DNR-X-1G Series RACKtangle and HalfRACK Systems
Chapter 6 91
Programming CPU Board-specific Functions
October 2018 www.ueidaq.com
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© Copyright 2018
United Electronic Industries, Inc.
Chapter 6 Programming CPU Board-specific
Functions
6.1 Overview This chapter provides information about programming DNR-X-1G CPU Core
modules:
• Memory Map Overview (Section 6.2)
• Startup Sequence (Section 6.3)
• Setting and Reading CPU Core Parameters via Serial Port (Section 6.4)
NOTE: This chapter primarily provides descriptions of DNR-X-1G CPU Core
commands that can be issued over a serial terminal.
Example code and additional documentation for programming your
application, (e.g., getting started guides, API reference, synchronization
documentation) are provided with the installation.
6.2 Memory Map
Overview
This section describes the memory map for the DNR-CPU/NIC core modules
(DNR-CPU-1000/DNR-CPU-1000-XX).
NOTE: DNR-CPU/NIC board revisions align with product versions. For a list of
for DNR-X-1G Series product versions, refer to Section 1.2 on page 3.
Table 6-1 Memory Map for DNR-X-1G CPU (DNR-CPU-1000)
Device
Start
Address End Address Size Description
SDRAM 0x0 0x7FFFFFF 128MB SDRAM_ADDRESS
Exception table 0x0 0x3000 12 kB Processor address map
CPU card address 0xA00E0000 0xA00EFFFC 64 kB EXT_SRAM_ADDRESS
Processor
RAMBAR
0xE0000000
Module – CS2 0xA0000000 0xA00FFFFC 1 MB EXT_DEV_ADDRESS2
Module – CS3 0xA0100000 0xA01FFFFC 1 MB EXT_DEV_ADDRESS3
Flash
(Linux kernel)
0xFE000000 0xFF7FFFFF up to 24 MB Linux kernel
Flash (firmware) 0xFF800000 0xFFEFFFFF up to 7 MB Firmware
Flash (U-Boot) 0xFFF00000 0xFFF5FFFF approximately
320 kB
U-Boot
Flash
(parameters)
0xFFF60000 0xFFFFFFFF 64 kB Parameters (1 sector)
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