CQエレクトロニクス・セミナで使用するファンクション・ジェネレータの プログラム
Dependencies: Array_Matrix mbed SerialTxRxIntr MyTicker7
MSeq16.hpp@0:8c8bc21159d9, 2022-02-25 (annotated)
- Committer:
- MikamiUitOpen
- Date:
- Fri Feb 25 02:36:55 2022 +0000
- Revision:
- 0:8c8bc21159d9
1
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
MikamiUitOpen | 0:8c8bc21159d9 | 1 | //--------------------------------------------------------- |
MikamiUitOpen | 0:8c8bc21159d9 | 2 | // M 系列信号発生器(N = 16) |
MikamiUitOpen | 0:8c8bc21159d9 | 3 | // |
MikamiUitOpen | 0:8c8bc21159d9 | 4 | // 2021/09/28, Copyright (c) 2021 MIKAMI, Naoki |
MikamiUitOpen | 0:8c8bc21159d9 | 5 | //--------------------------------------------------------- |
MikamiUitOpen | 0:8c8bc21159d9 | 6 | |
MikamiUitOpen | 0:8c8bc21159d9 | 7 | #include "mbed.h" |
MikamiUitOpen | 0:8c8bc21159d9 | 8 | |
MikamiUitOpen | 0:8c8bc21159d9 | 9 | #ifndef MSEQ16_HPP |
MikamiUitOpen | 0:8c8bc21159d9 | 10 | #define MSEQ16_HPP |
MikamiUitOpen | 0:8c8bc21159d9 | 11 | |
MikamiUitOpen | 0:8c8bc21159d9 | 12 | namespace Mikami |
MikamiUitOpen | 0:8c8bc21159d9 | 13 | { |
MikamiUitOpen | 0:8c8bc21159d9 | 14 | class MSeq16 |
MikamiUitOpen | 0:8c8bc21159d9 | 15 | { |
MikamiUitOpen | 0:8c8bc21159d9 | 16 | public: |
MikamiUitOpen | 0:8c8bc21159d9 | 17 | MSeq16() : reg_(1) {} |
MikamiUitOpen | 0:8c8bc21159d9 | 18 | |
MikamiUitOpen | 0:8c8bc21159d9 | 19 | // 戻り値: 0 => -0.5, 1 => 0.5 |
MikamiUitOpen | 0:8c8bc21159d9 | 20 | float Execute() |
MikamiUitOpen | 0:8c8bc21159d9 | 21 | { |
MikamiUitOpen | 0:8c8bc21159d9 | 22 | msb_ = reg_ >> 15; |
MikamiUitOpen | 0:8c8bc21159d9 | 23 | reg_ = ((reg_ ^ XOR_[msb_]) << 1) | msb_; |
MikamiUitOpen | 0:8c8bc21159d9 | 24 | return RET_[msb_]; |
MikamiUitOpen | 0:8c8bc21159d9 | 25 | } |
MikamiUitOpen | 0:8c8bc21159d9 | 26 | private: |
MikamiUitOpen | 0:8c8bc21159d9 | 27 | static const uint16_t XOR_[2]; // XOR の一方の入力 |
MikamiUitOpen | 0:8c8bc21159d9 | 28 | static const float RET_[2]; // 戻り値として使用 |
MikamiUitOpen | 0:8c8bc21159d9 | 29 | uint16_t reg_; // 16 段の D フリップ・フロップに対応 |
MikamiUitOpen | 0:8c8bc21159d9 | 30 | uint16_t msb_; // 16 段目に相当するビット |
MikamiUitOpen | 0:8c8bc21159d9 | 31 | }; |
MikamiUitOpen | 0:8c8bc21159d9 | 32 | const uint16_t MSeq16::XOR_[2] = { 0, 0x16 }; |
MikamiUitOpen | 0:8c8bc21159d9 | 33 | const float MSeq16::RET_[2] = { -0.5f, 0.5f }; |
MikamiUitOpen | 0:8c8bc21159d9 | 34 | } |
MikamiUitOpen | 0:8c8bc21159d9 | 35 | #endif // MSEQ16_HPP |