Fixed-Point Blockset

Detect Rise Positive

Detect a rising edge when a signal's value increases to a strictly positive value, and its previous value was nonpositive

Library

Edge Detect

Description

The Detect Rise Positive block is a masked block that determines if the input is strictly positive, and its previous value was nonpositive where

• The output is true (not 0), when the input signal is greater than zero, and its previous value was less than zero.
• The output is false (equal to 0), when the input is negative or zero, or if the input is positive, its previous value was also positive.

Parameters and Dialog Box

Initial condition

Set the initial condition of the Boolean expression U/z > 0.

Characteristics

Input Port	Any data type supported by the blockset
Output Port	An 8-bit unsigned integer
Direct Feedthrough	Yes
Scalar Expansion	Yes
Vectorized	Yes

See Also

Detect Change, Detect Decrease, Detect Fall Negative, Detect Fall Nonpositive, Detect Increase, Detect Rise Nonnegative

Detect Rise Nonnegative

Difference