|
|
#include "LD3320.h"
#include "LD3320_config.h"
#define DATE_A Enum_Number //数组二维数值
#define DATE_B 30 //数组一维数值
uint8 nAsrStatus = 0;
uint8 nLD_Mode = LD_MODE_IDLE
uint8 ucRegVal;
uint8 LD3320_Identified_Flag_bit = LD_ASR_NONE
uint8 nAsrRes=0;
uint8 k, flag;
uint8 nAsrAddLength;
uint8 pCode[DATE_A];
unsigned int Number_C = 0;
static uint8 LD_AsrAddFixed(void)
{
//添加关键词用户添加或修改
uint8 sRecog[Enum_Number][DATE_B] = {
"ni hao",
"kai qi zhu wo deng", //开启主卧灯
"guan bi zhu wo deng", //关闭主卧灯
"kai qi ci wo deng", //开启次卧灯
"guan bi ci wo deng", //关闭次卧灯
"kai qi chu fang deng", //开启厨房灯
"guan bi chu fang deng", //关闭厨房灯
"kai qi ke ting deng", //开启客厅灯
"guan bi ke ting deng", //关闭客厅灯
"kai qi feng shan", //开启客厅灯
"guan bi feng shan", //关闭客厅灯
"jie shao yi xia zi ji",
"ying tao xiao wan zi",
"xiao wan zi",
"quan bu kai qi",
"quan bu guan bi",
"kai qi ge ren mo shi",
"kai qi pu tong mo shi",
"cha kan wen shi du",
"cha kan guang du"
};
for(Number_C=0;Number_C < Enum_Number;Number_C++)
{
pCode[Number_C]=Number_C+1;
}
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);
LD3320_delay(1);
LD_WriteReg(0x08, 0x00);
LD3320_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;
}
///相关初始化
void LD3320_init(void)
{
//delay_init();
LD3320_GPIO_Cfg();
LD3320_EXTI_Cfg();
LD3320_SPI_cfg();
LD_reset();
nAsrStatus = LD_ASR_NONE;//初始状态：没有在作ASR
}
void LD3320_Subject(void)
{
switch(nAsrStatus)
{
case LD_ASR_RUNING: //表示LD3320正在作ASR识别中
break;
case LD_ASR_ERROR: // 表示一次识别流程中LD3320芯片内部出现不正确的状态
break;
case LD_ASR_NONE: //表示没有在作ASR识别
nAsrStatus=LD_ASR_RUNING;
if (RunASR()==0) //启动一次ASR识别流程：ASR初始化，ASR添加关键词语，启动ASR运算
{
nAsrStatus = LD_ASR_ERROR;
}
break;
case LD_ASR_FOUNDOK: //表示一次识别流程结束后，有一个识别结果
nAsrRes = LD_GetResult();//一次ASR识别流程结束，去取ASR识别结果
printf("\r\n识别码:%d\r\n", nAsrRes);
LD3320_Identified_Flag_bit=LD_ASR_FOUNDOK;
nAsrStatus = LD_ASR_NONE;
break;
case LD_ASR_FOUNDZERO:
default:
nAsrStatus = LD_ASR_NONE;
break;
}//switch
}
static void LD3320_GPIO_Cfg(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
RCC_APB2PeriphClockCmd(LD3320RST_GPIO_CLK | LD3320CS_GPIO_CLK,ENABLE);
//LD_CS /RSET
GPIO_InitStructure.GPIO_Pin =LD3320CS_PIN;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_Init(LD3320CS_GPIO_PORT,&GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin =LD3320RST_PIN;
GPIO_Init(LD3320RST_GPIO_PORT,&GPIO_InitStructure);
}
static void LD3320_EXTI_Cfg(void)
{
EXTI_InitTypeDef EXTI_InitStructure;
NVIC_InitTypeDef NVIC_InitStructure;
GPIO_InitTypeDef GPIO_InitStructure;
RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO,ENABLE);
RCC_APB2PeriphClockCmd(LD3320IRQ_GPIO_CLK, ENABLE);
GPIO_InitStructure.GPIO_Pin =LD3320IRQ_PIN;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(LD3320IRQ_GPIO_PORT, &GPIO_InitStructure);
//外部中断线配置
GPIO_EXTILineConfig(LD3320IRQEXIT_PORTSOURCE, LD3320IRQPINSOURCE);
EXTI_InitStructure.EXTI_Line = LD3320IRQEXITLINE;
EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
EXTI_InitStructure.EXTI_Trigger =EXTI_Trigger_Falling;
EXTI_InitStructure.EXTI_LineCmd = ENABLE;
EXTI_Init(&EXTI_InitStructure);
//中断嵌套配置
NVIC_InitStructure.NVIC_IRQChannel = LD3320IRQN;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
}
static void LD3320_SPI_cfg(void)
{
SPI_InitTypeDef SPI_InitStructure;
GPIO_InitTypeDef GPIO_InitStructure;
//spi端口配置
RCC_APB2PeriphClockCmd(LD3320SPI_CLK,ENABLE);
RCC_APB2PeriphClockCmd(LD3320WR_GPIO_CLK | LD3320SPIMISO_GPIO_CLK | LD3320SPIMOSI_GPIO_CLK | LD3320SPISCK_GPIO_CLK,ENABLE);
GPIO_InitStructure.GPIO_Pin = LD3320SPIMISO_PIN;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_Init(LD3320SPIMISO_GPIO_PORT,&GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = LD3320SPIMOSI_PIN;
GPIO_Init(LD3320SPIMOSI_GPIO_PORT,&GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = LD3320SPISCK_PIN;
GPIO_Init(LD3320SPISCK_GPIO_PORT,&GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = LD3320WR_PIN;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_Init(LD3320WR_GPIO_PORT, &GPIO_InitStructure);
LD_CS_H();
SPI_Cmd(LD3320SPI, DISABLE);
SPI_InitStructure.SPI_Direction = SPI_Direction_2Lines_FullDuplex; //全双工
SPI_InitStructure.SPI_Mode = SPI_Mode_Master; //主模式
SPI_InitStructure.SPI_DataSize = SPI_DataSize_8b; //8位
SPI_InitStructure.SPI_CPOL = SPI_CPOL_High; //时钟极性 空闲状态时，SCK保持低电平
SPI_InitStructure.SPI_CPHA = SPI_CPHA_1Edge; //时钟相位 数据采样从第一个时钟边沿开始
SPI_InitStructure.SPI_NSS = SPI_NSS_Soft; //软件产生NSS
SPI_InitStructure.SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_64; //波特率控制 SYSCLK/128
SPI_InitStructure.SPI_FirstBit = SPI_FirstBit_MSB; //数据高位在前
SPI_InitStructure.SPI_CRCPolynomial = 7; //CRC多项式寄存器初始值为7
SPI_Init(LD3320SPI, &SPI_InitStructure);
SPI_Cmd(LD3320SPI, ENABLE);
}
///中间层
void EXTI15_10_IRQHandler(void)
{
if(EXTI_GetITStatus(LD3320IRQEXITLINE)!= RESET )
{
ProcessInt();
printf("\r\n运行中，您请说!\r\n");
EXTI_ClearFlag(LD3320IRQEXITLINE);
EXTI_ClearITPendingBit(LD3320IRQEXITLINE);//清除LINE上的中断标志位
}
}
static void LD3320_delay(unsigned long uldata)
{
delay_ms(uldata);
}
static uint8 RunASR(void)
{
uint8 i=0;
uint8 asrflag=0;
for (i=0; i<5; i++) //防止由于硬件原因导致LD3320芯片工作不正常，所以一共尝试5次启动ASR识别流程
{
LD_AsrStart(); //初始化ASR
LD3320_delay(10);
if (LD_AsrAddFixed()==0) //添加关键词语到LD3320芯片中
{
LD_reset(); //LD3320芯片内部出现不正常，立即重启LD3320芯片
LD3320_delay(20); //并从初始化开始重新ASR识别流程
continue;
}
LD3320_delay(10);
if (LD_AsrRun() == 0)
{
LD_reset(); //LD3320芯片内部出现不正常，立即重启LD3320芯片
LD3320_delay(20);//并从初始化开始重新ASR识别流程
continue;
}
asrflag=1;
break; //ASR流程启动成功，退出当前for循环。开始等待LD3320送出的中断信号
}
return asrflag;
}
static void LD_reset(void)
{
LD_RST_H();
LD3320_delay(10);
LD_RST_L();
LD3320_delay(10);
LD_RST_H();
LD3320_delay(10);
LD_CS_L();
LD3320_delay(10);
LD_CS_H();
LD3320_delay(10);
}
static void LD_AsrStart(void)
{
LD_Init_ASR();
}
uint8 LD_Check_ASRBusyFlag_b2(void)
{
uint8 j;
uint8 flag = 0;
for (j=0; j<10; j++)
{
if (LD_ReadReg(0xb2) == 0x21)
{
flag = 1;
break;
}
LD3320_delay(10);
}
return flag;
}
///中间层end
///寄存器操作
static uint8 spi_send_byte(uint8 byte)
{
while (SPI_I2S_GetFlagStatus(LD3320SPI, SPI_I2S_FLAG_TXE) == RESET);
SPI_I2S_SendData(LD3320SPI,byte);
while (SPI_I2S_GetFlagStatus(LD3320SPI,SPI_I2S_FLAG_RXNE) == RESET);
return SPI_I2S_ReceiveData(LD3320SPI);
}
static void LD_WriteReg(uint8 data1,uint8 data2)
{
LD_CS_L();
LD_SPIS_L();
spi_send_byte(0x04);
spi_send_byte(data1);
spi_send_byte(data2);
LD_CS_H();
}
static uint8 LD_ReadReg(uint8 reg_add)
{
uint8 i;
LD_CS_L();
LD_SPIS_L();
spi_send_byte(0x05);
spi_send_byte(reg_add);
i=spi_send_byte(0x00);
LD_CS_H();
return(i);
}
static uint8 LD_GetResult(void)
{
return LD_ReadReg(0xc5);
}
static uint8 LD_AsrRun(void)
{
LD_WriteReg(0x35, MIC_VOL);
LD_WriteReg(0x1C, 0x09);
LD_WriteReg(0xBD, 0x20);
LD_WriteReg(0x08, 0x01);
LD3320_delay( 5 );
LD_WriteReg(0x08, 0x00);
LD3320_delay( 5);
if(LD_Check_ASRBusyFlag_b2() == 0)
{
return 0;
}
LD_WriteReg(0xB2, 0xff);
LD_WriteReg(0x37, 0x06);
LD_WriteReg(0x37, 0x06);
LD3320_delay(5);
LD_WriteReg(0x1C, 0x0b);
LD_WriteReg(0x29, 0x10);
LD_WriteReg(0xBD, 0x00);
return 1;
}
static void ProcessInt(void)
{
uint8 nAsrResCount=0;
ucRegVal = LD_ReadReg(0x2B);
// 语音识别产生的中断
//（有声音输入，不论识别成功或失败都有中断）
LD_WriteReg(0x29,0) ;
LD_WriteReg(0x02,0) ;
if((ucRegVal & 0x10) && LD_ReadReg(0xb2)==0x21 && LD_ReadReg(0xbf)==0x35)
{
nAsrResCount = LD_ReadReg(0xba);
if(nAsrResCount>0 && nAsrResCount<=4)
{
nAsrStatus=LD_ASR_FOUNDOK;
}
else
{
nAsrStatus=LD_ASR_FOUNDZERO;
}
}
else
{
nAsrStatus=LD_ASR_FOUNDZERO;//执行没有识别
}
LD_WriteReg(0x2b,0);
LD_WriteReg(0x1C,0);//写0:ADC不可用
LD_WriteReg(0x29,0);
LD_WriteReg(0x02,0);
LD_WriteReg(0x2B,0);
LD_WriteReg(0xBA,0);
LD_WriteReg(0xBC,0);
LD_WriteReg(0x08,1);//清除FIFO_DATA
LD_WriteReg(0x08,0);//清除FIFO_DATA后 再次写0
}
static void LD_Init_Common(void)
{
LD_ReadReg(0x06);
LD_WriteReg(0x17, 0x35);
LD3320_delay(5);
LD_ReadReg(0x06);
LD_WriteReg(0x89, 0x03);
LD3320_delay(5);
LD_WriteReg(0xCF, 0x43);
LD3320_delay(5);
LD_WriteReg(0xCB, 0x02);
/*PLL setting*/
LD_WriteReg(0x11, LD_PLL_11);
if (nLD_Mode == LD_MODE_MP3)
{
LD_WriteReg(0x1E, 0x00);
LD_WriteReg(0x19, LD_PLL_MP3_19);
LD_WriteReg(0x1B, LD_PLL_MP3_1B);
LD_WriteReg(0x1D, LD_PLL_MP3_1D);
}
else
{
LD_WriteReg(0x1E,0x00);
LD_WriteReg(0x19, LD_PLL_ASR_19);
LD_WriteReg(0x1B, LD_PLL_ASR_1B);
LD_WriteReg(0x1D, LD_PLL_ASR_1D);
}
LD3320_delay(5);
LD_WriteReg(0xCD, 0x04);
LD_WriteReg(0x17, 0x4c);
LD3320_delay(1);
LD_WriteReg(0xB9, 0x00);
LD_WriteReg(0xCF, 0x4F);
LD_WriteReg(0x6F, 0xFF);
}
static void LD_Init_ASR(void)
{
nLD_Mode=LD_MODE_ASR_RUN;
LD_Init_Common();
LD_WriteReg(0xBD, 0x00);
LD_WriteReg(0x17, 0x48);
LD3320_delay(5);
LD_WriteReg(0x3C, 0x80);
LD_WriteReg(0x3E, 0x07);
LD_WriteReg(0x38, 0xff);
LD_WriteReg(0x3A, 0x07);
LD_WriteReg(0x40, 0);
LD_WriteReg(0x42, 8);
LD_WriteReg(0x44, 0);
LD_WriteReg(0x46, 8);
LD3320_delay( 1 );
}
|
|
