DmpPi::evalDmpEqns nan proofing

Signed-off-by: James Cherry <cherry@parallaxsw.com>
2021-12-13 13:27:58 -07:00 · 2021-12-13 13:27:58 -07:00 · e0998d590c
parent 96718187e1
commit e0998d590c
1 changed files with 3 additions and 0 deletions
--- a/dcalc/DmpCeff.cc
+++ b/dcalc/DmpCeff.cc
@ -960,6 +960,9 @@ DmpPi::evalDmpEqns()

  double t_vth, t_vl, slew;
  gateDelays(ceff, t_vth, t_vl, slew);
+  if (slew == 0.0)
+    throw DmpError("eqn eval failed: slew = 0");
+
  double ceff_time = slew / (vh_ - vl_);
  if (ceff_time > 1.4 * dt)
    ceff_time = 1.4 * dt;