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@21:3731753ebf24, 2015-02-02 (annotated)

Committer:
MikamiUitOpen
Date:
Mon Feb 02 23:33:01 2015 +0000
Revision:
21:3731753ebf24
Parent:
19:900efc6796d4 
22

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 21:3731753ebf24 3 // 2015/02/03, Copyright (c) 2015 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 "DAC_MCP4922.hpp"
MikamiUitOpen 19:900efc6796d4 10
MikamiUitOpen 1:b59e98443a6e 11 namespace Mikami
MikamiUitOpen 19:900efc6796d4 12
MikamiUitOpen 1:b59e98443a6e 13 {
MikamiUitOpen 21:3731753ebf24 14 class DAC_MCP4922Dual : public DAC_MCP4922
MikamiUitOpen 1:b59e98443a6e 15 {
MikamiUitOpen 1:b59e98443a6e 16 public:
MikamiUitOpen 21:3731753ebf24 17 DAC_MCP4922Dual(
MikamiUitOpen 21:3731753ebf24 18 PinName mosi = SPI_MOSI, // D11
MikamiUitOpen 21:3731753ebf24 19 PinName sclk = SPI_SCK, // D13
MikamiUitOpen 21:3731753ebf24 20 PinName cs = SPI_CS, // D10
MikamiUitOpen 21:3731753ebf24 21 PinName ldac = SPI_MISO) // D12
MikamiUitOpen 21:3731753ebf24 22 : DAC_MCP4922(DAC_A, mosi, sclk, cs, ldac) {}
MikamiUitOpen 21:3731753ebf24 23
MikamiUitOpen 21:3731753ebf24 24
MikamiUitOpen 1:b59e98443a6e 25 void Write(float valA, float valB)
MikamiUitOpen 1:b59e98443a6e 26 {
MikamiUitOpen 21:3731753ebf24 27 SetCR(DAC_A);
MikamiUitOpen 21:3731753ebf24 28 DAC_MCP4922::Write(valA); // Write to DAC A
MikamiUitOpen 21:3731753ebf24 29 SetCR(DAC_B);
MikamiUitOpen 21:3731753ebf24 30 DAC_MCP4922::Write(valB); // Write to DAC B
MikamiUitOpen 21:3731753ebf24 31 Wait();
MikamiUitOpen 21:3731753ebf24 32 while (IsBusy()) {}
MikamiUitOpen 21:3731753ebf24 33 Ldac();
MikamiUitOpen 1:b59e98443a6e 34 }
MikamiUitOpen 1:b59e98443a6e 35
MikamiUitOpen 1:b59e98443a6e 36 void Write(uint16_t valA, uint16_t valB)
MikamiUitOpen 1:b59e98443a6e 37 {
MikamiUitOpen 21:3731753ebf24 38 SetCR(DAC_A);
MikamiUitOpen 21:3731753ebf24 39 DAC_MCP4922::Write(valA); // Write to DAC A
MikamiUitOpen 21:3731753ebf24 40 SetCR(DAC_B);
MikamiUitOpen 21:3731753ebf24 41 DAC_MCP4922::Write(valB); // Write to DAC B
MikamiUitOpen 21:3731753ebf24 42 Wait();
MikamiUitOpen 21:3731753ebf24 43 while (IsBusy()) {}
MikamiUitOpen 21:3731753ebf24 44 Ldac();
MikamiUitOpen 1:b59e98443a6e 45 }
MikamiUitOpen 1:b59e98443a6e 46 };
MikamiUitOpen 1:b59e98443a6e 47 }
MikamiUitOpen 1:b59e98443a6e 48 #endif // DAC_MCP4922_DUAL_HPP