MSP430单片机语音识别芯片LD3320源程序 驱动源码.zip

#include "main.h" uint8 nLD_Mode = LD_MODE_IDLE; // 用来记录当前是在进行ASR识别还是在播放MP3 unsigned char ucRegVal; unsigned char ucHighInt; unsigned char ucLowInt; /***************************************** 函数功能 ；LD3320外部中断初始化P1_6 入口参数：无 出口参数：无 ******************************************/ void LD3320_EXTERINT_Init() { P1SEL&=~BIT6; P1DIR&=~BIT6; P1REN|=BIT6; P1OUT|=BIT6; P1IES|=BIT6; P1IE|=BIT6; P1IFG&=~BIT6; } /***************************************** 函数功能 ；LD3320控制端口初始化 入口参数：无 出口参数：无 ******************************************/ void LD3320_Port_Init() { P7OUT|=(BIT3+BIT4+BIT5+BIT6+BIT7); P7REN|=(BIT3+BIT4+BIT5+BIT6+BIT7); P7DIR|=(BIT3+BIT4+BIT5+BIT6+BIT7); DIR_LD_CS_OUT; DIR_LD_CLK_OUT; DIR_LD_DI_OUT; DIR_LD_DO_IN; DIR_LD_RST_OUT; DIR_LD_SPIS_OUT; } /***************************************** 函数功能 ；LD3320 SPI通信测试 入口参数：无 出口参数：无 ******************************************/ void Test_Information() { //测试读写是否正常 LD_reset(); LD_ReadReg(0x06); LD_WriteReg(0x35, 0x33); LD_WriteReg(0x1b, 0x55); LD_WriteReg(0xb3, 0xaa); nAsrRes=(LD_ReadReg(0x35)); nAsrRes=(LD_ReadReg(0x1b)); nAsrRes=(LD_ReadReg(0xb3)); //测试寄存器初始值是否正常 LD_reset(); nAsrRes=(LD_ReadReg(0x06)); nAsrRes=(LD_ReadReg(0x06)); nAsrRes=(LD_ReadReg(0x35)); nAsrRes=(LD_ReadReg(0xb3)); } /***************************************** 函数功能 ；LD3320写函数 入口参数：address LD3320地址 dataout LD3320数据 出口参数：无 ******************************************/ void LD_WriteReg( unsigned char address, unsigned char dataout ) { unsigned char i = 0; unsigned char command=0x04; CLR_LD_CS;//打开片选 __delay_cycles(500); ///////////////////////写命令 for(i=0;i<8;i++) { if ((command & 0x80)>0) SET_LD_DI; else CLR_LD_DI; __delay_cycles(500); CLR_LD_CLK; command = (command << 1); __delay_cycles(500); SET_LD_CLK; } /////////////////////写地址 for(i=0;i<8;i++) { if ((address & 0x80) >0) SET_LD_DI; else CLR_LD_DI; __delay_cycles(500); CLR_LD_CLK; address = (address << 1); __delay_cycles(500); SET_LD_CLK; } //////////////////////写数据 for(i=0;i<8;i++) { if ((dataout & 0x80) >0) SET_LD_DI; else CLR_LD_DI; __delay_cycles(500); CLR_LD_CLK; dataout = (dataout << 1); __delay_cycles(500); SET_LD_CLK; } __delay_cycles(500); SET_LD_CS;//关闭片选 } /***************************************** 函数功能 ；LD3320读函数 入口参数：address LD3320地址 出口参数：datain LD3320读出的收据 ******************************************/ unsigned char LD_ReadReg( unsigned char address ) { unsigned char i = 0; unsigned char datain =0 ; unsigned char command=0x05; CLR_LD_CS;//打开片选 __delay_cycles(2000); ///////////////////////写命令 for(i=0;i<8;i++) { if ((command & 0x80)>0) SET_LD_DI; else CLR_LD_DI; __delay_cycles(2000); CLR_LD_CLK; command = (command << 1); __delay_cycles(2000); SET_LD_CLK; } /////////////////////写地址 for(i=0;i<8;i++) { if ((address & 0x80) >0) SET_LD_DI; else CLR_LD_DI; __delay_cycles(2000); CLR_LD_CLK; address = (address << 1); __delay_cycles(2000); SET_LD_CLK; __delay_cycles(2000); } /////////////////////读数据 DIR_LD_DO_IN; for(i=0;i<8;i++) { datain = datain << 1; CLR_LD_CLK; if(LD_DO) datain|=0x01; __delay_cycles(200); SET_LD_CLK; __delay_cycles(200); } __delay_cycles(2000); SET_LD_CS;//关闭片选 return datain; } /***************************************** 函数功能 ；LD3320复位函数 入口参数：无 出口参数：无 ******************************************/ void LD_reset() { SET_LD_RST; __delay_cycles(200); CLR_LD_RST; __delay_cycles(200); SET_LD_RST; __delay_cycles(200); CLR_LD_CS; __delay_cycles(200); SET_LD_CS; __delay_cycles(200); } void LD_Init_Common() { LD_ReadReg(0x06); LD_WriteReg(0x17, 0x35); __delay_cycles(200); LD_ReadReg(0x06); LD_WriteReg(0x89, 0x03); __delay_cycles(200); LD_WriteReg(0xCF, 0x43); __delay_cycles(200); LD_WriteReg(0xCB, 0x02); /*PLL setting*/ LD_WriteReg(0x11, LD_PLL_11); 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); __delay_cycles(2000); LD_WriteReg(0xCD, 0x04); LD_WriteReg(0x17, 0x4c); __delay_cycles(200); LD_WriteReg(0xB9, 0x00); LD_WriteReg(0xCF, 0x4F); LD_WriteReg(0x6F, 0xFF); } void LD_Init_ASR() { nLD_Mode=LD_MODE_ASR_RUN; LD_Init_Common(); LD_WriteReg(0xBD, 0x00); LD_WriteReg(0x17, 0x48); __delay_cycles(200); 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); __delay_cycles(200); } // Return 1: success. unsigned char LD_Check_ASRBusyFlag_b2() { unsigned char j; unsigned char flag = 0; for (j=0; j<10; j++) { if (LD_ReadReg(0xb2) == 0x21) { flag = 1; break; } __delay_cycles(200); } return flag; } /************************************************************************ 功能描述： 启动ASR 入口参数： none 返 回 值： none 其他