Is there is problem with support package or arduino, I am using arduino uno.
MATLAB: Hi, I am using the ardunio support package in MATLAB to generate pwm pulses, but when I checked the PWM pulses at arduino digital pin with DSO it is not showing the correct frequency as 4kHz instead it shows smth around 200Hz. Can anyone suggest
arduinoelectric_motor_controlmakerpower_conversion_controlpower_electronics_control
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In the Matlab Arduino package there is the file:
c:\ProgramData\MATLAB\SupportPackages\R2017a\toolbox\matlab\hardware\supportpackages\arduinoio\src\ArduinoServer.ino
Modify it setup() function:
void setup()
{ MWArduino.begin([connection_type]);
TCCR1A = TCCR1A & 0xe0 | 1;
TCCR1B = TCCR1B & 0xe0 | 0x09;
}
f=1e3;a0=0;AmpSin=5; %sample wave values
t0=0;tf=0.01;Ts=1e-6; %time vector and resolution
v=0;AmpPwm=1; %Pwm options, increase v for lower dutty-cycle
t=t0:Ts:tf; %create the time vector
fun=AmpSin*sin(2*pi*f*t+a0); %create the function
pwm=AmpPwm*(fun>v); %get the pwm
%plot it just to know if its working
clfplot(t,fun)hold onplot(t,pwm,'r')Alternative implementation in simulink
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