參數(shù)資料
型號(hào)： 101-0814
廠商： Rabbit Semiconductor
文件頁(yè)數(shù)： 33/94頁(yè)
文件大?。?/td> 0K
描述： COMPUTER SNG BD BL1810 512K SRAM
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： BL1810
User’s Manual
35
3.8.3 Spectrum Spreader
Jackrabbit boards that carry the CE mark have a Rabbit 2000 microprocessor that features a
spectrum spreader, which helps to mitigate EMI problems. By default, the spectrum
spreader is on automatically for Jackrabbit BL1810 and BL1820 boards that carry the CE
mark when used with Dynamic C 7.32 or later versions, but the spectrum spreader may also
be turned off or set to a stronger setting. The spectrum spreader settings may be changed
through a simple configuration macro as shown below.
The spectrum spreader is off by default for Jackrabbit BL1800 models, and needs to be
enabled for them to be CE-compliant. To allow the flash memory and RAM chips to
accommodate the occasional higher frequencies associated with the spectrum spreader
being turned on for the Jackrabbit BL1800 models only, you will need at least one wait
state for both the flash memory and the RAM. The strong spectrum-spreading setting is not
needed for any Jackrabbit board.
The number of wait states is specified in the following code from the LIB\BOARDTYPES
library. (There are 0 wait states by default.)
#ifndef NUM_RAM_WAITST
#define NUM_RAM_WAITST 0
#endif
#ifndef NUM_FLASH_WAITST
#define NUM_FLASH_WAITST 0
#endif
There is no spectrum spreader functionality for Jackrabbit boards that do not carry the CE
mark or when using any Jackrabbit with a version of Dynamic C prior to 7.30.
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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101-1087 MODULE RABBITCORE RCM 3365
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1B32AN IC SIGNAL COND HYBRID 28-DIP
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
101-0815 功能描述:單板計(jì)算機(jī) SR9100 512K SRAM RoHS:否 制造商:Ampro By ADLINK 外觀尺寸:EPIC 處理器類型:Intel Atom D510 頻率:1.66 GHz 存儲(chǔ)容量:2 GB (max) 存儲(chǔ)類型:DDR2, L2 Cache 接口類型:Ethernet, PS/2, SATA, Serial, USB 工作電源電壓:5 V, 12 V 功耗:13 W 最大工作溫度:+ 70 C 尺寸:165.1 mm x 114.3 mm
101-0816 功能描述:KIT DEV RABBITCORE TCP/IP 2000 RoHS:否 類別:編程器，開(kāi)發(fā)系統(tǒng) >> 過(guò)時(shí)/停產(chǎn)零件編號(hào) 系列:* 標(biāo)準(zhǔn)包裝:1 系列:- 類型:MCU 適用于相關(guān)產(chǎn)品:Freescale MC68HC908LJ/LK（80-QFP ZIF 插口） 所含物品:面板、纜線、軟件、數(shù)據(jù)表和用戶手冊(cè) 其它名稱:520-1035
101-0817 功能描述:單板計(jì)算機(jī) BL2030 512K SRAM RoHS:否 制造商:Ampro By ADLINK 外觀尺寸:EPIC 處理器類型:Intel Atom D510 頻率:1.66 GHz 存儲(chǔ)容量:2 GB (max) 存儲(chǔ)類型:DDR2, L2 Cache 接口類型:Ethernet, PS/2, SATA, Serial, USB 工作電源電壓:5 V, 12 V 功耗:13 W 最大工作溫度:+ 70 C 尺寸:165.1 mm x 114.3 mm
101-0818 功能描述:單板計(jì)算機(jī) BL2100 Fric Lk 512K RoHS:否 制造商:Ampro By ADLINK 外觀尺寸:EPIC 處理器類型:Intel Atom D510 頻率:1.66 GHz 存儲(chǔ)容量:2 GB (max) 存儲(chǔ)類型:DDR2, L2 Cache 接口類型:Ethernet, PS/2, SATA, Serial, USB 工作電源電壓:5 V, 12 V 功耗:13 W 最大工作溫度:+ 70 C 尺寸:165.1 mm x 114.3 mm
101-0820 功能描述:COMPUTER SGL-BD BL2000 SRAM/FLSH RoHS:否 類別:集成電路 (IC) >> 嵌入式 - 微控制器或微處理器模塊 系列:SBC 產(chǎn)品目錄繪圖:DLP-245SY-G 標(biāo)準(zhǔn)包裝:1 系列:USB 模塊/板類型:開(kāi)發(fā)板 適用于相關(guān)產(chǎn)品:USB 其它名稱:813-1006
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