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Ppcbug firmware – Artesyn MVME51005E SBC Installation and Use (July 2014) User Manual

Page 52

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PPCBug Firmware

MVME51005E Single Board Computer Installation and Use (6806800A38D)

54

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 0x1000, but this value is application-specific. (Default =
0x00001000)

Memory Size Enable [Y/N] = Y?

Memory Size Starting Address = 00000000?

The default Starting Address is 0x00000000.

Memory Size Ending Address = 02000000?

The default Ending Address is the calculated size of local memory. If the memory start is
changed from 0x0x00000000, this value will also need to be adjusted.

DRAM Speed in NANO Seconds = 15?

The default setting for this parameter will vary depending on the speed of the DRAM memory
parts installed on the board. The default is set to the slowest speed found on the available
banks of DRAM memory.

ROM Bank A Access Speed (ns) = 80?

If you use the NIOT debugger command, these parameters need to be saved somewhere in
the offset range 0x00001000 through 0x000016F7. 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 0x00001000 to the value you need to be clear of your data within NVRAM.

Y

Memory will be sized for SelfTest diagnostics. (Default)

N

Memory will not be sized for SelfTest diagnostics.