STMicroelectronics AN4044 Application Note Using FPU with STM32F4 MCUs

About this manual

This document provides an overview of floating-point arithmetic, the IEEE 754 standard, and the specific implementation of the Floating-Point Unit (FPU) in the STM32F405/07xx and STM32F415/417xx microcontroller families. It details the hardware capabilities of the FPU, including special operating modes, status registers, and exception management.

The note also covers the programming model and specific FPU instructions for arithmetic, comparison, conversion, and data loading/storing. An application example using the Julia Set is provided to demonstrate the implementation of mathematical algorithms on these microcontrollers.

What's inside

• Floating-point arithmetic
• IEEE 754 standard
• STM32F4 floating-point unit
• FPSCR register
• Exception management
• FPU instructions
• Application example

Specifications

Frequently asked questions

What microcontrollers are covered in this application note?

The document covers STM32F405/07xx and STM32F415/417xx high-performance MCUs with DSP and FPU instructions.

Which development tool is mentioned as applicable?

The STM3240G-EVAL evaluation board is listed as an applicable development tool.