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SRAM
SRAM读写测试实例,每秒钟进行一次单字节的SRAM
读和写操作,用chipscope查看时序波形。(SRAM read and write test instances, each time a single byte SRAM
Read and write operations, use chipscope to see the timing waveform.)
- 2017-09-06 11:43:06下载
- 积分:1
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N-bits-by-M-bits
这是一个verilog代码实现的常用乘法器。设计的是通用N比特乘M比特的二进制乘法器(This is a common multiplier verilog code. Design of a generic N bits by M bits of the binary multiplier)
- 2013-10-05 19:44:52下载
- 积分:1
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Dec_mul
时间同步后即可确定每帧数据的起始位置,这样就能完整的截取下每一帧。但是,数据中还带有频偏信息。在常规的通信系统中,多普勒很小仅仅会带来很小的频偏,但是在大多普勒的情况下,频偏将非常大,20马赫的速度将会带来将近34K的频偏。因此,如何很好的纠正频偏即为本系统的难点。
OFDM中,我们将大于子载波间隔倍数的频偏称为整数倍频偏,而将小于一个子载波间隔的频偏称为小数倍频偏。频偏矫正精度只要能保证小于十分之一倍的子载波间隔,频偏就不会对均衡和解调造成影响。本文中我们借鉴这种思想,由于硬件资源限制,我们将在接收端做64点FFT,即相当于将频域划分为64份,我们将小于 的频偏称为小数倍频偏,将 整数倍的频偏称为整数倍频偏。本程序即基于SCHIMDL经典方法完成小数倍频偏纠正(After time synchronization can determine the starting position of each frame data, so you can complete the interception of each frame. However, in the data with frequency information. In conventional communication systems, doppler small will bring only small deviation, but in the case of most of the doppler, frequency PianJiang is very large, 20 Mach speed will lead to deviation of nearly 34 k. Therefore, how to good to correct deviation is the difficulty of this system.
OFDM, we will be bigger than the sub-carrier spacing ratio of frequency deviation is called the integer frequency offset, and the interval will be less than a child carrier frequency offset is called decimal frequency doubling. Deviation is less than one over ten times as long as can guarantee accuracy of sub-carrier spacing, deviation will not affect balance and demodulation. This article, we draw lessons from the idea, due to the limited hardware resources, we will do 64 points FFT at the receiving end, which is equ)
- 2013-12-26 18:00:24下载
- 积分:1
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vga 控制器
这是语言代码的 vga 控制器,为使用 fpga 德 70 altera 和使用 quartus,
此过程描述的水平像素计数器的操作。同步设置计数器为零 fpga_reset_n 应用时。计数器上的每个像素时钟的上升沿的递增。水平像素计数器的范围是 [0,793]。当计数器达到 793 时,它翻转为零在下一个周期。因此,该计数器有 794 像素时钟的期间。同为 25 MHz 的像素时钟,这一段时间的 31.76 μ s 转化。
- 2022-07-24 06:02:42下载
- 积分:1
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add_verilog
2位全加器,实现全加器的功能,有近位的加法,输出也有近位,还有testbench,进行验证,验证通过(Two full adders, to achieve full adder function, nearly bit adder, there are nearly bit output)
- 2014-05-14 18:56:33下载
- 积分:1
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ADC0832TLC5615
开关电源中用单片机产生可调电压控制PWM波程序,ADC0832读取输出电压(Single-chip switching power supply using adjustable voltage control PWM wave generation process, ADC0832 read the output voltage)
- 2011-09-16 23:37:27下载
- 积分:1
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1024point-fft--using-verilog-hdl
1024点快速傅里叶变换,使用verilog hdl硬件描述语言(1024point FFT,using verilog hdl)
- 2013-03-09 10:54:42下载
- 积分:1
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rs_decode_31
RS码的FPGA编码文件,QUARTUS工程(The RS codes FPGA encoded file, QUARTUS engineering)
- 2013-03-11 19:21:46下载
- 积分:1
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红外线控制电机 verilog
此代码粗略才描述了怎么用红外线控制电机的转动,包括前传,中止,后转,加速等等。此代码并非本人原创,只是经过本人修改,更人性化而已,当然并不完美,多有瑕疵。只是望其能帮助初学者更好的学习、理解,以尽绵薄之力。
- 2022-01-24 13:28:59下载
- 积分:1
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tpc_decode_vhdl
基于VHDL的TPC译码器的设计,简述了tpc译码的算法步骤,tpc硬件实现的模块和部分vhdl程序(TPC decoder VHDL-based design, outlines the decoding algorithm steps tpc, tpc hardware modules and some vhdl program)
- 2020-11-20 10:59:37下载
- 积分:1