收藏本站
Chapter 6: Board Test System
6–25
The Clock Control
Calculating Power
The Power Monitor calculates power by measuring two different voltages with the
LT2418 A/D and applying the equation P = V × I to determine the power
consumption. The LT2418 measures the voltage after the appropriate sense resistor
( Vsense ) and the voltage drop across that sense resistor ( Vdif ). The current ( I ) is
calculated by dividing the measured voltage drop across the resistor by the value of
the sense resistor ( I = Vdif / R ). Through substitution, the equation for calculating
power becomes P = V × I = Vsense × ( Vdif / R ) = ( Vsense ) × ( Vdif ) × (1/.003).
You can verify the power numbers shown in the Power Monitor with a digital
multimeter that is capable of measuring microvolts to ensure you have enough
significant digits for an accurate calculation. Measure the voltage on one side of the
resistor (the side opposite the power source) and then measure the voltage on the
other side. The first measurement is Vsense and the difference between the two
measurements is Vdif . Plug the values into the equation to determine the power
consumption.
The Clock Control
The Clock Control sets the Si570 programmable oscillator to any frequency between
10 MHz and 810 MHz with eight digits of precision to the right of the decimal point.
The oscillator drives a 2-to-4 buffer that drives a copy of the clock to all four edges of
the FPGA.
The Clock Control runs as a stand-alone application. ClockControl.exe resides in the
<install dir> \kits\stratixIVGX_4sgx230_av\examples\board_test_system directory.
On Windows, click Start > All Programs > Altera > Audio Video Development Kit,
Stratix IV GX Edition < version > > Clock Control to start the application.
f
For more information about the Si570 and the Stratix IV GX development board’s
clocking circuitry and clock input pins, refer to the Stratix IV GX FPGA Development
Board Reference Manual .
The Clock Control communicates with the MAX II device on the board through the
JTAG bus. The Si570 programmable oscillator is connected to the MAX II device
through a 2-wire serial bus. Figure 6–13 shows the Clock Control.
? November 2009
Altera Corporation
Audio Video Development Kit, Stratix IV GX Edition User Guide
发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

*型号 *数量 厂商 批号 封装
添加更多采购

我的联系方式

*
*
*
相关PDF资料
DKUSB-1 KIT DEV FOR MB86065
DLD101-7 IC LED DRIVER HP CONST CURR 8DFN
DLP-2232H-PSOC5 MODULE PSOC5 USB ADAPTER FT2232H
DM163014 BOARD DEMO PICDEM4 12F629,16F630
DM163022-1 BOARD DEMO PIC16F87X PIC18FXX2
DM163030 KIT DEV PICDEM LCD2
DM163035 KIT DEVELOPMENT PICDEM LAB
DM164120-1 BOARD DEMO PICKIT 2 LP COUNT
相关代理商/技术参数
DKWF111 功能描述:WiFi/802.11开发工具 WF111 SDIO Eval kit RoHS:否 制造商:Roving Networks 产品:Evaluation Boards 工具用于评估:RN-171 支持协议:802.11 b/g 频率:2.4 GHz 接口类型:UART 工作电源电压:2 V to 16 V
DKWF121 功能描述:WiFi/802.11开发工具 WF121 Dev Kit RoHS:否 制造商:Roving Networks 产品:Evaluation Boards 工具用于评估:RN-171 支持协议:802.11 b/g 频率:2.4 GHz 接口类型:UART 工作电源电压:2 V to 16 V
DKWT32I 功能描述:BLUETOOTH DEVELOPMENT KIT 制造商:silicon labs 系列:- 零件状态:有效 类型:收发器; 传统蓝牙? 频率:2.4GHz 配套使用产品/相关产品:WT32i 所含物品:板 标准包装:1
DKXC5VADAPT-1 功能描述:DAC DK FPGA ADAPTER BOARD RoHS:是 类别:编程器，开发系统 >> 配件 系列:- 标准包装:1 系列:- 附件类型:适配器板 适用于相关产品:RCB230，RCB231，RCB212 配用:26790D-ND - RCB BREAKOUT BOARD RS232 CABLE
DKYRITRPDR2B30 制造商:OMRON AUTOMATION AND SAFETY 功能描述:TEXAS INSTRUMENTS V640RFID TAG
DKY-RI-TRP-DR2B-30 制造商:OMRON AUTOMATION AND SAFETY 功能描述:TEXAS INSTRUMENTS V640RFID TAG 制造商:Omron Electronic Components LLC 功能描述:TI V640RFID tag 制造商:OMRON INDUSTRIAL AUTOMATION 功能描述:Texas Instruments V640RFID tag
DK-Z7-VIDEO-CES-G 制造商:Xilinx 功能描述: 制造商:Xilinx 功能描述:ZYNQ-7000 VIDEO AND IMAGING KIT 制造商:Xilinx 功能描述:IMAGING / VIDEO KIT ZYNQ-7000 制造商:Xilinx 功能描述:IMAGING / VIDEO KIT, ZYNQ-7000
DK-Z7-VIDEO-CES-G-J 制造商:Xilinx 功能描述:ZYNQ-7000 VIDEO/IMAGE KIT JAPAN