读取ila/csv文件

Posted 2021-03-22 mia1004

FPGA数据录取下来后，通过MALTAB仿真分析，数据提取代码如下：

fileName = ‘1.csv‘;
Length = 2048;%录取长度
fd = fopen(fileName, ‘r‘);
s = fgets(fd);
data = zeros(40, Length); %40为抓取的数据个数，每拍的个数，具体可打开csv分析
for jj = 1:Length
    s = fgets(fd);
    pos = (s == ‘,‘);
	s1 = textscan(s, ‘%s‘);
	s1 = s1{1,1};
	for kk = 4:43
		a = s1(kk);
		a = a{1,1};
		a = str2num(a);
		mm = kk - 3;
		data(mm, jj) = a;
	end
end

data2 = data(:);
plot(data2)