Send hexadecimal data with serial port

Hi all,

I am trying to send hexadecimal data by serial port using Matlab. I hace to send and receive data with a Texas Instruments microcontroller. Before try to do it with Matlab i sent and received the information with the program Serial Port Monitor (https://www.eltima.com/products/serial-port-monitor/?gclid=Cj0KCQjw5fDWBRDaARIsAA5uWTjq8_6dvxvJzJkknNUNkBUclh-IZraahmq6h-X49BpkmV5BgrwNTXUaAjVGEALw_wcB). The results are these:

I have to send the data in hexadecimal format as you can see, and the results were ok, i received what i am searching.

The problem is when i try to do with Matlab the same previous process that i did with Serial Port Monitor. I am using this Matlab code:

clear all; close all; clc; s = serial('COM3');

set(s,'BaudRate',9600);

fopen(s);

fprintf(s,'fe fe fe fe 68 99 99 99 99 99 99 68 23 0a 60 00 34 12 78 56 bc 9a f0 de 2b 16A')

out = fscanf(s)

fclose(s)

delete(s)

clear s

With Serial Monitor Program you can watch all that is sending and receiving by serial port (Although you don't send data with Serial Monitor Program, as in this case, which i am sending and receiving with Matlab). The results are these:

I am sending data in Ascii and i pretend to send in hexadecimal (I have done a lot of modifications to the previous code and i can't solve the problem). I want to do the same thing that you can see in the first image, but with Matlab. Can someone help me?

Thanks in advance.

Miguel