1 /* ----------------------------------------------------------------------
2 * Project: CMSIS DSP Library
3 * Title: arm_pid_reset_q15.c
4 * Description: Q15 PID Control reset function
5 *
6 * $Date: 23 April 2021
7 * $Revision: V1.9.0
8 *
9 * Target Processor: Cortex-M and Cortex-A cores
10 * -------------------------------------------------------------------- */
11 /*
12 * Copyright (C) 2010-2021 ARM Limited or its affiliates. All rights reserved.
13 *
14 * SPDX-License-Identifier: Apache-2.0
15 *
16 * Licensed under the Apache License, Version 2.0 (the License); you may
17 * not use this file except in compliance with the License.
18 * You may obtain a copy of the License at
19 *
20 * www.apache.org/licenses/LICENSE-2.0
21 *
22 * Unless required by applicable law or agreed to in writing, software
23 * distributed under the License is distributed on an AS IS BASIS, WITHOUT
24 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
25 * See the License for the specific language governing permissions and
26 * limitations under the License.
27 */
28
29 #include "dsp/controller_functions.h"
30
31 /**
32 @addtogroup PID
33 @{
34 */
35
36 /**
37 @brief Reset function for the Q15 PID Control.
38 @param[in,out] S points to an instance of the Q15 PID structure
39
40 @par Details
41 The function resets the state buffer to zeros.
42 */
43
arm_pid_reset_q15(arm_pid_instance_q15 * S)44 void arm_pid_reset_q15(
45 arm_pid_instance_q15 * S)
46 {
47 /* Reset state to zero, The size will be always 3 samples */
48 memset(S->state, 0, 3U * sizeof(q15_t));
49 }
50
51 /**
52 @} end of PID group
53 */
54
