帮我写一个STM32F103基于CAN通讯的按键点灯程序

好的，以下是一个简单的基于CAN通讯的按键点灯程序。这个程序通过CAN总线接收另一个节点发送过来的数据，如果数据为1，则点亮LED灯，如果数据为0，则熄灭LED灯。

#include "stm32f10x.h"

void GPIO_Configuration(void);
void NVIC_Configuration(void);
void CAN_Configuration(void);
void CAN_Send(uint8_t data);
void delay(uint32_t count);

int main(void)
{
    uint8_t can_data;

    GPIO_Configuration();
    NVIC_Configuration();
    CAN_Configuration();

    while (1)
    {
        if ((GPIO_ReadInputData(GPIOA) & GPIO_Pin_0) == 0) // 如果按键按下
        {
            CAN_Send(1); // 发送数据1到CAN总线
        }
        else
        {
            CAN_Send(0); // 发送数据0到CAN总线
        }

        if (CAN_GetFlagStatus(CAN1, CAN_FLAG_FMP0) != RESET) // 如果接收到数据
        {
            CAN_Receive(CAN1, CAN_FIFO0, &can_data); // 读取接收到的数据

            if (can_data == 1) // 如果接收到的数据为1
            {
                GPIO_SetBits(GPIOC, GPIO_Pin_13); // 点亮LED灯
            }
            else // 如果接收到的数据为0
            {
                GPIO_ResetBits(GPIOC, GPIO_Pin_13); // 熄灭LED灯
            }
        }

        delay(10000); // 延时一段时间
    }
}

void GPIO_Configuration(void)
{
    GPIO_InitTypeDef GPIO_InitStructure;

    RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_GPIOC, ENABLE);

    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0; // PA0为按键
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU; // 上拉输入
    GPIO_Init(GPIOA, &GPIO_InitStructure);

    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_13; // PC13为LED灯
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP; // 推挽输出
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
    GPIO_Init(GPIOC, &GPIO_InitStructure);
}

void NVIC_Configuration(void)
{
    NVIC_InitTypeDef NVIC_InitStructure;

    NVIC_PriorityGroupConfig(NVIC_PriorityGroup_1);

    NVIC_InitStructure.NVIC_IRQChannel = USB_LP_CAN1_RX0_IRQn;
    NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
    NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
    NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
    NVIC_Init(&NVIC_InitStructure);
}

void CAN_Configuration(void)
{
    GPIO_InitTypeDef GPIO_InitStructure;
    CAN_InitTypeDef CAN_InitStructure;
    CAN_FilterInitTypeDef CAN_FilterInitStructure;

    RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_AFIO, ENABLE);
    RCC_APB1PeriphClockCmd(RCC_APB1Periph_CAN1, ENABLE);

    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_11 | GPIO_Pin_12;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
    GPIO_Init(GPIOA, &GPIO_InitStructure);

    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;
    GPIO_Init(GPIOB, &GPIO_InitStructure);

    CAN_InitStructure.CAN_TTCM = DISABLE;
    CAN_InitStructure.CAN_ABOM = DISABLE;
    CAN_InitStructure.CAN_AWUM = DISABLE;
    CAN_InitStructure.CAN_NART = DISABLE;
    CAN_InitStructure.CAN_RFLM = DISABLE;
    CAN_InitStructure.CAN_TXFP = DISABLE;
    CAN_InitStructure.CAN_Mode = CAN_Mode_Normal;
    CAN_InitStructure.CAN_SJW = CAN_SJW_1tq;
    CAN_InitStructure.CAN_BS1 = CAN_BS1_5tq;
    CAN_InitStructure.CAN_BS2 = CAN_BS2_2tq;
    CAN_InitStructure.CAN_Prescaler = 4;
    CAN_Init(CAN1, &CAN_InitStructure);

    CAN_FilterInitStructure.CAN_FilterNumber = 0;
    CAN_FilterInitStructure.CAN_FilterMode = CAN_FilterMode_IdMask;
    CAN_FilterInitStructure.CAN_FilterScale = CAN_FilterScale_32bit;
    CAN_FilterInitStructure.CAN_FilterIdHigh = 0x0000;
    CAN_FilterInitStructure.CAN_FilterIdLow = 0x0000;
    CAN_FilterInitStructure.CAN_FilterMaskIdHigh = 0x0000;
    CAN_FilterInitStructure.CAN_FilterMaskIdLow = 0x0000;
    CAN_FilterInitStructure.CAN_FilterFIFOAssignment = 0;
    CAN_FilterInitStructure.CAN_FilterActivation = ENABLE;
    CAN_FilterInit(&CAN_FilterInitStructure);

    CAN_ITConfig(CAN1, CAN_IT_FMP0, ENABLE);
}

void CAN_Send(uint8_t data)
{
    CanTxMsg TxMessage;

    TxMessage.StdId = 0x11;
    TxMessage.ExtId = 0x00;
    TxMessage.IDE = CAN_ID_STD;
    TxMessage.RTR = CAN_RTR_DATA;
    TxMessage.DLC = 1;
    TxMessage.Data[0] = data;

    CAN_Transmit(CAN1, &TxMessage);
}

void delay(uint32_t count)
{
    while (count--);
}

void USB_LP_CAN1_RX0_IRQHandler(void)
{
    if (CAN_GetITStatus(CAN1, CAN_IT_FMP0) != RESET)
    {
        CAN_ClearITPendingBit(CAN1, CAN_IT_FMP0);
    }
}

注意，这个程序中使用了CAN1和GPIOA、GPIOB、GPIOC。你需要根据自己的硬件连接情况进行修改。另外，这个程序中使用了STM32F10x标准库，如果你使用的是其他库，需要做相应的修改。