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diff --git a/src/modules/mathlib/CMSIS/DSP_Lib/Source/ControllerFunctions/arm_pid_init_f32.c b/src/modules/mathlib/CMSIS/DSP_Lib/Source/ControllerFunctions/arm_pid_init_f32.c
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+/* ----------------------------------------------------------------------
+* Copyright (C) 2010 ARM Limited. All rights reserved.
+*
+* $Date: 15. February 2012
+* $Revision: V1.1.0
+*
+* Project: CMSIS DSP Library
+* Title: arm_pid_init_f32.c
+*
+* Description: Floating-point PID Control initialization function
+*
+*
+* Target Processor: Cortex-M4/Cortex-M3/Cortex-M0
+*
+* Version 1.1.0 2012/02/15
+* Updated with more optimizations, bug fixes and minor API changes.
+*
+* Version 1.0.10 2011/7/15
+* Big Endian support added and Merged M0 and M3/M4 Source code.
+*
+* Version 1.0.3 2010/11/29
+* Re-organized the CMSIS folders and updated documentation.
+*
+* Version 1.0.2 2010/11/11
+* Documentation updated.
+*
+* Version 1.0.1 2010/10/05
+* Production release and review comments incorporated.
+*
+* Version 1.0.0 2010/09/20
+* Production release and review comments incorporated.
+* ------------------------------------------------------------------- */
+
+#include "arm_math.h"
+
+ /**
+ * @addtogroup PID
+ * @{
+ */
+
+/**
+ * @brief Initialization function for the floating-point PID Control.
+ * @param[in,out] *S points to an instance of the PID structure.
+ * @param[in] resetStateFlag flag to reset the state. 0 = no change in state & 1 = reset the state.
+ * @return none.
+ * \par Description:
+ * \par
+ * The <code>resetStateFlag</code> specifies whether to set state to zero or not. \n
+ * The function computes the structure fields: <code>A0</code>, <code>A1</code> <code>A2</code>
+ * using the proportional gain( \c Kp), integral gain( \c Ki) and derivative gain( \c Kd)
+ * also sets the state variables to all zeros.
+ */
+
+void arm_pid_init_f32(
+ arm_pid_instance_f32 * S,
+ int32_t resetStateFlag)
+{
+
+ /* Derived coefficient A0 */
+ S->A0 = S->Kp + S->Ki + S->Kd;
+
+ /* Derived coefficient A1 */
+ S->A1 = (-S->Kp) - ((float32_t) 2.0 * S->Kd);
+
+ /* Derived coefficient A2 */
+ S->A2 = S->Kd;
+
+ /* Check whether state needs reset or not */
+ if(resetStateFlag)
+ {
+ /* Clear the state buffer. The size will be always 3 samples */
+ memset(S->state, 0, 3u * sizeof(float32_t));
+ }
+
+}
+
+/**
+ * @} end of PID group
+ */