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: PWM Sample Source. \n
16 *
17 * History: \n
18 * 2023-06-27, Create file. \n
19 */
20 #include "pinctrl.h"
21 #include "pwm.h"
22 #include "tcxo.h"
23 #include "soc_osal.h"
24 #include "app_init.h"
25
26 #define TEST_TCXO_DELAY_1000MS 1000
27
28 #define PWM_TASK_PRIO 24
29 #define PWM_TASK_STACK_SIZE 0x1000
30
pwm_sample_callback(uint8_t channel)31 static errcode_t pwm_sample_callback(uint8_t channel)
32 {
33 osal_printk("PWM %d, cycle done. \r\n", channel);
34 return ERRCODE_SUCC;
35 }
36
pwm_task(const char * arg)37 static void *pwm_task(const char *arg)
38 {
39 UNUSED(arg);
40 pwm_config_t cfg_no_repeat = {
41 100,
42 100,
43 0,
44 0xFF,
45 false
46 };
47
48 uapi_pin_set_mode(CONFIG_PWM_PIN, CONFIG_PWM_PIN_MODE);
49 uapi_pwm_deinit();
50 uapi_pwm_init();
51 uapi_pwm_open(CONFIG_PWM_CHANNEL, &cfg_no_repeat);
52
53 uapi_tcxo_delay_ms((uint32_t)TEST_TCXO_DELAY_1000MS);
54 uapi_pwm_unregister_interrupt(CONFIG_PWM_CHANNEL);
55 uapi_pwm_register_interrupt(CONFIG_PWM_CHANNEL, pwm_sample_callback);
56 #ifdef CONFIG_PWM_USING_V151
57 uint8_t channel_id = CONFIG_PWM_CHANNEL;
58 /* channel_id can also choose to configure multiple channels, and the third parameter also needs to be adjusted
59 accordingly. */
60 uapi_pwm_set_group(CONFIG_PWM_GROUP_ID, &channel_id, 1);
61 /* Here you can also call the uapi_pwm_start interface to open each channel individually. */
62 uapi_pwm_start_group(CONFIG_PWM_GROUP_ID);
63 #else
64 uapi_pwm_start(CONFIG_PWM_CHANNEL);
65 #endif
66
67 uapi_tcxo_delay_ms((uint32_t)TEST_TCXO_DELAY_1000MS);
68 #ifdef CONFIG_PWM_USING_V151
69 uapi_pwm_close(CONFIG_PWM_GROUP_ID);
70 #else
71 uapi_pwm_close(CONFIG_PWM_CHANNEL);
72 #endif
73
74 uapi_tcxo_delay_ms((uint32_t)TEST_TCXO_DELAY_1000MS);
75 uapi_pwm_deinit();
76 return NULL;
77 }
78
pwm_entry(void)79 static void pwm_entry(void)
80 {
81 osal_task *task_handle = NULL;
82 osal_kthread_lock();
83 task_handle = osal_kthread_create((osal_kthread_handler)pwm_task, 0, "PwmTask", PWM_TASK_STACK_SIZE);
84 if (task_handle != NULL) {
85 osal_kthread_set_priority(task_handle, PWM_TASK_PRIO);
86 }
87 osal_kthread_unlock();
88 }
89
90 /* Run the pwm_entry. */
91 app_run(pwm_entry);