Nucleo-F446RE 内蔵の AD/DA を使うためのライブラリ.DA からの出力は,標本化周波数の4倍のレートで行う. このライブラリを登録した際のプログラム: Demo_F446_AD_DA_Multirate. Library for built-in ADC and DAC in Nucleo-F446RE. Sampling rate for DAC is four times of that for ADC.
Dependents: F446_UpSampling_GraphicEqualizer F446_UpSampling_ReverbSystem F446_UpSampling_FrqShifter_Weaver Demo_F446_AD_DA_Multirate ... more
Diff: F446_Multirate.cpp
- Revision:
- 5:4800dd3838d6
- Parent:
- 4:c853feefa216
- Child:
- 7:6275fe158ae8
--- a/F446_Multirate.cpp Tue Jun 05 23:35:08 2018 +0000 +++ b/F446_Multirate.cpp Fri Jun 15 13:33:20 2018 +0000 @@ -1,8 +1,9 @@ //----------------------------------------------------------- // 出力を 4 倍にアップサンプリングするクラス:高域の補正を行う場合 // Nucleo-F446RE 専用 +// 補間処理で使うフィルタとして,縦続形構成の IIR フィルタを使用 // -// 2018/06/06, Copyright (c) 2018 MIKAMI, Naoki +// 2018/06/15, Copyright (c) 2018 MIKAMI, Naoki //----------------------------------------------------------- #include "F446_Multirate.hpp" @@ -60,7 +61,7 @@ AdcF446 *F446_Multirate::adc_; DacF446 F446_Multirate::dac_; Array<float> F446_Multirate::buf_(2*FACTOR_, 0.0f); -int F446_Multirate::indexR_ = FACTOR_ - 1; +int F446_Multirate::indexR_ = FACTOR_; float F446_Multirate::xn_; __IO bool F446_Multirate::okIn_ = false;