VHDL 编写一个16位乘法器并用matlab模拟输入输出

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最新推荐文章于 2025-05-31 11:58:38 发布

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文章标签： hdl matlab

本文链接：https://blog.youkuaiyun.com/piinkyang/article/details/90349458

本文介绍了使用VHDL设计一个32x32矩阵乘法器的过程，该核心接受两个16位输入矩阵，并在MATLAB中创建了用于生成随机输入矩阵和计算乘积的模拟模型。通过将MATLAB生成的文本文件作为VHDL测试平台的输入，验证了VHDL设计的功能。设计包括控制单元和数据路径，其中数据路径包含双端口RAM、地址生成计数器和乘积累加电路。

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Matrix Multiplier Core Design

Introduction

Matrix multiplication is a mathematical operation that is required in most signal processing and image processing applications. In this project the design and implementation of 32x32 matrix multiplier has been done. The matrix multiplication core accepts two input matrices element by element, each element is 16 bit. These elements or values are stored in 2 input buffers and after input storing is finished the core starts calculating the product matrix element by element and store each element in an output buffer.

A MATLAB simulation model is created to generate two random 32x32 Matrices and calculate the product of these two matrices, the MATLAB m code exports the generated input matrices and the result into text files. The generated text files for the two random matrices are used as an input source for a VHDL test bench to verify the operation of the designed matrix multiplication core.

MATLAB simulation model

The MATLAB simulation file generates two random matrices M1 and M2 each matrix is files with 32x32 random values in range between 0 to 100.

M1 = randsrc(32, 32, [0:1:100]);

M2 = randsrc(32, 32, [0:1:100]);

The MATLAB file then converts each matrix to a single vector and open two text files then fill it with the values of the vector in HEX format. These two text files will be used in the VHDL test bench to test the VHDL matrix multiplication core

fileID = fopen('input_A.txt','w');

B = reshape(M1',[],1);

fprintf(fileID,'val=\r\n');

for i=1:1:1024

fprintf(fileID,'%s',dec2hex(B(i</