer
- 5.2.21 Start Timer at T=0
- 5.2.22 Output String with Data
- 5.2.23 Output String Using Character Count
- CHAPTER 6 DIAGNOSTIC FIRMWARE GUIDE
- 6.1 INTRODUCTION
- 6.2 DIAGNOSTIC MONITOR
- 6.2.1 Monitor Start-Up
- 6.2.2 Command Entry and Directories
- 6.2.3 Help (HE)
- 6.2.4 Self Test (ST)
- 6.2.5 Switch Directories (SD)
- 6.2.6 Loop-On-Error Mode (LE)
- 6.2.7 Stop-On-Error Mode (SE)
- 6.2.8 Loop-Continue Mode (LC)
- 6.2.9 Non-Verbose Mode (NV)
- 6.2.10 Display Error Counters (DE)
- 6.2.11 Clear (Zero) Error Counters (ZE)
- 6.2.12 Display Pass Count (DP)
- 6.2.13 Zero Pass Count (ZP)
- 6.3 UTILITIES
- 6.4 CPU TESTS FOR THE MCU
- 6.5 MEMORY TESTS (MT)
- 6.6 BUS ERROR TEST
- APPENDIX A S-RECORD INFORMATION
- APPENDIX B SELF-TEST ERROR MESSAGES
- APPENDIX C USER CUSTOMIZATION
SYSTEM CALLS
M68CPU32BUG/D REV 1 5-28
.WRITD Output String with Data ..WRITD
.WRITDLN .WRITDLN
EXAMPLE
The following section of code .....
ERRMESSG DC.B $15,’ERROR CODE = ’,’|10,8Z|’
MOVE.L #3,-(A5)
Push error code on data stack
PEA (A5)
Push data stack location
PEA ERRMESSG(PC)
Push address of string
SYSCALL .WRITDLN
Invoke function
TST.L (A5)+
De-allocate data from data stack
. . . . . prints this message:
ERROR CODE = 3
NOTE
The string must be formatted such that the first byte (the byte
pointed to by the passed address) contains the byte count of the
string, including the data field specifiers (pointer/count format –
see 5.1.2).
Format data fields within the string as follows:
'|<radix>,<fieldwidth>[Z]|' where <radix> is the data's numerical
base (in hexadecimal, i.e., ''A'' is base 10, ''10'' is base 16, etc.) and
<fieldwidth> is the number of data characters to output. The data is
right-justified and left-most characters are truncated to size.
Include ''Z'' to suppress leading zeros in the output.
All data is placed in the stack as longwords. Each time a data field
is encountered in the user string, a longword is displayed from the
data stack.
The data stack is not destroyed by this routine. Use the call routine
(see example above) to de-allocate space in the data stack. If it is
necessary for the space in the data stack to be de-allocated, it must
be done using the call routine, as shown in the above example.
SYSTEM CALLS
M68CPU32BUG/D REV 1 5-29
.WRITE Output String Using Character Count .WRITE
.WRITELN .WRITELN
5.2.23 Output String Using Character Count
SYSCALL .WRITE – Output string
TRAP CODE: $0023
SYSCALL .WRITELN – Output string and <CR><LF>
TRAP CODE: $0024
.WRITE and .WRITELN format character strings with a count byte and output the string to the
default output port. After formatting, the count byte is the first byte in the string. The user passes
the starting address of the string. .WRITELN appends a <CR><LF> to the end of the string.
Entry Conditions:
Four bytes of parameters are positioned in the stack as follows:
SP ==> Address of string.<long>
Exit Conditions:
SP ==> Top of stack (parameter bytes removed)
EXAMPLE
MESSAGE1 DC.B 9,
"MOTOROLA "
MESSAGE2 DC.B 8,
"QUALITY!"
PEA MESSAGE1(PC)
Push address of string
SYSCALL .WRITE
Use TRAP #15 macro
PEA MESSAGE2(PC) Push address of other string
SYSCALL .WRITE Invoke function again
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eescale S
emiconduct
or
, I
Freescale Semiconductor, Inc.
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