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API Frames in Serial_Write


From: Grant Wise
Subject: API Frames in Serial_Write
Date: Sat, 7 Mar 2020 10:19:26 -0600

Hello,

I am attempting to write commands to an Xbee module through serial in Octave. Problem is, to communicate this xbee needs to receive an API packet (a vector of Hex values). Matlab appears to have a solution for this, see: https://www.digi.com/support/forum/43073/send-api-frame-through-matlab-serial

However, it appears that srl_write will not accept vectors. Any suggestions? Below is my code:


pkg load instrument-control

if (exist("serial") != 3)
  disp("No serial support")
endif

s1 = serial("COM4")
set(s1, 'baudrate', 115200);    
set(s1, 'bytesize', 8);        
set(s1, 'parity', 'n');        
set(s1, 'stopbits', 1);        
set(s1, 'timeout', 123);    

frame(1,:) = '7E';                                      % Frame Class Name for reading only
frame(2,:) = '00';                                     % length 1
frame(3,:) = '10';                % length 2
frame(4:5,:) = ['10';'01'];                        % type & ID
frame(6:13,:) = ['00';'13';'A2';'00';'41';'95';'83';'04'];    %64bit address
frame(14:15,:) = ['FF';'FE'];       %16bit address
frame(16,:) = '00';
frame(17,:) = '00';
frame(18:19,:) = ['48';'69'];  %data
frame(20,:) = '2E';   %sum

frame = hex2dec(frame)

fopen(s1)
ts = srl_write(s1, frame)   %error ->  Invalid call to srl_write.

%fwrite(s1, frame, 'uint8')       <- this didnt work either  



Thanks for the help.
--
Grant Wise

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