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@0:c945b4fe9a48, 2016-11-11 (annotated)

Committer:
MikamiUitOpen
Date:
Fri Nov 11 06:28:48 2016 +0000
Revision:
0:c945b4fe9a48
Child:
1:6b9f2af6613d
1

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 0:c945b4fe9a48 7 // A0 (PA_0) : ADC2 CH0
MikamiUitOpen 0:c945b4fe9a48 8 // A1 (PA_1) : ADC3 CH1
MikamiUitOpen 0:c945b4fe9a48 9 //
MikamiUitOpen 0:c945b4fe9a48 10 // 2016/11/10, Copyright (c) 2016 MIKAMI, Naoki
MikamiUitOpen 0:c945b4fe9a48 11 //----------------------------------------------------------
MikamiUitOpen 0:c945b4fe9a48 12
MikamiUitOpen 0:c945b4fe9a48 13 #include "mbed.h"
MikamiUitOpen 0:c945b4fe9a48 14
MikamiUitOpen 0:c945b4fe9a48 15 #ifndef STM32F446xx
MikamiUitOpen 0:c945b4fe9a48 16 #error Select STM32F446.
MikamiUitOpen 0:c945b4fe9a48 17 #endif
MikamiUitOpen 0:c945b4fe9a48 18
MikamiUitOpen 0:c945b4fe9a48 19 #ifndef F446_ADC_DUAL_HPP
MikamiUitOpen 0:c945b4fe9a48 20 #define F446_ADC_DUAL_HPP
MikamiUitOpen 0:c945b4fe9a48 21
MikamiUitOpen 0:c945b4fe9a48 22 namespace Mikami
MikamiUitOpen 0:c945b4fe9a48 23 {
MikamiUitOpen 0:c945b4fe9a48 24 class AdcDual
MikamiUitOpen 0:c945b4fe9a48 25 {
MikamiUitOpen 0:c945b4fe9a48 26 public:
MikamiUitOpen 0:c945b4fe9a48 27 // Constructor
MikamiUitOpen 0:c945b4fe9a48 28 // frequency: 標本化周波数
MikamiUitOpen 0:c945b4fe9a48 29 explicit AdcDual(int frequency);
MikamiUitOpen 0:c945b4fe9a48 30
MikamiUitOpen 0:c945b4fe9a48 31 // -1.0f <= data1, data2 <= 1.0f
MikamiUitOpen 0:c945b4fe9a48 32 virtual void Read(float &ad1, float &ad2);
MikamiUitOpen 0:c945b4fe9a48 33
MikamiUitOpen 0:c945b4fe9a48 34 // 0 <= data1, data2 <= 4095
MikamiUitOpen 0:c945b4fe9a48 35 virtual void Read(uint16_t &ad1, uint16_t &ad2);
MikamiUitOpen 0:c945b4fe9a48 36
MikamiUitOpen 0:c945b4fe9a48 37 protected:
MikamiUitOpen 0:c945b4fe9a48 38 float ToFloat(uint16_t x)
MikamiUitOpen 0:c945b4fe9a48 39 { return AMP_*(x - 2048); }
MikamiUitOpen 0:c945b4fe9a48 40
MikamiUitOpen 0:c945b4fe9a48 41 private:
MikamiUitOpen 0:c945b4fe9a48 42 static const float AMP_ = 1.0f/2048.0f;
MikamiUitOpen 0:c945b4fe9a48 43 static const uint32_t EOC23_ = ADC_CSR_EOC2 | ADC_CSR_EOC3;
MikamiUitOpen 0:c945b4fe9a48 44
MikamiUitOpen 0:c945b4fe9a48 45 // AD 変換が完了するまで待つ
MikamiUitOpen 0:c945b4fe9a48 46 void WaitDone()
MikamiUitOpen 0:c945b4fe9a48 47 { while((ADC->CSR & EOC23_) != EOC23_); }
MikamiUitOpen 0:c945b4fe9a48 48
MikamiUitOpen 0:c945b4fe9a48 49 // AD 変換器の外部トリガに使うタイマ (TIM8) の設定
MikamiUitOpen 0:c945b4fe9a48 50 void SetTim8(int frequency);
MikamiUitOpen 0:c945b4fe9a48 51
MikamiUitOpen 0:c945b4fe9a48 52 // for inhibition of copy constructor
MikamiUitOpen 0:c945b4fe9a48 53 AdcDual(const AdcDual&);
MikamiUitOpen 0:c945b4fe9a48 54 // for inhibition of substitute operator
MikamiUitOpen 0:c945b4fe9a48 55 AdcDual& operator=(const AdcDual&);
MikamiUitOpen 0:c945b4fe9a48 56 };
MikamiUitOpen 0:c945b4fe9a48 57 }
MikamiUitOpen 0:c945b4fe9a48 58 #endif // F446_ADC_DUAL_HPP