/* ----------------------------------------------------------------------
 * Copyright (C) 2010-2014 ARM Limited. All rights reserved.
 *
 * $Date:        19. March 2015
 * $Revision:   V.1.4.5
 *
 * Project:         CMSIS DSP Library
 * Title:	    arm_pid_reset_q31.c
 *
 * Description:	Q31 PID Control reset function
 *
 * Target Processor: Cortex-M4/Cortex-M3/Cortex-M0
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *   - Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 *   - Redistributions in binary form must reproduce the above copyright
 *     notice, this list of conditions and the following disclaimer in
 *     the documentation and/or other materials provided with the
 *     distribution.
 *   - Neither the name of ARM LIMITED nor the names of its contributors
 *     may be used to endorse or promote products derived from this
 *     software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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 * ------------------------------------------------------------------- */

#include "arm_math.h"

/**
 * @addtogroup PID
 * @{
 */

/**
 * @brief  Reset function for the Q31 PID Control.
 * @param[in] *S	Instance pointer of PID control data structure.
 * @return none.
 * \par Description:
 * The function resets the state buffer to zeros.
 */
void arm_pid_reset_q31(
  arm_pid_instance_q31 *S)
{
    /* Clear the state buffer.  The size will be always 3 samples */
    memset(S->state, 0, 3u * sizeof(q31_t));
}

/**
 * @} end of PID group
 */
