How do I control a module or Evaluation Kit with Matlab?

% function to move motor to positon 
 
% ROR Command 
function move(nin) 
n = int32(nin); 
 
% generate command 
% byte1 - adress 
byte(1:4) = uint8([1,4,1,0]); 
byte(5)= uint8(bitand(bitshift(n,-24),255) ); 
byte(6)= uint8(bitand(bitshift(n,-16),255) ); 
byte(7)= uint8(bitand(bitshift(n,-8),255) ); 
byte(8)= uint8(bitand(n,255) ); 
byte(9)=uint8(bitand(sum(byte(1:8)),255) ), 
 
% open com port for data transfer 
fid = serial('COM12','BaudRate',9600, 'DataBits', 8, 'Parity', 'none','StopBits', 1, 'FlowControl', 'none'); 
fopen (fid); 
 
%send command 
fwrite(fid,byte); 
pause(1); 
 
%get answer 
answer = fread(fid, 9, 'uint8') 
 
% close com port connection 
fclose(fid); 
 
% when you enter the function " move_right(1, 0.005,0.01)" in your 
% window command, the motor can move.