参数资料
| 型号： | DST1E1DK |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 2/4页 |
| 文件大小： | 0K |
| 描述： | KIT DESIGN SCT T1/E1 DS21X5Y |
| 标准包装： | 1 |
AN375
choose from any of the six remaining chip selects. Since these chip selects are generated from the three
most-significant-address bits, these traces are not brought out to the expansion port.
DEF FILE MODIFICATION
In order to define the memory map of any user-added DUT or board that is interfaced with the
DST1E1DK board, the user must modify the supplied DEF files to include links to the DEF file for the
user DUT or interfaced board. A DEF file is simply a file that defines the memory map of the system for
the development software, including information such as register names, addresses, bit definitions, and
display format. If more than one device is to be interfaced, than multiple links will have to be made to the
base DEF file. For general information on DEF file format and usage, please refer to the literature
included with the DST1E1DK design kit. When the user purchases this development kit, several DEF
files are included for use with the base T1E1DK board. These include a DEF file for the DS2172 BERT
chip, as well as DEF files for the various SCTs that can be used in the socket. In order to let the software
recognize the newly added DUT or user defined board, these supplied files must be modified to include a
LINK to the user created DEF file, which defines the users memory map and base offset. The OFFSET
listed in the users DEF file must correspond to the chip select that the user wishes to employ. For Chip
Select 2, for example, the user would define the OFFSET in the DEF file as 0x2000h. For Chip Select 3,
the OFFSET would be 0x3000h, and so forth. Once this file is created and linked to the DEF file for the
SCT on the base board, the user will be able to access their registers via the DST1E1DK software, just
like the registers sets in the BERT chip or the SCT being used.
SUMMARY
Interfacing user-defined devices to the DST1E1DK is an easy and potentially robust way to create
development platforms. The Dallas Semiconductor board provides a simple processor interface and
development software as well as multiple SCTs and a DS2172 BERT chip for the end user to build off of
or interface to. The development board provides easy access to all necessary traces, either via the two
expansion ports or via standard header interfaces, allowing the user to jumper between the Dallas
Semiconductor board and the DUT. With the ability to choose between multiple SCTs, the processor, and
the BERT chip, the user can test virtually any telecommunication device or product.
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