不韋 呂 / Mbed 2 deprecated F746_SAI_Oscilloscope

Waveform display for input signal using SAI from MEMS microphone or line. MEMS マイクまたはラインから SAI により入力した信号の波形を表示する．

Dependencies:   BSP_DISCO_F746NG F746_GUI F746_SAI_IO LCD_DISCO_F746NG TS_DISCO_F746NG mbed

MyClasses/WaveformDisplay.cpp@5:92bb7f2bf714, 2018-03-12 (annotated)

Committer:
MikamiUitOpen
Date:
Mon Mar 12 05:27:19 2018 +0000
Revision:
5:92bb7f2bf714
Parent:
4:bf927b50098b 
6

Who changed what in which revision?

UserRevisionLine numberNew contents of line
MikamiUitOpen 0:e2c6c8630aab 1 //-----------------------------------------------------------
MikamiUitOpen 0:e2c6c8630aab 2 // Class for waveform display
MikamiUitOpen 0:e2c6c8630aab 3 //
MikamiUitOpen 4:bf927b50098b 4 // 2017/03/17, Copyright (c) 2017 MIKAMI, Naoki
MikamiUitOpen 0:e2c6c8630aab 5 //-----------------------------------------------------------
MikamiUitOpen 0:e2c6c8630aab 6
MikamiUitOpen 0:e2c6c8630aab 7 #include "WaveformDisplay.hpp"
MikamiUitOpen 0:e2c6c8630aab 8
MikamiUitOpen 0:e2c6c8630aab 9 namespace Mikami
MikamiUitOpen 0:e2c6c8630aab 10 {
MikamiUitOpen 0:e2c6c8630aab 11 void WaveformDisplay::Execute()
MikamiUitOpen 0:e2c6c8630aab 12 {
MikamiUitOpen 2:afff5ec35233 13 uint16_t lim1 = Y0_ + LIMIT2_;
MikamiUitOpen 2:afff5ec35233 14 uint16_t lim2 = Y0_ - LIMIT2_;
MikamiUitOpen 0:e2c6c8630aab 15 Axis();
MikamiUitOpen 4:bf927b50098b 16 lcd_.SetTextColor(LINE_COLOR_);
MikamiUitOpen 0:e2c6c8630aab 17 uint16_t x1 = X0_;
MikamiUitOpen 0:e2c6c8630aab 18 uint16_t y1 = Clip(xn_[0]);
MikamiUitOpen 0:e2c6c8630aab 19 for (int n=1; n<N_DATA_; n++)
MikamiUitOpen 0:e2c6c8630aab 20 {
MikamiUitOpen 0:e2c6c8630aab 21 uint16_t x2 = X0_ + n;
MikamiUitOpen 0:e2c6c8630aab 22 uint16_t y2 = Clip(xn_[n]);
MikamiUitOpen 2:afff5ec35233 23 if ( ((y2 == lim1) && (y1 == lim1)) ||
MikamiUitOpen 2:afff5ec35233 24 ((y2 == lim2) && (y1 == lim2)) )
MikamiUitOpen 0:e2c6c8630aab 25 { // Out of displaying boundaries
MikamiUitOpen 4:bf927b50098b 26 lcd_.SetTextColor(LCD_COLOR_RED);
MikamiUitOpen 4:bf927b50098b 27 lcd_.DrawHLine(x1, y1, 1);
MikamiUitOpen 4:bf927b50098b 28 lcd_.SetTextColor(LINE_COLOR_);
MikamiUitOpen 0:e2c6c8630aab 29 }
MikamiUitOpen 0:e2c6c8630aab 30 else
MikamiUitOpen 4:bf927b50098b 31 lcd_.DrawLine(x1, y1, x2, y2);
MikamiUitOpen 2:afff5ec35233 32 if ((y1 == lim1) || (y1 == lim2))
MikamiUitOpen 4:bf927b50098b 33 lcd_.DrawPixel(x1, y1, LCD_COLOR_RED);
MikamiUitOpen 0:e2c6c8630aab 34 x1 = x2;
MikamiUitOpen 0:e2c6c8630aab 35 y1 = y2;
MikamiUitOpen 0:e2c6c8630aab 36 }
MikamiUitOpen 4:bf927b50098b 37 lcd_.SetTextColor(BACK_COLOR_);
MikamiUitOpen 0:e2c6c8630aab 38 }
MikamiUitOpen 0:e2c6c8630aab 39
MikamiUitOpen 0:e2c6c8630aab 40 // Clipping
MikamiUitOpen 0:e2c6c8630aab 41 uint16_t WaveformDisplay::Clip(int16_t xn)
MikamiUitOpen 0:e2c6c8630aab 42 {
MikamiUitOpen 0:e2c6c8630aab 43 int16_t x = xn >> R_SHIFT_;
MikamiUitOpen 0:e2c6c8630aab 44 if (x > LIMIT_ ) x = LIMIT2_;
MikamiUitOpen 0:e2c6c8630aab 45 if (x < -LIMIT_ ) x = -LIMIT2_ ;
MikamiUitOpen 0:e2c6c8630aab 46 return Y0_ - x;
MikamiUitOpen 0:e2c6c8630aab 47 }
MikamiUitOpen 0:e2c6c8630aab 48
MikamiUitOpen 0:e2c6c8630aab 49 void WaveformDisplay::Axis()
MikamiUitOpen 0:e2c6c8630aab 50 {
MikamiUitOpen 4:bf927b50098b 51 lcd_.SetTextColor(BACK_COLOR_);
MikamiUitOpen 4:bf927b50098b 52 lcd_.FillRect(X0_, Y0_-LIMIT2_, N_DATA_, LIMIT2_*2+1);
MikamiUitOpen 0:e2c6c8630aab 53
MikamiUitOpen 4:bf927b50098b 54 lcd_.SetTextColor(AXIS_COLOR_);
MikamiUitOpen 4:bf927b50098b 55 lcd_.DrawLine(X0_-5, Y0_, X0_+N_DATA_+5, Y0_);
MikamiUitOpen 0:e2c6c8630aab 56 }
MikamiUitOpen 0:e2c6c8630aab 57 }