STM32F103RCT6使用HAL库驱动W5500

要使用STM32F103RCT6驱动W5500，你需要使用W5500的数据手册，了解其寄存器映射和通信协议。然后，使用HAL库的SPI接口，通过SPI总线与W5500进行通信。

下面是一个简单的示例代码，使用HAL库的SPI接口驱动W5500：

#include "stm32f1xx_hal.h"

#define W5500_SPI hspi1

#define W5500_CS_GPIO_Port GPIOA
#define W5500_CS_Pin GPIO_PIN_4

void W5500_WriteReg(uint16_t addr, uint8_t val)
{
    uint8_t txData[3] = {0xF0, (uint8_t)(addr >> 8), (uint8_t)addr};
    HAL_GPIO_WritePin(W5500_CS_GPIO_Port, W5500_CS_Pin, GPIO_PIN_RESET);
    HAL_SPI_Transmit(&W5500_SPI, txData, 3, HAL_MAX_DELAY);
    HAL_SPI_Transmit(&W5500_SPI, &val, 1, HAL_MAX_DELAY);
    HAL_GPIO_WritePin(W5500_CS_GPIO_Port, W5500_CS_Pin, GPIO_PIN_SET);
}

uint8_t W5500_ReadReg(uint16_t addr)
{
    uint8_t txData[3] = {0x0F, (uint8_t)(addr >> 8), (uint8_t)addr};
    uint8_t rxData;
    HAL_GPIO_WritePin(W5500_CS_GPIO_Port, W5500_CS_Pin, GPIO_PIN_RESET);
    HAL_SPI_Transmit(&W5500_SPI, txData, 3, HAL_MAX_DELAY);
    HAL_SPI_Receive(&W5500_SPI, &rxData, 1, HAL_MAX_DELAY);
    HAL_GPIO_WritePin(W5500_CS_GPIO_Port, W5500_CS_Pin, GPIO_PIN_SET);
    return rxData;
}

int main(void)
{
    HAL_Init();

    // 初始化SPI
    __HAL_RCC_GPIOA_CLK_ENABLE();
    __HAL_RCC_SPI1_CLK_ENABLE();
    GPIO_InitTypeDef GPIO_InitStruct = {0};
    GPIO_InitStruct.Pin = GPIO_PIN_5 | GPIO_PIN_7;
    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
    GPIO_InitStruct.Pull = GPIO_NOPULL;
    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
    HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
    GPIO_InitStruct.Pin = GPIO_PIN_6;
    GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
    HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
    SPI_HandleTypeDef hspi1;
    hspi1.Instance = SPI1;
    hspi1.Init.Mode = SPI_MODE_MASTER;
    hspi1.Init.Direction = SPI_DIRECTION_2LINES;
    hspi1.Init.DataSize = SPI_DATASIZE_8BIT;
    hspi1.Init.CLKPolarity = SPI_POLARITY_LOW;
    hspi1.Init.CLKPhase = SPI_PHASE_1EDGE;
    hspi1.Init.NSS = SPI_NSS_SOFT;
    hspi1.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_2;
    hspi1.Init.FirstBit = SPI_FIRSTBIT_MSB;
    hspi1.Init.TIMode = SPI_TIMODE_DISABLE;
    hspi1.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLE;
    hspi1.Init.CRCPolynomial = 10;
    HAL_SPI_Init(&hspi1);

    // 初始化W5500
    __HAL_RCC_GPIOA_CLK_ENABLE();
    GPIO_InitStruct.Pin = W5500_CS_Pin;
    GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
    GPIO_InitStruct.Pull = GPIO_NOPULL;
    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
    HAL_GPIO_Init(W5500_CS_GPIO_Port, &GPIO_InitStruct);
    HAL_GPIO_WritePin(W5500_CS_GPIO_Port, W5500_CS_Pin, GPIO_PIN_SET);
    W5500_WriteReg(0x0004, 0x01);  // 初始化W5500

    while (1)
    {
        // 读取W5500的状态寄存器
        uint8_t status = W5500_ReadReg(0x0008);
        // TODO: 处理状态寄存器的值
    }
}

在这个示例代码中，我们定义了`W5500_SPI`为使用的SPI总线，`W5500_CS_GPIO_Port`和`W5500_CS_Pin`为W5500的CS引脚所连接的GPIO端口和引脚号。然后我们定义了`W5500_WriteReg`和`W5500_ReadReg`两个函数，分别用于向W5500的寄存器中写入数据和读取数据。在`main`函数中，我们初始化了SPI总线和W5500，并在一个循环中读取W5500的状态寄存器。

你可以根据自己的需要修改这个示例代码，实现自己的功能。