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diff --git a/Drivers/CMSIS/DSP/Source/ControllerFunctions/arm_pid_reset_q31.c b/Drivers/CMSIS/DSP/Source/ControllerFunctions/arm_pid_reset_q31.c
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index 0000000..3e9c39f
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+++ b/Drivers/CMSIS/DSP/Source/ControllerFunctions/arm_pid_reset_q31.c
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+/* ----------------------------------------------------------------------
+ * Project:      CMSIS DSP Library
+ * Title:        arm_pid_reset_q31.c
+ * Description:  Q31 PID Control reset function
+ *
+ * $Date:        23 April 2021
+ * $Revision:    V1.9.0
+ *
+ * Target Processor: Cortex-M and Cortex-A cores
+ * -------------------------------------------------------------------- */
+/*
+ * Copyright (C) 2010-2021 ARM Limited or its affiliates. All rights reserved.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Licensed under the Apache License, Version 2.0 (the License); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an AS IS BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "dsp/controller_functions.h"
+
+/**
+  @addtogroup PID
+  @{
+ */
+
+/**
+  @brief         Reset function for the Q31 PID Control.
+  @param[in,out] S  points to an instance of the Q31 PID structure
+  @return        none
+
+  @par           Details
+                   The function resets the state buffer to zeros.
+ */
+
+void arm_pid_reset_q31(
+  arm_pid_instance_q31 * S)
+{
+  /* Reset state to zero, The size will be always 3 samples */
+  memset(S->state, 0, 3U * sizeof(q31_t));
+}
+
+/**
+  @} end of PID group
+ */