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C2000 IQN1 x IQN2

Multiply IQ numbers with different Q formats

Library

Embedded Coder® Support Package for Texas Instruments™ C2000™ Processors/ Optimization/ C28x IQmath

Embedded Coder Support Package for Texas Instruments C2000 F28M3x Concerto™ Processors Processors/ Optimization/ C28x IQmath

Description

This block multiples two IQ numbers when the numbers are represented in different Q formats. The format of the result is specified in the dialog box.

Note

The implementation of this block does not call the corresponding Texas Instruments library function during code generation. The TI function uses a global Q setting and the MathWorks® code used by this block dynamically adjusts the Q format based on the block input. See Using the IQmath Library for more information.

Parameters

Q value

Q value from 1 to 30 that specifies the precision of the output

References

For detailed information on the IQmath library, see the user's guide for the C28x IQmath Library - A Virtual Floating Point Engine, Literature Number SPRC087, available at the Texas Instruments Web site. The user's guide is included in the zip file download that also contains the IQmath library (registration required).