Yeh It can be possible with Data store memory block.
Make a Variable 'Var' in stateflow and change its scope to Data store memory .
You can also control the variable storage class by resolving data store memory with simulink signal.
The generated code looks like:
/* Real-time model */
RT_MODEL_Chart_T Chart_M_;
RT_MODEL_Chart_T *const Chart_M = &Chart_M_;
/* Model step function */
void Chart_step(void)
{
/* Chart: '<Root>/Chart' */
/* Re-use inputs */
if (Var > 10) {
/* NEW_PATTERN */
Var = 10;
}
/* End of Chart: '<Root>/Chart' */
}
