Output the audio signal with filtering by IIR filter in the Quad-SPI flash memory using onboard CODEC. QSPI フラッシュメモリのオーディオデータを遮断周波数可変の IIR フィルタを通してボードに搭載されているCODEC で出力するプログラム.
Dependencies: BSP_DISCO_F746NG_patch_fixed F746_GUI LCD_DISCO_F746NG QSPI_DISCO_F746NG TS_DISCO_F746NG mbed
MyClasses_Functions/DesignerDrawer.hpp
- Committer:
- MikamiUitOpen
- Date:
- 2016-04-07
- Revision:
- 1:a1be09c2533a
- Parent:
- 0:2eb96a7cf9b9
File content as of revision 1:a1be09c2533a:
//------------------------------------------------------------------------------ // IIR フィルタを双一次 z 変換で設計し,その周波数特性を描画するためのクラス -- Header // // 2016/03/31, Copyright (c) 2016 MIKAMI, Naoki //------------------------------------------------------------------------------ #ifndef F746_DISIGNER_AND_DRAWER_HPP #define F746_DISIGNER_AND_DRAWER_HPP #include "NumericLabel.hpp" #include "TouchPanelDetectorX.hpp" #include "BiquadFrqRespDrawer.hpp" #include "BilinearDesignLH.hpp" namespace Mikami { class DesignerDrawer { public: // Constructor DesignerDrawer(uint16_t x0, uint16_t y0, uint16_t db10, uint16_t fs, int order, float fc, uint16_t fL, uint16_t fH, BilinearDesign::Type lpHp); bool ReDesignAndDraw(Biquad::Coefs *ck, float &g0, BilinearDesign::Type lpHp); void GetCoefficients(Biquad::Coefs *ck, float &g0); private: LCD_DISCO_F746NG *lcd_; TS_DISCO_F746NG *ts_; const uint16_t ORDER_; const uint16_t CURSOR_Y0_, CURSOR_LENGTH_; const uint16_t LOWER_F_, HIGHER_F_; const uint32_t CURSOR_COLOR_, CURSOR_TOUCHED_COLOR_; BilinearDesign::Coefs *coefs_; // 設計された係数 Biquad::Coefs *ck_; float g0_; // 設計された係数(利得定数) int fC_; // 遮断周波数 uint16_t cursorX_, oldCursorX_; bool cursorRedraw_; BilinearDesign::Type lp_; BiquadFrqRespDrawer *drawerObj_; BilinearDesign *designObj_; TouchPanelDetectorX *tp_; NumericLabel<int> *lblFrq_; // 周波数を 10, 20, 50, 100 Hz の倍数にする int Frq10(float f); }; } #endif // F746_DISIGNER_AND_DRAWER_HPP