不韋 呂 / Mbed 2 deprecated CQ_DigitalFilterLab_IIR1st_Variable

CQエレクトロニクス･セミナ「実習・マイコンを動かしながら学ぶディジタル･フィルタ」で使うプログラム．1次IIRフィルタの係数をターミナルから変更できる． http://seminar.cqpub.co.jp/ccm/ES18-0020

Dependencies:   mbed Array_Matrix BSP_DISCO_F746NG LCD_DISCO_F746NG TS_DISCO_F746NG

MyFiles/WaveformDisplay.cpp@2:aa11055138a2, 2017-11-08 (annotated)

Committer:
MikamiUitOpen
Date:
Wed Nov 08 11:10:56 2017 +0000
Revision:
2:aa11055138a2
Parent:
0:47718d3154d9 
3

Who changed what in which revision?

UserRevisionLine numberNew contents of line
MikamiUitOpen 0:47718d3154d9 1 //-----------------------------------------------------------
MikamiUitOpen 0:47718d3154d9 2 // Class for waveform display
MikamiUitOpen 0:47718d3154d9 3 //
MikamiUitOpen 0:47718d3154d9 4 // 2017/07/24, Copyright (c) 2017 MIKAMI, Naoki
MikamiUitOpen 0:47718d3154d9 5 //-----------------------------------------------------------
MikamiUitOpen 0:47718d3154d9 6
MikamiUitOpen 0:47718d3154d9 7 #include "WaveformDisplay.hpp"
MikamiUitOpen 0:47718d3154d9 8
MikamiUitOpen 0:47718d3154d9 9 namespace Mikami
MikamiUitOpen 0:47718d3154d9 10 {
MikamiUitOpen 0:47718d3154d9 11 void WaveformDisplay::Execute(int start, int factor)
MikamiUitOpen 0:47718d3154d9 12 {
MikamiUitOpen 0:47718d3154d9 13 Axis();
MikamiUitOpen 0:47718d3154d9 14 dt_ = factor;
MikamiUitOpen 0:47718d3154d9 15 Draw(xn_, start, LINE_COLOR1_);
MikamiUitOpen 0:47718d3154d9 16 Draw(yn_, start, LINE_COLOR2_);
MikamiUitOpen 0:47718d3154d9 17 lcd_.SetTextColor(BACK_COLOR_);
MikamiUitOpen 0:47718d3154d9 18 }
MikamiUitOpen 0:47718d3154d9 19
MikamiUitOpen 0:47718d3154d9 20 // Clipping
MikamiUitOpen 0:47718d3154d9 21 uint16_t WaveformDisplay::Clip(int16_t xn)
MikamiUitOpen 0:47718d3154d9 22 {
MikamiUitOpen 0:47718d3154d9 23 int16_t x = xn >> R_SHIFT_;
MikamiUitOpen 0:47718d3154d9 24 if (x > LIMIT_ ) x = LIMIT2_;
MikamiUitOpen 0:47718d3154d9 25 if (x < -LIMIT_ ) x = -LIMIT2_ ;
MikamiUitOpen 0:47718d3154d9 26 return Y0_ - x;
MikamiUitOpen 0:47718d3154d9 27 }
MikamiUitOpen 0:47718d3154d9 28
MikamiUitOpen 0:47718d3154d9 29 void WaveformDisplay::Draw(const Array<int16_t>& xn, int start, uint32_t color)
MikamiUitOpen 0:47718d3154d9 30 {
MikamiUitOpen 0:47718d3154d9 31 lcd_.SetTextColor(color);
MikamiUitOpen 0:47718d3154d9 32 uint16_t x1 = X0_;
MikamiUitOpen 0:47718d3154d9 33 uint16_t y1 = Clip(xn[start]);
MikamiUitOpen 0:47718d3154d9 34 // for (int n=1; n<N_DATA_; n++)
MikamiUitOpen 0:47718d3154d9 35 for (int n=1; n<N_DATA_/dt_; n++)
MikamiUitOpen 0:47718d3154d9 36 {
MikamiUitOpen 0:47718d3154d9 37 // uint16_t x2 = X0_ + n;
MikamiUitOpen 0:47718d3154d9 38 uint16_t x2 = X0_ + n*dt_;
MikamiUitOpen 0:47718d3154d9 39 uint16_t y2 = Clip(xn[start+n]);
MikamiUitOpen 0:47718d3154d9 40 lcd_.DrawLine(x1, y1, x2, y2);
MikamiUitOpen 0:47718d3154d9 41
MikamiUitOpen 0:47718d3154d9 42 x1 = x2;
MikamiUitOpen 0:47718d3154d9 43 y1 = y2;
MikamiUitOpen 0:47718d3154d9 44 }
MikamiUitOpen 0:47718d3154d9 45 }
MikamiUitOpen 0:47718d3154d9 46
MikamiUitOpen 0:47718d3154d9 47 void WaveformDisplay::Axis()
MikamiUitOpen 0:47718d3154d9 48 {
MikamiUitOpen 0:47718d3154d9 49 lcd_.SetTextColor(BACK_COLOR_);
MikamiUitOpen 0:47718d3154d9 50 lcd_.FillRect(X0_, Y0_-LIMIT2_, N_DATA_, LIMIT2_*2+1);
MikamiUitOpen 0:47718d3154d9 51
MikamiUitOpen 0:47718d3154d9 52 lcd_.SetTextColor(AXIS_COLOR_);
MikamiUitOpen 0:47718d3154d9 53 lcd_.DrawLine(X0_-5, Y0_, X0_+N_DATA_+5, Y0_);
MikamiUitOpen 0:47718d3154d9 54 }
MikamiUitOpen 0:47718d3154d9 55 }