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 * 2022-07-19 Rbbb666 first version
9 * 2024-03-30 xhackerustc 2nd version for FRDM-MCXN947
10 */
11
12 #include "board.h"
13
14 #include <drv_spi.h>
15
16 #define SPI_NAME "spi60"
17 #define CS_PIN (3*32+23)
18 static struct rt_spi_device *spi_dev;
19
20 /* attach spi device */
rt_spi_device_init(void)21 static int rt_spi_device_init(void)
22 {
23 struct rt_spi_configuration cfg;
24
25 rt_hw_spi_device_attach("spi6", SPI_NAME, CS_PIN);
26
27 cfg.data_width = 8;
28 cfg.mode = RT_SPI_MASTER | RT_SPI_MODE_0 | RT_SPI_MSB | RT_SPI_NO_CS;
29 cfg.max_hz = 1 *1000 *1000;
30
31 spi_dev = (struct rt_spi_device *)rt_device_find(SPI_NAME);
32
33 if (RT_NULL == spi_dev)
34 {
35 rt_kprintf("spi sample run failed! can't find %s device!\n", SPI_NAME);
36 return -RT_ERROR;
37 }
38
39 rt_spi_configure(spi_dev, &cfg);
40
41 return RT_EOK;
42 }
43 INIT_APP_EXPORT(rt_spi_device_init);
44
45 /* spi loopback mode test case */
spi_sample(int argc,char ** argv)46 static int spi_sample(int argc, char **argv)
47 {
48 rt_uint8_t t_buf[32], r_buf[32];
49 int i = 0;
50 static struct rt_spi_message msg1;
51
52 for (i = 0; i < sizeof(t_buf); i++)
53 {
54 t_buf[i] = i;
55 }
56
57 msg1.send_buf = &t_buf;
58 msg1.recv_buf = &r_buf;
59 msg1.length = sizeof(t_buf);
60 msg1.cs_take = 1;
61 msg1.cs_release = 1;
62 msg1.next = RT_NULL;
63
64 rt_spi_transfer_message(spi_dev, &msg1);
65
66 rt_kprintf("spi rbuf : ");
67 for (i = 0; i < sizeof(r_buf); i++)
68 {
69 rt_kprintf("%x ", r_buf[i]);
70 }
71
72 rt_kprintf("\nspi loopback mode test over!\n");
73
74 return RT_EOK;
75 }
76 MSH_CMD_EXPORT(spi_sample, spi loopback test);
77