Why doesn't it work?

Hi,

I'm trying to create a serial communication between two of my USB ports with two USB-serial adapter and a cross-over cable. I'm using the following code:

input = serial('COM3');
output = serial('COM4');
fwrite(input, 'hello');
fgets(output);

After fgets() this is what I get:

Warning: A timeout occurred before the Terminator was reached.

It seems like there is no stop bit after the characters and I don't know what to do with it. Please help me.

Thanks.

Answer 1

[Walter Roberson]

fwrite(input, sprintf('%s\n', 'hello'));

or

fprintf(input, '%s\n', 'hello');

or

fprintf(input, 'hello');    %special case, adds \n automatically

[Bence Salanki]

Thank you!