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;( x1 P5 f9 j4 G( c
- RTC_TimeTypeDef RTC_TimeStructure;
复制代码 在STM32F30X_RTC.H文件中已定义:
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$ E3 {$ B/ x4 ~) |1 p$ n3 N. U. d- /**
; Z4 w, z$ f- e5 i- z. r - * @brief RTC Date structure definition
. n8 h6 N, \6 e+ p - */
: Z3 F8 ?8 P' X r5 C' d - typedef struct
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6 y `( |/ x# E8 t - uint8_t RTC_WeekDay; /*!< Specifies the RTC Date WeekDay.
1 m, T; M, [6 w! l - This parameter can be a value of @ref RTC_WeekDay_Definitions */
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' O" j2 `' Y- u) c - uint8_t RTC_Month; /*!< Specifies the RTC Date Month (in BCD format).. o: z6 A% _* c u$ 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.' R+ A& g N8 K( S
- This parameter must be set to a value in the 1-31 range. */: {4 \( L, z# \7 h2 n' l
-
, {7 M# }8 p T; ]2 { - uint8_t RTC_Year; /*!< Specifies the RTC Date Year.
8 V4 H( D5 t) ~/ |9 \ - This parameter must be set to a value in the 0-99 range. */- u, K/ W9 Q7 N2 }
- }RTC_DateTypeDef;8 v/ l2 o# \5 ?, |6 ^# Z
复制代码- typedef struct! r" [7 t1 V6 l
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- uint8_t RTC_Hours; /*!< Specifies the RTC Time Hour.
: t8 u6 d5 B: M% T - This parameter must be set to a value in the 0-12 range
, \' X9 D6 \" H+ I+ q3 z, A8 V - if the RTC_HourFormat_12 is selected or 0-23 range if( _# s* e" Q3 \4 L1 j. g: t, m
- the RTC_HourFormat_24 is selected. */
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- uint8_t RTC_Minutes; /*!< Specifies the RTC Time Minutes.& `/ n& g, t# ~% U8 X% |3 s. }# o ]
- This parameter must be set to a value in the 0-59 range. */: }! y* C) |* ~4 z# u! t' y4 i
-
! Y ^% _2 N" I; @% F5 n# M: ]$ w+ ` - uint8_t RTC_Seconds; /*!< Specifies the RTC Time Seconds.
1 f" q, H0 M3 \7 K8 f) e - This parameter must be set to a value in the 0-59 range. */
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- uint8_t RTC_H12; /*!< Specifies the RTC AM/PM Time.; }$ s# e6 }6 {5 `9 Y
- This parameter can be a value of @ref RTC_AM_PM_Definitions */+ p7 d+ d, m4 Q- A3 Z& W
- }RTC_TimeTypeDef;
复制代码 在.C文件里做申明:% W* x" f# T0 Y9 g
- RTC_DateTypeDef RTC_DateStructure;
( B" m3 S8 v5 O0 m% K3 p- v - RTC_TimeTypeDef RTC_TimeStructure;
复制代码 在main.c中:7 ]; m7 z' V/ l+ W' n
- RTC_Config();
& ~ Q9 u( x2 s6 n+ M - while (1)
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- /* Get the RTC current Time */! G, N' _1 k8 ~5 x
- RTC_GetTime(RTC_Format_BIN, &RTC_TimeStructure);
/ w6 J& J1 L- v7 q# S - /* Get the RTC current Date */
+ T; k7 g$ P" Z2 k5 z" q7 w - RTC_GetDate(RTC_Format_BIN, &RTC_DateStructure);
; P1 L9 g; g1 J" i - /* Display time Format : hh:mm:ss */9 n0 Z4 ]5 B' }+ K# P
- sprintf((char*)showtime,"%.2d:%.2d:%.2d",RTC_TimeStructure.RTC_Hours, RTC_TimeStructure.RTC_Minutes, RTC_TimeStructure.RTC_Seconds);
$ q9 {( G/ ]; M2 O% v; M - /* Display date Format : mm-dd-yy */, r" i* ?4 ?- y) X& H5 }6 {
- 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:
' ^# b4 h$ G* E, _4 ^& y/ O/ j- void RTC_Alarm_IRQHandler(void)
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$ Q6 ] l! L6 `2 u( [0 M6 q) K- if(RTC_GetITStatus(RTC_IT_ALRA) != RESET)4 U- _# m' _" M& F1 x2 |
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- if(GPIO_ReadOutputDataBit(GPIOA, GPIO_Pin_5)==0)2 u" c! z! B/ O& N" U& Z
- GPIO_SetBits(GPIOA, GPIO_Pin_5); //Green LED* U# h @* n" j6 q; Z0 Z9 G, _
- else
z1 ]1 N6 R9 t( N- g+ q - GPIO_ResetBits(GPIOA, GPIO_Pin_5); //Green LED) u5 R6 T( v. ]+ L- w" r- l( L
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- RTC_ClearITPendingBit(RTC_IT_ALRA);
( E; h) h0 G; J - EXTI_ClearITPendingBit(EXTI_Line17);
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- }
复制代码 附件:
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Nucleo_F334R8_RTC.zip
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