How to use bus signal from simulink as struct in the matlab function block using coder.ceval?
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I want to use my external C code in matlab function block of simulink and I got an error message stated below.
Passing incompatible type for argument 1 of external C function 'AC_Guidance' with coder.ceval. Function 'AC Control law/MATLAB Function1' (#157.182.189), line 9, column 30
How can I resolve this problem? Here is my C code.
void MVUS_Guidance(struct Waypoint wpt_cur, struct Waypoint wpt_pas, struct UAV_States states, double* Velocity, double* Altitude, double* Heading, double* Path_error)
{
double LLA_cur[3];
double LLA_pass[3];
double LLA_ac[3];
LLA_cur[0] = wpt_cur.Latitude;
LLA_cur[1] = wpt_cur.Longitude;
LLA_cur[2] = wpt_cur.Altitude;
LLA_pass[0] = wpt_pas.Latitude;
LLA_pass[1] = wpt_pas.Longitude;
LLA_pass[2] = wpt_pas.Altitude;
LLA_ac[0] = states.GPS_Lat;
LLA_ac[1] = states.GPS_Lon;
LLA_ac[2] = states.GPS_Alt;
...
}
and here is my code in the matlab function block.
function [Velocity, Altitude, Heading, Path_error] = MVUS_Guidance(WPT_cur, WPT_pas, States)
Velocity = 0;
Altitude = 0;
Heading = 0;
Path_error = 0;
coder.ceval('MVUS_Guidance', WPT_cur, WPT_pas, States, coder.ref(Velocity), coder.ref(Altitude), coder.ref(Heading), coder.ref(Path_error));
end
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