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Description: http://www.edacn.net/cgi-bin/forums.cgi?forum=7&topic=9127下,则R3～R0的输出信号中会有一个为1,但我们还是是无法确定哪一个键被按下,必須要从R3 ～R0 的输出信号与C3～C0的扫描信号共同決定那个按键被按下.
编写VHDL的构思:
外部接口包括: a. INPUT脚 : CLK , R3～R0.
b. OUTPUT脚 : C3～C0 , DATA3～DATA0(辨别出的按键值).
-7topic http://www.edacn.net/cgi-bin/forums.cgi forum = = 9127, under R3 R0 to the output signal will be one to one, but we are unable to confirm which a key is pressed, we must proceed from R3 to R0 the output signal C0 to C3 with the scanning signal jointly decided that button is pressed. the idea of the preparation of VHDL : external interfaces include : a. INPUT feet : CLK, R3 ~ R0. b. feet OUTPUT : C0 to C3, DATA3 ~ DATA0 (identify the key values ).
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Size: 1559994 |
Author: 杨要强 |
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Description: http://www.edacn.net/cgi-bin/forums.cgi?forum=7&topic=9127下,则R3～R0的输出信号中会有一个为1,但我们还是是无法确定哪一个键被按下,必須要从R3 ～R0 的输出信号与C3～C0的扫描信号共同決定那个按键被按下.
编写VHDL的构思:
外部接口包括: a. INPUT脚 : CLK , R3～R0.
b. OUTPUT脚 : C3～C0 , DATA3～DATA0(辨别出的按键值).
-7topic http://www.edacn.net/cgi-bin/forums.cgi forum = = 9127, under R3 R0 to the output signal will be one to one, but we are unable to confirm which a key is pressed, we must proceed from R3 to R0 the output signal C0 to C3 with the scanning signal jointly decided that button is pressed. the idea of the preparation of VHDL : external interfaces include : a. INPUT feet : CLK, R3 ~ R0. b. feet OUTPUT : C0 to C3, DATA3 ~ DATA0 (identify the key values ).
Platform: |
Size: 1559552 |
Author: 杨要强 |
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Description: 用FPGA实现ARM嵌入式处理器功能的Verilog源码及说明-FPGA with embedded ARM processor to achieve the functional description of Verilog source code and
Platform: |
Size: 194560 |
Author: 赵呈 |
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Description: edacn论坛上对在FPGA学习过程中出现的问题所给出的解决方法和对FGPA学习具有很强的指导意义-edacn question study
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Size: 93184 |
Author: xidian |
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Description: Eda主要介绍的逻辑设计与集成电路：FPGA 设计的指导性原则（连载之二）
典型的FPGA 设计流程
大型复杂FPGA 设计推荐设计方式──Modular Design
Coding Style 与综合前后仿真
数据接口设计
关于有限状态机编码的技巧和注意事项
做distributed ram 时遇到的几个不太明白的信号
Source Insight 兼容VHDL 与VERILOG
如何实现信号延时？
[转载]新手学习技巧-EDA introduces the logical design of integrated circuits: FPGA design of the guiding principles (Part II)
Typical FPGA design flow
Large, complex FPGA design recommended design approach ─ ─ Modular Design
Coding Style and comprehensive before and after simulation
Data interface design
Finite state machine coding techniques and precautions
Do the Distributed RAM encountered a few do not quite understand the signal
Source Insight is compatible with VHDL and Verilog
How to achieve signal delay?
[Reserved] novice learning skills
Platform: |
Size: 491520 |
Author: 江风 |
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