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;. x/ ?, W1 j+ u, y, F7 @& `, t
- RTC_TimeTypeDef RTC_TimeStructure;
复制代码 在STM32F30X_RTC.H文件中已定义:# n; D2 _5 R5 M4 x* ~
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" E' L3 n; y0 }* r6 Y e- /**
+ U! L$ ?) I1 i1 r n6 E/ @ - * @brief RTC Date structure definition 1 R% j( x) x# {( n, j0 p4 [
- */4 I5 d) Q% { Y# ^1 b+ Z
- typedef struct
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- uint8_t RTC_WeekDay; /*!< Specifies the RTC Date WeekDay.) s$ [8 F+ ~: h. H
- This parameter can be a value of @ref RTC_WeekDay_Definitions */. b4 e6 a3 Y( |# F7 Q
-
1 u! _- H: ^; ^/ K | - uint8_t RTC_Month; /*!< Specifies the RTC Date Month (in BCD format).! j) k% H9 `, X2 l7 V
- This parameter can be a value of @ref RTC_Month_Date_Definitions */# l/ |- O- A: X* |. |
- a2 y/ J4 I, {8 Q- {- uint8_t RTC_Date; /*!< Specifies the RTC Date.4 Z7 ^1 ?! P8 [8 t8 g
- This parameter must be set to a value in the 1-31 range. */5 r' h1 p; n; B0 d. D
-
8 f A! A+ }% ?- A - uint8_t RTC_Year; /*!< Specifies the RTC Date Year.
0 g. J5 I* P; b X, c - This parameter must be set to a value in the 0-99 range. */
/ @) r* l% n3 n7 g - }RTC_DateTypeDef;: `& Q$ \+ Z; U2 |1 s. p
复制代码- typedef struct
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- uint8_t RTC_Hours; /*!< Specifies the RTC Time Hour.
) @4 \' G+ D7 y6 ` - This parameter must be set to a value in the 0-12 range
! t4 L5 h. m/ A - if the RTC_HourFormat_12 is selected or 0-23 range if
0 R) C5 h! j6 I8 H0 ^$ ~ - the RTC_HourFormat_24 is selected. */
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4 ]3 E6 t. O: _- R$ m- uint8_t RTC_Minutes; /*!< Specifies the RTC Time Minutes.
8 i1 E4 L, D' }+ ~2 h4 e! v% x - This parameter must be set to a value in the 0-59 range. */1 F: Z8 Z6 N7 o; E& s. n
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- uint8_t RTC_Seconds; /*!< Specifies the RTC Time Seconds.3 B) ^3 [$ E/ [$ W' G
- This parameter must be set to a value in the 0-59 range. */
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) J" ]+ g M+ x# s0 W- uint8_t RTC_H12; /*!< Specifies the RTC AM/PM Time. d& N1 Q% q" Z/ v' M" b# d- Z. D
- This parameter can be a value of @ref RTC_AM_PM_Definitions */) B* T: _+ a/ k5 V
- }RTC_TimeTypeDef;
复制代码 在.C文件里做申明:
; P: n( x( {3 w+ d- RTC_DateTypeDef RTC_DateStructure;, k0 p7 f7 G- l8 {! B# c
- RTC_TimeTypeDef RTC_TimeStructure;
复制代码 在main.c中:7 S3 H0 r F. p: C" u3 j4 F
- RTC_Config();
+ R' A; a3 b6 u6 l3 r' l! ? m - while (1)/ X9 |$ Y7 U' d1 }. q
- {
5 h2 f( F/ q3 d+ w! k) H* J4 r - /* Get the RTC current Time */
: N+ x! }4 Z4 i6 J* I - RTC_GetTime(RTC_Format_BIN, &RTC_TimeStructure);7 d5 N0 i; n' D+ ^4 Q
- /* Get the RTC current Date */: J- }, v' K- r0 r* s
- RTC_GetDate(RTC_Format_BIN, &RTC_DateStructure);6 F1 Z1 e+ s. @9 }% {: h" o, l8 J
- /* Display time Format : hh:mm:ss */9 f3 Y4 C% U% _
- sprintf((char*)showtime,"%.2d:%.2d:%.2d",RTC_TimeStructure.RTC_Hours, RTC_TimeStructure.RTC_Minutes, RTC_TimeStructure.RTC_Seconds);0 A( z. A- j% `6 B- P( M7 W7 @
- /* Display date Format : mm-dd-yy */
( q @$ k& S2 ` - sprintf((char*)showdate,"%.2d-%.2d-%.2d",RTC_DateStructure.RTC_Month, RTC_DateStructure.RTC_Date, 2000 + RTC_DateStructure.RTC_Year); 4 L& n# N z1 t9 {- x5 `: \# N; F
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- }
复制代码 在中断中描输出:
& X' w5 n/ v+ b: f6 W- void RTC_Alarm_IRQHandler(void)2 D3 Q6 S8 Q" V6 v1 r+ Z& g- k
- {
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8 i8 c5 F$ H3 u" c1 }5 ~- if(RTC_GetITStatus(RTC_IT_ALRA) != RESET)
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- if(GPIO_ReadOutputDataBit(GPIOA, GPIO_Pin_5)==0)
8 y& N: _$ c& E4 o* n - GPIO_SetBits(GPIOA, GPIO_Pin_5); //Green LED& {& P3 X' ] `& F- n5 E4 M- @' a4 A @
- else
. h& a8 R1 A: J' A3 i* Q - GPIO_ResetBits(GPIOA, GPIO_Pin_5); //Green LED
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- RTC_ClearITPendingBit(RTC_IT_ALRA);) u7 u$ q- j: X
- EXTI_ClearITPendingBit(EXTI_Line17);! M) `3 A( U. c) ~, t& m
- }
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复制代码 附件:6 `" O: G- {/ g. R/ ]4 e, A
Nucleo_F334R8_RTC.zip
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