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;& U# y5 W7 n) b4 F7 X% G
- RTC_TimeTypeDef RTC_TimeStructure;
复制代码 在STM32F30X_RTC.H文件中已定义:* X- `; ^5 q& l0 K) l+ g! \
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- /**
) ?9 r( q2 b8 F - * @brief RTC Date structure definition
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- typedef struct
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- uint8_t RTC_WeekDay; /*!< Specifies the RTC Date WeekDay.
0 o: [ S1 i# l5 P# D$ | - This parameter can be a value of @ref RTC_WeekDay_Definitions */* _7 i0 x" x( Z, ~% T# J- b
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- uint8_t RTC_Month; /*!< Specifies the RTC Date Month (in BCD format)./ ]9 F3 M" S2 H- z& Z- D- @
- This parameter can be a value of @ref RTC_Month_Date_Definitions */
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- uint8_t RTC_Date; /*!< Specifies the RTC Date.4 k# U# h2 K4 K+ q, G+ i
- This parameter must be set to a value in the 1-31 range. */. C- ~ j9 U: y2 a, T% J) x* E
-
! f- e) x" h* B' `" @: p9 l* L - uint8_t RTC_Year; /*!< Specifies the RTC Date Year." r* S( x4 ]# ~6 \9 m+ B
- This parameter must be set to a value in the 0-99 range. */
3 z Z2 x5 \( p+ [/ u) w+ ^3 P; L - }RTC_DateTypeDef;7 i( S+ I; q2 J5 }( m& d
复制代码- typedef struct
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5 u' _% S: o. z - uint8_t RTC_Hours; /*!< Specifies the RTC Time Hour.
7 {7 R5 w! m* Z' i8 O8 F5 v - This parameter must be set to a value in the 0-12 range- g2 r9 l5 m7 r% T- ^# U+ L
- if the RTC_HourFormat_12 is selected or 0-23 range if" t, u6 e2 ?% G; V0 H
- the RTC_HourFormat_24 is selected. */
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- uint8_t RTC_Minutes; /*!< Specifies the RTC Time Minutes.
, a9 g/ P+ Q% L, ? - This parameter must be set to a value in the 0-59 range. */0 k# u- S3 x' s& P+ H R, @2 V, d
-
5 m' `1 f j9 N: S* N+ ^ - uint8_t RTC_Seconds; /*!< Specifies the RTC Time Seconds.2 v; \0 P4 Y5 y; c' o' s
- This parameter must be set to a value in the 0-59 range. */( u) t* X1 A; E% U
+ j: c; f) o8 ~' r+ k- uint8_t RTC_H12; /*!< Specifies the RTC AM/PM Time.
' |+ D- D" n$ @) | - This parameter can be a value of @ref RTC_AM_PM_Definitions *// u( p6 I1 u( T6 H$ o! \
- }RTC_TimeTypeDef;
复制代码 在.C文件里做申明:* e- g6 b5 E1 ~4 W
- RTC_DateTypeDef RTC_DateStructure;5 w4 F i8 }* A: P% H. ^
- RTC_TimeTypeDef RTC_TimeStructure;
复制代码 在main.c中:+ |' H- h/ Y# U) t+ {0 E T- u
- RTC_Config();
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- /* Get the RTC current Time */
. p" j! X( d6 z1 e1 L& x! C: ?% p - RTC_GetTime(RTC_Format_BIN, &RTC_TimeStructure);
% ?3 o/ ?1 r; x1 l - /* Get the RTC current Date */8 j$ B" R, n! ~2 S( m6 n4 d% X
- RTC_GetDate(RTC_Format_BIN, &RTC_DateStructure);& K& S; `* r; o$ x& C3 M4 F
- /* Display time Format : hh:mm:ss */& S8 N$ h* j. ~+ s
- sprintf((char*)showtime,"%.2d:%.2d:%.2d",RTC_TimeStructure.RTC_Hours, RTC_TimeStructure.RTC_Minutes, RTC_TimeStructure.RTC_Seconds);
2 O4 D- a' R: R' {2 y* [8 U - /* Display date Format : mm-dd-yy */2 Z1 e$ k( U+ f" _! [6 ?$ W3 Y. c
- sprintf((char*)showdate,"%.2d-%.2d-%.2d",RTC_DateStructure.RTC_Month, RTC_DateStructure.RTC_Date, 2000 + RTC_DateStructure.RTC_Year);
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复制代码 在中断中描输出:! j" W$ n* |0 l' Q* w* z* }
- void RTC_Alarm_IRQHandler(void)3 i; y) y. O* G& [
- {
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- if(RTC_GetITStatus(RTC_IT_ALRA) != RESET)% ~8 h, t& u* O+ }
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/ n, ]. \6 R9 f# D* ^# F M. ] - if(GPIO_ReadOutputDataBit(GPIOA, GPIO_Pin_5)==0)* j) s3 z5 L, p
- GPIO_SetBits(GPIOA, GPIO_Pin_5); //Green LED
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: M, l. B. _0 W; J! y0 ?( Z - GPIO_ResetBits(GPIOA, GPIO_Pin_5); //Green LED
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2 D$ P0 _1 \" X* i- RTC_ClearITPendingBit(RTC_IT_ALRA);
' M* a- G Q9 |( C* C( k - EXTI_ClearITPendingBit(EXTI_Line17);; M* M7 t. E' W* B
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- }
复制代码 附件:
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Nucleo_F334R8_RTC.zip
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