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will not boot from DiskOn-
Chip
DiskOnChip is not the only
hard drive in system
disable other hard drive(s) in system or use
M-Systems DUPDATE utility with /
FIRST option.
using wrong DiskOnChip de-
vice (not 32 pin)
change to correct (32 pin) DiskOnChip
Fail Safe Boot ROM enabled
Disable Fail Safe Boot
Boot device not set to Hard
disk
run Setup and set boot device to Hard
Drive
erratic operation
excessive bus loading
reduce number of PC/104 modules in
stack;
remove termination components from bus
signals
power supply noise
examine power supply output with oscillo-
scope; glitches below 4.75Vdc will trigger
a reset; add bypass caps
power supply limiting
examine power supply output with oscillo-
scope; check for voltage drop below 4.75V
when hard drive or floppy drive starts; add
bypass caps
temperature too high
add fan, processor heatsink, or other cool-
ing device(s)
See 486DX100/66 Processor Thermal
Management on page 106.
memory address conflict
check for two hardware devices (e.g.
Ethernet, SSD, Arcnet, PCMCIA) trying
to use the same memory address
check for two software devices (e.g.
EMM386, PCMCIA drivers, etc.) trying to
use the same memory addresses
check for hardware and software devices
trying to use the same memory address
check for an address range shadowed (see
Advanced Setup screen) while in use by
another hardware or software device
I/O address conflict
check for another module trying to use I/O
addresses reserved for the cpuModule be-
tween 010h and 01Fh
check for two modules (e.g. dataModules,
PCMCIA cards, Ethernet) trying to use the
same I/O addresses
Will not enter Virtual De-
vices mode
correct pins not jumpered
jumper pins 7&8 (RI and DTR) of first or
second serial port
Содержание CMV6486DX100HR
Страница 2: ......
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Страница 28: ...28 I O Connections...
Страница 46: ...46...
Страница 48: ...48 Configuring Hardware...
Страница 74: ...74 An example BASIC program illustrating EEPROM access is in the file CMV_EE BAS on the cpu Module utility disk...
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Страница 116: ...116...
Страница 118: ...118 RTD Embedded Technologies Inc 103 Innovation Blvd State College PA 16803 0906 USA Our website www rtd com...