1 /* ---------------------------------------------------------------------- 2 * Project: CMSIS DSP Library 3 * Title: arm_common_tables.h 4 * Description: Extern declaration for common tables 5 * 6 * $Date: 27. January 2017 7 * $Revision: V.1.5.1 8 * 9 * Target Processor: Cortex-M cores 10 * -------------------------------------------------------------------- */ 11 /* 12 * Copyright (C) 2010-2017 ARM Limited or its affiliates. All rights reserved. 13 * 14 * SPDX-License-Identifier: Apache-2.0 15 * 16 * Licensed under the Apache License, Version 2.0 (the License); you may 17 * not use this file except in compliance with the License. 18 * You may obtain a copy of the License at 19 * 20 * www.apache.org/licenses/LICENSE-2.0 21 * 22 * Unless required by applicable law or agreed to in writing, software 23 * distributed under the License is distributed on an AS IS BASIS, WITHOUT 24 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 25 * See the License for the specific language governing permissions and 26 * limitations under the License. 27 */ 28 29 #ifndef _ARM_COMMON_TABLES_H 30 #define _ARM_COMMON_TABLES_H 31 32 #include "arm_math.h" 33 34 extern const uint16_t armBitRevTable[1024]; 35 extern const q15_t armRecipTableQ15[64]; 36 extern const q31_t armRecipTableQ31[64]; 37 extern const float32_t twiddleCoef_16[32]; 38 extern const float32_t twiddleCoef_32[64]; 39 extern const float32_t twiddleCoef_64[128]; 40 extern const float32_t twiddleCoef_128[256]; 41 extern const float32_t twiddleCoef_256[512]; 42 extern const float32_t twiddleCoef_512[1024]; 43 extern const float32_t twiddleCoef_1024[2048]; 44 extern const float32_t twiddleCoef_2048[4096]; 45 extern const float32_t twiddleCoef_4096[8192]; 46 #define twiddleCoef twiddleCoef_4096 47 extern const q31_t twiddleCoef_16_q31[24]; 48 extern const q31_t twiddleCoef_32_q31[48]; 49 extern const q31_t twiddleCoef_64_q31[96]; 50 extern const q31_t twiddleCoef_128_q31[192]; 51 extern const q31_t twiddleCoef_256_q31[384]; 52 extern const q31_t twiddleCoef_512_q31[768]; 53 extern const q31_t twiddleCoef_1024_q31[1536]; 54 extern const q31_t twiddleCoef_2048_q31[3072]; 55 extern const q31_t twiddleCoef_4096_q31[6144]; 56 extern const q15_t twiddleCoef_16_q15[24]; 57 extern const q15_t twiddleCoef_32_q15[48]; 58 extern const q15_t twiddleCoef_64_q15[96]; 59 extern const q15_t twiddleCoef_128_q15[192]; 60 extern const q15_t twiddleCoef_256_q15[384]; 61 extern const q15_t twiddleCoef_512_q15[768]; 62 extern const q15_t twiddleCoef_1024_q15[1536]; 63 extern const q15_t twiddleCoef_2048_q15[3072]; 64 extern const q15_t twiddleCoef_4096_q15[6144]; 65 extern const float32_t twiddleCoef_rfft_32[32]; 66 extern const float32_t twiddleCoef_rfft_64[64]; 67 extern const float32_t twiddleCoef_rfft_128[128]; 68 extern const float32_t twiddleCoef_rfft_256[256]; 69 extern const float32_t twiddleCoef_rfft_512[512]; 70 extern const float32_t twiddleCoef_rfft_1024[1024]; 71 extern const float32_t twiddleCoef_rfft_2048[2048]; 72 extern const float32_t twiddleCoef_rfft_4096[4096]; 73 74 /* floating-point bit reversal tables */ 75 #define ARMBITREVINDEXTABLE_16_TABLE_LENGTH ((uint16_t)20) 76 #define ARMBITREVINDEXTABLE_32_TABLE_LENGTH ((uint16_t)48) 77 #define ARMBITREVINDEXTABLE_64_TABLE_LENGTH ((uint16_t)56) 78 #define ARMBITREVINDEXTABLE_128_TABLE_LENGTH ((uint16_t)208) 79 #define ARMBITREVINDEXTABLE_256_TABLE_LENGTH ((uint16_t)440) 80 #define ARMBITREVINDEXTABLE_512_TABLE_LENGTH ((uint16_t)448) 81 #define ARMBITREVINDEXTABLE_1024_TABLE_LENGTH ((uint16_t)1800) 82 #define ARMBITREVINDEXTABLE_2048_TABLE_LENGTH ((uint16_t)3808) 83 #define ARMBITREVINDEXTABLE_4096_TABLE_LENGTH ((uint16_t)4032) 84 85 extern const uint16_t armBitRevIndexTable16[ARMBITREVINDEXTABLE_16_TABLE_LENGTH]; 86 extern const uint16_t armBitRevIndexTable32[ARMBITREVINDEXTABLE_32_TABLE_LENGTH]; 87 extern const uint16_t armBitRevIndexTable64[ARMBITREVINDEXTABLE_64_TABLE_LENGTH]; 88 extern const uint16_t armBitRevIndexTable128[ARMBITREVINDEXTABLE_128_TABLE_LENGTH]; 89 extern const uint16_t armBitRevIndexTable256[ARMBITREVINDEXTABLE_256_TABLE_LENGTH]; 90 extern const uint16_t armBitRevIndexTable512[ARMBITREVINDEXTABLE_512_TABLE_LENGTH]; 91 extern const uint16_t armBitRevIndexTable1024[ARMBITREVINDEXTABLE_1024_TABLE_LENGTH]; 92 extern const uint16_t armBitRevIndexTable2048[ARMBITREVINDEXTABLE_2048_TABLE_LENGTH]; 93 extern const uint16_t armBitRevIndexTable4096[ARMBITREVINDEXTABLE_4096_TABLE_LENGTH]; 94 95 /* fixed-point bit reversal tables */ 96 #define ARMBITREVINDEXTABLE_FIXED_16_TABLE_LENGTH ((uint16_t)12) 97 #define ARMBITREVINDEXTABLE_FIXED_32_TABLE_LENGTH ((uint16_t)24) 98 #define ARMBITREVINDEXTABLE_FIXED_64_TABLE_LENGTH ((uint16_t)56) 99 #define ARMBITREVINDEXTABLE_FIXED_128_TABLE_LENGTH ((uint16_t)112) 100 #define ARMBITREVINDEXTABLE_FIXED_256_TABLE_LENGTH ((uint16_t)240) 101 #define ARMBITREVINDEXTABLE_FIXED_512_TABLE_LENGTH ((uint16_t)480) 102 #define ARMBITREVINDEXTABLE_FIXED_1024_TABLE_LENGTH ((uint16_t)992) 103 #define ARMBITREVINDEXTABLE_FIXED_2048_TABLE_LENGTH ((uint16_t)1984) 104 #define ARMBITREVINDEXTABLE_FIXED_4096_TABLE_LENGTH ((uint16_t)4032) 105 106 extern const uint16_t armBitRevIndexTable_fixed_16[ARMBITREVINDEXTABLE_FIXED_16_TABLE_LENGTH]; 107 extern const uint16_t armBitRevIndexTable_fixed_32[ARMBITREVINDEXTABLE_FIXED_32_TABLE_LENGTH]; 108 extern const uint16_t armBitRevIndexTable_fixed_64[ARMBITREVINDEXTABLE_FIXED_64_TABLE_LENGTH]; 109 extern const uint16_t armBitRevIndexTable_fixed_128[ARMBITREVINDEXTABLE_FIXED_128_TABLE_LENGTH]; 110 extern const uint16_t armBitRevIndexTable_fixed_256[ARMBITREVINDEXTABLE_FIXED_256_TABLE_LENGTH]; 111 extern const uint16_t armBitRevIndexTable_fixed_512[ARMBITREVINDEXTABLE_FIXED_512_TABLE_LENGTH]; 112 extern const uint16_t armBitRevIndexTable_fixed_1024[ARMBITREVINDEXTABLE_FIXED_1024_TABLE_LENGTH]; 113 extern const uint16_t armBitRevIndexTable_fixed_2048[ARMBITREVINDEXTABLE_FIXED_2048_TABLE_LENGTH]; 114 extern const uint16_t armBitRevIndexTable_fixed_4096[ARMBITREVINDEXTABLE_FIXED_4096_TABLE_LENGTH]; 115 116 /* Tables for Fast Math Sine and Cosine */ 117 extern const float32_t sinTable_f32[FAST_MATH_TABLE_SIZE + 1]; 118 extern const q31_t sinTable_q31[FAST_MATH_TABLE_SIZE + 1]; 119 extern const q15_t sinTable_q15[FAST_MATH_TABLE_SIZE + 1]; 120 121 #endif /* ARM_COMMON_TABLES_H */ 122