Error (E529) at sc_start()

[Markus]

Hi,

 

I'm trying to integrate SystemC into a software project in order to periodically simulate hardware parts. At the entry point of the simulation, I tried a minimalistic example:

SC_MODULE(test){
    SC_CTOR(test){};
};

test testObj("test");
sc_start(1, SC_US);  // this is where the error occurs

Ther error message is Error (E529) insert module failed runninIn file ../../src/sysc/kernel/sc_module_registry.cpp:47" thrown in the test body.

I tried utilizing sc_main and played around with sc_elab_and_sim() a bit, but it doesn't seem to make a difference.

 

Thanks in advance,

Markus

[ivan.bodrov]

Hi,

 

Example you provided works fine for me. I think it is not complete (definetly not, since it has no sc_main or main). And I think it is previous line that throws in your case.

Full code (works fine):

#include <systemc.h>

int sc_main(int, char *[])
{
    SC_MODULE(test){
        SC_CTOR(test){};
    };

    test testObj("test");
    sc_start(1, SC_US);
    return 0;
}

This error means that you try to instantiate module after calling sc_start() (so you do this in simulation phase, not elaboration phase).

 

From LRM (5.2 sc_module):

 

5.2.3 Constraints on usage

Objects of class sc_module can only be constructed during elaboration. It shall be an error to instantiate a

module during simulation.

 

You can also check chapter 4. Elaboration and simulation semantics

 

Code that reproduces your error should be:

#include <systemc.h>

int sc_main(int, char *[])
{
    SC_MODULE(test){
        SC_CTOR(test){};
    };

    sc_start();
    test testObj("test");
    sc_start(1, SC_US);
    return 0;
}

[saeed isa]

On 11/23/2015 at 2:51 AM, ivan.bodrov said:

Hi,

 

Example you provided works fine for me. I think it is not complete (definetly not, since it has no sc_main or main). And I think it is previous line that throws in your case.

Full code (works fine):

#include <systemc.h>

int sc_main(int, char *[])
{
    SC_MODULE(test){
        SC_CTOR(test){};
    };

    test testObj("test");
    sc_start(1, SC_US);
    return 0;
}

This error means that you try to instantiate module after calling sc_start() (so you do this in simulation phase, not elaboration phase).

 

From LRM (5.2 sc_module):

 

You can also check chapter 4. Elaboration and simulation semantics

 

Code that reproduces your error should be:

#include <systemc.h>

int sc_main(int, char *[])
{
    SC_MODULE(test){
        SC_CTOR(test){};
    };

    sc_start();
    test testObj("test");
    sc_start(1, SC_US);
    return 0;
}

Thanks for explaning
How can I register new model after sc_start
such as:
test testObj("test");
sc_start(1,...);

del test;

test testObj("test2");
sc_start(1,...);

 

Thanks in advance!

[Philipp A Hartmann]

4 hours ago, saeed isa said:

How can I register new model after sc_start

Short answer: You can't. See this answer from a related discussion:

 Greetings from Duisburg,
  Philipp