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
DEBUG MONITOR COMMANDS
M68CPU32BUG/D REV 1 3-20
GD Go Direct (Ignore Breakpoints) GD
To exit target code, press ABORT pushbutton.
Exception: Abort
PC =0000400E SR =2711=TR:OFF_S_7_X...C VBR =00000000
SFC =0=F0 DFC =0=F0 USP =0000FC00 SSP* =0000FF50
D0 =00052A9C D1 =00000000 D2 =000000FF D3 =00000000
D4 =00000000 D5 =00000000 D6 =00000000 D7 =00000000
A0 =00005000 A1 =00000000 A2 =00000000 A3 =00000000
A4 =00000000 A5 =00000400 A6 =00000000 A7 =0000FF50
0000400E 60FE BRA.B $400E
CPU32Bug>
Set PC to start of program and restart target code:
CPU32Bug>RM PC<CR>
PC =0000400E ? 4000.<CR>
CPU32Bug>GD<CR>
Effective address: 00004000
DEBUG MONITOR COMMANDS
M68CPU32BUG/D REV 1 3-21
GN Go To Next Instruction GN
3.11 GO TO NEXT INSTRUCTION
GN
Use the GN command to set a temporary breakpoint at the next instruction’s address, that is, the
one following the current instruction. GN then starts target code execution. After setting the
temporary breakpoint, the sequence of events is similar to that of the GO command. If there is
already a breakpoint at the tempory breakpoint location, the breakpoint must have a count less
than or equal to one or an error occurs.
GN is helpful when debugging modular code, because it allows the user to trace through a
subroutine call as if it were a single instruction.
EXAMPLE The following section of code resides at $6000.
CPU32Bug>MD 6000:4;DI<CR>
00006000 7003 MOVE.L #$3,D0
00006002 7201 MOVEQ.L #$1,D1
00006004 61000FFA BSR.W $7000
00006008 2600 MOVE.L D0,D3
CPU32Bug>
The following simple subroutine resides at address $7000.
CPU32Bug>MD 7000:2;DI<CR>
00007000 D081 ADD.L D1,D0
00007002 4E75 RTS
CPU32Bug>
Execute up to the BSR instruction.
CPU32Bug>RM PC<CR>
PC =00003000 ? 6000.<CR>
CPU32Bug>GT 6004<CR>
Effective address: 00006004
Tempory breakpoint at $6004.
Effective address: 00006000 Current PC at $6000.
At Breakpoint
PC =00006004 SR =2700=TR:OFF_S_7 VBR =00000000
SFC =0=F0 DFC =0=F0 USP =00003830 SSP* =00010000
D0 =00000003 D1 =00000001 D2 =00000000 D3 =00000000
D4 =00000000 D5 =00000000 D6 =00000000 D7 =00000000
A0 =00000000 A1 =00000000 A2 =00000000 A3 =00000000
A4 =00000000 A5 =00000000 A6 =00000000 A7 =00010000
00006004 61000FFA BSR.W $7000
CPU32Bug>
Fr
eescale S
emiconduct
or
, I
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
nc...