stm32接收字节数组

要在STM32上接收字节数组，你可以使用串口通信或者SPI总线通信进行数据接收。下面我将为你提供这两种通信方式的简要示例代码：

1. 使用串口通信：

#include "stm32f4xx.h"

#define BUFFER_SIZE  100

uint8_t rxBuffer[BUFFER_SIZE];  // 接收缓冲区
uint32_t rxIndex = 0;           // 接收缓冲区索引

void USART2_IRQHandler(void)
{
    if (USART_GetITStatus(USART2, USART_IT_RXNE) != RESET)  // 接收中断标志位
    {
        rxBuffer[rxIndex++] = USART_ReceiveData(USART2);
        
        if (rxIndex >= BUFFER_SIZE)  // 接收缓冲区已满
        {
            // 执行接收完毕后的处理操作
            // ...
            
            rxIndex = 0;  // 重置接收缓冲区索引
        }
    }
}

int main(void)
{
    USART_InitTypeDef USART_InitStructure;
    NVIC_InitTypeDef NVIC_InitStructure;
    
    // 使能串口2时钟
    RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART2, ENABLE);
    
    // 初始化串口2的GPIO引脚
    // ...
    
    // 配置USART2参数
    USART_InitStructure.USART_BaudRate = 115200;
    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_Rx;
    
    // 应用USART2配置
    USART_Init(USART2, &USART_InitStructure);
    
    // 使能接收中断
    USART_ITConfig(USART2, USART_IT_RXNE, ENABLE);
    
    // 配置串口2的中断优先级
    NVIC_InitStructure.NVIC_IRQChannel = USART2_IRQn;
    NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
    NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
    NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
    NVIC_Init(&NVIC_InitStructure);
    
    // 使能串口2
    USART_Cmd(USART2, ENABLE);
    
    while (1)
    {
        // 主循环代码
        // ...
    }
}

2. 使用SPI总线通信：

#include "stm32f4xx.h"

#define BUFFER_SIZE  100

uint8_t rxBuffer[BUFFER_SIZE];  // 接收缓冲区
uint32_t rxIndex = 0;           // 接收缓冲区索引

void SPI2_IRQHandler(void)
{
    if (SPI_I2S_GetITStatus(SPI2, SPI_I2S_IT_RXNE) != RESET)  // 接收缓冲区非空中断标志位
    {
        rxBuffer[rxIndex++] = SPI_I2S_ReceiveData(SPI2);
        
        if (rxIndex >= BUFFER_SIZE)  // 接收缓冲区已满
        {
            // 执行接收完毕后的处理操作
            // ...
            
            rxIndex = 0;  // 重置接收缓冲区索引
        }
    }
}

int main(void)
{
    SPI_InitTypeDef SPI_InitStructure;
    NVIC_InitTypeDef NVIC_InitStructure;
    
    // 使能SPI2时钟
    RCC_APB1PeriphClockCmd(RCC_APB1Periph_SPI2, ENABLE);
    
    // 初始化SPI2的GPIO引脚
    // ...
    
    // 配置SPI2参数
    SPI_InitStructure.SPI_Direction = SPI_Direction_2Lines_FullDuplex;
    SPI_InitStructure.SPI_Mode = SPI_Mode_Slave;
    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;
    
    // 应用SPI2配置
    SPI_Init(SPI2, &SPI_InitStructure);
    
    // 使能接收中断
    SPI_I2S_ITConfig(SPI2, SPI_I2S_IT_RXNE, ENABLE);
    
    // 配置SPI2的中断优先级
    NVIC_InitStructure.NVIC_IRQChannel = SPI2_IRQn;
    NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
    NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
    NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
    NVIC_Init(&NVIC_InitStructure);
    
    // 使能SPI2
    SPI_Cmd(SPI2, ENABLE);
    
    while (1)
    {
        // 主循环代码
        // ...
    }
}

请根据你的具体需求进行修改和调整，例如，你需要配置对应的引脚、中断优先级等。这些示例代码只是提供了基本的框架，你还需要根据具体情况进行适配和完善。