From aa38e5c1f48e31213ee349aa5cd6f06c85bda70d Mon Sep 17 00:00:00 2001
From: android <android@lingyun.com>
Date: Tue, 25 Jun 2024 21:49:39 +0800
Subject: [PATCH] Add GD32F103RCT6 ADC converter board SDK source code
---
mcu_sdk/gd32f103/rk_eFire/Board/CMSIS/DSP/Source/ComplexMathFunctions/arm_cmplx_conj_q31.c | 169 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 169 insertions(+), 0 deletions(-)
diff --git a/mcu_sdk/gd32f103/rk_eFire/Board/CMSIS/DSP/Source/ComplexMathFunctions/arm_cmplx_conj_q31.c b/mcu_sdk/gd32f103/rk_eFire/Board/CMSIS/DSP/Source/ComplexMathFunctions/arm_cmplx_conj_q31.c
new file mode 100644
index 0000000..af14414
--- /dev/null
+++ b/mcu_sdk/gd32f103/rk_eFire/Board/CMSIS/DSP/Source/ComplexMathFunctions/arm_cmplx_conj_q31.c
@@ -0,0 +1,169 @@
+/* ----------------------------------------------------------------------
+ * Project: CMSIS DSP Library
+ * Title: arm_cmplx_conj_q31.c
+ * Description: Q31 complex conjugate
+ *
+ * $Date: 27. January 2017
+ * $Revision: V.1.5.1
+ *
+ * Target Processor: Cortex-M cores
+ * -------------------------------------------------------------------- */
+/*
+ * Copyright (C) 2010-2017 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 "arm_math.h"
+
+/**
+ * @ingroup groupCmplxMath
+ */
+
+/**
+ * @addtogroup cmplx_conj
+ * @{
+ */
+
+/**
+ * @brief Q31 complex conjugate.
+ * @param *pSrc points to the input vector
+ * @param *pDst points to the output vector
+ * @param numSamples number of complex samples in each vector
+ * @return none.
+ *
+ * <b>Scaling and Overflow Behavior:</b>
+ * \par
+ * The function uses saturating arithmetic.
+ * The Q31 value -1 (0x80000000) will be saturated to the maximum allowable positive value 0x7FFFFFFF.
+ */
+
+void arm_cmplx_conj_q31(
+ q31_t * pSrc,
+ q31_t * pDst,
+ uint32_t numSamples)
+{
+ uint32_t blkCnt; /* loop counter */
+ q31_t in; /* Input value */
+
+#if defined (ARM_MATH_DSP)
+
+ /* Run the below code for Cortex-M4 and Cortex-M3 */
+ q31_t inR1, inR2, inR3, inR4; /* Temporary real variables */
+ q31_t inI1, inI2, inI3, inI4; /* Temporary imaginary variables */
+
+ /*loop Unrolling */
+ blkCnt = numSamples >> 2U;
+
+ /* First part of the processing with loop unrolling. Compute 4 outputs at a time.
+ ** a second loop below computes the remaining 1 to 3 samples. */
+ while (blkCnt > 0U)
+ {
+ /* C[0]+jC[1] = A[0]+ j (-1) A[1] */
+ /* Calculate Complex Conjugate and then store the results in the destination buffer. */
+ /* Saturated to 0x7fffffff if the input is -1(0x80000000) */
+ /* read real input sample */
+ inR1 = pSrc[0];
+ /* store real input sample */
+ pDst[0] = inR1;
+
+ /* read imaginary input sample */
+ inI1 = pSrc[1];
+
+ /* read real input sample */
+ inR2 = pSrc[2];
+ /* store real input sample */
+ pDst[2] = inR2;
+
+ /* read imaginary input sample */
+ inI2 = pSrc[3];
+
+ /* negate imaginary input sample */
+ inI1 = __QSUB(0, inI1);
+
+ /* read real input sample */
+ inR3 = pSrc[4];
+ /* store real input sample */
+ pDst[4] = inR3;
+
+ /* read imaginary input sample */
+ inI3 = pSrc[5];
+
+ /* negate imaginary input sample */
+ inI2 = __QSUB(0, inI2);
+
+ /* read real input sample */
+ inR4 = pSrc[6];
+ /* store real input sample */
+ pDst[6] = inR4;
+
+ /* negate imaginary input sample */
+ inI3 = __QSUB(0, inI3);
+
+ /* store imaginary input sample */
+ inI4 = pSrc[7];
+
+ /* store imaginary input samples */
+ pDst[1] = inI1;
+
+ /* negate imaginary input sample */
+ inI4 = __QSUB(0, inI4);
+
+ /* store imaginary input samples */
+ pDst[3] = inI2;
+
+ /* increment source pointer by 8 to proecess next samples */
+ pSrc += 8U;
+
+ /* store imaginary input samples */
+ pDst[5] = inI3;
+ pDst[7] = inI4;
+
+ /* increment destination pointer by 8 to process next samples */
+ pDst += 8U;
+
+ /* Decrement the loop counter */
+ blkCnt--;
+ }
+
+ /* If the numSamples is not a multiple of 4, compute any remaining output samples here.
+ ** No loop unrolling is used. */
+ blkCnt = numSamples % 0x4U;
+
+#else
+
+ /* Run the below code for Cortex-M0 */
+ blkCnt = numSamples;
+
+
+#endif /* #if defined (ARM_MATH_DSP) */
+
+ while (blkCnt > 0U)
+ {
+ /* C[0]+jC[1] = A[0]+ j (-1) A[1] */
+ /* Calculate Complex Conjugate and then store the results in the destination buffer. */
+ /* Saturated to 0x7fffffff if the input is -1(0x80000000) */
+ *pDst++ = *pSrc++;
+ in = *pSrc++;
+ *pDst++ = (in == INT32_MIN) ? INT32_MAX : -in;
+
+ /* Decrement the loop counter */
+ blkCnt--;
+ }
+}
+
+/**
+ * @} end of cmplx_conj group
+ */
--
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