//********************************************************************** 
/*
　　　『アナログデータロガー（ＳＤカード対応）』 
　■Ａ／Ｄ変換の精度
　　・10ビット 
　■チャネル数
　　・8チャネル 
　■記録媒体
　　・ＳＤカード 
　■記録形式
　　・ＣＳＶ形式
　■記録周期
　　・約0.1秒 
*/
//********************************************************************** 

#define		LED			PORTB.F7

#define		SW_START	PORTB.F6
#define		SW_STOP		PORTB.F5

#define		ON		1
#define		OFF		0

#define		CR		0x0d
#define		LF		0x0a

//********************************************************************** 

void	main()
{
	static	char	buf[50];
	short			cnt, channel, len, pnt;
	unsigned		ad;
	//
	ADCON1 = 0x10000000;
	TRISA  = 0b11111111;
	TRISB  = 0b01100000;
	//
	for (cnt = 0; cnt < 10; cnt++) {
		LED = ON;
		Delay_ms(50);
		LED = OFF;
		Delay_ms(50);
	}
	//
	Spi_Init_Advanced(MASTER_OSC_DIV64, DATA_SAMPLE_MIDDLE, CLK_IDLE_LOW, LOW_2_HIGH);
	if (!Mmc_Fat_Init(&PORTC, 2)) {
		Spi_Init_Advanced(MASTER_OSC_DIV16, DATA_SAMPLE_MIDDLE, CLK_IDLE_LOW, LOW_2_HIGH);
		while (1) {
			while (SW_START == 1) {
				Delay_ms(10);
			}
			Mmc_Fat_Assign("log.csv", 0xA0);
			Mmc_Fat_Rewrite();
			Mmc_Fat_Write("$START\r\n", 8);
			while (SW_STOP == 1) {
				pnt = 0;
				for (channel = 0; channel < 8; channel++) {
					ad = Adc_Read(channel);
					ad = (double)ad * 3.22265625;
					WordToStr(ad, &buf[pnt]);
					pnt += 6;
				}
				buf[5]  = ',';
				buf[11] = ',';
				buf[17] = ',';
				buf[23] = ',';
				buf[29] = ',';
				buf[35] = ',';
				buf[41] = ',';
				buf[47] = CR;
				buf[48] = LF;
				Mmc_Fat_Write(buf, 49);
				//
				LED = ON;
				Delay_ms(100);
				LED = OFF;
			}
			Mmc_Fat_Write("$STOP\r\n", 7);
			//
			for (cnt = 0; cnt < 10; cnt++) {
				LED = ON;
				Delay_ms(50);
				LED = OFF;
				Delay_ms(50);
			}
		}
	}
}//~!

//**********************************************************************