Motorola MVME2400 Series Manuel de service Page 152
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- Table des matières
- DEPANNAGE
- MARQUE LIVRES
Noté. / 5. Basé sur avis des utilisateurs
Solving Startup Problems
D-2 Computer Group Literature Center Web Site
D
II. There is a display
on the terminal,
but input from the
keyboard and/or
mouse has no
effect.
A. The keyboard or
mouse may be
connected
incorrectly.
Recheck the keyboard and/or mouse connections and power.
B. Board jumpers
may be configured
incorrectly.
Check the board jumpers per this manual.
C. You may have
invoked flow
control by pressing
a
HOLD or PAUSE
key, or by typing:
<CTRL>-S
Press the HOLD or PAUSE key again.
If this does not free up the keyboard, type in:
<CTRL>-Q
III. Debug prompt
PPC1-Bug> does
not appear at
powerup, and the
board does not
autoboot.
A. Debugger Flash
may be missing
1. Disconnect all power from your system.
2. Check that the proper debugger devices are installedl.
3. Reconnect power.
4. Restart the system by “double-button reset”: press the
RST and
ABT switches at the same time; release RST first, wait seven
seconds, then release
ABT.
5. If the debug prompt appears, go to step IV or step V, as indicated.
If the debug prompt does not appear, go to step VI.
B. The board may
need to be reset.
IV. Debug prompt
PPC1-Bug>
appears at
powerup, but the
board does not
autoboot.
A. The initial
debugger
environment
parameters may be
set incorrectly.
1. Start the onboard calendar clock and timer. Type:
set mmddyyhhmm <CR>
where the characters indicate the month, day, year, hour, and
minute. The date and time will be displayed.
!
Caution
Performing the next step (env;d)
will change some parameters that
may affect your system’s
operation.
(continues>)
B. There may be some
fault in the board
hardware.
Table D-1. Troubleshooting MVME240x Modules (Continued)
Condition Possible Problem Try This:
- MVME2400-Series 1
- Single Board Computer 1
- Installation and Use 1
- Restricted Rights Legend 2
- Document Terminology 4
- Safety Summary 5
- Safety Depends On You 5
- Contents 9
- Glossary 12
- List of Figures 13
- List of Tables 15
- 1Preparing and Installing the 17
- MVME2400-Series Module 17
- MVME240x Module 18
- PMCspan Expansion Mezzanine 19
- PCI Mezzanine Cards (PMCs) 19
- VMEsystem Enclosure 20
- System Console Terminal 20
- 1 2 3 4 5 6 7 8 25
- ESD Precautions 29
- 2064 9708 31
- Primary PMCspan 32
- 2081 9708 33
- Secondary PMCspan 34
- 2065 9708 35
- INTERRUPT ACKNOWLEDGE 38
- DEBUG port on 38
- Installation Considerations 39
- 2Operating Instructions 41
- Switches 42
- MVME240x 43
- Status Indicators 44
- 10/100 BASET Port 44
- DEBUG Port 45
- Operating Instructions 46
- PMC Slots 47
- 3Functional Description 49
- (RST) and Abort (ABT) 50
- General Description 52
- Block Diagram 52
- (PHB) ASIC 55
- PCI Bus Latency 56
- 3:1 clock ratio: 56
- PPC Bus Latency 58
- Assumptions 60
- SDRAM Memory 62
- Functional Description 66
- Flash Memory 67
- Ethernet Interface 70
- VMEbus Interface 73
- Asynchronous Debug Port 73
- PCI Host Bridge (PHB) 75
- Interrupt Controller (MPIC) 76
- Programmable Timers 76
- 4Programming the MVME240x 79
- Processor Bus Memory Map 80
- PCI Local Bus Memory Map 81
- VMEbus Memory Map 81
- Programming Considerations 82
- Interrupt Handling 84
- DMA Channels 86
- Sources of Reset 86
- Endian Issues 88
- Programming the MVME240x 90
- PPCBug Overview 91
- PPCBug Basics 91
- Diag> 92
- Memory Requirements 93
- PPCBug Implementation 93
- Debugger Commands 96
- Table 5-1. Debugger Commands 97
- Diagnostic Tests 100
- Using PPCBug 101
- 6Modifying the Environment 103
- Modifying the Environment 104
- ENV - Set Environment 105
- ∗ signal after 107
- ∗ signal during board 107
- 00001000? 111
- (Default) 112
- Ordering Related 119
- Documentation 119
- Manufacturers’ Documents 120
- Document Title and Source 121
- Publication 121
- Related Specifications 123
- Specifications 127
- Table B-1. MVME240 128
- Specifications (Continued) 128
- Cooling Requirements 129
- EMC Regulatory Compliance 130
- CConnector Pin Assignments 131
- VMEbus Connector - P1 132
- Connector Pin Assignments 133
- VMEbus Connector - P2 134
- Pin Assignments 136
- CPU Debug Connector - J1 137
- PCI Expansion Connector - J6 142
- DTroubleshooting the MVME240x 151
- Solving Startup Problems 152
- Troubleshooting the MVME240x 153
- Numerics 169
- Single Board Computer 177
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