Altera Cyclone II FPGA Starter Development Board Bedienungsanleitung PDF herunterladen (Seite 33)

Altera Corporation Reference Manual 2–15

October 2006 Cyclone II FPGA Starter Development Board

Development Board Components

Power ON/OFF Switch

The Cyclone II FPGA Starter board receives its power from either the USB

port directly or the included 7.5V power adapter. The Power On/Off

switch gates the power from both of these sources to the rest of the board.

RUN/PROG Switch

The RUN/PROG switch directs the JTAG signals from the USB-Blaster

circuit to the FPGA directly when in the RUN position (Figure 2–8) or to

the EPCS4 Serial EEPROM configuration device when in the PROG

position (Figure 2–9).

Figure 2–8. RUN/PROG Switch in RUN Position

Figure 2–9. RUN/PROG Switch in PROG Position

With the RUN/PROG switch in the RUN position, the FPGA configures

from the EPCS4 device on power up.

USB Blaster Circuit

MAX

3128

USB

FPGA

JTAG Config Port

EPCS Serial

Configuration

Device

RUN/

PROG

RUN

”

Auto Power

on Config