Motorola ColdFire MCF5282 User Manual Page 51
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Chapter 3. Using the Monitor/Debug Firmware 3-9
PRELIMINARY—SUBJECT TO CHANGE WITHOUT NOTICE
Commands
BF Block Fill
Usage:BF<width> begin end data <inc>
The BF command fills a contiguous block of memory starting at address begin, stopping at address
end, with the value data. <Width> modifies the size of the data that is written. If no <width> is
specified, the default of word sized data is used.
The value for addresses begin and end may be an absolute address specified as a hexadecimal
value, or a symbol name. The value for data may be a symbol name, or a number converted
according to the user-defined radix, normally hexadecimal.
The optional value <inc> can be used to increment (or decrement) the data value during the fill.
This command first aligns the starting address for the data access size, and then increments the
address accordingly during the operation. Thus, for the duration of the operation, this command
performs properly-aligned memory accesses.
Examples:
To fill a memory block starting at 0x00020000 and ending at 0x00040000 with the value 0x1234,
the command is:
bf 20000 40000 1234
To fill a block of memory starting at 0x00020000 and ending at 0x0004000 with a byte value of
0xAB, the command is:
bf.b 20000 40000 AB
To zero out the BSS section of the target code (defined by the symbols bss_start and bss_end), the
command is:
bf bss_start bss_end 0
To fill a block of memory starting at 0x00020000 and ending at 0x00040000 with data that
increments by 2 for each <width>, the command is:
bf 20000 40000 0 2
- M5282EVB User's Manual 1
- Contents 5
- MOTOROLA Tables v 9
- ILLUSTRATIONS 11
- Chapter 1 13
- 1-2 M5282EVB User’s Manual 14
- 1.1 MCF5282 Microprocessor 15
- 1-4 M5282EVB User’s Manual 16
- MCF5282 Microprocessor 16
- Chapter 1. M5282EVB 1-5 17
- 1.2 System Memory 18
- 1.2.6 M5282EVB Memory Map 19
- 1.3 Support Logic 20
- Chapter 1. M5282EVB 1-9 21
- Support Logic 21
- 1.3.2 Clock Circuitry 22
- 1.3.3 Watchdog Timer 22
- 1.3.4 Exception Sources 23
- 1.3.5 TA Generation 23
- 1.4 Communication Ports 24
- 1.4.2 FlexCAN 2.0 B Port 25
- 1.4.3 10/100T Ethernet Port 26
- 1.4.4 BDM/JTAG Port 26
- 1.4.5 I 27
- 1.4.6 QSPI 28
- 1.5.1 Expansion Connectors 28
- Table 1-18. J6 29
- Table 1-19. J7 29
- Table 1-17. J5 29
- Table 1-20. J2 30
- 1.5.3 Reset Switch (S2) 31
- 1.5.4 User LEDs 32
- 1.5.5 Other LEDs 32
- 1.7 Software Development 33
- 1-22 M5282EVB User’s Manual 34
- Software Development 34
- 2.1 System Configuration 35
- 6 - 12 V 36
- Input Power 36
- RS-232 Terminal 36
- 2.2 Installation and Setup 37
- 2-4 M5282EVB User’s Manual 38
- Installation and Setup 38
- Figure 2-3. Jumper Locations 40
- 2.4 Using The BDM Port 41
- 2-8 M5282EVB User’s Manual 42
- Using The BDM Port 42
- Chapter 3 43
- 3.2 Operational Procedure 44
- 3.2.2 System Initialization 45
- 3.3 Command Line Usage 46
- 3.4 Commands 47
- 3-6 M5282EVB User’s Manual 48
- Commands 48
- ASM Assembler 49
- BC Block Compare 50
- BF Block Fill 51
- BM Block Move 52
- BR Breakpoints 53
- BS Block Search 54
- DC Data Conversion 55
- DI Disassemble 56
- DL Download Console 57
- DN Download Network 58
- GO Execute 59
- GT Execute To 60
- IRD Internal Register Display 61
- IRM Internal Register Modify 62
- HELP Help 63
- LR Loop Read 64
- LW Loop Write 65
- MD Memory Display 66
- MM Memory Modify 67
- MMAP Memory Map Display 68
- RD Register Display 69
- RM Register Modify 70
- SET Set Configurations 72
- SHOW Show Configurations 73
- STEP Step Over 74
- SYMBOL Symbol Name Management 75
- TRACE Trace Into 76
- UPDBUG Update dBUG 77
- UPUSER Update User Flash 78
- 3.5 TRAP #15 Functions 79
- 3.5.2 IN_CHAR 80
- 3.5.3 CHAR_PRESENT 80
- 3.5.4 EXIT_TO_dBUG 81
- 3-40 M5282EVB User’s Manual 82
- TRAP #15 Functions 82
- Appendix A 83
- Configuring dBUG for Network 83
- Downloads 83
- Appendix B 87
- Schematics 87
- Fire®Cold MCF5282 88
- Evaluation Board - M5282EVB 88
- CAN Bus Connector 89
- - 9 way D-type (Female) 89
- Cold Fire® 90
- SDRAM Upper 16-bit Word 99
- SDRAM Lower 16-bit Word 99
- RS232 Transceiver 100
- NOT POPULATED AT ASSEMBLY 100
- Appendix C 101
- Evaluation Board BOM 101
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