參數(shù)資料
型號: 101-0602
廠商: Rabbit Semiconductor
文件頁數(shù): 43/106頁
文件大?。?/td> 0K
描述: COMPUTER SNGL BRD BL2500 44.2MHZ
標(biāo)準(zhǔn)包裝: 10
系列: SBC
模塊/板類型: 單板計(jì)算機(jī)模塊
適用于相關(guān)產(chǎn)品: BL2500
User’s Manual
35
3.7.2 Spectrum Spreader
The Rabbit 3000 features a spectrum spreader, which helps to mitigate EMI problems. By
default, the spectrum spreader is on automatically, but it may also be turned off or set to a
stronger setting. The means for doing so is through a simple configuration macro as shown
below.
NOTE: Refer to the Rabbit 3000 Microprocessor User’s Manual for more information
on the spectrum-spreading setting and the maximum clock speed.
1. Select the “Defines” tab from the Dynamic C Options > Project Options menu.
2. Normal spreading is the default, and usually no entry is needed. If you need to specify
normal spreading, add the line
ENABLE_SPREADER=1
For strong spreading, add the line
ENABLE_SPREADER=2
To disable the spectrum spreader, add the line
ENABLE_SPREADER=0
NOTE: The strong spectrum-spreading setting is not recommended since it may limit
the maximum clock speed or the maximum baud rate. It is unlikely that the strong set-
ting will be used in a real application.
3. Click OK to save the macro. The spectrum spreader will now remain off whenever you
are in the project file where you defined the macro.
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