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If the block in the subsystem has a Signal Attributes tab, navigate to that tab and jump to step 3.

If there are no blocks in the subsystem with a Signal Attributes tab use the Data Type Conversion block. Add the Data Type Conversionblock to the model and continue to the next step.

For the Integer rounding mode parameter, select Round.

Clear the Saturate on integer overflow check box.

For the Output data type parameter, select a fixed-point data type.

Click the Data Type Assistant button .

For the Word length parameter, enter 8, 16, or 32.

For the Mode parameter, select Fixed point.

For the Scaling parameter, select Binary point.

Click OK.

In the Model Configuration Parameters dialog box, click the Hardware Implementation node.

For the Device vendor parameter, select Generic or Custom Processor. If you select Custom Processor proceed to step 4.

For the Device type, select Custom.

For the Signed integer division rounds to, select Zero.

For the Number of bits, set char to 16.