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Floating point unit demonstration on STM32 …
May 2016 DocID022737 Rev 21/311AN4044 Application noteFloating point unit demonstration on STM32 microcontrollers IntroductionThis application note explains how to use Floating - point units (FPUs) available in STM32 Cortex -M4 and STM32 Cortex -M7 microcontrollers, and also provides a short overview of: Floating - point X-CUBE-FPUDEMO firmware is developed to promote double precision FPUs, and to demonstrate the improvements coming from the use of this hardware examples are given in Section 4: Application Rev 2 Contents1 Floating - point arithmetic .. or Floating - point .. unit (FPU) .. 72 IEEE standard for Floating - point arithmetic (IEEE 754) .. formats .. numbers .. numbers .. (Not-a-Number) .. modes .. operations .. conversions .. and exception handling .. 123 STM32 Cortex -M Floating - point unit (FPU) .. operating modes .. status and control register (FPSCR) .. condition bits: N, Z, C, V.
accelerated using a Floating-point unit (FPU) integrated in the processor. 1.1 Fixed-point or floating-point One alternative to floating-point is fixed-point, where the exponent field is fixed. But if fixed-point is giving better calculation speed on FPU-less processors, the range of numbers and their dynamic is low.
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