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

tim4_slaveSelect.hpp@21:3731753ebf24, 2015-02-02 (annotated)

Committer:
MikamiUitOpen
Date:
Mon Feb 02 23:33:01 2015 +0000
Revision:
21:3731753ebf24
Parent:
14:6c60601c1834 
22

Who changed what in which revision?

UserRevisionLine numberNew contents of line
MikamiUitOpen 0:6e0ed5adfe47 1 //------------------------------------------------------
MikamiUitOpen 0:6e0ed5adfe47 2 // Class for generate SPI slave select using TIM4
MikamiUitOpen 0:6e0ed5adfe47 3 //
MikamiUitOpen 0:6e0ed5adfe47 4 // Default pin assignments: PB_6 (D10)
MikamiUitOpen 0:6e0ed5adfe47 5 // PB_7, PB_8 (D15), and PB_9 (D14) also can be used
MikamiUitOpen 14:6c60601c1834 6 // 2014/12/21, Copyright (c) 2014 MIKAMI, Naoki
MikamiUitOpen 0:6e0ed5adfe47 7 //------------------------------------------------------
MikamiUitOpen 0:6e0ed5adfe47 8
MikamiUitOpen 0:6e0ed5adfe47 9 #ifndef TIM4_SLAVESELECT_HPP
MikamiUitOpen 0:6e0ed5adfe47 10 #define TIM4_SLAVESELECT_HPP
MikamiUitOpen 0:6e0ed5adfe47 11
MikamiUitOpen 0:6e0ed5adfe47 12 #include "mbed.h"
MikamiUitOpen 0:6e0ed5adfe47 13
MikamiUitOpen 0:6e0ed5adfe47 14 namespace Mikami
MikamiUitOpen 0:6e0ed5adfe47 15 {
MikamiUitOpen 0:6e0ed5adfe47 16 class Tim4_ss
MikamiUitOpen 0:6e0ed5adfe47 17 {
MikamiUitOpen 0:6e0ed5adfe47 18 public:
MikamiUitOpen 0:6e0ed5adfe47 19 Tim4_ss(uint16_t psc, // prescaler
MikamiUitOpen 0:6e0ed5adfe47 20 uint16_t arr = 18, // auto-reload register
MikamiUitOpen 0:6e0ed5adfe47 21 PinName pin = PB_6) // pin name
MikamiUitOpen 0:6e0ed5adfe47 22 : myTim_(TIM4)
MikamiUitOpen 0:6e0ed5adfe47 23 {
MikamiUitOpen 0:6e0ed5adfe47 24 PwmOut css(pin);
MikamiUitOpen 0:6e0ed5adfe47 25 myTim_->CR1 |= TIM_CR1_OPM; // one-pulse mode
MikamiUitOpen 0:6e0ed5adfe47 26 myTim_->PSC = psc; // prescaler
MikamiUitOpen 0:6e0ed5adfe47 27 myTim_->ARR = arr; // pulse width
MikamiUitOpen 0:6e0ed5adfe47 28 if (pin == PB_6) myTim_->CCR1 = 1;
MikamiUitOpen 0:6e0ed5adfe47 29 if (pin == PB_7) myTim_->CCR2 = 1;
MikamiUitOpen 0:6e0ed5adfe47 30 if (pin == PB_8) myTim_->CCR3 = 1;
MikamiUitOpen 0:6e0ed5adfe47 31 if (pin == PB_9) myTim_->CCR4 = 1;
MikamiUitOpen 0:6e0ed5adfe47 32 if ( (pin != PB_6) && (pin != PB_7)
MikamiUitOpen 0:6e0ed5adfe47 33 &&(pin != PB_8) && (pin != PB_9) )
MikamiUitOpen 0:6e0ed5adfe47 34 {
MikamiUitOpen 14:6c60601c1834 35 fprintf(stderr, "\r\nIllegal pin name in Tim4_ss class\r\n");
MikamiUitOpen 0:6e0ed5adfe47 36 while (true) {}
MikamiUitOpen 0:6e0ed5adfe47 37 }
MikamiUitOpen 0:6e0ed5adfe47 38 }
MikamiUitOpen 0:6e0ed5adfe47 39 // Generate slave select
MikamiUitOpen 0:6e0ed5adfe47 40 void SlaveSelect()
MikamiUitOpen 0:6e0ed5adfe47 41 {
MikamiUitOpen 11:a764fe59d343 42 myTim_->CNT = 0; // Set counter 0
MikamiUitOpen 0:6e0ed5adfe47 43 myTim_->CR1 |= TIM_CR1_CEN; // Enable TIM4
MikamiUitOpen 11:a764fe59d343 44 __NOP();
MikamiUitOpen 11:a764fe59d343 45 __NOP();
MikamiUitOpen 11:a764fe59d343 46 __NOP();
MikamiUitOpen 11:a764fe59d343 47 __NOP();
MikamiUitOpen 11:a764fe59d343 48 #ifdef __STM32F411xE_H
MikamiUitOpen 12:479d18a09e87 49 __NOP();
MikamiUitOpen 12:479d18a09e87 50 __NOP();
MikamiUitOpen 11:a764fe59d343 51 #endif // __STM32F411xE_H
MikamiUitOpen 0:6e0ed5adfe47 52 }
MikamiUitOpen 0:6e0ed5adfe47 53 private:
MikamiUitOpen 0:6e0ed5adfe47 54 TIM_TypeDef* myTim_;
MikamiUitOpen 0:6e0ed5adfe47 55
MikamiUitOpen 0:6e0ed5adfe47 56 // Forbid to use copy constructor
MikamiUitOpen 0:6e0ed5adfe47 57 Tim4_ss(const Tim4_ss&);
MikamiUitOpen 0:6e0ed5adfe47 58 // Forbid to use substitution operator
MikamiUitOpen 0:6e0ed5adfe47 59 Tim4_ss operator=(const Tim4_ss&);
MikamiUitOpen 0:6e0ed5adfe47 60 };
MikamiUitOpen 0:6e0ed5adfe47 61 }
MikamiUitOpen 0:6e0ed5adfe47 62 #endif // TIM4_SLAVESELECT_HPP