Configuring the PPCBug Parameters
CNFG and ENV Commands
CPCI-6020 CompactPCI Single Board Computer Installation and Use (6806800A51C)
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The address where the network interface configuration parameters are to be saved/retained in
NVRAM; these parameters are the necessary parameters to perform an unattended network
boot. A typical offset might be $1000, but this value is application-specific. (Default =
$00001000)
Watchdog prior status ignored at Autoboot [Y/N] = Y?
Watchdog reset at board reset [Y/N] = N?
Watchdog shutdown at board reset [Y/N] = N?
Reset Ethernet chip after file transfer [Y/N] = N?
Data Loss
If you use the NIOT debugger command, these parameters need to be saved
somewhere in the offset range $00001000 through $000016F7. The NIOT parameters
do not exceed 128 bytes in size. The setting of this ENV pointer determines their
location. If you have used the same space for your own program information or
commands, they will be overwritten and lost.
You can relocate the network interface configuration parameters in this space by
using the ENV command to change the Network Auto Boot Configuration Parameters
Offset from its default of $00001000 to the value you need to be clear of your data
within NVRAM.
Y
Autoboot normally, regardless of prior Watchdog expiration.
N
Abort Autoboot if Watchdog has previously expired
Y
Level 2 Watchdog timer turned off during startup.
N
Level 2 Watchdog timer status (running or reset) unchanged by startup
Y
Disable RTC Watchdog during startup.
N
Do not disable RTC Watchdog during startup
Y
Reset Ethernet chip after transfer.
N
Do not reset Ethernet chip after transfer.
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