1 /*
2 * Copyright (c) 2006-2023, RT-Thread Development Team
3 *
4 * SPDX-License-Identifier: Apache-2.0
5 *
6 * Change Logs:
7 * Date Author Notes
8 * 2023-05-01 flyingcys first version
9 */
10
11 #include <rtthread.h>
12 #include <rtdevice.h>
13
14 #ifdef BSP_USING_SPI
15
16 #define BUS_NAME "spi0"
17 #define SPI_NAME "spi00"
18
19 static struct rt_spi_device *spi_dev = RT_NULL;
20
21 /* attach spi5 device */
rt_spi_device_init(void)22 static int rt_spi_device_init(void)
23 {
24 struct rt_spi_configuration cfg;
25
26 rt_hw_spi_device_attach(BUS_NAME, SPI_NAME, RT_NULL);
27
28 cfg.data_width = 8;
29 cfg.mode = RT_SPI_MASTER | RT_SPI_MODE_0 | RT_SPI_MSB | RT_SPI_NO_CS;
30 cfg.max_hz = 10 *1000 *1000;
31
32 spi_dev = (struct rt_spi_device *)rt_device_find(SPI_NAME);
33
34 if (RT_NULL == spi_dev)
35 {
36 rt_kprintf("spi sample run failed! can't find %s device!\n", SPI_NAME);
37 return -RT_ERROR;
38 }
39
40 rt_spi_configure(spi_dev, &cfg);
41
42 return RT_EOK;
43 }
44 INIT_APP_EXPORT(rt_spi_device_init);
45
46 /* spi loopback mode test case */
spi_sample(int argc,char ** argv)47 static int spi_sample(int argc, char **argv)
48 {
49 rt_uint8_t t_buf[8], r_buf[8];
50 int i = 0;
51 static struct rt_spi_message msg1;
52
53 if (argc != 9)
54 {
55 rt_kprintf("Please Usage:\n");
56 rt_kprintf("spi_sample 1 2 3 4 5 6 7 8\n");
57 return -RT_ERROR;
58 }
59
60 for (i = 0; i < 8; i++)
61 {
62 t_buf[i] = atoi(argv[i+1]);
63 }
64
65 msg1.send_buf = &t_buf;
66 msg1.recv_buf = &r_buf;
67 msg1.length = sizeof(t_buf);
68 msg1.cs_take = 1;
69 msg1.cs_release = 0;
70 msg1.next = RT_NULL;
71
72 rt_spi_transfer_message(spi_dev, &msg1);
73
74 rt_kprintf("spi rbuf : ");
75 for (i = 0; i < sizeof(t_buf); i++)
76 {
77 rt_kprintf("%x ", r_buf[i]);
78 }
79
80 rt_kprintf("\nspi loopback mode test over!\n");
81
82 return RT_EOK;
83 }
84 MSH_CMD_EXPORT(spi_sample, spi loopback test);
85
86 #endif /* BSP_USING_SPI */
87