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

TIM4_SlaveSelect.hpp

Committer:
MikamiUitOpen
Date:
2015-07-25
Revision:
8:543daa087bd5
Parent:
6:9deca4a06c8c

File content as of revision 8:543daa087bd5:

//--------------------------------------------------------------
//  Class for generate SPI slave select using TIM4
//
//  PB_6 (D10), PB_7, PB_8 (D15), and PB_9 (D14) can be used
//  2015/03/31, Copyright (c) 2015 MIKAMI, Naoki
//--------------------------------------------------------------

#ifndef TIM4_SLAVESELECT_HPP
#define TIM4_SLAVESELECT_HPP

#include "mbed.h"

namespace Mikami
{
    class TIM4_SlaveSelect
    {
    public:
        TIM4_SlaveSelect(
            uint16_t psc,   // prescaler
            uint16_t arr,   // auto-reload register
            PinName pin)    // pin name
            : myTim_(TIM4)
        {
            if ( (pin != PB_6) && (pin != PB_7)
               &&(pin != PB_8) && (pin != PB_9) )
            {
                fprintf(stderr, "\r\nIllegal pin name in TIM4_SlaveSelect\r\n");
                while (true) {}
            }

            PwmOut css(pin);            // for slave select
            myTim_->CR1 |= TIM_CR1_OPM; // one-pulse mode
            myTim_->PSC = psc;          // prescaler
            myTim_->ARR = arr;          // pulse width
            if (pin == PB_6) myTim_->CCR1 = 1;
            if (pin == PB_7) myTim_->CCR2 = 1;
            if (pin == PB_8) myTim_->CCR3 = 1;
            if (pin == PB_9) myTim_->CCR4 = 1;
        }

        // Generate slave select
        void SlaveSelect()
        {
            myTim_->CNT = 1;            // Set counter 1
            myTim_->CR1 |= TIM_CR1_CEN; // Enable TIM4
        }

    private:
        TIM_TypeDef* const myTim_;

        // Forbid to use copy constructor
        TIM4_SlaveSelect(const TIM4_SlaveSelect&);
        // Forbid to use substitution operator
        TIM4_SlaveSelect operator=(const TIM4_SlaveSelect&);
    };
}
#endif  // TIM4_SLAVESELECT_HPP