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/DSP_Lib_TestSuite/RefLibs/src/ComplexMathFunctions/cmplx_dot_prod.c | 72 ++++++++++++++++++++++++++++++++++++
1 files changed, 72 insertions(+), 0 deletions(-)
diff --git a/mcu_sdk/gd32f103/rk_eFire/Board/CMSIS/DSP/DSP_Lib_TestSuite/RefLibs/src/ComplexMathFunctions/cmplx_dot_prod.c b/mcu_sdk/gd32f103/rk_eFire/Board/CMSIS/DSP/DSP_Lib_TestSuite/RefLibs/src/ComplexMathFunctions/cmplx_dot_prod.c
new file mode 100644
index 0000000..19b1e1c
--- /dev/null
+++ b/mcu_sdk/gd32f103/rk_eFire/Board/CMSIS/DSP/DSP_Lib_TestSuite/RefLibs/src/ComplexMathFunctions/cmplx_dot_prod.c
@@ -0,0 +1,72 @@
+#include "ref.h"
+
+void ref_cmplx_dot_prod_f32(
+ float32_t * pSrcA,
+ float32_t * pSrcB,
+ uint32_t numSamples,
+ float32_t * realResult,
+ float32_t * imagResult)
+{
+ float32_t sumr, sumi;
+ uint32_t i;
+
+ sumr = 0;
+ sumi = 0;
+
+ for(i=0;i<numSamples*2;i+=2)
+ {
+ sumr += pSrcA[i] * pSrcB[i] - pSrcA[i+1] * pSrcB[i+1];
+ sumi += pSrcA[i] * pSrcB[i+1] + pSrcA[i+1] * pSrcB[i];
+ }
+
+ *realResult = sumr;
+ *imagResult = sumi;
+}
+
+void ref_cmplx_dot_prod_q31(
+ q31_t * pSrcA,
+ q31_t * pSrcB,
+ uint32_t numSamples,
+ q63_t * realResult,
+ q63_t * imagResult)
+{
+ q63_t sumr, sumi;
+ uint32_t i;
+
+ sumr = 0;
+ sumi = 0;
+
+ for(i=0;i<numSamples*2;i+=2)
+ {
+ //shifting down 14 here to provide guard bits
+ sumr += (((q63_t)pSrcA[i] * pSrcB[i] ) >> 14) - (((q63_t)pSrcA[i+1] * pSrcB[i+1]) >> 14);
+ sumi += (((q63_t)pSrcA[i] * pSrcB[i+1]) >> 14) + (((q63_t)pSrcA[i+1] * pSrcB[i] ) >> 14);
+ }
+
+ *realResult = sumr;
+ *imagResult = sumi;
+}
+
+void ref_cmplx_dot_prod_q15(
+ q15_t * pSrcA,
+ q15_t * pSrcB,
+ uint32_t numSamples,
+ q31_t * realResult,
+ q31_t * imagResult)
+{
+ q63_t sumr, sumi;
+ uint32_t i;
+
+ sumr = 0;
+ sumi = 0;
+
+ for(i=0;i<numSamples*2;i+=2)
+ {
+ sumr += (q31_t)pSrcA[i] * pSrcB[i] - (q31_t)pSrcA[i+1] * pSrcB[i+1];
+ sumi += (q31_t)pSrcA[i] * pSrcB[i+1] + (q31_t)pSrcA[i+1] * pSrcB[i];
+ }
+
+ //shifting down 6 at the end here because there are already 32 guard bits available, this method is more accurate
+ *realResult = (q31_t)(sumr >> 6);
+ *imagResult = (q31_t)(sumi >> 6);
+}
--
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