固件库中已经定义好了2个结构体,使用起来非常方便:- RTC_DateTypeDef RTC_DateStructure;" O. p% Q; c. v& s
- RTC_TimeTypeDef RTC_TimeStructure;
复制代码 在STM32F30X_RTC.H文件中已定义:7 k7 Z$ N) z' c; [/ J
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- /** - Y O! d# O& Q0 T: t+ T: I
- * @brief RTC Date structure definition 5 }+ @! L% W! S- Q4 `
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- typedef struct
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2 q8 ]# F# ~- |- ` i - uint8_t RTC_WeekDay; /*!< Specifies the RTC Date WeekDay.
; u; B, y& a: ]% x" L - This parameter can be a value of @ref RTC_WeekDay_Definitions */
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- uint8_t RTC_Month; /*!< Specifies the RTC Date Month (in BCD format).! I8 o2 z, V+ M O& |
- This parameter can be a value of @ref RTC_Month_Date_Definitions */) t+ v F5 Z9 @- r7 d8 V* Q
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- uint8_t RTC_Date; /*!< Specifies the RTC Date.
7 t! i: o Y4 a; s) S5 S. L - This parameter must be set to a value in the 1-31 range. */$ {8 I4 Y2 f, r/ C2 z0 T1 W4 Y
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- uint8_t RTC_Year; /*!< Specifies the RTC Date Year.
0 f2 N7 j# a2 D9 b/ s6 b" j - This parameter must be set to a value in the 0-99 range. */
9 f o9 a3 T8 s E7 n! n - }RTC_DateTypeDef;
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复制代码- typedef struct3 H6 c ]+ c# b; @8 O
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- uint8_t RTC_Hours; /*!< Specifies the RTC Time Hour.' k, S+ G7 j1 g" T# Q4 {
- This parameter must be set to a value in the 0-12 range0 u6 y: T. s4 f+ g2 i0 d; ?
- if the RTC_HourFormat_12 is selected or 0-23 range if
0 {9 y l5 U7 I - the RTC_HourFormat_24 is selected. */
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- uint8_t RTC_Minutes; /*!< Specifies the RTC Time Minutes. S" J: s v; v& l
- This parameter must be set to a value in the 0-59 range. */; r9 _" p4 o+ x5 r$ M+ K
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- uint8_t RTC_Seconds; /*!< Specifies the RTC Time Seconds.
0 t: W1 }: n$ G$ x h7 S - This parameter must be set to a value in the 0-59 range. */; Q: n2 A. x/ h% x1 R: ~3 ^: _
* H9 E1 k* _( x+ I5 P- uint8_t RTC_H12; /*!< Specifies the RTC AM/PM Time.% _- ~+ L2 {" A$ T: r* P+ z
- This parameter can be a value of @ref RTC_AM_PM_Definitions */
I/ _ ]& C% X; N - }RTC_TimeTypeDef;
复制代码 在.C文件里做申明:
# Q+ _1 m0 _9 O- RTC_DateTypeDef RTC_DateStructure;: W: p6 X0 r% z
- RTC_TimeTypeDef RTC_TimeStructure;
复制代码 在main.c中:4 Q- \- R4 z* `4 t9 L$ T
- RTC_Config();# U( X+ Y8 y: a
- while (1)7 ^$ \+ q9 P3 \
- {
! c% C: O5 U6 c ]! g. o4 z" Y - /* Get the RTC current Time */
$ @& [! w: t/ j3 F - RTC_GetTime(RTC_Format_BIN, &RTC_TimeStructure);& r5 t, I2 J3 U0 X
- /* Get the RTC current Date */
5 E: o+ D' s | - RTC_GetDate(RTC_Format_BIN, &RTC_DateStructure);' w' }) |" A# ~' k
- /* Display time Format : hh:mm:ss */
4 v5 \' T; `* T' T. ]! A - sprintf((char*)showtime,"%.2d:%.2d:%.2d",RTC_TimeStructure.RTC_Hours, RTC_TimeStructure.RTC_Minutes, RTC_TimeStructure.RTC_Seconds);% D) j: I8 p! {5 b8 ?: g
- /* Display date Format : mm-dd-yy */4 d* ~+ Z) Q W8 {
- sprintf((char*)showdate,"%.2d-%.2d-%.2d",RTC_DateStructure.RTC_Month, RTC_DateStructure.RTC_Date, 2000 + RTC_DateStructure.RTC_Year); ' }6 C( r1 U; L! g' K6 _: ~
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- }
复制代码 在中断中描输出:
0 x) V5 c. {$ U" f: t- void RTC_Alarm_IRQHandler(void)
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- if(RTC_GetITStatus(RTC_IT_ALRA) != RESET)$ @) [! M# Z9 k# x* u, L- U
- {
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- if(GPIO_ReadOutputDataBit(GPIOA, GPIO_Pin_5)==0) t# }6 I9 K3 h* P7 r
- GPIO_SetBits(GPIOA, GPIO_Pin_5); //Green LED+ a' n/ z) w- J: f" P7 {
- else
9 e- w% F6 y0 Z - GPIO_ResetBits(GPIOA, GPIO_Pin_5); //Green LED
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- RTC_ClearITPendingBit(RTC_IT_ALRA);
% d* U" Y( `4 e# h. T3 H - EXTI_ClearITPendingBit(EXTI_Line17);' `5 ?% {( Q/ F2 N$ b
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- }
复制代码 附件:+ `$ G& {3 |2 V' O8 v& B" |3 @
Nucleo_F334R8_RTC.zip
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