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;, F% M9 \7 S! Q4 G& s" e& X
- RTC_TimeTypeDef RTC_TimeStructure;
复制代码 在STM32F30X_RTC.H文件中已定义:
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( z w+ i. ^5 v- /** , E2 I3 A. j7 W4 g' c
- * @brief RTC Date structure definition
. F3 u/ t: }6 A& Y; g - */
7 Q( d2 L- X# s4 h - typedef struct
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- uint8_t RTC_WeekDay; /*!< Specifies the RTC Date WeekDay.
, {. ?: M4 U* k. Q% S - This parameter can be a value of @ref RTC_WeekDay_Definitions */% B2 u( p* \+ {+ K
-
a" p$ R& ]% T9 F" [7 V: G - uint8_t RTC_Month; /*!< Specifies the RTC Date Month (in BCD format).- ?% l6 `& F5 l
- This parameter can be a value of @ref RTC_Month_Date_Definitions */
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- uint8_t RTC_Date; /*!< Specifies the RTC Date.
% T: Q% G. \8 I7 ?9 G" E - This parameter must be set to a value in the 1-31 range. */
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, ]$ G6 f/ a+ G' R- C/ \: M/ z - uint8_t RTC_Year; /*!< Specifies the RTC Date Year.
O* N) d" k8 |# }4 N - This parameter must be set to a value in the 0-99 range. */
& b7 n% e# C" t/ O4 E0 J9 l7 r - }RTC_DateTypeDef;: v* X9 N' S( c: f, u
复制代码- typedef struct9 k8 d$ I* n/ ^; T
- {
+ J0 v; P. Z$ }# k6 d2 i5 X9 D2 w - uint8_t RTC_Hours; /*!< Specifies the RTC Time Hour.
: N$ S0 c$ s+ t - This parameter must be set to a value in the 0-12 range& B T3 P' T% ~
- if the RTC_HourFormat_12 is selected or 0-23 range if, Y7 |8 L4 \# \ j0 j9 b# H# T) N
- the RTC_HourFormat_24 is selected. */
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- uint8_t RTC_Minutes; /*!< Specifies the RTC Time Minutes.7 D- z$ V$ ?( L9 I3 P; P$ |
- This parameter must be set to a value in the 0-59 range. */
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- uint8_t RTC_Seconds; /*!< Specifies the RTC Time Seconds.9 O3 g4 n* M" Z9 S. x
- This parameter must be set to a value in the 0-59 range. */
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+ Y& O& [4 G4 a9 H+ h2 b G6 G$ w- uint8_t RTC_H12; /*!< Specifies the RTC AM/PM Time.1 A6 l5 I4 \* O! R3 `& K7 z
- This parameter can be a value of @ref RTC_AM_PM_Definitions */; e( x1 D( D: m, G* V
- }RTC_TimeTypeDef;
复制代码 在.C文件里做申明:
. }4 d6 s) D: o& C) |# M( E- RTC_DateTypeDef RTC_DateStructure;
; p; t8 u; L5 ]' | - RTC_TimeTypeDef RTC_TimeStructure;
复制代码 在main.c中:& i4 A- `( J2 C! y- h7 v0 j
- RTC_Config();
) v0 ?) _ [( B7 f5 I! E( S6 H - while (1)
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- /* Get the RTC current Time */7 k! z7 M9 Z5 l! l
- RTC_GetTime(RTC_Format_BIN, &RTC_TimeStructure);$ [/ [2 ~. `' o! G
- /* Get the RTC current Date */6 ^1 U2 a& G9 T) w& P r
- RTC_GetDate(RTC_Format_BIN, &RTC_DateStructure);
5 G# x8 m9 W2 h! L9 F - /* Display time Format : hh:mm:ss *// J, Y! S6 y) D' i
- sprintf((char*)showtime,"%.2d:%.2d:%.2d",RTC_TimeStructure.RTC_Hours, RTC_TimeStructure.RTC_Minutes, RTC_TimeStructure.RTC_Seconds);
/ P7 n4 d6 L: m - /* Display date Format : mm-dd-yy */ u% M6 E" f! ]0 s
- sprintf((char*)showdate,"%.2d-%.2d-%.2d",RTC_DateStructure.RTC_Month, RTC_DateStructure.RTC_Date, 2000 + RTC_DateStructure.RTC_Year); 0 T8 Y; i% y6 Q8 a
-
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复制代码 在中断中描输出:
/ |0 r3 t* r& p# e5 Z. v5 a! H/ {- void RTC_Alarm_IRQHandler(void)
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- if(RTC_GetITStatus(RTC_IT_ALRA) != RESET)
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- if(GPIO_ReadOutputDataBit(GPIOA, GPIO_Pin_5)==0)& n# K; L2 z' P4 d( j5 L
- GPIO_SetBits(GPIOA, GPIO_Pin_5); //Green LED
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- GPIO_ResetBits(GPIOA, GPIO_Pin_5); //Green LED
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- RTC_ClearITPendingBit(RTC_IT_ALRA);4 E( j" m# {8 x% X: D/ X _' \1 p9 _
- EXTI_ClearITPendingBit(EXTI_Line17);( M/ b6 R! ?/ {2 H
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- }
复制代码 附件:
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Nucleo_F334R8_RTC.zip
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