eldo_user

Eldo Control Language
Simulation Dynamic Control
...
.define_task t_rc
set v = 10
set r = 20
set c = 0.1
set res = simulation(tb_rc(p_v=v, p_r=r, p_c=c),
/* Pass the testbench arguments to the callback. */
+ callback=f_callback_rc(p_v=v, p_r=r, p_c=c),
+ condition="v(2) > " + (0.632 * v))
if (res.simu_status == 0)
fprint(stdout, "Simulation succeeded.\n")
else
fprint(stdout, "Simulation failed.\n")
endif
.end_define_task
.define_function f_callback_rc (p_v=1, p_c=1, p_r=1)
fprint(stdout, "The simulation of 'tb_rc p_v=%.1f p_c=%.1f p_r=%.1f' has
been stopped " +
+ "at t = %.1f s " +
+ "because the expected condition has been met.\n",
+ _simu_get("time"),
+ p_v, p_r, p_c)
return 1
.end_define_function
.t_rc
It is possible to do the same if the callback needs to have output arguments.
If a periodic callback needs to save some values so that it can retrieve them the next time it is
called, then it has to define one input and one output variable for each of them, to be able to
store and get the result from a local variable defined in the main task.
See “Tasks” on page 814, “Variables” on page 821, “Flow Control Statements” on page 835,
“Defining and Running Simulations” on page 841, and the fprint function for more information
on the concepts used in the example.
Example 2
This example shows how to sample a signal using a periodic callback and store the values in an
array defined in the main task. The current index in the array also needs to be saved.
1022
Eldo® User's Manual, 15.3