不韋 呂 / UITDSP_ADDA

Class library for internal ADC and DAC connected by SPI. 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. Validated for ST Nucleo F401RE, F411RE. 内蔵 ADC と，SPI 接続の DAC のためのクラスライブラリ．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．ST Nucleo F401RE，F411RE で動作を確認．

Dependents:   UITDSP_ADDA_Example UIT2_MovingAv_Intr UIT2_VariableFIR UIT2_VowelSynthesizer ... more

DAC_MCP4922Dual.hpp@7:14cdca8b48f8, 2015-04-19 (annotated)

Committer:
MikamiUitOpen
Date:
Sun Apr 19 09:39:28 2015 +0000
Revision:
7:14cdca8b48f8
Parent:
5:ff25db28bc64 
8

Who changed what in which revision?

UserRevisionLine numberNew contents of line
MikamiUitOpen 0:2cdd5c91d975 1 //------------------------------------------------------
MikamiUitOpen 2:0cf4cc40ee02 2 // Class for dual channel DAC in MCP4922
MikamiUitOpen 7:14cdca8b48f8 3 // 2015/04/01, Copyright (c) 2015 MIKAMI, Naoki
MikamiUitOpen 0:2cdd5c91d975 4 //------------------------------------------------------
MikamiUitOpen 0:2cdd5c91d975 5
MikamiUitOpen 0:2cdd5c91d975 6 #ifndef DAC_MCP4922_DUAL_HPP
MikamiUitOpen 0:2cdd5c91d975 7 #define DAC_MCP4922_DUAL_HPP
MikamiUitOpen 0:2cdd5c91d975 8
MikamiUitOpen 0:2cdd5c91d975 9 #include "DAC_MCP4922.hpp"
MikamiUitOpen 0:2cdd5c91d975 10
MikamiUitOpen 0:2cdd5c91d975 11 namespace Mikami
MikamiUitOpen 2:0cf4cc40ee02 12
MikamiUitOpen 0:2cdd5c91d975 13 {
MikamiUitOpen 2:0cf4cc40ee02 14 class DAC_MCP4922Dual : public DAC_MCP4922
MikamiUitOpen 0:2cdd5c91d975 15 {
MikamiUitOpen 0:2cdd5c91d975 16 public:
MikamiUitOpen 2:0cf4cc40ee02 17 DAC_MCP4922Dual(
MikamiUitOpen 2:0cf4cc40ee02 18 PinName mosi = SPI_MOSI, // D11
MikamiUitOpen 2:0cf4cc40ee02 19 PinName sclk = SPI_SCK, // D13
MikamiUitOpen 2:0cf4cc40ee02 20 PinName cs = SPI_CS, // D10
MikamiUitOpen 2:0cf4cc40ee02 21 PinName ldac = SPI_MISO) // D12
MikamiUitOpen 2:0cf4cc40ee02 22 : DAC_MCP4922(DAC_A, mosi, sclk, cs, ldac) {}
MikamiUitOpen 2:0cf4cc40ee02 23
MikamiUitOpen 2:0cf4cc40ee02 24
MikamiUitOpen 0:2cdd5c91d975 25 void Write(float valA, float valB)
MikamiUitOpen 0:2cdd5c91d975 26 {
MikamiUitOpen 2:0cf4cc40ee02 27 SetCR(DAC_A);
MikamiUitOpen 2:0cf4cc40ee02 28 DAC_MCP4922::Write(valA); // Write to DAC A
MikamiUitOpen 2:0cf4cc40ee02 29 SetCR(DAC_B);
MikamiUitOpen 2:0cf4cc40ee02 30 DAC_MCP4922::Write(valB); // Write to DAC B
MikamiUitOpen 2:0cf4cc40ee02 31 Wait();
MikamiUitOpen 2:0cf4cc40ee02 32 while (IsBusy()) {}
MikamiUitOpen 2:0cf4cc40ee02 33 Ldac();
MikamiUitOpen 0:2cdd5c91d975 34 }
MikamiUitOpen 0:2cdd5c91d975 35
MikamiUitOpen 0:2cdd5c91d975 36 void Write(uint16_t valA, uint16_t valB)
MikamiUitOpen 0:2cdd5c91d975 37 {
MikamiUitOpen 2:0cf4cc40ee02 38 SetCR(DAC_A);
MikamiUitOpen 2:0cf4cc40ee02 39 DAC_MCP4922::Write(valA); // Write to DAC A
MikamiUitOpen 2:0cf4cc40ee02 40 SetCR(DAC_B);
MikamiUitOpen 2:0cf4cc40ee02 41 DAC_MCP4922::Write(valB); // Write to DAC B
MikamiUitOpen 2:0cf4cc40ee02 42 Wait();
MikamiUitOpen 2:0cf4cc40ee02 43 while (IsBusy()) {}
MikamiUitOpen 2:0cf4cc40ee02 44 Ldac();
MikamiUitOpen 0:2cdd5c91d975 45 }
MikamiUitOpen 5:ff25db28bc64 46
MikamiUitOpen 5:ff25db28bc64 47 private:
MikamiUitOpen 5:ff25db28bc64 48 void Wait() // Little wait
MikamiUitOpen 5:ff25db28bc64 49 { __NOP(); __NOP(); __NOP(); }
MikamiUitOpen 0:2cdd5c91d975 50 };
MikamiUitOpen 0:2cdd5c91d975 51 }
MikamiUitOpen 0:2cdd5c91d975 52 #endif // DAC_MCP4922_DUAL_HPP