52 lines
2.2 KiB
C
52 lines
2.2 KiB
C
/**
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* @file fc7xxx_driver_fpu.c
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* @author Flagchip051
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* @brief FC4xxx FPU driver type definition and API
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* @version 0.1.0
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* @date 2024-01-11
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*
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* @copyright Copyright (c) 2024 Flagchip Semiconductors Co., Ltd.
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*
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*/
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/* ********************************************************************************
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* Revision History:
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*
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* Version Date Initials CR# Descriptions
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* --------- ---------- ------------ ---------- ---------------
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* 0.1.0 2024-01-11 Flagchip054 N/A First version for FC7240
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******************************************************************************** */
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#include "fc7xxx_driver_fpu.h"
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/* Note: library user should add interrupt stack support, add compiler support */
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/*
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* @details @verbatim
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If only want use FPU,
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1) configure FCIDE to enable FPU compiler support, "Properties" -> C/C++ Build -> Settings -> Tool Settings -> Target Processor -> Float ABI -> FP instructions(hard) -> FPU Type set to "fpv5-sp-d16"
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2) configure FCIDE to enable FPU compiler support, "Properties" -> C/C++ Build -> Settings -> Tool Settings -> GNU Arm Cross C Compiler -> Preprocessor -> Defined symbols(-D) -> Add "__FPU_PRESENT=1" (without ")
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3) and call FPU_Enable to enable FPU at the beginning of program.
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If want to use DSP,
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1) configure FCIDE to enable FPU compiler support, Properties -> C/C++ Build -> Settings -> Tool Settings -> Target Processor -> Float ABI -> FP instructions(hard)
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2) add MACRO "DRIVER_CM7_DSP_ENABLE" in FCIDE Properties -> C/C++ General -> Paths and Symbols -> Symbols -> GNU C and GNU C++ and Assembly
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3) add Include Path to project Properties -> C/C++ General -> Paths and Symbols -> Includes -> GNU C and GNU C++ and Assembly:
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../../../../../../Template/Device/CMSIS5_590/DSP/Include
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../../../../../../Template/Device/CMSIS5_590/Core/Include
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../../../../../../Template/Device/CMSIS5_590/DSP/PrivateInclude
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4) and call FPU_Enable to enable FPU at the beginning of program.
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@endverbatim
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*/
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void FPU_Enable(void)
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{
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FPU_HWA_Enable(); /* set CP10 and CP11 Full Access */
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__DSB();
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__ISB();
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}
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void FPU_Disable(void)
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{
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FPU_HWA_Disable(); /* Access denied. Any attempted access generates a NOCP UsageFault */
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}
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