blob: 92dc4a6c0ce9282c2b7b49e487f6ec8718500905 (
plain)
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
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
|
/*********************COPYRIGHT(C) 2019 WCH. A11 rights reserved***********************
* File Name : ch32f10x_rtc.c
* Author : WCH
* Version : V1.0.0
* Date : 2019/10/15
* Description : This file provides all the RTC firmware functions.
***************************************************************************************/
#include "ch32f10x_rtc.h"
/* RTC_Private_Defines */
#define RTC_LSB_MASK ((uint32_t)0x0000FFFF) /*!< RTC LSB Mask */
#define PRLH_MSB_MASK ((uint32_t)0x000F0000) /*!< RTC Prescaler MSB Mask */
/********************************************************************************
* Function Name : RTC_ITConfig
* Description : Enables or disables the specified RTC interrupts.
* Input : RTC_IT: specifies the RTC interrupts sources to be enabled or disabled.
* RTC_IT_OW: Overflow interrupt
* RTC_IT_ALR: Alarm interrupt
* RTC_IT_SEC: Second interrupt
* Return : NewState: new state of the specified RTC interrupts(ENABLE or DISABLE).
*********************************************************************************/
void RTC_ITConfig(uint16_t RTC_IT, FunctionalState NewState)
{
if (NewState != DISABLE)
{
RTC->CTLRH |= RTC_IT;
}
else
{
RTC->CTLRH &= (uint16_t)~RTC_IT;
}
}
/********************************************************************************
* Function Name : RTC_EnterConfigMode
* Description : Enters the RTC configuration mode.
* Input : None
* Return : None
*********************************************************************************/
void RTC_EnterConfigMode(void)
{
RTC->CTLRL |= RTC_CTLRL_CNF;
}
/********************************************************************************
* Function Name : RTC_ExitConfigMode
* Description : Exits from the RTC configuration mode.
* Input : None
* Return : None
*********************************************************************************/
void RTC_ExitConfigMode(void)
{
RTC->CTLRL &= (uint16_t)~((uint16_t)RTC_CTLRL_CNF);
}
/********************************************************************************
* Function Name : RTC_GetCounter
* Description : Gets the RTC counter value
* Input : None
* Return : RTC counter value
*********************************************************************************/
uint32_t RTC_GetCounter(void)
{
uint16_t tmp = 0;
tmp = RTC->CNTL;
return (((uint32_t)RTC->CNTH << 16 ) | tmp) ;
}
/********************************************************************************
* Function Name : RTC_SetCounter
* Description : Sets the RTC counter value.
* Input : CounterValue: RTC counter new value.
* Return : None
*********************************************************************************/
void RTC_SetCounter(uint32_t CounterValue)
{
RTC_EnterConfigMode();
RTC->CNTH = CounterValue >> 16;
RTC->CNTL = (CounterValue & RTC_LSB_MASK);
RTC_ExitConfigMode();
}
/********************************************************************************
* Function Name : RTC_SetPrescaler
* Description : Sets the RTC prescaler value
* Input : PrescalerValue: RTC prescaler new value
* Return : None
*********************************************************************************/
void RTC_SetPrescaler(uint32_t PrescalerValue)
{
RTC_EnterConfigMode();
RTC->PSCRH = (PrescalerValue & PRLH_MSB_MASK) >> 16;
RTC->PSCRL = (PrescalerValue & RTC_LSB_MASK);
RTC_ExitConfigMode();
}
/********************************************************************************
* Function Name : RTC_SetAlarm
* Description : Sets the RTC alarm value
* Input : AlarmValue: RTC alarm new value
* Return : None
*********************************************************************************/
void RTC_SetAlarm(uint32_t AlarmValue)
{
RTC_EnterConfigMode();
RTC->ALRMH = AlarmValue >> 16;
RTC->ALRML = (AlarmValue & RTC_LSB_MASK);
RTC_ExitConfigMode();
}
/********************************************************************************
* Function Name : RTC_GetDivider
* Description : Gets the RTC divider value
* Input : None
* Return : RTC Divider value
*********************************************************************************/
uint32_t RTC_GetDivider(void)
{
uint32_t tmp = 0x00;
tmp = ((uint32_t)RTC->DIVH & (uint32_t)0x000F) << 16;
tmp |= RTC->DIVL;
return tmp;
}
/********************************************************************************
* Function Name : RTC_WaitForLastTask
* Description : Waits until last write operation on RTC registers has finished
* Input : None
* Return : None
*********************************************************************************/
void RTC_WaitForLastTask(void)
{
while ((RTC->CTLRL & RTC_FLAG_RTOFF) == (uint16_t)RESET)
{
}
}
/********************************************************************************
* Function Name : RTC_WaitForSynchro
* Description : Waits until the RTC registers (RTC_CNT, RTC_ALR and RTC_PRL)
* are synchronized with RTC APB clock
* Input : None
* Return : None
*********************************************************************************/
void RTC_WaitForSynchro(void)
{
RTC->CTLRL &= (uint16_t)~RTC_FLAG_RSF;
while ((RTC->CTLRL & RTC_FLAG_RSF) == (uint16_t)RESET)
{
}
}
/********************************************************************************
* Function Name : RTC_GetFlagStatus
* Description : Checks whether the specified RTC flag is set or not
* Input : RTC_FLAG: specifies the flag to check
* RTC_FLAG_RTOFF: RTC Operation OFF flag
* RTC_FLAG_RSF: Registers Synchronized flag
* RTC_FLAG_OW: Overflow flag
* RTC_FLAG_ALR: Alarm flag
* RTC_FLAG_SEC: Second flag
* Return : The new state of RTC_FLAG (SET or RESET)
*********************************************************************************/
FlagStatus RTC_GetFlagStatus(uint16_t RTC_FLAG)
{
FlagStatus bitstatus = RESET;
if ((RTC->CTLRL & RTC_FLAG) != (uint16_t)RESET)
{
bitstatus = SET;
}
else
{
bitstatus = RESET;
}
return bitstatus;
}
/********************************************************************************
* Function Name : RTC_ClearFlag
* Description : Clears the RTC's pending flags
* Input : RTC_FLAG: specifies the flag to clear
* RTC_FLAG_RSF: Registers Synchronized flag
* RTC_FLAG_OW: Overflow flag
* RTC_FLAG_ALR: Alarm flag
* RTC_FLAG_SEC: Second flag
* Return : None
*********************************************************************************/
void RTC_ClearFlag(uint16_t RTC_FLAG)
{
RTC->CTLRL &= (uint16_t)~RTC_FLAG;
}
/********************************************************************************
* Function Name : RTC_GetITStatus
* Description : Checks whether the specified RTC interrupt has occurred or not
* Input : RTC_IT: specifies the RTC interrupts sources to check
* RTC_FLAG_OW: Overflow interrupt
* RTC_FLAG_ALR: Alarm interrupt
* RTC_FLAG_SEC: Second interrupt
* Return : The new state of the RTC_IT (SET or RESET)
*********************************************************************************/
ITStatus RTC_GetITStatus(uint16_t RTC_IT)
{
ITStatus bitstatus = RESET;
bitstatus = (ITStatus)(RTC->CTLRL & RTC_IT);
if (((RTC->CTLRH & RTC_IT) != (uint16_t)RESET) && (bitstatus != (uint16_t)RESET))
{
bitstatus = SET;
}
else
{
bitstatus = RESET;
}
return bitstatus;
}
/********************************************************************************
* Function Name : RTC_ClearITPendingBit
* Description : Clears the RTC's interrupt pending bits
* Input : RTC_IT: specifies the interrupt pending bit to clear
* RTC_FLAG_OW: Overflow interrupt
* RTC_FLAG_ALR: Alarm interrupt
* RTC_FLAG_SEC: Second interrupt
* Return : None
*********************************************************************************/
void RTC_ClearITPendingBit(uint16_t RTC_IT)
{
RTC->CTLRL &= (uint16_t)~RTC_IT;
}
|
