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Hardware initialization – Rockwell Automation 6182 SDK User Manual

Page 13

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Introduction to the RAC6182

1–7

Publication 6182-UM002B-EN-P

The operating system image that is loaded resides in the operating
system partition of the Disk-On-Chip device. However, before loading
the Disk-On-Chip boot image, the boot code checks for the presence of a
PCMCIA memory device that is capable of supplying a boot image. The
flow diagram that follows describes the boot sequence.

Hardware Initialization
The boot code first initializes the CPU and V320 system controller; it
then tests video RAM, which it needs to use for stack and heap until the
system DRAM is fully available. If debug is enabled, the debug serial
port is initialized and a 1 second delay is introduced to give the baud rate

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