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| 型号： | P0528 |
| 厂商： | Terasic Technologies Inc |
| 文件页数： | 28/56页 |
| 文件大小： | 0K |
| 描述： | BOARD DEV DE1 ALTERA |
| 标准包装： | 1 |
| 类型： | FPGA |
| 适用于相关产品： | Cyclone II 2C20 |
| 所含物品： | DE1 板，电源，USB 线缆，塑料盖和软件 |
| 配用： | P0033-ND - BOARD ADAPTER HSMC TO GPIO P0006-ND - BOARD ADAPTER THDB-SUM P0001-ND - MODULE DIGITAL CAMERA 5MP (D5M) P0307-ND - KIT DEV 4.3" LCD TOUCH PANEL |
| 相关产品： | 544-2107-ND - IC CYCLONE II FPGA 20K 240-PQFP 544-2106-ND - IC CYCLONE II FPGA 20K 240-PQFP 544-2105-ND - IC CYCLONE II FPGA 20K 484-FBGA 544-2104-ND - IC CYCLONE II FPGA 20K 484-FBGA 544-2103-ND - IC CYCLONE II FPGA 20K 256-FBGA 544-2102-ND - IC CYCLONE II FPGA 20K 256-FBGA 544-2101-ND - IC CYCLONE II FPGA 20K 484-FBGA 544-1781-ND - IC CYCLONE II FPGA 20K 256-FBGA 544-1670-ND - IC CYCLONE II FPGA 20K 484-FBGA 544-1669-ND - IC CYCLONE II FPGA 20K 484-FBGA 更多... |
| 其它名称： | DE1 |
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DE1 User Manual
USB Blaster Circuit
Quartus II
Programmer
AS Mode
USB
MAX
3128
RUN/PROG
"PROG"
AS Mode
Config
Auto
Power-on Config
JTAG Config Port
EPCS4
Serial
FPGA
Configuration
Device
Figure 4.2. The AS configuration scheme.
In addition to its use for JTAG and AS programming, the USB Blaster port on the DE1 board can
also be used to control some of the board's features remotely from a host computer. Details that
describe this method of using the USB Blaster port are given in Chapter 3.
4.2 Using the LEDs and Switches
The DE1 board provides four pushbutton switches. Each of these switches is debounced using a
Schmitt Trigger circuit, as indicated in Figure 4.3. The four outputs called KEY0 , …, KEY3 of the
Schmitt Trigger device are connected directly to the Cyclone II FPGA. Each switch provides a high
logic level (3.3 volts) when it is not pressed, and provides a low logic level (0 volts) when
depressed. Since the pushbutton switches are debounced, they are appropriate for use as clock or
reset inputs in a circuit.
Figure 4.3. Switch debouncing.
There are also 10 toggle switches (sliders) on the DE1 board. These switches are not debounced,
and are intended for use as level-sensitive data inputs to a circuit. Each switch is connected directly
to a pin on the Cyclone II FPGA. When a switch is in the DOWN position (closest to the edge of
the board) it provides a low logic level (0 volts) to the FPGA, and when the switch is in the UP
position it provides a high logic level (3.3 volts).
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