![](/media/cache/img/default_profile.jpg.50x50_q85.jpg)
Spectrum analyzer using DISCO-F746NG. Spectrum is calculated by FFT or linear prediction. The vowel data is in "vowel_data.hpp"
Dependencies: BSP_DISCO_F746NG LCD_DISCO_F746NG TS_DISCO_F746NG UIT_FFT_Real mbed BUTTON_GROUP
Diff: my_class_and_function/waveform_display.hpp
- Revision:
- 0:c35b8a23a863
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/my_class_and_function/waveform_display.hpp Mon Oct 26 08:06:57 2015 +0000 @@ -0,0 +1,36 @@ +//----------------------------------------------------------- +// Function for waveform display +// +// 2015/10/26, Copyright (c) 2015 MIKAMI, Naoki +//----------------------------------------------------------- + +#ifndef F746_WAVEFORM_DISPLAY_HPP +#define F746_WAVEFORM_DISPLAY_HPP + +#include "mbed.h" + +namespace Mikami +{ + void WaveformDisplay(LCD_DISCO_F746NG &lcd, uint16_t x0, uint16_t y0, + int16_t xn[], int nData, uint32_t backColor) + { + lcd.SetTextColor(backColor); + lcd.FillRect(x0, y0-32, nData, 64); + + lcd.SetTextColor(LCD_COLOR_BLUE); + lcd.DrawLine(x0-5, y0, x0+nData+5, y0); + + lcd.SetTextColor(LCD_COLOR_CYAN); + uint16_t x1 = x0; + uint16_t y1 = y0 - (xn[0] >> 9); + for (int n=1; n<nData; n++) + { + uint16_t x2 = x0 + n; + uint16_t y2 = y0 - (xn[n] >> 9); + lcd.DrawLine(x1, y1, x2, y2); + x1 = x2; + y1 = y2; + } + } +} +#endif // F746_WAVEFORM_DISPLAY_HPP \ No newline at end of file