Freescale Semiconductor M68HC12A4EVB User manual

M68HC12A4EVB
EVALUATION BOARD
USER’S MANUAL
M68HC12A4EVBUM/D
October 1999
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Important Notice to Users
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Motorola further assumes no liability arising out of the application or use of any
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merchantability or fitness for a particular purpose. Motorola makes no
representation that the interconnection of products in the manner described
herein will not infringe on existing or future patent rights, nor do the
descriptions contained herein imply the granting or license to make, use or sell
equipment constructed in accordance with this description.
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© Motorola, Inc., 1999; All Rights Reserved
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M68HC12A4EVB Evaluation Board — Rev. 1 User’s Manual
MOTOROLA List of Sections 3
User’s Manual — M68HC12A4EVB Evaluation Board
List of Sections
Section 1. General Information . . . . . . . . . . . . . . . . . . . .15
Section 2. Configuration and Setup . . . . . . . . . . . . . . . .27
Section 3. Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
Section 4. Hardware Reference . . . . . . . . . . . . . . . . . . . .77
Appendix A. S-Record Format. . . . . . . . . . . . . . . . . . . .117
Appendix B. Communications Program Examples . . .123
Appendix C. D-Bug12 Startup Code . . . . . . . . . . . . . . .131
Appendix D. D-Bug12 Customization Data. . . . . . . . . .135
Appendix E. Customizing the EPROMs . . . . . . . . . . . .141
Appendix F. SDI Configuration . . . . . . . . . . . . . . . . . . .143
Glossary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .145
Index. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .149
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User’s Manual M68HC12A4EVB Evaluation Board — Rev. 1
4 List of Sections MOTOROLA
List of Sections
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M68HC12A4EVB Evaluation Board — Rev. 1 User’s Manual
MOTOROLA Table of Contents 5
User’s Manual — M68HC12A4EVB Evaluation Board
Table of Contents
Section 1. General Information
1.1 Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
1.2 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
1.3 General Description and Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
1.4 Performance Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
1.5 Functional Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
1.6 External Equipment Requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . 22
1.7 EVB Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
1.8 Typographic Conventions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
1.9 Customer Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Section 2. Configuration and Setup
2.1 Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
2.2 Unpacking and Preparation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
2.3 EVB Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
2.4 EVB to Power Supply Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
2.5 EVB to Terminal Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
2.6 Terminal Communications Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
2.6.1 Communication Parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
2.6.2 Dumb-Terminal Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
2.6.3 Host-Computer Setup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
2.6.4 Changing the Baud Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
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User’s Manual M68HC12A4EVB Evaluation Board — Rev. 1
6 Table of Contents MOTOROLA
Table of Contents
2.7 Using Fast External RAM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
2.7.1 Selecting and Replacing the RAM Chips . . . . . . . . . . . . . . . . . . . 32
2.7.2 Reprogramming the RAM Chip Select . . . . . . . . . . . . . . . . . . . . . 33
Section 3. Operation
3.1 Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
3.2 Startup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
3.3 Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
3.4 Program Abort . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
3.5 Using D-Bug12 Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
3.6 D-Bug12 Command Set . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
ASM Assemble Instructions . . . . . . . . . . . . . . . . . . . . . 44
BAUD Set Baud Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
BF Block Fill. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
BR Breakpoint Set . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
BULK Bulk Erase On-Chip EEPROM . . . . . . . . . . . . . . 51
CALL Call Subroutine . . . . . . . . . . . . . . . . . . . . . . . . . . 52
G Go Execute a User Program . . . . . . . . . . . . . . . . 53
GT Go Till . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
HELP Onscreen Help Summary. . . . . . . . . . . . . . . . . . . 55
LOAD Load S-Record File . . . . . . . . . . . . . . . . . . . . . . . 56
MD Memory Display . . . . . . . . . . . . . . . . . . . . . . . . . 57
MDW Display Memory as 16-Bit Word . . . . . . . . . . . . 58
MM Memory Modify. . . . . . . . . . . . . . . . . . . . . . . . . . 59
MMW Modify 16-Bit Memory Word. . . . . . . . . . . . . . . 60
MOVE Move Memory Block. . . . . . . . . . . . . . . . . . . . . . 61
NOBR Remove Breakpoints . . . . . . . . . . . . . . . . . . . . . . 62
RD Register Display. . . . . . . . . . . . . . . . . . . . . . . . . . 63
RM Register Modify. . . . . . . . . . . . . . . . . . . . . . . . . . 64
T Trace . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
UPLOAD Display Memory in S-Record Format . . . . . . . . . 67
VERF Verify S-Record File Against Memory . . . . . . . . 68
<RegisterName> Modify Register Value . . . . . . . . . . . . . . . . . . . . 70
3.7 Alternate Execution from EEPROM . . . . . . . . . . . . . . . . . . . . . . . . . 72
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Table of Contents
M68HC12A4EVB Evaluation Board — Rev. 1 User’s Manual
MOTOROLA Table of Contents 7
3.8 Off-Board Code Generation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
3.9 Memory Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
3.9.1 Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
3.9.2 Memory Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
3.10 Operational Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
3.10.1 On-Chip RAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
3.10.2 SCI Port Usage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
3.10.3 Dedicated MCU Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
3.10.4 Terminal Communications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
Section 4. Hardware Reference
4.1 Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
4.2 Printed Circuit Board (PCB) Description. . . . . . . . . . . . . . . . . . . . . . 78
4.3 Configuration Headers and Jumper Settings. . . . . . . . . . . . . . . . . . . . 78
4.4 Power Input Circuitry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
4.5 Terminal Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
4.6 Microcontroller. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
4.7 Memory. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
4.7.1 Memory Types and Sockets. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
4.7.2 Chip Selects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
4.7.3 Glue Logic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
4.8 Clock Circuitry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
4.9 Phase-Locked Loop (PLL) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
4.10 Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
4.11 Low-Voltage Inhibit (LVI). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
4.12 Analog-to-Digital (A/D) Converter . . . . . . . . . . . . . . . . . . . . . . . . . . 91
4.13 Background Debug Mode (BDM) Interface. . . . . . . . . . . . . . . . . . . . 91
4.14 Prototype Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
4.15 MCU Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
4.16 Schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
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User’s Manual M68HC12A4EVB Evaluation Board — Rev. 1
8 Table of Contents MOTOROLA
Table of Contents
Appendix A. S-Record Format
A.1 Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
A.2 Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
A.3 S-Record Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
A.4 S-Record Types. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
A.5 S Record Creation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
A.6 S-Record Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
A.6.1 S0 Header Record . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
A.6.2 First S1 Record. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
A.6.3 S9 Termination Record . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
A.6.4 ASCII Characters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
Appendix B. Communications Program Examples
B.1 Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
B.2 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
B.3 Procomm for DOS — IBM PC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
B.3.1 Setup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
B.3.2 S-Record Transfers to EVB Memory. . . . . . . . . . . . . . . . . . . . . . 126
B.4 Kermit for DOS — IBM PC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126
B.4.1 Setup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126
B.4.2 S-Record Transfers to EVB Memory. . . . . . . . . . . . . . . . . . . . . . 127
B.5 Kermit — Sun Workstation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
B.5.1 Setup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
B.5.2 S-Record Transfers to EVB Memory. . . . . . . . . . . . . . . . . . . . . . 128
B.6 MacTerminal — Apple Macintosh. . . . . . . . . . . . . . . . . . . . . . . . . . 128
B.6.1 Setup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128
B.6.2 S-Record Transfers to EVB Memory. . . . . . . . . . . . . . . . . . . . . . 129
B.7 Red Ryder — Apple Macintosh . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
B.7.1 Setup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
B.7.2 S-Record Transfers to EVB Memory. . . . . . . . . . . . . . . . . . . . . . 130
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Table of Contents
M68HC12A4EVB Evaluation Board — Rev. 1 User’s Manual
MOTOROLA Table of Contents 9
Appendix C. D-Bug12 Startup Code
Appendix D. D-Bug12 Customization Data
D.1 Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
D.2 Customization Data Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
D.2.1 C Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136
D.2.2 Assembly Format. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136
D.2.3 Initial User CPU Register Values . . . . . . . . . . . . . . . . . . . . . . . . 136
D.2.4 SysClk Field. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137
D.2.5 IOBase Field . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137
D.2.6 SCIBaudRegVal Field . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137
D.2.7 EEBase and EESize Fields. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138
D.2.8 EEPROM Erase/Program Delay Function Pointer Field. . . . . . . 138
D.2.9 Auxiliary Command Table Entries . . . . . . . . . . . . . . . . . . . . . . . 138
Appendix E. Customizing the EPROMs
Appendix F. SDI Configuration
Glossary
Index
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User’s Manual M68HC12A4EVB Evaluation Board — Rev. 1
10 Table of Contents MOTOROLA
Table of Contents
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