实验效果
9 s1 X* j9 F8 c. GLCD屏幕显示 年月日时分秒 设置任意时间 到时间蜂鸣器启动4 {. V+ \# k3 y
# d' D, R; w! u {
主函数
8 j3 `3 t+ H, R* S" q1 m' v- 简单说 就是初始化各个部件
+ J3 ]& ?/ A0 T Z( U - 然后让LED1 闪烁来提示系统的正常运行
$ g. n9 {1 g( I0 w2 D - 显示屏显示实时时间2 V/ x9 }% M8 X, n# l
- #include "led.h"
2 _& T7 _6 n" E) q' R& S9 P1 z - #include "delay.h"
; N1 E* ~7 Q0 z* v - #include "key.h") r' Z; ?) N2 _/ X' j, q# \
- #include "sys.h"; L: ^+ ?; \1 Y; q. c
- #include "lcd.h"
" [- u4 l& S3 m- ` - #include "usart.h" 4 }6 a1 D$ h. \, Z/ S8 z7 d
- #include "usmart.h" * N" `5 h0 F: n) D" n
- #include "rtc.h" 1 Z, [( I6 P) f/ R! L
- #include "oled.h"
( x0 n6 W- u5 z& {/ }+ U - #include "beep.h"
) a i9 e4 b$ Q - + g( n1 J, Z5 {9 m
- int main(void)4 Q% F( m, Y u5 X" ` _, A7 b
- { : j* X% o" f3 U: R) l5 M
- u8 t=0; 4 R2 t9 ?# N5 G9 Q" k
- delay_init(); . e" T) c( `3 B/ b3 n( |
- NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);
' X7 z2 W; r/ }1 h - uart_init(115200); //
7 W; B/ ~6 G$ K& ~0 ] - LED_Init(); //: Y7 {) Y) n& ]: `5 M
- LCD_Init();
5 M2 y& {5 I) H) Y2 w - OLED_Init(); //
0 U9 R: q1 |8 ~- {( Z( j+ ? - OLED_Clear();
6 @8 Q3 V# Z' A" B5 }9 | - usmart_dev.init(SystemCoreClock/1000000); //) k8 Y& R/ k6 g6 E% _. d3 q; {5 U9 I
- BEEP_Init();
8 x8 g% b3 j# I7 b% c% { - RTC_Init(); //$ x: U6 f: g: k
- POINT_COLOR=RED;// H2 `- G6 e. O6 Z8 N3 x$ F
- LCD_ShowString(60,50,200,16,16,"Elite STM32");
% b! L7 e3 p+ Z& A6 f4 L* d - LCD_ShowString(60,70,200,16,16,"RTC TEST"); / e4 C0 v, R5 ]- I v
- LCD_ShowString(60,90,200,16,16,"ATOM@ALIENTEK");
3 |. j0 l- c# g5 z6 [ - LCD_ShowString(60,110,200,16,16,"2015/1/14");
3 N% e$ Y3 D( s: f( s - //ÏÔʾʱ¼ä
: G: m" J8 A; b - POINT_COLOR=BLUE;//! N. s; W! `2 A: D1 U( O; q4 v; t
- LCD_ShowString(60,130,200,16,16," - - ");
8 p+ _7 q# d' f9 e: j A - LCD_ShowString(60,162,200,16,16," : : ");
5 @2 n. W# @6 M2 ^ - while(1)# m/ C) L( ]$ i
- { 5 Z$ q; M/ L: J3 x6 u# W
- if(t!=calendar.sec)
( I* F5 H+ ^2 G! _3 _ - {
8 s" _; X( \, h3 T6 n/ u- H - t=calendar.sec;
% ^ g3 K/ a; I. z - //LCD_ShowNum(60,130,calendar.w_year,4,16);
5 b1 _+ ?9 H5 `4 u) {$ [9 g - OLED_ShowNum(0,2,calendar.w_year,4,16); 1 j! I( N, J; F4 d
- //LCD_ShowNum(100,130,calendar.w_month,2,16);+ Q# }3 A- z- ^ q8 B- z! k) x
- OLED_ShowNum(0,4,calendar.w_month,2,16); % x8 T0 p t- b' f! b
- //LCD_ShowNum(124,130,calendar.w_date,2,16);
' ~6 L3 b' [4 V9 n" E' f - OLED_ShowNum(0,6,calendar.w_date,2,16); ; s1 L+ I% U& S! { O, c* O% a( ~
- switch(calendar.week)/ p% r/ ] \; X9 F/ ~' C
- {) b/ o. q$ R; k7 w7 @% S8 D
- case 0:
?' {; ~# o6 X% u6 Q- ~ - LCD_ShowString(60,148,200,16,16,"Sunday ");
4 ]( c' s& m7 U& g - break;
, c5 b8 G+ w9 n! l2 [# m - case 1:
/ h6 C' I) m" |: ` n* P' p/ C - LCD_ShowString(60,148,200,16,16,"Monday ");! \1 q5 y' K1 n; Q
- break;
2 Q* X5 f0 i' f/ o - case 2:
; S/ j& }/ ?6 l; j6 G' K - LCD_ShowString(60,148,200,16,16,"Tuesday ");
) J6 |8 N- q- T7 I o3 W - break;
) {% u: X0 ?! b% c: M - case 3:1 P$ u8 h1 T8 Z' L
- LCD_ShowString(60,148,200,16,16,"Wednesday");8 J9 l. a+ y; L( u. p$ ~
- break;: b d' A$ y3 L" y# I% a' T9 l# x9 _
- case 4:, j* w3 L) p( ?9 [8 k
- LCD_ShowString(60,148,200,16,16,"Thursday ");; @( [' f; h7 \7 Y' Z8 k# o
- break;
( L( \3 Y, ~& L - case 5:2 x( s( ]/ t7 O2 Q; B
- LCD_ShowString(60,148,200,16,16,"Friday ");2 V, L, y n$ ?- C' n" M: N
- break;2 [* `/ p. R/ w2 C; D' d$ Q& E
- case 6:, v& H. P. ?: r
- LCD_ShowString(60,148,200,16,16,"Saturday ");1 Y& s; T" L. d1 O" n* J1 k! I0 o* s
- break;
* f+ |! w, ]9 l7 |& M7 n- s+ a5 x$ M* f - }
8 j7 W- |/ Y0 T) D - LCD_ShowNum(60,162,calendar.hour,2,16); : m9 ~! f z/ ^' I7 @5 k. U5 k
- LCD_ShowNum(84,162,calendar.min,2,16); 9 J# ?6 L# u5 d# T t' S
- LCD_ShowNum(108,162,calendar.sec,2,16);
( P; O) N k9 I0 U! n9 f A - LED0=!LED0;
" @* P% [4 `; c. e. f& m4 t! S. V - } - l* @3 u0 B4 K
- delay_ms(10); 6 i/ Z7 s" f; v' A+ N9 J0 s
- }; ; ^$ t. y3 {; r7 X
- }- v$ g4 s: K6 x( l
复制代码
4 u* b o9 i0 T' r. M$ CRTC配置函数
8 T) f( z5 ~& D7 w l这里说明一下 我的代码是可以直接复制替换的0 n6 v& Z; ?' g0 C# E8 I2 ^
说下基于原子我修改了哪些: l0 E3 k3 _% k* Y5 n6 w3 k. h, B- }
使能了时钟和闹钟中断 之前只使能了时钟(RTC_ITConfig(RTC_IT_SEC|RTC_IT_ALR, ENABLE);)% E' S& V& y4 u0 W$ E7 Y" x2 D
调用了设置闹钟值的函数(RTC_Alarm_Set(2021,1,13,16,39,59);)/ @/ e" l0 `! } v
1 u- J# u6 `2 J. Y. Z# Z7 Q- 在闹钟中断的函数中 增加了蜂鸣器 启动 BEEP=1;# D! I; m* p2 m' r7 k. t1 a
- #include "sys.h"7 X% b5 e$ ?0 O' U, Y7 N
- #include "delay.h"/ f C; P, q6 m- |9 P4 t
- #include "usart.h"
: q8 r- K8 P5 {/ p9 i - #include "rtc.h" & i* n8 y0 u; c. \ f, I
- #include "led.h"
: A0 O5 o& t! b7 y. g; y. d" L. U' a - #include "beep.h" 4 [6 y( p+ A K0 w4 B- c8 |8 P2 t! {
- ; d& @* \: X9 E# U ?
-
4 F9 m- I( K) G* l( C& b - _calendar_obj calendar;1 H+ L+ w/ m. b, a" E4 v( z
-
3 M3 x4 c b- M/ k - static void RTC_NVIC_Config(void)
1 `# P' W$ N* |+ U - { / M3 A) Z. p) ]0 ?( q' q' D) x
- NVIC_InitTypeDef NVIC_InitStructure;
5 p3 y( o" W/ u) ]; Y3 V - NVIC_InitStructure.NVIC_IRQChannel = RTC_IRQn; m& [- B3 ]& b7 r% u5 \
- NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0; : F) M* L6 V! w/ X( p
- NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
: S; U2 F6 Y! N1 l. x- F - NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
- s- F7 k3 B J - NVIC_Init(&NVIC_InitStructure); * R) h: L3 P o1 I! k/ S
- }
( v- t' F) t2 r% }/ }& ~
7 a7 m1 p. c# }( R; B3 O3 Z
: J2 j9 Y( @# q" _/ Q- u8 RTC_Init(void)
9 [* {' X5 e' Q8 c2 a - {* v i8 ^ p2 N8 c. ~- E' g% C4 O
- . X. T6 p' Y* H2 ~6 }0 u, ]
- u8 temp=0;
5 R6 T4 R9 w0 u5 D% d _. G# r* K - RCC_APB1PeriphClockCmd(RCC_APB1Periph_PWR | RCC_APB1Periph_BKP, ENABLE); , b6 G- P# |7 r% e9 [
- PWR_BackupAccessCmd(ENABLE);
6 {' B5 ]+ Q" ~# j9 H - if (BKP_ReadBackupRegister(BKP_DR1) != 0x5051) 7 S" U7 Q, n# p* r) S7 `1 g2 g& G
- { n P& {& Z- c4 w+ b
- BKP_DeInit();9 \7 P" v6 o( ]7 o2 o% }( N
- RCC_LSEConfig(RCC_LSE_ON); 7 J& {. L9 ]$ h# `
- while (RCC_GetFlagStatus(RCC_FLAG_LSERDY) == RESET&&temp<250) 1 F. w5 L* R& H
- {
! R3 F5 _- k# ~ - temp++;% o/ N$ m8 a9 J1 s# a
- delay_ms(10);: g* P$ d9 y7 h9 K4 _" C5 q
- }
$ s& n1 G' b! }" G6 k8 ^7 a - if(temp>=250)return 1; $ c% T K/ X/ _
- RCC_RTCCLKConfig(RCC_RTCCLKSource_LSE); + z( R0 I( u, L _( L0 B g
- RCC_RTCCLKCmd(ENABLE);
8 ~1 s. q( F M; b; G7 i( ` - RTC_WaitForLastTask();
5 B( Z+ h9 b! B# ?+ D+ c3 P/ ^ - RTC_WaitForSynchro();
7 w; R, {1 w% W* h2 A - RTC_ITConfig(RTC_IT_SEC|RTC_IT_ALR, ENABLE); & Y; Y+ z! ^; P! {/ J4 M% w
- RTC_WaitForLastTask();
5 F# T: J" a/ [& x3 r( {& g3 L: }* P - RTC_EnterConfigMode();2 S* s3 |5 C7 ~' _- C
- RTC_SetPrescaler(32767);
7 ?; L2 ?( h0 Z; H: _ - RTC_WaitForLastTask();
6 K- [! ~0 b$ F" H - RTC_Set(2021,1,13,16,38,59); 9 u) I% B o& d! ^5 b+ F
- RTC_Alarm_Set(2021,1,13,16,39,59);
) V! g4 _7 g2 _; M9 h# w. D - RTC_ExitConfigMode();
4 T' U7 h0 r0 v4 T/ M - BKP_WriteBackupRegister(BKP_DR1, 0X5051); & R, M- a+ C' ~; W/ c# k
- }
& ^& b' K* O: q7 b: q$ [, J - else//ϵͳ¼ÌÐø¼ÆÊ±% ]/ _2 c! p1 H+ Z
- {
% Q6 n5 n& U- d; A# H - " t# ~8 s* m8 N4 u7 U3 u) x# n0 }
- RTC_WaitForSynchro();
$ D# R/ s# F" o$ V, e; H - RTC_ITConfig(RTC_IT_SEC, ENABLE); 6 f2 o Y, j! \3 m# U
- RTC_WaitForLastTask(); 8 p( B3 @* a7 H& h
- }2 }& F2 [* h' ~3 E* R& v. |8 a
- RTC_NVIC_Config(); ' Q- o1 f: d" W
- RTC_Get();
1 r Q# I0 t$ }+ d% G6 a - return 0;
* r0 z; c p/ G# c2 k6 z3 T - 4 l1 x- g7 h* W7 ^; V
- } $ }) i( L, l1 \1 w# o0 {
-
; D* Q( v8 ~+ ~6 s: w1 K0 j/ [ - void RTC_IRQHandler(void). ^. [# y* V: l
- {
) _- k" Z. f5 n: O - if (RTC_GetITStatus(RTC_IT_SEC) != RESET)* e8 U. }7 f/ h& [
- { 3 r4 _# U. X g4 _2 d1 ]
- RTC_Get();
$ z0 x5 j+ h1 I - }
- c6 K9 k ~. l6 w7 z - if(RTC_GetITStatus(RTC_IT_ALR)!= RESET)
5 [8 F* k Q0 L5 u Z - {
7 H* O! w( ?* j1 Q - RTC_ClearITPendingBit(RTC_IT_ALR); 7 x" j& `: K3 `
- RTC_Get();
$ G: h0 r7 }7 h' m9 b: P - printf("Alarm Time:%d-%d-%d %d:%d:%d\n",calendar.w_year,calendar.w_month,calendar.w_date,calendar.hour,calendar.min,calendar.sec);8 l/ G+ e+ Q: W* c
- BEEP=1;
; D0 h3 A7 d6 f4 J0 o/ t - } & i# Z- C7 c+ `6 z9 d7 H# Q
- RTC_ClearITPendingBit(RTC_IT_SEC|RTC_IT_OW);
' C7 k4 }( {4 f/ @ - RTC_WaitForLastTask(); 3 O+ h, d4 Q( ]
- }
1 ^4 i& {0 `8 x5 B1 I9 |3 R. j - f/ V5 C1 ~! c6 {
- u8 Is_Leap_Year(u16 year)+ I7 R2 R% T* x/ ?5 E0 k
- { - L% `3 z9 j" {. s& P3 z
- if(year%4==0) //. V1 R# R0 m1 h* W/ i+ B
- { ; x0 Z) N, j! ^6 Q
- if(year%100==0)
* n. m' |+ E4 S: D2 o' M6 ?# j - { . t' e. n0 D; j) `6 n9 I5 I
- if(year%400==0)return 1;
$ r! Q; E/ U- Z1 A- t" E! O - else return 0; " A; ^) _/ q+ ?4 \# E
- }else return 1; / G/ [' q4 G4 F
- }else return 0;
4 b: S9 ~% b- F' x4 V# Z& P - }
; o/ W, T" t, s0 z" e7 [ -
3 P1 o- @8 h: C% G1 s/ E3 x - u8 const table_week[12]={0,3,3,6,1,4,6,2,5,0,3,5};
5 l5 c% w* Y$ i7 a" @: K" g - const u8 mon_table[12]={31,28,31,30,31,30,31,31,30,31,30,31};
y/ B5 Q( i0 R3 b! Q - u8 RTC_Set(u16 syear,u8 smon,u8 sday,u8 hour,u8 min,u8 sec)# |# @( t9 K& X5 {) B2 O
- {, t: C) f4 ]3 @
- u16 t;
- [6 p. I, ^1 N - u32 seccount=0;
! ]5 O2 H% B% y- |9 ? - if(syear<1970||syear>2099)return 1;
( ?3 L! E& `# m; l - for(t=1970;t<syear;t++)
. X5 h, H3 s' g - {
8 h1 c5 u. b, B$ c4 V - if(Is_Leap_Year(t))seccount+=31622400;
4 i9 c* I; I" s1 T# { - else seccount+=31536000; ( n% i& F1 F8 ~9 w
- } }( V3 {" e6 E0 [8 C/ Q
- smon-=1;
2 W7 R' U9 S$ |: Z# N6 c - for(t=0;t<smon;t++) 2 S/ @& @! V9 I
- {9 Y6 {! u% X. Q% _+ W2 j" J
- seccount+=(u32)mon_table[t]*86400;( B! p, O( ?9 k4 [2 g/ ^
- if(Is_Leap_Year(syear)&&t==1)seccount+=86400;
4 U+ d) U( t7 d$ k3 F - }# [7 l' L4 ?6 K& B
- seccount+=(u32)(sday-1)*86400;9 _/ Y( x: x o! M6 x! C8 e
- seccount+=(u32)hour*3600;, ?$ x5 b( _1 L7 N" q, d
- seccount+=(u32)min*60;
9 z( P5 J, e* P. z6 W' Z. ? - seccount+=sec;
' {8 I' c) v3 e# v& P
" _& t k3 R" v$ w& g- RCC_APB1PeriphClockCmd(RCC_APB1Periph_PWR | RCC_APB1Periph_BKP, ENABLE); 5 w8 ]6 a. ]( S& S, ]
- PWR_BackupAccessCmd(ENABLE); // 0 [7 n0 @) V5 j2 P' A& G
- RTC_SetCounter(seccount); //
3 M8 m2 o3 z0 |* W! g% |0 h1 Z: \0 x - RTC_WaitForLastTask(); // . L+ j5 ~+ l- P( {
- return 0; % Q3 K" a5 v% l1 B: y! h+ j" F/ |" d
- }" Y6 \- l+ ?; o1 i7 a; ~
- 6 t) Q! k" W; E
- , N6 K- d) M$ B3 L) y
- u8 RTC_Alarm_Set(u16 syear,u8 smon,u8 sday,u8 hour,u8 min,u8 sec)
; P" v/ L; P/ e4 l7 \ - {
7 g% G& `& J" V1 }" h* Q - u16 t;; p# C/ p9 s+ S6 S, ~7 N
- u32 seccount=0;
8 M+ e" V, M3 t; C3 x3 A) _) m% Y* U - if(syear<1970||syear>2099)return 1;
# Y U5 v" X! F- e. E6 v - for(t=1970;t<syear;t++) + v! M0 q; h+ O, B% q, q: z
- {' L: y; Q7 |* x5 X
- if(Is_Leap_Year(t))seccount+=31622400;
# i0 O- J2 y- r1 I5 f3 M' b6 t - else seccount+=31536000;
`: _6 x* H* |, L - }
5 z; H, W7 O" z {: t" F F - smon-=1;, t- j) ?, r3 S
- for(t=0;t<smon;t++) ) M" I! t) }* ?3 a
- {6 n, [8 i3 Y; O7 Q, i3 C) _
- seccount+=(u32)mon_table[t]*86400;
" B+ Z: B. r. e% w" E - if(Is_Leap_Year(syear)&&t==1)seccount+=86400; 0 j& L2 V& t0 z# x7 u
- }3 Z! G& P2 @! B( a b$ {
- seccount+=(u32)(sday-1)*86400;
/ D2 j& T! ^" c2 ^% I% ~- l - seccount+=(u32)hour*3600;
, ?0 ^/ [/ H7 R4 u% f - seccount+=(u32)min*60; 6 c5 E3 \1 _6 I4 g' |$ `/ K! S
- seccount+=sec; 4 s8 i, e5 C3 h( F
- //ÉèÖÃʱÖÓ
! u$ h6 ~4 o F9 m8 \; ? - RCC_APB1PeriphClockCmd(RCC_APB1Periph_PWR | RCC_APB1Periph_BKP, ENABLE);
7 e2 o: J. A; ~# R% Q - PWR_BackupAccessCmd(ENABLE);
5 e6 A/ a$ p# H* F. i5 _2 H7 h; d - RTC_SetAlarm(seccount);% s) F2 K* s' ?% w" n- M* S
- RTC_WaitForLastTask();
* Y9 ~- e6 E3 {. L! _1 W -
* }* [4 r5 w! u+ V) M - return 0;
8 |0 @+ B* G1 F3 C% D2 H - }- d: c3 O! Z- m! x9 s; l
- u8 RTC_Get(void)& m! V& W' n+ k- X# `: f# `: j% J# |
- {7 a$ S2 ^; ^3 p0 N2 V- I* C0 n
- static u16 daycnt=0;4 n9 N9 B4 q: h4 l- {8 n. [
- u32 timecount=0; 3 k& i& X+ k I$ V7 X y
- u32 temp=0;! y/ U6 r, g" t8 z6 U
- u16 temp1=0; 5 v! Z3 u/ w$ A/ d6 B" O& [$ G% C
- timecount=RTC_GetCounter();
% E$ }' I: b, J' {" G0 C+ J) V - temp=timecount/86400; $ M( B, o( i: A
- if(daycnt!=temp)
" Q: q ~/ ^3 F* } V5 z& J5 a4 y- _ - {
& p! T& \. W9 C- m. Y - daycnt=temp;/ s/ S/ F7 v$ ^0 _1 o
- temp1=1970;
2 Y8 p$ s! A7 ~% ~6 A - while(temp>=365)9 V; w, j% l9 \" f
- { 2 V( x( l j8 h; \# G0 Y4 i
- if(Is_Leap_Year(temp1))
4 j1 u6 J/ x& g' ~) s - {
2 x" Q& ^- ?+ v g# |) V* R) W7 ?9 C - if(temp>=366)temp-=366;
& M$ `% b& \" }0 P- D5 e3 N - else {temp1++;break;} - }7 v* {0 ~( W- R ~: ~% S
- }
5 |3 t" }9 ~8 k9 V2 {3 O - else temp-=365; //ƽÄê
; [, {0 p8 ~* T+ O$ i% r) a - temp1++; 7 @; J) z+ ?, @/ u# A, \* f
- } . u1 `4 r; `7 q# k% ?9 z7 d5 A
- calendar.w_year=temp1;
1 S# j$ n( \2 @, R* A: D - temp1=0;
% L v1 K5 F4 I6 n6 m; g: r/ N - while(temp>=28), q- S4 B+ Y1 a7 ]. }1 d) b
- {
5 ~5 m0 b1 p8 w4 b; {' P - if(Is_Leap_Year(calendar.w_year)&&temp1==1)
$ h: Q, B. `! |/ }; G - {+ S/ J' _; \9 t5 P' H' s' l7 ]
- if(temp>=29)temp-=29;
" n6 ^- S0 P& U, z; A* O - else break; 9 L; X, U. m- C9 ^" E$ t x
- }
! }1 J% k- [) S& S - else
6 ?1 ?3 f% L! x2 O5 g9 m - {
2 Z- y2 d7 `' ?' a- R - if(temp>=mon_table[temp1])temp-=mon_table[temp1];; Y& G) r, z* D& w+ Q
- else break;1 E- P, D* o' v) J) M$ i5 J
- }
9 l6 {% R i/ C' q - temp1++;
9 U' B' f/ r9 h' C5 K! P5 D7 A( X; i! U - }
1 l' K- W5 }, ^, S - calendar.w_month=temp1+1;
! @! n1 `+ F( T! y9 u- i0 B - calendar.w_date=temp+1;
3 N4 f" H% i8 s; C' e - }
" K! U; o/ }, M- o! U9 Z1 i1 } - temp=timecount%86400; ! i- ?8 X3 O( q4 ^
- calendar.hour=temp/3600; " {1 d# U; m5 v7 T& {% z
- calendar.min=(temp%3600)/60;
8 |) h7 P, e" J( | \ - calendar.sec=(temp%3600)%60; 6 G" {" A6 Z3 @
- calendar.week=RTC_Get_Week(calendar.w_year,calendar.w_month,calendar.w_date);
: ^) O1 w+ p" r: S5 d" }. e - return 0;
0 y/ ^* ?' q+ S0 ^1 u) s - } 5 Z, H: d8 \# h
-
4 H1 l& G( j+ k. i$ r9 Y' Z1 @ - u8 RTC_Get_Week(u16 year,u8 month,u8 day)
`" f: z7 k: C- G1 v0 z d+ {- l" U - { ; g/ o/ |/ k+ t! J$ ~
- u16 temp2; j, S8 m$ l' x$ I. A+ [; p9 n( i
- u8 yearH,yearL;
5 H* i5 M2 R% N, M5 n0 Y5 R$ y9 A) {3 [ -
' n7 y; o! E9 S- N9 C/ \ - yearH=year/100; yearL=year%100; + G9 o4 @8 M. N# i Q7 S& K
- if (yearH>19)yearL+=100;6 p2 q& v0 p' r4 r9 }7 ]
- temp2=yearL+yearL/4;$ A1 S: S0 }' x' j$ L& `! c
- temp2=temp2%7;
% R9 |: j2 q% c6 v: I, j4 J - temp2=temp2+day+table_week[month-1];
4 s1 u$ T8 _' Z) f6 X5 O0 | - if (yearL%4==0&&month<3)temp2--;6 S- c$ _' h! W- j: _; j- E$ l& F
- return(temp2%7);
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复制代码
$ D6 i+ |+ `- u- a" w. {小贴士:
; F$ r: x1 e' Z: @RTC具有写保护功能 每次操作要修改掉
a. E0 M" j' e# `) d+ sif (BKP_ReadBackupRegister(BKP_DR1) != 0x5051)! k6 S! u7 x) w) P0 T
BKP_WriteBackupRegister(BKP_DR1, 0X5051);
4 p/ \* `9 z9 ]这两行代码的值 最简便就是5051和5050变换
- s6 m8 F/ t7 e' j' Y如果程序报错 很可能是以下问题9 ?2 n" p5 m2 A9 }1 B
没有添加蜂鸣器源文件和头文件1 i" w' X, H4 t# F. t- g, T2 J8 K F
main函数没有初始化蜂鸣器
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