static unsigned char LD_AsrRun(void)
{
LD_WriteReg(0x35, MIC_VOL); //麦克风音量
// LD_Write(0xB3, 0x0D); //
LD_WriteReg(0x1C, 0x09); //ADC开关控制，写09H Reserve 保留命令字
LD_WriteReg(0xBD, 0x20); //初始化控制寄存器 写入20H；
LD_WriteReg(0x08, 0x01); //清除FIFO内容第0位：写入->清除FIFO_DATA第二位
delay( 1 );
LD_WriteReg(0x08, 0x00); //
delay( 1 );
if(LD_Check_ASRBusyFlag_b2() == 0)
{
return 0;
}
LD_WriteReg(0xB2, 0xff); //
LD_WriteReg(0x37, 0x06); //
delay( 5 );
//LD_TEST();
LD_WriteReg(0x1C, 0x0b); //
LD_WriteReg(0x29, 0x10); //
LD_WriteReg(0xBD, 0x00); //
//EX0=1; //
EXTI_ClearITPendingBit(EXTI_Line5);
return 1;
}
uint8 LD_AsrRun() //开始识别
{
ld3320_write_reg(0x35, MIC_VOL);//麦克风音量
ld3320_write_reg(0xB3, 0xF); //灵敏度
ld3320_write_reg(0x1C, 0x09); //ADC开关控制 写09H Reserve保留命令字
ld3320_write_reg(0xBD, 0x20); //初始化控制寄存器 写入20H；Reserve保留命令字
ld3320_write_reg(0x08, 0x01); //清除FIFO内容第0位：写入1→清除FIFO_DATA 第2位：写入1→清除FIFO_EXT
delay_ms( 1 );
ld3320_write_reg(0x08, 0x00); //清除FIFO内容第0位（清除指定FIFO后再写入一次00H）
delay_ms( 1 );
if (LD_Check_ASRBusyFlag_b2() == 0) //芯片内部出错
{
return 0;
}
ld3320_write_reg(0xB2, 0xff); //ASR：DSP忙闲状态 0x21 表示闲，查询到为闲状态可以进行下一步 ??? 为什么不是read??
ld3320_write_reg(0x37, 0x06); //识别控制命令下发寄存器 写06H 通知DSP开始识别语音 下发前，需要检查B2寄存器
delay_ms( 5 );
LD_TEST();
ld3320_write_reg(0x1C, 0x0b); // ADC开关控制 写0BH 麦克风输入ADC通道可用
ld3320_write_reg(0x29, 0x10); //中断允许 第2位：FIFO 中断允许 第4位：同步中断允许 1允许；0不允许
ld3320_write_reg(0xBD, 0x00); //初始化控制寄存器 写入00 然后启动 为ASR模块
return 1;
}
// Return 1: success.
uint8 LD_AsrRun()
{
SendString("LD_AsrRun().");
SendLineEnd();
LD_WriteReg(0x35, MIC_VOL);
// LD_WriteReg(0xB3, 0x0D); // 用户阅读 开发手册 理解B3寄存器的调整对于灵敏度和识别距离的影响
LD_WriteReg(0x1C, 0x09);
LD_WriteReg(0xBD, 0x20);
LD_WriteReg(0x08, 0x01);
delay( 1 );
LD_WriteReg(0x08, 0x00);
delay( 1 );
if(LD_Check_ASRBusyFlag_b2() == 0)
{
return 0;
}
LD_WriteReg(0xB2, 0xff);
LD_WriteReg(0x37, 0x06);
delay( 5 );
LD_WriteReg(0x1C, 0x0b);
LD_WriteReg(0x29, 0x10);
LD_WriteReg(0xBD, 0x00);
EX0=1;
return 1;
}
// Return 1: success.
// 添加识别关键词语，开发者可以学习"语音识别芯片LD3320高阶秘籍.pdf"中关于垃圾词语吸收错误的用法
uint8 LD_AsrAddFixed()
{
uint8 k, flag;
SendString("\nLD_AsrAddFixed().");
SendLineEnd();
flag = 1;
for (k=0; k<ITEM_COUNT; k++)
{
if(LD_Check_ASRBusyFlag_b2() == 0)
{
flag = 0;
break;
}
LD_AsrAddFixed_ByIndex(k);
}
return flag;
}
static unsigned char LD_AsrAddFixed(void)
{
unsigned char k, flag;
unsigned char nAsrAddLength;
#define DATE_A 12 //数组二维数值
#define DATE_B 50 //数组以为数值
//添加关键词
unsigned char sRecog[DATE_A][DATE_B] = {
"ni shi shui", \
"ni zai na li", \
"wo shi shui", \
"xuan zhuan", \
"ting zhi", \
"chang shou ge", \
"xiang qian zou", \
"xiang hou tui", \
"yao tou", \
"niu yao", \
"zuo ge bo", \
"you ge bo", \
};
unsigned char pCode[DATE_A] = {
1, \
2, \
3, \
4, \
5, \
6, \
7, \
8, \
9, \
10, \
11, \
12, \
};
flag = 1;
for (k=0; k<DATE_A; k++)
{
if(LD_Check_ASRBusyFlag_b2() == 0)
{
flag = 0;
break;
}
LD_WriteReg(0xc1, pCode[k] );
LD_WriteReg(0xc3, 0);
LD_WriteReg(0x08, 0x04);
delay(1);
LD_WriteReg(0x08, 0x00);
delay(1);
for (nAsrAddLength=0; nAsrAddLength<DATE_B; nAsrAddLength++)
{
if (sRecog[k][nAsrAddLength] == 0)
break;
LD_WriteReg(0x5, sRecog[k][nAsrAddLength]);
}
LD_WriteReg(0xb9, nAsrAddLength);
LD_WriteReg(0xb2, 0xff);
LD_WriteReg(0x37, 0x04);
}
return flag;
}
