Motorola M68CPU32BUG Manuel d'utilisateur Page 75
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DIAGNOSTIC FIRMWARE GUIDE
M68CPU32BUG/D REV 1 6-8
CPU B Instruction Test CPU B
6.4.2 Instruction Test
CPU32Diag>CPU B
CPU B tests various data movement, integer arithmetic, logical, shift and rotate, and bit
manipulation instructions of the MCU device.
EXAMPLE
After the command has been issued, the following line is printed:
B CPU Instruction Test ..............Running ---------->
If any part of the test fails, then the display appears as follows.
B CPU Instruction Test...............Running ---------->..... FAILED
(error message)
Here, (error message) is one of the following:
Failed AND/OR/NOT/EOR instruction check
Failed DBF instruction check
Failed ADD or SUB instruction check
Failed MULU or DIVU instruction check
Failed BSET or BCLR instruction check
Failed LSR instruction check
Failed LSL instruction check
If all parts of the test are completed correctly, then the test passes.
B CPU Instruction Test...............Running ----------> PASSED
DIAGNOSTIC FIRMWARE GUIDE
M68CPU32BUG/D REV 1 6-5
6.3.2 Read Loop
RL.<SIZE> [<ADDR> [<DEL><DATA>]]
The RL command executes a streamlined read of specified size from a specified memory
location. This command is intended as a debugging aid once specific fault areas are identified.
The read loop is very short in execution so measuring devices such as oscilloscopes may be
utilized in tracking failures. Pressing the BREAK key does not terminate this command, but
pressing the ABORT switch or RESET switch does.
Command size must be specified as B for byte, W for word, or L for longword.
The command requires one parameter: target address. The address is a hexadecimal value. To
read from address $10000, enter RL.B 10000. The system prompts the user if the parameter is
omitted.
EXAMPLES
CPU32Diag>RL.B<CR> Prompts for address from which to read byte value
CPU32Diag>RL.W A000<CR> Read longword at $A000
6.3.3 Write/Read Loop
WR.<SIZE> [<ADDR> [<DEL><DATA>]]
The WR command executes a streamlined write and read of specified size to a specified memory
location. This command is intended as a debugging aid once specific fault areas are identified.
The write/read loop is very short in execution so measuring devices such as oscilloscopes may be
utilized in tracking failures. Pressing the BREAK key does not terminate this command, but
pressing the ABORT switch or RESET switch does.
Command size must be specified as B for byte, W for word, or L for longword.
The command requires two parameters: target address and data to be written. The address and
data are both hexadecimal values and must not be preceded by a $. To write $00 out to address
$10000 and read back, enter WR.B 10000 00. The system prompts the user if either or both
parameters are omitted.
EXAMPLE
CPU32Diag>WR.W 8000 FFFFFFFF<CR> Writes longword $FFFFFFFF to location $8000 and
reads it back
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- M68CPU32BUG DEBUG MONITOR 1
- USER’S MANUAL 1
- M68CPU32BUG/D 1
- TABLE OF CONTENTS 2
- LIST OF FIGURES 3
- LIST OF TABLES 3
- 1.5 SYSTEM RESTART 5
- CHAPTER 1 5
- GENERAL INFORMATION 5
- 1.1 INTRODUCTION 5
- 1.2 GENERAL DESCRIPTION 5
- 1.3 USING THIS MANUAL 6
- 1.6 MEMORY REQUIREMENTS 7
- CHAPTER 2 9
- DEBUG MONITOR DESCRIPTION 9
- 2.1 INTRODUCTION 9
- Freescale Semiconductor, Inc 10
- 2.6 FUNCTION CODE SUPPORT 13
- CHAPTER 3 16
- DEBUG MONITOR COMMANDS 16
- 3.1 INTRODUCTION 16
- BC Block of Memory Compare BC 17
- BF Block of Memory Fill BF 17
- BS Block of Memory Search BS 19
- BM Block of Memory Move BM 19
- BR Breakpoint Insert BR 20
- BV Block of Memory Verify BV 21
- DU Dump S-Records DU 23
- DC Data Conversion DC 23
- GN Go To Next Instruction GN 25
- GO Go Execute User Program GO 27
- HE Help HE 29
- MA Macro Define/Display MA 31
- MAE Macro Edit MAE 33
- MM Memory Modify MM 35
- MD Memory Display MD 36
- MS Memory Set MS 38
- PF Port Format PF 39
- PA Printer Attached PA 40
- RD Register Display RD 41
- RS Register Set RS 43
- RESET Cold/Warm Reset RESET 44
- RM Register Modify RM 44
- T Trace T 45
- SD Switch Directories SD 45
- TM Transparent Mode TM 48
- 4.2SOURCE PROGRAM CODING 51
- CHAPTER 4 52
- ASSEMBLER/DISASSEMBLER 52
- 4.1 INTRODUCTION 52
- 5.2 SYSTEM CALL ROUTINES 57
- CHAPTER 5 58
- SYSTEM CALLS 58
- 5.1 INTRODUCTION 58
- .ERASLN Erase Line .ERASLN 61
- .OUTSTR .OUTSTR 66
- .SNDBRK Send Break .SNDBRK 68
- .TM_RD Read Timer .TM_RD 70
- .WRITELN .WRITELN 71
- .WRITDLN .WRITDLN 71
- 6.3 UTILITIES 73
- CHAPTER 6 73
- DIAGNOSTIC FIRMWARE GUIDE 73
- 6.1 INTRODUCTION 73
- 6.2 DIAGNOSTIC MONITOR 73
- CPU B Instruction Test CPU B 75
- CPU CPU Tests For The MCU CPU 76
- CPU A Register Test CPU A 76
- CPU C Address Mode Test CPU C 77
- MT Memory Tests MT 78
- MT D Set Bus Data Width MT D 79
- MT A Set Function Code MT A 79
- MT B Set Start Address MT B 80
- MT C Set Stop Address MT C 80
- MT H Random Byte Test MT H 81
- MT E March Address Test MT E 81
- MT F Walk a Bit Test MT F 82
- MT G Refresh Test MT G 82
- MT I Program Test MT I 83
- MT J Test and Set Test MT J 84
- BERR Bus Error Test BERR 84
- APPENDIX A 85
- S-RECORD INFORMATION 85
- A.1 INTRODUCTION 85
- A.2 S-RECORD CONTENT 85
- A.3 S-RECORD TYPES 86
- A.4 S-RECORDS CREATION 86
- C.2 CPU32BUG CUSTOMIZATION 87
- APPENDIX B 87
- SELF-TEST ERROR MESSAGES 87
- B.1 INTRODUCTION 87
- APPENDIX C 88
- USER CUSTOMIZATION 88
- C.1 INTRODUCTION 88
- C.3 CUSTOMIZATION TABLE 90
- C.4 COMMUNICATION FORMATS 93
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