stm32f103驱动ld3320语音识别模块代码

以下是基于STM32F103驱动LD3320语音识别模块的代码示例：

#include "stm32f10x.h"
#include "usart.h"
#include "delay.h"

#define LD3320_SCK_H() GPIO_SetBits(GPIOB,GPIO_Pin_15) //CLK高电平
#define LD3320_SCK_L() GPIO_ResetBits(GPIOB,GPIO_Pin_15) //CLK低电平
#define LD3320_SDA_H() GPIO_SetBits(GPIOB,GPIO_Pin_14) //DAT高电平
#define LD3320_SDA_L() GPIO_ResetBits(GPIOB,GPIO_Pin_14) //DAT低电平

void LD3320_Delay_us(u32 nus) //us级延时
{
    u32 i;
    for(i=0;i<nus;i++);
}

void LD3320_GPIO_Configuration(void) //LD3320口初始化
{
    GPIO_InitTypeDef GPIO_InitStructure;
    RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);

    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_14 | GPIO_Pin_15;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
    GPIO_Init(GPIOB, &GPIO_InitStructure);
}

void LD3320_Reset(void) //LD3320复位
{
    LD3320_SDA_H();
    LD3320_Delay_us(1);
    LD3320_SCK_L();
    LD3320_Delay_us(1);
    LD3320_SCK_H();
    LD3320_Delay_us(1);
    LD3320_SDA_L();
    LD3320_Delay_us(1);
    LD3320_SCK_L();
    LD3320_Delay_us(1);
    LD3320_SCK_H();
    LD3320_Delay_us(1);
    LD3320_SCK_L();
    LD3320_Delay_us(1);
    LD3320_SDA_H();
    LD3320_Delay_us(1);
    LD3320_SCK_L();
    LD3320_Delay_us(1);
    LD3320_SCK_H();
    LD3320_Delay_us(1);
    LD3320_SCK_L();
    LD3320_Delay_us(1);
}

void LD3320_Write(u8 reg,u8 data) //向LD3320写数据
{
    u8 i;

    LD3320_SCK_L();
    LD3320_SDA_H();
    LD3320_Delay_us(1);
    LD3320_SCK_H();
    LD3320_Delay_us(1);
    LD3320_SDA_L();
    LD3320_Delay_us(1);

    for(i=0;i<8;i++)
    {
        if(reg&0x80)
        {
            LD3320_SDA_H();
        }
        else
        {
            LD3320_SDA_L();
        }
        reg<<=1;
        LD3320_Delay_us(1);
        LD3320_SCK_L();
        LD3320_Delay_us(1);
        LD3320_SCK_H();
        LD3320_Delay_us(1);
    }

    for(i=0;i<8;i++)
    {
        if(data&0x80)
        {
            LD3320_SDA_H();
        }
        else
        {
            LD3320_SDA_L();
        }
        data<<=1;
        LD3320_Delay_us(1);
        LD3320_SCK_L();
        LD3320_Delay_us(1);
        LD3320_SCK_H();
        LD3320_Delay_us(1);
    }

    LD3320_SCK_L();
    LD3320_Delay_us(1);
    LD3320_SDA_H();
    LD3320_Delay_us(1);
}

u8 LD3320_Read(u8 reg) //从LD3320读数据
{
    u8 i,data=0;

    LD3320_SCK_L();
    LD3320_SDA_H();
    LD3320_Delay_us(1);
    LD3320_SCK_H();
    LD3320_Delay_us(1);
    LD3320_SDA_L();
    LD3320_Delay_us(1);

    for(i=0;i<8;i++)
    {
        if(reg&0x80)
        {
            LD3320_SDA_H();
        }
        else
        {
            LD3320_SDA_L();
        }
        reg<<=1;
        LD3320_Delay_us(1);
        LD3320_SCK_L();
        LD3320_Delay_us(1);
        LD3320_SCK_H();
        LD3320_Delay_us(1);
    }

    LD3320_SDA_H();
    LD3320_Delay_us(1);

    for(i=0;i<8;i++)
    {
        LD3320_SCK_L();
        LD3320_Delay_us(1);
        data<<=1;
        if(GPIO_ReadInputDataBit(GPIOB,GPIO_Pin_14))
        {
            data|=0x01;
        }
        LD3320_SCK_H();
        LD3320_Delay_us(1);
    }

    LD3320_SCK_L();
    LD3320_Delay_us(1);
    LD3320_SDA_H();
    LD3320_Delay_us(1);

    return data;
}

void LD3320_Init(void) //LD3320初始化
{
    LD3320_GPIO_Configuration();
    LD3320_Reset();
    LD3320_Write(0x06,0x00);
    LD3320_Write(0x00,0x3f);
}

void LD3320_Start(void) //LD3320开始识别
{
    LD3320_Write(0x04,0x01);
}

void LD3320_Stop(void) //LD3320停止识别
{
    LD3320_Write(0x04,0x00);
}

int main(void) //主函数
{
    USART1_Configuration();
    Delay_Init();
    LD3320_Init();

    while(1)
    {
        LD3320_Start();
        while(GPIO_ReadInputDataBit(GPIOB,GPIO_Pin_14)); //等待语音识别完成
        USART1_Send_String("Voice Recognized!\r\n");
        LD3320_Stop();
        Delay_ms(500);
    }
}

需要注意的是，此代码仅供参考，具体实现还需要根据自己的实际情况进行调整。