參數(shù)資料
型號: GPS140HR
廠商: Electronic Theatre Controls, Inc.
英文描述: GPS Positioning Module
中文描述: GPS定位模塊
文件頁數(shù): 13/38頁
文件大?。?/td> 282K
代理商: GPS140HR
GPS140HR
13
RTD Embedded Technologies, Inc.
Base address jumpers (Factory setting: 2E8h)
The GPS140HR is I/O mapped into the memory space of your host XT/AT. The
board occupies a consecutive memory window of 8 bytes starting from the base
address.
The most common cause of failure when you are first setting up your module is
address contention: some of your computers I/O space is already occupied by other
devices and memory resident programs. When the GPS140HR attempts to use it's
own reserved memory addresses (which are being already used by another
peripheral device) erratic performance may occur and the data read from the board
may be corrupted.
To avoid this problem make sure you set up the base address by using the six
jumpers on the right side of the board, this allows you to choose from a number of
different addresses in your host computer’s I/O map. Should the factory installed
setting of 38fh be incompatible to your system configuration, you may change this
setting to another using the options illustrated in Table 2-2 (overleaf). The table
shows the jumper settings and their corresponding values in hexadecimal form.
Ensure that you verify the correct location of the base address jumpers. When the
jumper is removed it corresponds to a logical "0", connecting the jumper to a "1".
When you set the base address of the module, record the setting inside the back
cover of this manual.
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