如何在运行主程序的同时在STM32f103xx上正确实现UART1中断？

#include "stm32f10x.h"

void USART1_IRQHandler(void)
{
    if (USART_GetITStatus(USART1, USART_IT_RXNE) != RESET)
    {
        // 接收中断处理
        uint8_t data = USART_ReceiveData(USART1);
        // 处理接收到的数据
    }
}

int main(void)
{
    // 初始化相关引脚和时钟

    // 初始化UART1
    USART_InitTypeDef USART_InitStruct;
    USART_InitStruct.USART_BaudRate = 9600;
    USART_InitStruct.USART_WordLength = USART_WordLength_8b;
    USART_InitStruct.USART_StopBits = USART_StopBits_1;
    USART_InitStruct.USART_Parity = USART_Parity_No;
    USART_InitStruct.USART_Mode = USART_Mode_Rx;
    USART_InitStruct.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
    USART_Init(USART1, &USART_InitStruct);

    // 配置UART1中断
    NVIC_InitTypeDef NVIC_InitStruct;
    NVIC_InitStruct.NVIC_IRQChannel = USART1_IRQn;
    NVIC_InitStruct.NVIC_IRQChannelPreemptionPriority = 0;
    NVIC_InitStruct.NVIC_IRQChannelSubPriority = 0;
    NVIC_InitStruct.NVIC_IRQChannelCmd = ENABLE;
    NVIC_Init(&NVIC_InitStruct);

    // 启用UART1接收中断
    USART_ITConfig(USART1, USART_IT_RXNE, ENABLE);

    // 启用全局中断
    __enable_irq();

    while (1)
    {
        // 主程序逻辑
    }
}