/* Copyright Statement:
 *
 * This software/firmware and related documentation ("AutoChips Software") are
 * protected under relevant copyright laws. The information contained herein is
 * confidential and proprietary to AutoChips Inc. and/or its licensors. Without
 * the prior written permission of AutoChips inc. and/or its licensors, any
 * reproduction, modification, use or disclosure of AutoChips Software, and
 * information contained herein, in whole or in part, shall be strictly
 * prohibited.
 *
 * AutoChips Inc. (C) 2016. All rights reserved.
 *
 * BY OPENING THIS FILE, RECEIVER HEREBY UNEQUIVOCALLY ACKNOWLEDGES AND AGREES
 * THAT THE SOFTWARE/FIRMWARE AND ITS DOCUMENTATIONS ("AUTOCHIPS SOFTWARE")
 * RECEIVED FROM AUTOCHIPS AND/OR ITS REPRESENTATIVES ARE PROVIDED TO RECEIVER
 * ON AN "AS-IS" BASIS ONLY. AUTOCHIPS EXPRESSLY DISCLAIMS ANY AND ALL
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 * WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR
 * NONINFRINGEMENT. NEITHER DOES AUTOCHIPS PROVIDE ANY WARRANTY WHATSOEVER WITH
 * RESPECT TO THE SOFTWARE OF ANY THIRD PARTY WHICH MAY BE USED BY,
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 * SOFTWARE. AUTOCHIPS SHALL ALSO NOT BE RESPONSIBLE FOR ANY AUTOCHIPS SOFTWARE
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 * ENTIRE AND CUMULATIVE LIABILITY WITH RESPECT TO THE AUTOCHIPS SOFTWARE
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 * AUTOCHIPS SOFTWARE AT ISSUE, OR REFUND ANY SOFTWARE LICENSE FEES OR SERVICE
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 */
#include "ac780x.h"
#include "ac780x_gpio.h"
#include "ac780x_mmdivsqrt.h"
#include "ac780x_mmdivsqrt_reg.h"
#include "math.h"

int32_t squareRootResult = 0;         //开方根

//int32_t rcndx = 2024;
//int32_t rcndy = 8192;

int32_t rcndx = -8;
int32_t rcndy = 32768;

/**
*
* @param[in] none
*
* @return none
*
* @brief
* 开方根计算
*/
void sqrt_calculate(void)
{
    GPIO_SetDir(GPIOA, GPIO_PIN3, GPIO_OUT);

    /* Square root prototype: sqrt(x^2+y^2) */
    /*开方根*/
    MMDIVSQRT_CalSquareRoot(rcndx, rcndy, &squareRootResult); //

    while (1)
    {
        GPIOA->ODR |= 0x08;

        MMDIVSQRT_CalSquareRoot(rcndx, rcndy, &squareRootResult); //1.29us
        //squareRootResult = sqrt((rcndx*rcndx)+(rcndy*rcndy)); //19.4us
        GPIOA->ODR &= 0xF7;
    }
}
