File content as of revision 7:6b4ca547cb88:

/** original: p07gbar/code/TLV320_Write_test/
 * modify by k4zuki
 * to control Dialog DA7212 codec
 */
#include "mbed.h"
#include "sinelookup.h"
// #include "TLV320.h"
// #include "DA7212.h"
// #include "I2S.h"
// #include "C12832.h"

// C12832 lcd(D11, D13, D12, D7, D10);
// C12832 lcd(PTD2, PTD1, PTD3, PTC3, PTD0);
// AnalogIn pot1 (A0);
// AnalogIn pot2 (A1);
// AnalogIn pot1 (PTB2);
// AnalogIn pot2 (PTB3);

#define SAMPLERATE 32000

/*
//DA7212 codec(I2C_SDA, I2C_SCL);
TLV320 codec(I2C_SDA, I2C_SCL);
I2S i2s(I2S_TRANSMIT, PTC1, PTB19, PTB18);

AnalogIn aIn(p19);
AnalogIn vol(p20);

float phase_l;
float phase_r;
int minibuf[16];
float skipper;
float volume;
float phase_kill;


extern "C" void HardFault_Handler()
{
    error("Hard Fault!\n");
}


void play(void)
{
    int to_write = i2s.max_fifo_points() - (i2s.fifo_points());
    for(int i = 0; i < to_write; i+=2) {
        minibuf[i] = int(float(sine16lookup[int(phase_l)])*volume);
        //minibuf[i] = int(sine16lookup[int(phase_l)]);
        minibuf[i+1] = int(float(sine16lookup[int(phase_r)])*volume);
        phase_l+=skipper;
        phase_r = phase_l + phase_kill;
        while(phase_l >= SINE16LENGTH) {
            phase_l -= SINE16LENGTH;
        }

        while(phase_r >= SINE16LENGTH) {
            phase_r -= SINE16LENGTH;
        }
        while(phase_r< 0) phase_r += SINE16LENGTH;
    }
    i2s.write(minibuf, to_write);
}
*/
/* main */
int main()
{
    I2S0_TCSR |= 1u<<31;
/*
    skipper = (aIn*49)+1;

    codec.power(true);
    codec.frequency(SAMPLERATE);
    codec.wordsize(16);
    codec.master(false);
    codec.headphone_volume(0.5);
    codec.start();

    i2s.frequency(SAMPLERATE);
    i2s.wordsize(16);
    i2s.stereomono(I2S_STEREO);
    i2s.masterslave(I2S_MASTER);
    i2s.attach(&play);
    i2s.start();
*/
    while(1)
    {;
/*
        skipper = (aIn*30)+1;

        volume = 1;
        phase_kill = (vol-0.5)*400;

        //printf("Skipper:%f, %i, %i\n\r",skipper, to_write,i2s.fifo_level());
*/
        /*if(flag)
        {
        printf(".");
        flag = false;
        }*/
    }

}
// #include "C12832.h"
//
// C12832 lcd(D11, D13, D12, D7, D10);
//
// AnalogIn pot1 (A0);
// AnalogIn pot2 (A1);
//
// int main()
// {
//     while(1) {
//         lcd.cls();
//         lcd.locate(0,3);
//         lcd.printf("Pot 1 = %.2f", (float)pot1);
//         lcd.locate(0,14);
//         lcd.printf("Pot 2 = %.2f", (float)pot2);
//         wait(0.1);
//     }
// }