给我写一段用于通过SPI读取ICM42688的代码SPI的GPIO口初始化部分不用写

下面是通过SPI读取ICM42688的代码：

// 定义ICM42688的命令
#define ICM42688_WHO_AM_I   0x75
#define ICM42688_ACCEL_XOUT_H   0x2D
#define ICM42688_ACCEL_XOUT_L   0x2E
#define ICM42688_ACCEL_YOUT_H   0x2F
#define ICM42688_ACCEL_YOUT_L   0x30
#define ICM42688_ACCEL_ZOUT_H   0x31
#define ICM42688_ACCEL_ZOUT_L   0x32

// 初始化SPI接口
// ...

// 读取ICM42688的WHO_AM_I寄存器
uint8_t who_am_i = 0;
spi_select_device(SPI_MASTER, &icm42688_spi_device);
spi_write(SPI_MASTER, ICM42688_WHO_AM_I | 0x80);
spi_read(SPI_MASTER, &who_am_i);
spi_deselect_device(SPI_MASTER, &icm42688_spi_device);

if (who_am_i == 0x99) {
    printf("ICM42688 found!\n");
} else {
    printf("ICM42688 not found!\n");
    return;
}

// 读取加速度计数据
int16_t accel_x, accel_y, accel_z;
spi_select_device(SPI_MASTER, &icm42688_spi_device);
spi_write(SPI_MASTER, ICM42688_ACCEL_XOUT_H | 0x80);
spi_read(SPI_MASTER, (uint8_t *)&accel_x, 2);
spi_read(SPI_MASTER, (uint8_t *)&accel_y, 2);
spi_read(SPI_MASTER, (uint8_t *)&accel_z, 2);
spi_deselect_device(SPI_MASTER, &icm42688_spi_device);

printf("accel_x: %d\n", accel_x);
printf("accel_y: %d\n", accel_y);
printf("accel_z: %d\n", accel_z);
``