1 /*
2 * Copyright (c) 2006-2021, RT-Thread Development Team
3 *
4 * SPDX-License-Identifier: Apache-2.0
5 *
6 * Change Logs:
7 * Date Author Notes
8 * 2020-09-15 thread-liu first version
9 */
10
11 #include "board.h"
12
13 #if defined(BSP_USING_SPI5)
14 #include <drv_spi.h>
15
16 #define SPI_NAME "spi50"
17 static struct rt_spi_device *spi_dev = RT_NULL;
18
19 /* attach spi5 device */
rt_spi_device_init(void)20 static int rt_spi_device_init(void)
21 {
22 struct rt_spi_configuration cfg;
23
24 rt_hw_spi_device_attach("spi5", "spi50", PIN_NONE);
25
26 cfg.data_width = 8;
27 cfg.mode = RT_SPI_MASTER | RT_SPI_MODE_0 | RT_SPI_MSB | RT_SPI_NO_CS;
28 cfg.max_hz = 1 *1000 *1000;
29
30 spi_dev = (struct rt_spi_device *)rt_device_find(SPI_NAME);
31
32 if (RT_NULL == spi_dev)
33 {
34 rt_kprintf("spi sample run failed! can't find %s device!\n", SPI_NAME);
35 return -RT_ERROR;
36 }
37
38 rt_spi_configure(spi_dev, &cfg);
39
40 return RT_EOK;
41 }
42 INIT_APP_EXPORT(rt_spi_device_init);
43
44 /* spi5 loopback mode test case */
spi_sample(int argc,char ** argv)45 static int spi_sample(int argc, char **argv)
46 {
47 rt_uint8_t t_buf[8], r_buf[8];
48 int i = 0;
49 static struct rt_spi_message msg1;
50
51 if (argc != 9)
52 {
53 rt_kprintf("Usage:\n");
54 rt_kprintf("spi_sample 1 2 3 4 5 6 7 8\n");
55 return -RT_ERROR;
56 }
57
58 for (i = 0; i < 8; i++)
59 {
60 t_buf[i] = atoi(argv[i+1]);
61 }
62
63 msg1.send_buf = &t_buf;
64 msg1.recv_buf = &r_buf;
65 msg1.length = sizeof(t_buf);
66 msg1.cs_take = 1;
67 msg1.cs_release = 0;
68 msg1.next = RT_NULL;
69
70 rt_spi_transfer_message(spi_dev, &msg1);
71
72 rt_kprintf("spi rbuf : ");
73 for (i = 0; i < sizeof(t_buf); i++)
74 {
75 rt_kprintf("%x ", r_buf[i]);
76 }
77
78 rt_kprintf("\nspi loopback mode test over!\n");
79
80 return RT_EOK;
81 }
82 MSH_CMD_EXPORT(spi_sample, spi loopback test);
83
84 #endif /* BSP_USING_SPI5 */
85