matlab to vhdl conversion

i want to write a matlab code for an user defined input for finding rise time,peak time and fall time which i then need to convert to vhdl. Input can be upto 16bit.

[Geoff Hayes]

Yash - what have you tried so far?

[yash sharma]

i have used interpolation to find the rise time n peak time for already defined values but this cannot be converted to vhdl so we need some variables

x=-4:4;

y=[0 0.15 0.4 1.2  2.3 2.36 1.3 0.9 0]

cs=spline(x,[0 y 0]);

plot(x,y,'o');

x2=interp1(x(1:4),y(1:4),0.9,'spline')

x1=interp1(x(1:4),y(1:4),0.1,'spline')

xr=x2-x1

x4=interp1(x(5:9),y(5:9),0.1,'spline')

x3=interp1(x(5:9),y(5:9),0.9,'spline')

xf= x4-x3

As it can be seen i have defined y already with some numbers so in place of that i want to use y1,y2,y3..so on

[Geoff Hayes]

Are y1, y2, etc. vectors or just scalars? If you want to use them in place of y then why not do so?

[yash sharma]

y1 y2 etc correspond to scalar values they are each a bit like 0 or 1

Answer 1

[mouh nyquist]

there is a gooood file in matlab file exchange ; I hope that will help you

[yash sharma]

file named what?

[mouh nyquist]

tape vhdl ; all the best