Kenji Arai / F446_AD_DA

Added one channel mode

Dependents:   CW_Decoder_using_FFT_on_F446

Fork of F446_AD_DA by 不韋 呂

F446_ADC.hpp@2:29f9831ce719, 2017-01-30 (annotated)

Committer:
MikamiUitOpen
Date:
Mon Jan 30 08:04:59 2017 +0000
Revision:
2:29f9831ce719
Parent:
1:6b9f2af6613d
Child:
3:d1da91aec62f
3

Who changed what in which revision?

UserRevisionLine numberNew contents of line
MikamiUitOpen 0:c945b4fe9a48 1 //----------------------------------------------------------
MikamiUitOpen 0:c945b4fe9a48 2 // Simultanuous AD Conversion by polling using
MikamiUitOpen 0:c945b4fe9a48 3 // ADC2 and ADC3 on STM32F446 ---- Header
MikamiUitOpen 0:c945b4fe9a48 4 //
MikamiUitOpen 0:c945b4fe9a48 5 // STM32F446 の ADC2, ADC3 を使って同時に AD 変換を開始し，
MikamiUitOpen 0:c945b4fe9a48 6 // ポーリングによりアナログ信号を入力するクラス（ヘッダ）
MikamiUitOpen 1:6b9f2af6613d 7 // A0 (PA_0) : ADC2 CH0, 左
MikamiUitOpen 1:6b9f2af6613d 8 // A1 (PA_1) : ADC3 CH1, 右
MikamiUitOpen 1:6b9f2af6613d 9 // Read(), Write() の引数：
MikamiUitOpen 1:6b9f2af6613d 10 // 第一引数：A0 (左)，第二引数：A1 (右)
MikamiUitOpen 0:c945b4fe9a48 11 //
MikamiUitOpen 2:29f9831ce719 12 // 2017/01/30, Copyright (c) 2017 MIKAMI, Naoki
MikamiUitOpen 0:c945b4fe9a48 13 //----------------------------------------------------------
MikamiUitOpen 0:c945b4fe9a48 14
MikamiUitOpen 0:c945b4fe9a48 15 #include "mbed.h"
MikamiUitOpen 1:6b9f2af6613d 16 #include "F446_DAC.hpp"
MikamiUitOpen 0:c945b4fe9a48 17
MikamiUitOpen 0:c945b4fe9a48 18 #ifndef STM32F446xx
MikamiUitOpen 2:29f9831ce719 19 #error Select NUCLEO-F446RE
MikamiUitOpen 0:c945b4fe9a48 20 #endif
MikamiUitOpen 0:c945b4fe9a48 21
MikamiUitOpen 0:c945b4fe9a48 22 #ifndef F446_ADC_DUAL_HPP
MikamiUitOpen 0:c945b4fe9a48 23 #define F446_ADC_DUAL_HPP
MikamiUitOpen 0:c945b4fe9a48 24
MikamiUitOpen 0:c945b4fe9a48 25 namespace Mikami
MikamiUitOpen 0:c945b4fe9a48 26 {
MikamiUitOpen 0:c945b4fe9a48 27 class AdcDual
MikamiUitOpen 0:c945b4fe9a48 28 {
MikamiUitOpen 0:c945b4fe9a48 29 public:
MikamiUitOpen 0:c945b4fe9a48 30 // Constructor
MikamiUitOpen 0:c945b4fe9a48 31 // frequency: 標本化周波数
MikamiUitOpen 0:c945b4fe9a48 32 explicit AdcDual(int frequency);
MikamiUitOpen 0:c945b4fe9a48 33
MikamiUitOpen 1:6b9f2af6613d 34 // -1.0f <= ad1, ad2 <= 1.0f
MikamiUitOpen 1:6b9f2af6613d 35 // ad1: left, ad2: right
MikamiUitOpen 0:c945b4fe9a48 36 virtual void Read(float &ad1, float &ad2);
MikamiUitOpen 0:c945b4fe9a48 37
MikamiUitOpen 1:6b9f2af6613d 38 // 0 <= ad1, ad2 <= 4095
MikamiUitOpen 1:6b9f2af6613d 39 // ad1: left, ad2: right
MikamiUitOpen 0:c945b4fe9a48 40 virtual void Read(uint16_t &ad1, uint16_t &ad2);
MikamiUitOpen 0:c945b4fe9a48 41
MikamiUitOpen 0:c945b4fe9a48 42 protected:
MikamiUitOpen 0:c945b4fe9a48 43 float ToFloat(uint16_t x)
MikamiUitOpen 0:c945b4fe9a48 44 { return AMP_*(x - 2048); }
MikamiUitOpen 0:c945b4fe9a48 45
MikamiUitOpen 0:c945b4fe9a48 46 private:
MikamiUitOpen 0:c945b4fe9a48 47 static const float AMP_ = 1.0f/2048.0f;
MikamiUitOpen 0:c945b4fe9a48 48 static const uint32_t EOC23_ = ADC_CSR_EOC2 | ADC_CSR_EOC3;
MikamiUitOpen 0:c945b4fe9a48 49
MikamiUitOpen 0:c945b4fe9a48 50 // AD 変換が完了するまで待つ
MikamiUitOpen 0:c945b4fe9a48 51 void WaitDone()
MikamiUitOpen 0:c945b4fe9a48 52 { while((ADC->CSR & EOC23_) != EOC23_); }
MikamiUitOpen 0:c945b4fe9a48 53
MikamiUitOpen 0:c945b4fe9a48 54 // AD 変換器の外部トリガに使うタイマ (TIM8) の設定
MikamiUitOpen 0:c945b4fe9a48 55 void SetTim8(int frequency);
MikamiUitOpen 0:c945b4fe9a48 56
MikamiUitOpen 0:c945b4fe9a48 57 // for inhibition of copy constructor
MikamiUitOpen 0:c945b4fe9a48 58 AdcDual(const AdcDual&);
MikamiUitOpen 0:c945b4fe9a48 59 // for inhibition of substitute operator
MikamiUitOpen 0:c945b4fe9a48 60 AdcDual& operator=(const AdcDual&);
MikamiUitOpen 0:c945b4fe9a48 61 };
MikamiUitOpen 0:c945b4fe9a48 62 }
MikamiUitOpen 1:6b9f2af6613d 63 #endif // F446_ADC_DUAL_HPP