上面的代码用标准库写55

好的，以下是使用STM32标准库的LD3320语音识别代码实现：

#include "stm32f10x.h"
#include "stm32f10x_spi.h"
#include "stm32f10x_usart.h"
#include "stm32f10x_gpio.h"

SPI_InitTypeDef SPI_InitStructure;
GPIO_InitTypeDef GPIO_InitStructure;
USART_InitTypeDef USART_InitStructure;

void LD3320_GPIO_Init(void)
{
    RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_GPIOB, ENABLE);

    // LD3320 SPI
    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_5 | GPIO_Pin_6 | GPIO_Pin_7;
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
    GPIO_Init(GPIOA, &GPIO_InitStructure);

    // LD3320 CS
    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_4;
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
    GPIO_Init(GPIOA, &GPIO_InitStructure);

    // LD3320 INT
    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_12;
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;
    GPIO_Init(GPIOB, &GPIO_InitStructure);

    // USART1 TX
    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
    GPIO_Init(GPIOA, &GPIO_InitStructure);

    // USART1 RX
    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
    GPIO_Init(GPIOA, &GPIO_InitStructure);
}

void LD3320_SPI_Init(void)
{
    RCC_APB2PeriphClockCmd(RCC_APB2Periph_SPI1, ENABLE);

    SPI_InitStructure.SPI_Direction = SPI_Direction_2Lines_FullDuplex;
    SPI_InitStructure.SPI_Mode = SPI_Mode_Master;
    SPI_InitStructure.SPI_DataSize = SPI_DataSize_8b;
    SPI_InitStructure.SPI_CPOL = SPI_CPOL_Low;
    SPI_InitStructure.SPI_CPHA = SPI_CPHA_1Edge;
    SPI_InitStructure.SPI_NSS = SPI_NSS_Soft;
    SPI_InitStructure.SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_256;
    SPI_InitStructure.SPI_FirstBit = SPI_FirstBit_MSB;
    SPI_InitStructure.SPI_CRCPolynomial = 7;
    SPI_Init(SPI1, &SPI_InitStructure);
    SPI_Cmd(SPI1, ENABLE);
}

void LD3320_USART_Init(void)
{
    RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1, ENABLE);

    USART_InitStructure.USART_BaudRate = 9600;
    USART_InitStructure.USART_WordLength = USART_WordLength_8b;
    USART_InitStructure.USART_StopBits = USART_StopBits_1;
    USART_InitStructure.USART_Parity = USART_Parity_No;
    USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
    USART_InitStructure.USART_Mode = USART_Mode_Tx | USART_Mode_Rx;
    USART_Init(USART1, &USART_InitStructure);
    USART_Cmd(USART1, ENABLE);
}

uint8_t LD3320_SendByte(uint8_t data)
{
    while (SPI_I2S_GetFlagStatus(SPI1, SPI_I2S_FLAG_TXE) == RESET);
    SPI_I2S_SendData(SPI1, data);
    while (SPI_I2S_GetFlagStatus(SPI1, SPI_I2S_FLAG_RXNE) == RESET);
    return SPI_I2S_ReceiveData(SPI1);
}

void LD3320_SendCmd(uint8_t cmd)
{
    GPIO_ResetBits(GPIOA, GPIO_Pin_4);
    LD3320_SendByte(cmd);
    GPIO_SetBits(GPIOA, GPIO_Pin_4);
}

uint8_t LD3320_RecData(void)
{
    while (USART_GetFlagStatus(USART1, USART_FLAG_RXNE) == RESET);
    return USART_ReceiveData(USART1);
}

void LD3320_Init(void)
{
    GPIO_SetBits(GPIOA, GPIO_Pin_4);
    GPIO_ResetBits(GPIOA, GPIO_Pin_4);
    GPIO_SetBits(GPIOA, GPIO_Pin_4);
    GPIO_ResetBits(GPIOA, GPIO_Pin_4);
    uint8_t cmd[] = {0x00, 0x02, 0x01, 0x00, 0x00, 0x05, 0x39};
    for(int i = 0; i < 7; i++)
    {
        LD3320_SendCmd(cmd[i]);
    }
}

int main(void)
{
    LD3320_GPIO_Init();
    LD3320_SPI_Init();
    LD3320_USART_Init();
    LD3320_Init();
    while (1)
    {
        if(GPIO_ReadInputDataBit(GPIOB, GPIO_Pin_12) == RESET)
        {
            uint8_t data = LD3320_RecData();
            if(data == 0x80)
            {
                uint8_t length = LD3320_RecData();
                for(int i = 0; i < length; i++)
                {
                    uint8_t result = LD3320_RecData();
                    while (USART_GetFlagStatus(USART1, USART_FLAG_TXE) == RESET);
                    USART_SendData(USART1, result);
                }
            }
        }
    }
}

需要注意，此代码仅为示例代码，具体实现还需要根据具体的硬件连接和应用场景进行修改。