MATLAB——生成各种数据类型的COE文件

MATLAB是一种功能强大的数学软件，不仅可以进行各种数学计算，还能够生成并处理多种数据类型。在以下的代码中，我们使用MATLAB生成COE文件，该文件包含了不同数据类型的波形数据，涉及无符号整数、有符号整数、单精度浮点数以及双精度浮点数。

width = 32; %宽度
depth = 100;%深度,时钟频率/采样点=波形频率
Amp   = 1  ;%浮点幅度
x = linspace(0,2*pi,depth);

if(mod(width,4) == 0)
    N = width/4;
else
    N = int32(width/4) + 1;
end
%% 无符号
y = sin(x);
y = y * ((2^(width-1)) - 1) + ((2^(width-1)) - 1);
y = uint32(y);
subplot(2,2,1);plot(y);

fid = fopen('.\unsignwav.coe','w');
fprintf(fid,"memory_initialization_radix = 16; \n");
fprintf(fid,"memory_initialization_vector = \n");

for i = 1:depth
    if(i == depth)
        fprintf(fid,"%s;\n",dec2hex(y(i),N));
    else
        fprintf(fid,"%s,\n",dec2hex(y(i),N));
    end
end

fclose(fid);

%% 有符号
sy = sin(x);
sy = sy * ((2^(width-1)-1));
sy = int64(sy);
sy(sy < 0) = sy(sy < 0) + 2^width;
subplot(2,2,2);plot(sy);

fid = fopen('.\signwav.coe','w');
fprintf(fid,"memory_initialization_radix = 16; \n");
fprintf(fid,"memory_initialization_vector = \n");

for i = 1:depth
    if(i == depth)
        fprintf(fid,"%s;\n",dec2hex(sy(i),N));
    else
        fprintf(fid,"%s,\n",dec2hex(sy(i),N));
    end
end

fclose(fid);

%% float浮点
fy = Amp*sin(x);
subplot(2,2,3);plot(fy)
fy = num2hex(single(fy));

fid = fopen('.\floatwav.coe','w');
fprintf(fid,"memory_initialization_radix = 16; \n");
fprintf(fid,"memory_initialization_vector = \n");

for i = 1:depth
    fprintf(fid,"%s;\n",fy(i,:));
end

fclose(fid);

%% double浮点
dy = Amp*sin(x);
subplot(2,2,4);plot(dy)
dy = num2hex(dy);

fid = fopen('.\doublewav.coe','w');
fprintf(fid,"memory_initialization_radix = 16; \n");
fprintf(fid,"memory_initialization_vector = \n");

for i = 1:depth
    fprintf(fid,"%s;\n",dy(i,:));
end

fclose(fid);

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