不韋 呂 / Mbed 2 deprecated F746_SinWithNoiseGenerator

ノイズを付加した正弦波発生器 Sinusoidal wave generator with noise.

Dependencies:   F746_GUI F746_SAI_IO Random mbed

MyFiles/WaveformDisplay.cpp@0:31361b0fcdad, 2018-11-04 (annotated)

Committer:
MikamiUitOpen
Date:
Sun Nov 04 02:41:21 2018 +0000
Revision:
0:31361b0fcdad
1

Who changed what in which revision?

UserRevisionLine numberNew contents of line
MikamiUitOpen 0:31361b0fcdad 1 //-----------------------------------------------------------
MikamiUitOpen 0:31361b0fcdad 2 // Class for waveform display
MikamiUitOpen 0:31361b0fcdad 3 //
MikamiUitOpen 0:31361b0fcdad 4 // 2018/11/03, Copyright (c) 2018 MIKAMI, Naoki
MikamiUitOpen 0:31361b0fcdad 5 //-----------------------------------------------------------
MikamiUitOpen 0:31361b0fcdad 6
MikamiUitOpen 0:31361b0fcdad 7 #include "WaveformDisplay.hpp"
MikamiUitOpen 0:31361b0fcdad 8
MikamiUitOpen 0:31361b0fcdad 9 namespace Mikami
MikamiUitOpen 0:31361b0fcdad 10 {
MikamiUitOpen 0:31361b0fcdad 11 void WaveformDisplay::Execute(int start, int factor)
MikamiUitOpen 0:31361b0fcdad 12 {
MikamiUitOpen 0:31361b0fcdad 13 Axis();
MikamiUitOpen 0:31361b0fcdad 14 dt_ = factor;
MikamiUitOpen 0:31361b0fcdad 15 Draw(xn_, start, LINE_COLOR1_);
MikamiUitOpen 0:31361b0fcdad 16 lcd_.SetTextColor(BACK_COLOR_);
MikamiUitOpen 0:31361b0fcdad 17 }
MikamiUitOpen 0:31361b0fcdad 18
MikamiUitOpen 0:31361b0fcdad 19 // Clipping
MikamiUitOpen 0:31361b0fcdad 20 uint16_t WaveformDisplay::Clip(int16_t xn)
MikamiUitOpen 0:31361b0fcdad 21 {
MikamiUitOpen 0:31361b0fcdad 22 int16_t x = xn >> R_SHIFT_;
MikamiUitOpen 0:31361b0fcdad 23 if (x > LIMIT_ ) x = LIMIT2_;
MikamiUitOpen 0:31361b0fcdad 24 if (x < -LIMIT_ ) x = -LIMIT2_ ;
MikamiUitOpen 0:31361b0fcdad 25 return Y0_ - x;
MikamiUitOpen 0:31361b0fcdad 26 }
MikamiUitOpen 0:31361b0fcdad 27
MikamiUitOpen 0:31361b0fcdad 28 void WaveformDisplay::Draw(const Array<int16_t>& xn, int start, uint32_t color)
MikamiUitOpen 0:31361b0fcdad 29 {
MikamiUitOpen 0:31361b0fcdad 30 lcd_.SetTextColor(color);
MikamiUitOpen 0:31361b0fcdad 31 uint16_t x1 = X0_;
MikamiUitOpen 0:31361b0fcdad 32 uint16_t y1 = Clip(xn[start]);
MikamiUitOpen 0:31361b0fcdad 33 for (int n=1; n<N_DATA_/dt_; n++)
MikamiUitOpen 0:31361b0fcdad 34 {
MikamiUitOpen 0:31361b0fcdad 35 uint16_t x2 = X0_ + n*dt_;
MikamiUitOpen 0:31361b0fcdad 36 uint16_t y2 = Clip(xn[start+n]);
MikamiUitOpen 0:31361b0fcdad 37 lcd_.DrawLine(x1, y1, x2, y2);
MikamiUitOpen 0:31361b0fcdad 38
MikamiUitOpen 0:31361b0fcdad 39 x1 = x2;
MikamiUitOpen 0:31361b0fcdad 40 y1 = y2;
MikamiUitOpen 0:31361b0fcdad 41 }
MikamiUitOpen 0:31361b0fcdad 42 }
MikamiUitOpen 0:31361b0fcdad 43
MikamiUitOpen 0:31361b0fcdad 44 void WaveformDisplay::Axis()
MikamiUitOpen 0:31361b0fcdad 45 {
MikamiUitOpen 0:31361b0fcdad 46 lcd_.SetTextColor(BACK_COLOR_);
MikamiUitOpen 0:31361b0fcdad 47 lcd_.FillRect(X0_, Y0_-LIMIT2_, N_DATA_, LIMIT2_*2+1);
MikamiUitOpen 0:31361b0fcdad 48
MikamiUitOpen 0:31361b0fcdad 49 lcd_.SetTextColor(AXIS_COLOR_);
MikamiUitOpen 0:31361b0fcdad 50 lcd_.DrawLine(X0_-5, Y0_, X0_+N_DATA_+5, Y0_);
MikamiUitOpen 0:31361b0fcdad 51 }
MikamiUitOpen 0:31361b0fcdad 52 }