不韋 呂 / UIT_ADDA

Class library for internal ADC and DAC connected by SPI. ADC is triggered by TIM2. This library support clock generator using TIM3 for switched-capacitor filter to smooth output signal of DAC. This library includes derivative class to support interrupt occured in end of AD conversion. Slave select of SPI for DAC is generated using TIM4. Validated for ST Nucleo F401RE, F411RE.　New version. 内蔵 ADC と，SPI 接続の DAC のためのクラスライブラリ．ADC の変換開始トリガは TIM2 で発生．DAC の出力信号を平滑化するためのスイッチトキャパシタフィルタ用のクロックは TIM3 を使用．DAC の SPI 用スレーブ選択信号は TIM4 で発生．ST Nucleo F401RE，F411RE で動作を確認．新バージョン

Dependents:   UIT2_MovingAverage UIT2_AllpassReverb UIT2_CombReverb UIT2_FIR_LPF_Symmetry ... more

DAC_MCP4922Dual.hpp@1:b59e98443a6e, 2014-10-22 (annotated)

Committer:
MikamiUitOpen
Date:
Wed Oct 22 08:59:28 2014 +0000
Revision:
1:b59e98443a6e
Child:
2:2a3b4ed3eb58
2

Who changed what in which revision?

UserRevisionLine numberNew contents of line
MikamiUitOpen 1:b59e98443a6e 1 //------------------------------------------------------
MikamiUitOpen 1:b59e98443a6e 2 // Class for dual channel DAC in MCP4922
MikamiUitOpen 1:b59e98443a6e 3 // 2014/10/22, Copyright (c) 2014 MIKAMI, Naoki
MikamiUitOpen 1:b59e98443a6e 4 //------------------------------------------------------
MikamiUitOpen 1:b59e98443a6e 5
MikamiUitOpen 1:b59e98443a6e 6 #ifndef DAC_MCP4922_DUAL_HPP
MikamiUitOpen 1:b59e98443a6e 7 #define DAC_MCP4922_DUAL_HPP
MikamiUitOpen 1:b59e98443a6e 8
MikamiUitOpen 1:b59e98443a6e 9 //#include "mbed.h"
MikamiUitOpen 1:b59e98443a6e 10 #include "DAC_MCP4922.hpp"
MikamiUitOpen 1:b59e98443a6e 11 namespace Mikami
MikamiUitOpen 1:b59e98443a6e 12 {
MikamiUitOpen 1:b59e98443a6e 13 class DAC_MCP4922Dual
MikamiUitOpen 1:b59e98443a6e 14 {
MikamiUitOpen 1:b59e98443a6e 15 public:
MikamiUitOpen 1:b59e98443a6e 16 DAC_MCP4922Dual()
MikamiUitOpen 1:b59e98443a6e 17 : myDac1_(DAC_MCP4922::DAC_A),
MikamiUitOpen 1:b59e98443a6e 18 myDac2_(DAC_MCP4922::DAC_B)
MikamiUitOpen 1:b59e98443a6e 19 { myDac1_.LdacH(); }
MikamiUitOpen 1:b59e98443a6e 20
MikamiUitOpen 1:b59e98443a6e 21 void Write(float valA, float valB)
MikamiUitOpen 1:b59e98443a6e 22 {
MikamiUitOpen 1:b59e98443a6e 23 myDac1_.Write(valA); // Write to DAC A
MikamiUitOpen 1:b59e98443a6e 24 while (myDac1_.IsBusy()) {}
MikamiUitOpen 1:b59e98443a6e 25 myDac2_.Write(valB); // Write to DAC B
MikamiUitOpen 1:b59e98443a6e 26 while (myDac2_.IsBusy()) {}
MikamiUitOpen 1:b59e98443a6e 27 myDac1_.Ldac();
MikamiUitOpen 1:b59e98443a6e 28 }
MikamiUitOpen 1:b59e98443a6e 29
MikamiUitOpen 1:b59e98443a6e 30 void Write(uint16_t valA, uint16_t valB)
MikamiUitOpen 1:b59e98443a6e 31 {
MikamiUitOpen 1:b59e98443a6e 32 myDac1_.Write(valA); // Write to DAC A
MikamiUitOpen 1:b59e98443a6e 33 while (myDac1_.IsBusy()) {}
MikamiUitOpen 1:b59e98443a6e 34 myDac2_.Write(valB); // Write to DAC B
MikamiUitOpen 1:b59e98443a6e 35 while (myDac2_.IsBusy()) {}
MikamiUitOpen 1:b59e98443a6e 36 myDac1_.Ldac(); // dual load
MikamiUitOpen 1:b59e98443a6e 37 }
MikamiUitOpen 1:b59e98443a6e 38
MikamiUitOpen 1:b59e98443a6e 39 private:
MikamiUitOpen 1:b59e98443a6e 40 DAC_MCP4922 myDac1_;
MikamiUitOpen 1:b59e98443a6e 41 DAC_MCP4922 myDac2_;
MikamiUitOpen 1:b59e98443a6e 42 };
MikamiUitOpen 1:b59e98443a6e 43 }
MikamiUitOpen 1:b59e98443a6e 44 #endif // DAC_MCP4922_DUAL_HPP