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Chapter 3. Using the Monitor/Debug Firmware 3-1
D:\TECD-SPO\Documentation\MPC564EVB\mpc564evb_3_Firmware_V1.fm 4/1/03
Chapter 3
Using the Monitor/Debug Firmware
The MPC564EVB single board computer has a resident firmware package that provides a
self-contained programming and operating environment. The firmware, named dBUG, provides
the user with monitor/debug interface, inline assembler and disassembly, program download,
register and memory manipulation, and I/O control functions. This chapter is a how-to-use
description of the dBUG package, including the user interface and command structure.
3.1 What Is dBUG?
dBUG is a traditional ROM monitor/debugger that offers a comfortable and intuitive command
line interface that can be used to download and execute code. It contains all the primary features
needed in a debugger to create a useful debugging environment.
The firmware (stored in the upper 1MByte of the Flash ROM device) provides a self-contained
programming and operating environment. dBUG interacts with the user through pre-defined
commands that are entered via the terminal. These commands are defined in Section 3.4,
“Commands”.
The user interface to dBUG is the command line. A number of features have been implemented to
achieve an easy and intuitive command line interface.
dBUG assumes that an 80x24 character dumb-terminal is utilized to connect to the debugger. For
serial communications, dBUG requires eight data bits, no parity, and one stop bit, 8N1 with no flow
control. The default baud rate is 19200 but can be changed after the power-up.
The command line prompt is “dBUG> “. Any dBUG command may be entered from this prompt.
dBUG does not allow command lines to exceed 80 characters. Wherever possible, dBUG displays
data in 80 columns or less. dBUG echoes each character as it is typed, eliminating the need for any
“local echo” on the terminal side.
In general, dBUG is not case sensitive. Commands may be entered either in upper or lower case,
depending upon the user’s equipment and preference. Only symbol names require that the exact
case be used.
Frees
cale Semiconductor,
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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- MPC564EVB User’s Manual 1
- Cautionary Notes 4
- Contents 10
- Chapter 1 11
- Freescale Semiconductor, Inc 12
- 1.1 Processor 13
- 512 Kbytes 14
- 1.2.5 MPC564EVB Memory Map 15
- 1.2.2 SRAM 15
- 1.2.3 Internal SRAM 15
- 1.2.4 Internal Flash 15
- 1.3 Support Logic 18
- 1.3.4 Exception Sources 19
- 1.3.5 TA Generation 19
- 1.3.6 User’s Program 19
- MPC564 signal 20
- 1.4.2 CAN PORTs and Options 22
- 1.4.3 10/100T Ethernet Port 24
- MPC564 I/O SIGNAL 29
- 1.5.3 User Components 31
- 1.6 Reference Documents 38
- 1.7 Software Development 38
- 2.1 System Configuration 39
- 6 - 26 V 40
- Input Power 40
- RS-232 Terminal 40
- 2.2 Installation And Setup 41
- Power Port Connections 42
- +VIN DC supply 42
- GND +VIN VIGN 43
- (CONFIG_SW) 46
- Chapter 3 51
- 3.2 Operational Procedure 52
- 3.2.2 System Initialization 54
- 3.3 Command Line Usage 56
- 3.4 Commands 56
- ASM Assembler 58
- BC Block Compare 59
- BF Block Fill 60
- BM Block Move 61
- BR Breakpoints 62
- BS Block Search 63
- DC Data Conversion 64
- DI Disassemble 65
- DL Download Console 66
- DLDBUG Download dBUG 67
- DN Download Network 68
- FL Erase/Program Flash 69
- GO Execute 70
- GT Execute To 71
- HELP Help 72
- IRD Internal Register Display 73
- IRM Internal Register Modify 74
- LR Loop Read 75
- LW Loop Write 76
- MD Memory Display 77
- MM Memory Modify 78
- MMAP Memory Map Display 79
- RD Register Display 80
- RM Register Modify 81
- SET Set Configurations 83
- SHOW Show Configurations 84
- STEP Step Over 85
- SYMBOL Symbol Name Management 86
- TRACE Trace Into 87
- 3.5 System Call Functions 89
- 3.5.3 IN_STAT 90
- 3.5.4 ISR_REGISTER 90
- 3.5.5 ISR_REMOVE 90
- 3.5.6 EXIT_TO_dBUG 91
- Appendix A 93
- Appendix B 95
- Configuring dBUG for Network 95
- Downloads 95
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