提供一个STM32关于W25Q64的跨页写入的代码

以下是一个基于STM32的关于W25Q64的跨页写入的示例代码：

#include "stm32f4xx.h"
#include "spi.h"
#include "w25q64.h"

void W25Q64_Write_Page(uint32_t addr, uint8_t *data, uint16_t len)
{
    uint16_t page_offset = addr % W25Q64_PAGE_SIZE;
    uint16_t write_len = W25Q64_PAGE_SIZE - page_offset;
    if (write_len > len) {
        write_len = len;
    }

    W25Q64_Write_Enable();

    SPI_CS_LOW();

    SPI_Transmit(W25Q64_CMD_PAGE_PROGRAM);
    SPI_Transmit(addr >> 16);
    SPI_Transmit(addr >> 8);
    SPI_Transmit(addr);

    for (uint16_t i = 0; i < write_len; i++) {
        SPI_Transmit(data[i]);
    }

    SPI_CS_HIGH();

    len -= write_len;
    data += write_len;
    addr += write_len;

    while (len > 0) {
        write_len = W25Q64_PAGE_SIZE;

        if (write_len > len) {
            write_len = len;
        }

        W25Q64_Write_Enable();

        SPI_CS_LOW();

        SPI_Transmit(W25Q64_CMD_PAGE_PROGRAM);
        SPI_Transmit(addr >> 16);
        SPI_Transmit(addr >> 8);
        SPI_Transmit(addr);

        for (uint16_t i = 0; i < write_len; i++) {
            SPI_Transmit(data[i]);
        }

        SPI_CS_HIGH();

        len -= write_len;
        data += write_len;
        addr += write_len;
    }

    W25Q64_Write_Disable();
}

该代码首先计算出要写入的数据跨越的页数和每个页中的偏移量。然后，它使用W25Q64_Write_Enable()函数启用写入操作，使用SPI_Transmit()函数将数据写入W25Q64，使用W25Q64_Write_Disable()函数禁用写入操作。在写入操作的过程中，该代码使用SPI_CS_LOW()函数将片选信号拉低，使用SPI_CS_HIGH()函数将片选信号拉高。此外，该代码使用SPI_Transmit()函数将W25Q64的指令和地址写入SPI总线。