Generates a random float value in exponential distribution from lo to hi each time the trigger signal changes from nonpositive to positive values lo and hi must both have the same sign and be non-zero.
| lo |
Lower limit of the output range. |
| hi |
Upper limit of the output range. |
| trig |
The trigger. Trigger can be any signal. A trigger happens when the signal changes from non-positive to positive. |