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Simulink Blocks in DSP System Toolbox that Support Fixed-Point Design

You can view a list of blocks that support fixed-point design in documentation by filtering the blocks reference list. Click Blocks right below the blue bar at the top of the Help window, then select the Fixed-Point Conversion check box at the bottom of the left column under Extended Capability. The blocks are listed in their respective categories. You can use the table of contents in the left column to navigate between the categories. Refer to the Extended Capabilities > Fixed-Point Conversion section of each block page for any notes and limitations.

To obtain this filtered list for DSP System Toolbox™, click Blocks that Support Fixed-Point Design.

In the image below, there is a blue bar at the top written 'Documentation'. Right below that, on left, there is a contents pane. In the middle of the page, right under the blue bar, there are options that are clickable: 'All', 'Examples', 'Functions', 'Blocks', 'Apps'. In the contents pane, there are products listed. You can choose any product. However, the first product DSP System Toolbox is selected and you can see its categories listed. Below these products, there is list of extended capabilities available. The last capability is Fixed-Point Conversion with a check box infront of it. Select this check box. In the clickable options at the top, select 'Blocks'. A list of blocks appears which supports fixed-point design. You can see a small triangle next to a block name if there are any fixed-point notes and limitations listed in the respective reference page under Extended Capabilities > Fixed-Point Conversion section.

Alternatively, you can find this information in the Simulink® block data type support table for the DSP System Toolbox. To access this table, type this command in the MATLAB® Command Window.

showsignalblockdatatypetable

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