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static void test_spi(void)
{
	#define TEST_SPI_NAME	"spi10"
	struct rt_spi_device *spi_dev_test = RT_NULL;
	struct rt_spi_message msg1;
	struct rt_spi_configuration cfg;
	//rt_uint8_t msg = 0x0a;
	spi_dev_test = (struct rt_spi_device *)rt_device_find(TEST_SPI_NAME);
	if(spi_dev_test == RT_NULL)
	{
		rt_kprintf("test spi error\n");
		return;
	}

	cfg.data_width = 8;
	cfg.mode = RT_SPI_MODE_0 | RT_SPI_MSB; /* SPI Compatible Modes 0 and 3 */
	cfg.max_hz = 500000; /* Atmel RapidS Serial Interface: 66MHz Maximum Clock Frequency */
	rt_spi_configure(spi_dev_test, &cfg);

	msg1.send_buf   = "lmnb66";
	msg1.recv_buf   = RT_NULL;
	msg1.length     = 6;
	msg1.cs_take    = 1;
	msg1.cs_release = 1;
	msg1.next       = RT_NULL;
	rt_kprintf("test spi\n");
	rt_spi_transfer_message(spi_dev_test, &msg1);
}