The CMSIS DSP 5 library
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functions/ControllerFunctions/arm_pid_reset_q31.c@1:24714b45cd1b, 2018-06-20 (annotated)
- Committer:
- xorjoep
- Date:
- Wed Jun 20 11:21:31 2018 +0000
- Revision:
- 1:24714b45cd1b
The newest version of the CMSIS library
Who changed what in which revision?
User | Revision | Line number | New contents of line |
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xorjoep | 1:24714b45cd1b | 1 | /* ---------------------------------------------------------------------- |
xorjoep | 1:24714b45cd1b | 2 | * Project: CMSIS DSP Library |
xorjoep | 1:24714b45cd1b | 3 | * Title: arm_pid_reset_q31.c |
xorjoep | 1:24714b45cd1b | 4 | * Description: Q31 PID Control reset function |
xorjoep | 1:24714b45cd1b | 5 | * |
xorjoep | 1:24714b45cd1b | 6 | * $Date: 27. January 2017 |
xorjoep | 1:24714b45cd1b | 7 | * $Revision: V.1.5.1 |
xorjoep | 1:24714b45cd1b | 8 | * |
xorjoep | 1:24714b45cd1b | 9 | * Target Processor: Cortex-M cores |
xorjoep | 1:24714b45cd1b | 10 | * -------------------------------------------------------------------- */ |
xorjoep | 1:24714b45cd1b | 11 | /* |
xorjoep | 1:24714b45cd1b | 12 | * Copyright (C) 2010-2017 ARM Limited or its affiliates. All rights reserved. |
xorjoep | 1:24714b45cd1b | 13 | * |
xorjoep | 1:24714b45cd1b | 14 | * SPDX-License-Identifier: Apache-2.0 |
xorjoep | 1:24714b45cd1b | 15 | * |
xorjoep | 1:24714b45cd1b | 16 | * Licensed under the Apache License, Version 2.0 (the License); you may |
xorjoep | 1:24714b45cd1b | 17 | * not use this file except in compliance with the License. |
xorjoep | 1:24714b45cd1b | 18 | * You may obtain a copy of the License at |
xorjoep | 1:24714b45cd1b | 19 | * |
xorjoep | 1:24714b45cd1b | 20 | * www.apache.org/licenses/LICENSE-2.0 |
xorjoep | 1:24714b45cd1b | 21 | * |
xorjoep | 1:24714b45cd1b | 22 | * Unless required by applicable law or agreed to in writing, software |
xorjoep | 1:24714b45cd1b | 23 | * distributed under the License is distributed on an AS IS BASIS, WITHOUT |
xorjoep | 1:24714b45cd1b | 24 | * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
xorjoep | 1:24714b45cd1b | 25 | * See the License for the specific language governing permissions and |
xorjoep | 1:24714b45cd1b | 26 | * limitations under the License. |
xorjoep | 1:24714b45cd1b | 27 | */ |
xorjoep | 1:24714b45cd1b | 28 | |
xorjoep | 1:24714b45cd1b | 29 | #include "arm_math.h" |
xorjoep | 1:24714b45cd1b | 30 | |
xorjoep | 1:24714b45cd1b | 31 | /** |
xorjoep | 1:24714b45cd1b | 32 | * @addtogroup PID |
xorjoep | 1:24714b45cd1b | 33 | * @{ |
xorjoep | 1:24714b45cd1b | 34 | */ |
xorjoep | 1:24714b45cd1b | 35 | |
xorjoep | 1:24714b45cd1b | 36 | /** |
xorjoep | 1:24714b45cd1b | 37 | * @brief Reset function for the Q31 PID Control. |
xorjoep | 1:24714b45cd1b | 38 | * @param[in] *S Instance pointer of PID control data structure. |
xorjoep | 1:24714b45cd1b | 39 | * @return none. |
xorjoep | 1:24714b45cd1b | 40 | * \par Description: |
xorjoep | 1:24714b45cd1b | 41 | * The function resets the state buffer to zeros. |
xorjoep | 1:24714b45cd1b | 42 | */ |
xorjoep | 1:24714b45cd1b | 43 | void arm_pid_reset_q31( |
xorjoep | 1:24714b45cd1b | 44 | arm_pid_instance_q31 * S) |
xorjoep | 1:24714b45cd1b | 45 | { |
xorjoep | 1:24714b45cd1b | 46 | |
xorjoep | 1:24714b45cd1b | 47 | /* Clear the state buffer. The size will be always 3 samples */ |
xorjoep | 1:24714b45cd1b | 48 | memset(S->state, 0, 3U * sizeof(q31_t)); |
xorjoep | 1:24714b45cd1b | 49 | } |
xorjoep | 1:24714b45cd1b | 50 | |
xorjoep | 1:24714b45cd1b | 51 | /** |
xorjoep | 1:24714b45cd1b | 52 | * @} end of PID group |
xorjoep | 1:24714b45cd1b | 53 | */ |