To display the Fixed-Point Blockset library, type fixpt at the MATLAB prompt or select the Fixed-Point Blockset in the Simulink Library Browser. The Fixed-Point Blockset library is shown below.
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Fixed-Point Blocks
The Fixed-Point Blockset blocks are grouped into the following categories based on usage.
Math Blocks
Block Name | Description |
Output the absolute value of the input. | |
Generate a constant value. | |
Generate the dot product. | |
Multiply the input by a constant. | |
Multiply the input by a constant matrix. | |
Output the minimum or maximum input value. | |
Multiply or divide inputs. | |
Indicate the sign of the input. | |
Add or subtract inputs. | |
Negate the input. |
Conversion Blocks
Block Name | Description |
Convert from one Fixed-Point Blockset data type to another. | |
Convert from one Fixed-Point Blockset data type to another, and inherit the data type and scaling. | |
Configure the data type and scaling of the propagated signal based on information from the reference signals. | |
Convert a Simulink data type to a Fixed-Point Blockset data type. | |
Convert a Simulink data type to a Fixed-Point Blockset data type, and inherit the data type and scaling. | |
Convert a Fixed-Point Blockset data type to a Simulink data type. |
Look-Up Table Blocks
Block Name | Description |
Approximate a one-dimensional function using a selected look-up method and a dynamically specified table. | |
Approximate a one-dimensional function using a selected look-up method. | |
Approximate a two-dimensional function using a selected look-up method. |
Logical and Comparison Blocks
Block Name | Description |
Perform the specified bitwise operation on the inputs. | |
Provide a region of zero output. | |
Perform the specified logical operation on the inputs. | |
Switch output between different inputs based on the value of the first input. | |
Perform the specified relational operation on the inputs. | |
Switch output between two constants. | |
Bound the range of the input. | |
Switch output between the first input and the third input based on the value of the second input. |
Discrete Time Blocks
Block Name | Description |
Implement a fixed-point finite impulse response (FIR) filter. | |
Delay a signal N sample periods. | |
Delay a scalar signal multiple sample periods, and output all the delayed versions. | |
Delay a signal one sample period. | |
Implement a zero-order hold of one sample period. |
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