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4. Measuring Power on the
Cyclone III Starter Board
Introduction
One of the main features of the Cyclone ? III device is its low power
consumption. You can measure the power of the 3C25 device on the
Cyclone III starter board under various conditions with an example
design provided with the kit.
The power example design allows you to control the amount of logic
utilized in the FPGA, the clock frequency, the number of I/Os being used,
and measure the effect on the power to the Cyclone III device. Because the
Cyclone III starter board has only four buttons and four LEDs, interaction
with the board is minimal as defined below.
Table 4–1 describes the functionality of the four input buttons that control
the power example design.
Table 4–1. Four Input Button Functionality
Button
1
FPGA Pin
F1
Reset
Type
Description
Resets the demo to the beginning, node
i_nrst .
2
F2
Toggle
Advances the example design to the next higher
frequency, node i_nfreq_next .
3
A10
Toggle
Advances the example design to the next higher
resource utilization, node_i_nperc_next .
4
B10
Press and Hold
Enables the outputs to toggle, node
i_noutput_ena .
Tables 4–2 and 4–3 describe how the LEDs indicate the example design’s
current power state.
Table 4–2. LEDs Power State (Frequency)
Displays
Frequency
MSB
LED2
LEDs
LSB
LED1
State
00
Clock Frequency
(MHz)
0
01
10
11
33
67
100
Altera Corporation
Core Version a.b.c variable
4–1
July 2010
Preliminary
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相关PDF资料
DK-NIOS-2C35N NIOS II KIT W/CYCLONE II EP2C35N
DK-NIOS-2S60N NIOS II KIT W/STRATIX II EP2S60N
DK-PCI-2C35N PCI KIT W/CYCLONE II EP2C35N
DK-PCIE-2SGX90N PCIE KIT W/S II GX EP2SGX90N
DK-SI-2SGX90N SI KIT W/SII GX EP2SGX90N
DK-SI-4SGX230N KIT DEV STRATIX IV 4SGX230N/C2
DK-START-3C25N KIT STARTER CYCLONE III EP3C25
DK-START-4CGX15N KIT STARTER CYCLONE IV GX
相关代理商/技术参数
DK-N2EVAL-3C25N/QP 制造商:Altera Corporation 功能描述:
DK-N2EVAL-3C25N-OJ 制造商:Altera 功能描述:DK-N2EVAL-3C25N-OJ
DK-N55224 制造商:Brother 功能描述:
DKN7900P-4-AA-1 制造商:DEUTSCH FAST / HUCK 功能描述:
DKNIL12VF 制造商:PANASONIC 制造商全称:Panasonic Semiconductor 功能描述:10 A MINIATURE POWER RELAY
DKNIL12VNIL 制造商:PANASONIC 制造商全称:Panasonic Semiconductor 功能描述:10 A MINIATURE POWER RELAY
DKNIL24VF 制造商:PANASONIC 制造商全称:Panasonic Semiconductor 功能描述:10 A MINIATURE POWER RELAY
DKNIL24VNIL 制造商:PANASONIC 制造商全称:Panasonic Semiconductor 功能描述:10 A MINIATURE POWER RELAY