1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
|
/*
* Copyright (c) 2022-2026, Xiaohua Semiconductor Co., Ltd.
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2026-06-24 CDT first version
*/
/**
* menuconfig:
* Hardware Drivers Config ---> On-Chip Peripheral Driver---> [*] Enable PM
* RT-Thread Kernel ---> (1024) The stack size of idle thread
*/
#include <stdlib.h>
#include "board.h"
#include "drv_wktm.h"
#if defined(BSP_USING_PM)
#if defined(HC32F4A0) || defined(HC32F4A2) || defined(HC32F4A8) || defined(HC32F467)
#define WKTM_IRQn (INT131_IRQn)
#elif defined(HC32F460)
#define WKTM_IRQn (INT130_IRQn)
#endif
static volatile rt_uint32_t last_tick;
#if defined(HC32F334) || defined(HC32F448) || defined(HC32F472)
void PWC_WKTM_Handler(void)
#elif defined(HC32F4A0) || defined(HC32F4A2) || defined(HC32F4A8) || defined(HC32F467) || defined(HC32F460)
void PWC_WakeupTimer_IrqHandler(void)
#endif
{
static rt_uint32_t delta_tick;
rt_interrupt_enter();
delta_tick = rt_tick_get() - last_tick;
last_tick = rt_tick_get();
/* 打印出的tick值由于printf原因可能有误差 */
rt_kprintf("Wakeup-timer irq interval ticks: approximate %d.\r\n", delta_tick);
rt_interrupt_leave();
#if defined(HC32F334) || defined(HC32F448) || defined(HC32F472)
__DSB(); /* Arm Errata 838869: Cortex-M4, Cortex-M4F */
#endif
}
void wktm_sample(int argc, char **argv)
{
rt_base_t level;
rt_uint32_t cmp_value;
rt_uint32_t cmp_max = hc32_wktm_get_tick_max();
if (argc >= 2)
{
cmp_value = atol(argv[1]);
if (0UL == cmp_value)
{
/*********************** Stop wakeup-timer ************************/
hc32_wktm_stop();
NVIC_DisableIRQ(WKTM_IRQn);
NVIC_ClearPendingIRQ(WKTM_IRQn);
rt_kprintf("Stop Wakeup-timer\n\n");
}
else if (cmp_value > cmp_max)
{
/*********************** Hold the wakeup timer configuration ******/
rt_kprintf("compare value %d is out of %d(max), so hold the wakeup timer configuration \n\n", cmp_value, cmp_max);
}
else if (cmp_value < (cmp_max / 2))
{
/*********************** Hold the wakeup timer configuration ******/
rt_kprintf("compare value %d is less of %d(max/2), so hold the wakeup timer configuration: ", cmp_value, cmp_max / 2);
rt_kprintf("to avoid frequent interruptions: too much printed information affcets console commands \n\n");
}
else
{
/*********************** Start wakeup-timer ***********************/
/* Wakeup timer NVIC config */
#if defined(HC32F4A0) || defined(HC32F4A2) || defined(HC32F4A8) || defined(HC32F467) || defined(HC32F460)
(void)INTC_ShareIrqCmd(INT_SRC_WKTM_PRD, ENABLE);
#endif
NVIC_ClearPendingIRQ(WKTM_IRQn);
NVIC_SetPriority(WKTM_IRQn, DDL_IRQ_PRIO_DEFAULT);
NVIC_EnableIRQ(WKTM_IRQn);
if (RT_EOK == hc32_wktm_start(cmp_value))
{
level = rt_hw_interrupt_disable();
last_tick = rt_tick_get();
rt_hw_interrupt_enable(level);
rt_kprintf("Update wakeup-timer compare value = %d, and start timer \n\n", cmp_value);
}
else
{
rt_kprintf("Fail to set wakeup-timer compare value \n\n", cmp_value);
}
}
}
else
{
rt_kprintf("wktm_sample 0: stop wakeup-timer \n");
rt_kprintf("wktm_sample %d~%d: set wakeup-timer compare value and start timer \n\n", cmp_max / 2, cmp_max);
}
}
MSH_CMD_EXPORT(wktm_sample, wktm_sample compare_value);
#endif
|
