1 /**
2 * Copyright (c) 2020 HiSilicon (Shanghai) Technologies CO., LIMITED.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 *
15 * Description: SYSTICK Sample Source. \n
16 *
17 * History: \n
18 * 2023-07-17, Create file. \n
19 */
20 #include "pinctrl.h"
21 #include "systick.h"
22 #include "common_def.h"
23 #include "soc_osal.h"
24 #include "app_init.h"
25
26 #define SYSTICK_DELAY_S 2
27 #define SYSTICK_DELAY_MS 1000
28 #define SYSTICK_DELAY_US 20000
29 #define SYSTICK_TASK_DURATION_MS 500
30
31 #define SYSTICK_TASK_PRIO 24
32 #define SYSTICK_TASK_STACK_SIZE 0x1000
33
systick_task(const char * arg)34 static void *systick_task(const char *arg)
35 {
36 unused(arg);
37 uint64_t count_before_get_s;
38 uint64_t count_after_get_s;
39 uint64_t count_before_get_ms;
40 uint64_t count_after_get_ms;
41 uint64_t count_before_get_us;
42 uint64_t count_after_get_us;
43
44 /* SYSTICK init. */
45 uapi_systick_init();
46
47 while (1) {
48 osal_msleep(SYSTICK_TASK_DURATION_MS);
49 osal_printk("systick delay %ds!\r\n", SYSTICK_DELAY_S);
50 count_before_get_s = uapi_systick_get_s();
51 uapi_systick_delay_s(SYSTICK_DELAY_S);
52 count_after_get_s = uapi_systick_get_s();
53 osal_printk("count_after_get_s = %llu, count_before_get_s = %llu\r\n", count_after_get_s, count_before_get_s);
54 osal_printk("count_s = %llu\r\n", count_after_get_s - count_before_get_s);
55 if (count_after_get_s > count_before_get_s) {
56 osal_printk("systick get s work normall.\r\n");
57 }
58
59 osal_printk("systick delay %dms!\r\n", SYSTICK_DELAY_MS);
60 count_before_get_ms = uapi_systick_get_ms();
61 uapi_systick_delay_ms(SYSTICK_DELAY_MS);
62 count_after_get_ms = uapi_systick_get_ms();
63 osal_printk("count_after_get_ms = %llu, count_before_get_ms = %llu\r\n", count_after_get_ms,
64 count_before_get_ms);
65 osal_printk("count_ms = %llu\r\n", count_after_get_ms - count_before_get_ms);
66 if (count_after_get_ms > count_before_get_ms) {
67 osal_printk("systick get ms work normall.\r\n");
68 }
69
70 osal_printk("systick delay %dus!\r\n", SYSTICK_DELAY_US);
71 count_before_get_us = uapi_systick_get_us();
72 uapi_systick_delay_us(SYSTICK_DELAY_US);
73 count_after_get_us = uapi_systick_get_us();
74 osal_printk("count_after_get_us = %llu, count_before_get_us = %llu\r\n", count_after_get_us,
75 count_before_get_us);
76 osal_printk("count_us = %llu\r\n", count_after_get_us - count_before_get_us);
77 if (count_after_get_us > count_before_get_us) {
78 osal_printk("systick get us work normall.\r\n");
79 }
80 }
81
82 return NULL;
83 }
84
systick_entry(void)85 static void systick_entry(void)
86 {
87 osal_task *task_handle = NULL;
88 osal_kthread_lock();
89 task_handle = osal_kthread_create((osal_kthread_handler)systick_task, 0, "SystickTask", SYSTICK_TASK_STACK_SIZE);
90 if (task_handle != NULL) {
91 osal_kthread_set_priority(task_handle, SYSTICK_TASK_PRIO);
92 osal_kfree(task_handle);
93 }
94 osal_kthread_unlock();
95 }
96
97 /* Run the systick_entry. */
98 app_run(systick_entry);