Serial port slows / freezes after a few sends.
5 Ansichten (letzte 30 Tage)
Ältere Kommentare anzeigen
After sending X iterations of data over a serial port via fwrite/fprintf code begins to execute very slowly, one fwrite() call per 3 to 10 seconds. (X being nearly a random number from 3 to 1000+)
I am unsure where the problem is. The serial device is receiving the data.
clear, clc
count = 0;
delete(instrfindall)
socket = serial('COM11','BAUD',57600);
fopen(socket);
pause(3);
for i = 1:10000
count = count + 1;
disp(count)
fwrite(socket,'A','uint8')
%fprintf(socket,'%s','A')
pause (.01)
end
EDIT
Adding "stopasync(socket)" before calling "fprintf()" results in working code. Does anyone know why without "stopasync(socket)" the code fails? I currently suspect an hardware issue as the COM port is a USB port emulating a COM port.
0 Kommentare
Antworten (0)
Siehe auch
Kategorien
Mehr zu Startup and Shutdown finden Sie in Help Center und File Exchange
Produkte
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!