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//ISD4004 DRIVER

#include"mcu-define.h"
#include"delay.h"
#include"isd4004.h"

sbit ISD4XXX_SCLK=P3^6;
sbit ISD4XXX_MISO =P3^4;
sbit ISD4XXX_MOSI =P3^5;
sbit ISD4XXX_SS =P3^7;


//ISD4004 命令碼
/*
指令 8位控制碼，16位地址碼 操作摘要
POWERUP 00100xxx（xxxxxxxxxxxxxxxx） 上電：等待TPUD后器件可以工作
SET PLAY 11100xxx（A15~A0） 從指令地址開(kāi)始放音，須后跟PLAY指令，使放音繼續(xù)
PLAY 11110xxx（xxxxxxxxxxxxxxx） 從當(dāng)前地址開(kāi)始放音（直至EOM或OVF）
SET REC 10110xxx（A15~A0） 從指定地址開(kāi)始錄音，須后跟REC指令，使錄音繼續(xù)
REC 110110（xxxxxxxxxxxxxxx） 從當(dāng)前地址開(kāi)始錄音（直至OVF或停止）
SET MC 11101xxx（A15~A0） 從指定地址開(kāi)始快進(jìn)，須后跟MC指令，使快進(jìn)繼續(xù)
MC 11111xxx（xxxxxxxxxxxxxxx） 執(zhí)行快進(jìn)，直到EOM，若再無(wú)信息，則進(jìn)入OVF狀態(tài)
STOP 0x110xxx（xxxxxxxxxxxxxxx） 停止當(dāng)前操作
STOP PWRDN 0X01Xxxx（xxxxxxxxxxxxxxx） 停止當(dāng)前的操作并掉電
RINT 0X110xxx（xxxxxxxxxxxxxxxx） 讀狀態(tài)；OVF和EOM

*/
#define ISD4XXX_POWER_UP 0x20
#define ISD4XXX_SET_PLAY 0xe0
#define ISD4XXX_PLAY 0xf0
#define ISD4XXX_SET_REC 0xb0
#define ISD4XXX_REC 0xd8
#define ISD4XXX_SET_MC 0xe8
#define ISD4XXX_MC 0xf8
#define ISD4XXX_STOP 0x30
#define ISD4XXX_STOP_PWRDN 0x10

#define ISD4XXX_RINT 0x30



unsigned char isd_spi(ISD_COMMAND * isdcommand)
{
unsigned char i;
unsigned long miso;
unsigned long mosi=(unsigned long *)isdcommand;
ISD4XXX_MISO=1;
ISD4XXX_SCLK=0;
ISD4XXX_SS=0;
miso=0;
for (i=0;i<24;i++)
{
miso<<=1;
miso |=(unsigned long )ISD4XXX_MISO;

if (mosi & 0x800000 ==0x1) ISD4XXX_MOSI =1;
else ISD4XXX_MOSI = 0;

ISD4XXX_SCLK=1;
mosi <<= 1;
ISD4XXX_SCLK=0;
}
ISD4XXX_SCLK=1;

return (char *)(miso+1);
}

void ISD4XXX_Record(unsigned int address)
{
// 1. power up
// 2. TPUD(25ms) *2;
// 3. power up;
// 4. set record address = 00;
// 5. rec command .
ISD_COMMAND isd_command;
isd_command.command_code=ISD4XXX_POWER_UP;
// isd_command.int_address=0;
isd_spi(&isd_command);
soft_delay_10ms(3);
soft_delay_10ms(3);

isd_spi(&isd_command);

isd_command.command_code=ISD4XXX_SET_REC;
isd_command.int_address=address;
isd_spi(&isd_command);

isd_command.command_code=ISD4XXX_REC ;
// isd_command.int_address=0;
isd_spi(&isd_command);
}

void ISD4XXX_Play(unsigned int address)
{
// 1. POWER UP
// 2. Delay tpuid.
// 3. SET PLAY WITH ADDRESS 0;
// 4. SEND play command.
ISD_COMMAND isd_command;
isd_command.command_code=ISD4XXX_POWER_UP;
// isd_command.int_address=0;
isd_spi(&isd_command);
soft_delay_10ms(3);

isd_command.command_code=ISD4XXX_SET_PLAY;
isd_command.int_address=address;
isd_spi(&isd_command);

isd_command.command_code=ISD4XXX_PLAY;
// isd_command.int_address=0;
isd_spi(&isd_command);
}

void ISD4XXX_Stop(void)
{
ISD_COMMAND isd_command;
isd_command.command_code=ISD4XXX_STOP;
isd_spi(&isd_command);
}

void ISD4XXX_PowerOff(void)
{
ISD_COMMAND isd_command;
isd_command.command_code=0x08;
isd_spi(&isd_command);
}

void ISD4XXX_PowerOn(void)
{
ISD_COMMAND isd_command;
isd_command.command_code=0x04;
isd_spi(&isd_command);
}


static code unsigned int address_tab[22]=
{
0,
1,
2,
3,
4,
5,
6,
7,
8,
9,
10,
11,
12,
13,
14,
15,
16,
17,
18,
19,
20,
21
};

void PlaySound(unsigned char index)
{

ISD4XXX_Play(address_tab[index]);
}
//end of file