DE2-70 User Manual
Chapter 5
Using the DE2-70 Board
This chapter gives instructions for using the DE2-70 board and describes each of its I/O devices.
5.1 Configuring the Cyclone II FPGA
The procedure for downloading a circuit from a host computer to the DE2-70 board is described in
the tutorial Quartus II Introduction . This tutorial is found in the DE2_70_tutorials folder on the
DE2-70 System CD-ROM . The user is encouraged to read the tutorial first, and to treat the
information below as a short reference.
The DE2-70 board contains a serial EEPROM chip that stores configuration data for the Cyclone II
FPGA. This configuration data is automatically loaded from the EEPROM chip into the FPGA each
time power is applied to the board. Using the Quartus II software, it is possible to reprogram the
FPGA at any time, and it is also possible to change the non-volatile data that is stored in the serial
EEPROM chip. Both types of programming methods are described below.
1. JTAG programming: In this method of programming, named after the IEEE standards Joint
Test Action Group , the configuration bit stream is downloaded directly into the Cyclone II
FPGA. The FPGA will retain this configuration as long as power is applied to the board;
the configuration is lost when the power is turned off.
2. AS programming: In this method, called Active Serial programming, the configuration bit
stream is downloaded into the Altera EPCS16 serial EEPROM chip. It provides
non-volatile storage of the bit stream, so that the information is retained even when the
power supply to the DE2-70 board is turned off. When the board's power is turned on, the
configuration data in the EPCS16 device is automatically loaded into the Cyclone II
FPGA.
The sections below describe the steps used to perform both JTAG and AS programming. For both
methods the DE2-70 board is connected to a host computer via a USB cable. Using this connection,
the board will be identified by the host computer as an Altera USB Blaster device. The process for
installing on the host computer the necessary software device driver that communicates with the
USB Blaster is described in the tutorial Getting Started with Altera's DE2-70 Board . This tutorial is
available on the DE2-70 System CD-ROM .
30
相关PDF资料
P0305 KIT MAX II MICRO
P0528 BOARD DEV DE1 ALTERA
P100-001 ADAPTER DB9F TO DB25M 1'
P2041RDB-PA BOARD REFERENCE DESIGN P2041
P25E-060S-EA CONN SOCKET 60POS .050" GOLD
P25E-100S-EA CONN SOCKET 100POS .050" GOLD
P25LE-068S-DA CONN SOCKET 68POS .050" GOLD
P302-06I-R CABLE SPLITTER DB15 M-2F 6"
相关代理商/技术参数
P0304U 制造商:TECCOR 制造商全称:TECCOR 功能描述:solid state crowbar devices
P0304U_L 制造商:LITTELFUSE 制造商全称:Littelfuse 功能描述:Mutiport SIDAtor
P0304UALRP 功能描述:硅对称二端开关元件 50A 25/50V RoHS:否 制造商:Bourns 转折电流 VBO:40 V 最大转折电流 IBO:800 mA 不重复通态电流: 额定重复关闭状态电压 VDRM:25 V 关闭状态漏泄电流(在 VDRM IDRM 下): 保持电流(Ih 最大值):50 mA 开启状态电压:5 V 关闭状态电容 CO:120 pF 最大工作温度:+ 150 C 安装风格:SMD/SMT 封装 / 箱体:DO-214AA
P0304UALTP 功能描述:硅对称二端开关元件 50A 25/50V RoHS:否 制造商:Bourns 转折电流 VBO:40 V 最大转折电流 IBO:800 mA 不重复通态电流: 额定重复关闭状态电压 VDRM:25 V 关闭状态漏泄电流(在 VDRM IDRM 下): 保持电流(Ih 最大值):50 mA 开启状态电压:5 V 关闭状态电容 CO:120 pF 最大工作温度:+ 150 C 安装风格:SMD/SMT 封装 / 箱体:DO-214AA
P0304UALXX 制造商:LITTELFUSE 制造商全称:Littelfuse 功能描述:SIDACtor?? Multiport Series MS-013 are designed to protect baseband equipment
P0304UAMCLRP 功能描述:硅对称二端开关元件 50A 25/50V RoHS:否 制造商:Bourns 转折电流 VBO:40 V 最大转折电流 IBO:800 mA 不重复通态电流: 额定重复关闭状态电压 VDRM:25 V 关闭状态漏泄电流(在 VDRM IDRM 下): 保持电流(Ih 最大值):50 mA 开启状态电压:5 V 关闭状态电容 CO:120 pF 最大工作温度:+ 150 C 安装风格:SMD/SMT 封装 / 箱体:DO-214AA
P0304UAMCLTP 功能描述:硅对称二端开关元件 50A 25/50V RoHS:否 制造商:Bourns 转折电流 VBO:40 V 最大转折电流 IBO:800 mA 不重复通态电流: 额定重复关闭状态电压 VDRM:25 V 关闭状态漏泄电流(在 VDRM IDRM 下): 保持电流(Ih 最大值):50 mA 开启状态电压:5 V 关闭状态电容 CO:120 pF 最大工作温度:+ 150 C 安装风格:SMD/SMT 封装 / 箱体:DO-214AA
P0304UARP 功能描述:硅对称二端开关元件 50A 25/50V RoHS:否 制造商:Bourns 转折电流 VBO:40 V 最大转折电流 IBO:800 mA 不重复通态电流: 额定重复关闭状态电压 VDRM:25 V 关闭状态漏泄电流(在 VDRM IDRM 下): 保持电流(Ih 最大值):50 mA 开启状态电压:5 V 关闭状态电容 CO:120 pF 最大工作温度:+ 150 C 安装风格:SMD/SMT 封装 / 箱体:DO-214AA