Hello,

I'm trying to execute the following program in Openmodelica. I want to use the output of the first function as input of the second one.

model ChirpSignal
  record Rec
    Integer a1;
    Real b;
    Real c;
    Real d;
    Real d1;
    Real d2;
    Real d3;
    Real e;
  end Rec;

  record pp_actor
    Integer a;
  end pp_actor;

  record rec
    pp_actor base;
    Rec mstdatas;
  end rec;

  function Chirp
    output String id;
    output rec u;
 
    external chirp(id, u) annotation(Library = "Chirp");
  end Chirp;

  function mafonction
    output Integer alpha;
    output rec u;
 
    external alpha = mafonction(u) annotation(Library = "Chirp");
  end mafonction;

  String id;
  rec u;
  Integer alpha;
equation
  (id, u) = Chirp();
  (alpha, u) = mafonction();
end ChirpSignal;

this program is linked as a binary library to the following one :

typedef struct  {

int id1;
double id2;
double id3;
double id4;
double T_Temp[4] ;

}Rec;

typedef struct  {
int c;
}pp_tp_actor_t;

typedef struct  {
pp_tp_actor_t base;
Rec mstdatas;
}rec;



rec* chirp(const char* id,rec* test)
{

test->mstdatas.id1 = 6;
test->mstdatas.id2 = 5;
test->mstdatas.id3 = 4;
test->mstdatas.id4 = 3;
int i=0;
for (i=0; i<4; i++)
    {
test->mstdatas.T_Temp[i]=2;
}
test->base.c = 5;
}

int mafonction(rec* self)
{
    self->mstdatas.id1 = 2;
     self->mstdatas.id2 = 2;
      self->mstdatas.id3 = 2;
       self->mstdatas.id4 = 2;

    return 2;
};

I don't understand why is this not working. I get the following error :

[1] 13:08:27 Symbolique Erreur
Too many equations, over-determined system. The model has 20 equation(s) and 11 variable(s).

[2] 13:08:27 Traduction Erreur
Internal error pre-optimization module clockPartitioning failed.

[3] 13:08:27 Symbolique Erreur
[ChirpSignal: 40:3-40:20]: Found equation without time-dependent variables: u.base.a = 5


Thank you
olaama