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C2000 IQN x IQN

Multiply IQ numbers with same Q format

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 multiplies two IQ numbers. Optionally, it can also round and saturate the result.

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

Multiply option

Type of multiplication to perform:

  • Multiply — Multiply the numbers.

  • Multiply with Rounding — Multiply the numbers and round the result.

  • Multiply with Rounding and Saturation — Multiply the numbers and round and saturate the result to the maximum value.

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).