How to make a rectangular pulse train at 50 kHz frequency?

HI,

I have a code -

t = 0 : 1/1e3 : 1;         % 1 kHz sample freq for 1 sec 
d = 0 : 1/3 : 1;           % 3 Hz repetition freq 
y = pulstran(t,d,'rectpuls');
plot(t,y)

which is supposed to generate a rectangular pulse at 3 Hz how to make it 50 kHz?

When I try changing it, I dont see the pulse train any more.

Thanks

Answer 1

[Wayne King]

You did not specify the width of the pulse. I've made it 10 microseconds.

t = 0 : 1/1e6 : .01;         
d = 0 : 1/50e3 : .01;           
y = pulstran(t,d,@rectpuls,1e-5);
plot(t,y); 
axis([0 0.001 0 1.5])

[Jonathan Duncan]

why did you use the @ symbol I've been trying to do the same thing with just the '' symbols and does not work. Also could you use this for generator in arduino to control a motor or flashing light