initial commit

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diff --git a/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_not_u16.c b/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_not_u16.c
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index 0000000..e553d28
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+++ b/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_not_u16.c
@@ -0,0 +1,130 @@
+/* ----------------------------------------------------------------------
+ * Project:      CMSIS DSP Library
+ * Title:        arm_not_u16.c
+ * Description:  uint16_t bitwise NOT
+ *
+ * $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/basic_math_functions.h"
+
+/**
+  @ingroup groupMath
+ */
+
+/**
+  @defgroup Not Vector bitwise NOT
+
+  Compute the logical bitwise NOT.
+
+  There are separate functions for uint32_t, uint16_t, and uint8_t data types.
+ */
+
+/**
+  @addtogroup Not
+  @{
+ */
+
+/**
+  @brief         Compute the logical bitwise NOT of a fixed-point vector.
+  @param[in]     pSrc       points to input vector 
+  @param[out]    pDst       points to output vector
+  @param[in]     blockSize  number of samples in each vector
+  @return        none
+ */
+
+void arm_not_u16(
+    const uint16_t * pSrc,
+          uint16_t * pDst,
+          uint32_t blockSize)
+{
+    uint32_t blkCnt;      /* Loop counter */
+
+#if defined(ARM_MATH_MVEI) && !defined(ARM_MATH_AUTOVECTORIZE)
+    uint16x8_t vecSrc;
+
+    /* Compute 8 outputs at a time */
+    blkCnt = blockSize >> 3;
+
+    while (blkCnt > 0U)
+    {
+        vecSrc = vld1q(pSrc);
+
+        vst1q(pDst, vmvnq_u16(vecSrc) );
+
+        pSrc += 8;
+        pDst += 8;
+
+        /* Decrement the loop counter */
+        blkCnt--;
+    }
+
+    /* Tail */
+    blkCnt = blockSize & 7;
+
+    if (blkCnt > 0U)
+    {
+        mve_pred16_t p0 = vctp16q(blkCnt);
+        vecSrc = vld1q(pSrc);
+        vstrhq_p(pDst, vmvnq_u16(vecSrc), p0);
+    }
+#else
+#if defined(ARM_MATH_NEON) && !defined(ARM_MATH_AUTOVECTORIZE)
+    uint16x8_t inV;
+
+    /* Compute 8 outputs at a time */
+    blkCnt = blockSize >> 3U;
+
+    while (blkCnt > 0U)
+    {
+        inV = vld1q_u16(pSrc);
+
+        vst1q_u16(pDst, vmvnq_u16(inV) );
+
+        pSrc += 8;
+        pDst += 8;
+
+        /* Decrement the loop counter */
+        blkCnt--;
+    }
+
+    /* Tail */
+    blkCnt = blockSize & 7;
+#else
+    /* Initialize blkCnt with number of samples */
+    blkCnt = blockSize;
+#endif
+
+    while (blkCnt > 0U)
+    {
+        *pDst++ = ~(*pSrc++);
+
+        /* Decrement the loop counter */
+        blkCnt--;
+    }
+#endif /* if defined(ARM_MATH_MVEI) */
+}
+
+/**
+  @} end of Not group
+ */