|
|
- #define MAIN_Fosc 22118400L //定義主時(shí)鐘
- #include "STC15Fxxxx.H"
- #define Timer0_Reload (65536UL -(MAIN_Fosc / 1000)) //Timer 0 中斷頻率, 1000次/秒
- #define DIS_DOT 0x20
- #define DIS_BLACK 0x10
- #define DIS_ 0x11
- u8 code t_display[]={ //標(biāo)準(zhǔn)字庫
- // 0 1 2 3 4 5 6 7 8 9 A B C D E F
- 0x3F,0x06,0x5B,0x4F,0x66,0x6D,0x7D,0x07,0x7F,0x6F,0x77,0x7C,0x39,0x5E,0x79,0x71,
- //black - H J K L N o P U t G Q r M y
- 0x00,0x40,0x76,0x1E,0x70,0x38,0x37,0x5C,0x73,0x3E,0x78,0x3d,0x67,0x50,0x37,0x6e,
- 0xBF,0x86,0xDB,0xCF,0xE6,0xED,0xFD,0x87,0xFF,0xEF,0x46}; //0. 1. 2. 3. 4. 5. 6. 7. 8. 9. -1
- u8 code T_COM[]={0x01,0x02,0x04,0x08,0x10,0x20,0x40,0x80}; //位碼
- sbit P_HC595_SER = P4^0; //pin 14 SER data input
- sbit P_HC595_RCLK = P5^4; //pin 12 RCLk store (latch) clock
- sbit P_HC595_SRCLK = P4^3; //pin 11 SRCLK Shift data clock
- u8 LED8[8]; //顯示緩沖
- u8 display_index; //顯示位索引
- bit B_1ms; //1ms標(biāo)志
- u8 KeyCode; //給用戶使用的鍵碼, 1~16有效
- u8 cnt10ms;
- u8 IO_KeyState, IO_KeyState1, IO_KeyHoldCnt; //行列鍵盤變量
- u8 cnt50ms;
- u8 hour,minute,second; //RTC變量
- u16 msecond;
- void IO_KeyScan(void); //50ms call
- /********************** 顯示時(shí)鐘函數(shù) ************************/
- void DisplayRTC(void)
- {
- if(hour >= 10) LED8[0] = hour / 10;
- else LED8[0] = DIS_BLACK;
- LED8[1] = hour % 10;
- LED8[2] = minute / 10;
- LED8[3] = minute % 10;
- if(msecond >= 500) LED8[1] |= DIS_DOT; //小時(shí)后的小數(shù)點(diǎn)做秒閃
- }
- /********************** RTC演示函數(shù) ************************/
- void RTC(void)
- {
- if(++second >= 60)
- {
- second = 0;
- if(++minute >= 60)
- {
- minute = 0;
- if(++hour >= 24) hour = 0;
- }
- }
- }
- /**********************************************/
- void main(void)
- {
- u8 i;
-
- P0M1 = 0; P0M0 = 0; //設(shè)置為準(zhǔn)雙向口
- P1M1 = 0; P1M0 = 0; //設(shè)置為準(zhǔn)雙向口
- P2M1 = 0; P2M0 = 0; //設(shè)置為準(zhǔn)雙向口
- P3M1 = 0; P3M0 = 0; //設(shè)置為準(zhǔn)雙向口
- P4M1 = 0; P4M0 = 0; //設(shè)置為準(zhǔn)雙向口
- P5M1 = 0; P5M0 = 0; //設(shè)置為準(zhǔn)雙向口
- P6M1 = 0; P6M0 = 0; //設(shè)置為準(zhǔn)雙向口
- P7M1 = 0; P7M0 = 0; //設(shè)置為準(zhǔn)雙向口
- display_index = 0;
-
- AUXR = 0x80; //Timer0 set as 1T, 16 bits timer auto-reload,
- TH0 = (u8)(Timer0_Reload / 256);
- TL0 = (u8)(Timer0_Reload % 256);
- ET0 = 1; //Timer0 interrupt enable
- TR0 = 1; //Tiner0 run
- EA = 1; //打開總中斷
-
- for(i=0; i<8; i++) LED8[i] = 0x10; //上電消隱
- hour = 12; //初始化時(shí)間值
- minute = 0;
- second = 0;
- DisplayRTC();
- KeyCode = 0; //給用戶使用的鍵碼, 1~16有效
- cnt10ms = 0;
- IO_KeyState = 0;
- IO_KeyState1 = 0;
- IO_KeyHoldCnt = 0;
- cnt50ms = 0;
-
- while(1)
- {
- if(B_1ms) //1ms到
- {
- B_1ms = 0;
- if(++msecond >= 1000) //1秒到
- {
- msecond = 0;
- RTC();
- DisplayRTC();
- }
- if(msecond == 500) DisplayRTC(); //小時(shí)后的小數(shù)點(diǎn)做秒閃
- if(++cnt50ms >= 50) //50ms掃描一次行列鍵盤
- {
- cnt50ms = 0;
- IO_KeyScan();
- }
-
- if(KeyCode > 0) //有鍵按下
- {
- LED8[6] = KeyCode / 10; //顯示鍵碼
- LED8[7] = KeyCode % 10; //顯示鍵碼
- if(KeyCode == 17) //hour +1
- {
- if(++hour >= 24) hour = 0;
- DisplayRTC();
- }
- if(KeyCode == 18) //hour -1
- {
- if(--hour >= 24) hour = 23;
- DisplayRTC();
- }
- if(KeyCode == 19) //minute +1
- {
- second = 0;
- if(++minute >= 60) minute = 0;
- DisplayRTC();
- }
- if(KeyCode == 20) //minute -1
- {
- second = 0;
- if(--minute >= 60) minute = 59;
- DisplayRTC();
- }
- KeyCode = 0;
- }
- }
- }
- }
- /**********************************************/
-
- /*****************************************************
- 行列鍵掃描程序
- 使用XY查找4x4鍵的方法，只能單鍵，速度快
- Y P04 P05 P06 P07
- | | | |
- X | | | |
- P00 ---- K00 ---- K01 ---- K02 ---- K03 ----
- | | | |
- P01 ---- K04 ---- K05 ---- K06 ---- K07 ----
- | | | |
- P02 ---- K08 ---- K09 ---- K10 ---- K11 ----
- | | | |
- P03 ---- K12 ---- K13 ---- K14 ---- K15 ----
- | | | |
- ******************************************************/
- u8 code T_KeyTable[16] = {0,1,2,0,3,0,0,0,4,0,0,0,0,0,0,0};
- void IO_KeyDelay(void)
- {
- u8 i;
- i = 60;
- while(--i) ;
- }
- void IO_KeyScan(void) //50ms call
- {
- u8 j;
- j = IO_KeyState1; //保存上一次狀態(tài)
- P0 = 0xf0; //X低，讀Y
- IO_KeyDelay();
- IO_KeyState1 = P0 & 0xf0;
- P0 = 0x0f; //Y低，讀X
- IO_KeyDelay();
- IO_KeyState1 |= (P0 & 0x0f);
- IO_KeyState1 ^= 0xff; //取反
-
- if(j == IO_KeyState1) //連續(xù)兩次讀相等
- {
- j = IO_KeyState;
- IO_KeyState = IO_KeyState1;
- if(IO_KeyState != 0) //有鍵按下
- {
- F0 = 0;
- if(j == 0) F0 = 1; //第一次按下
- else if(j == IO_KeyState)
- {
- if(++IO_KeyHoldCnt >= 20) //1秒后重鍵
- {
- IO_KeyHoldCnt = 18;
- F0 = 1;
- }
- }
- if(F0)
- {
- j = T_KeyTable[IO_KeyState >> 4];
- if((j != 0) && (T_KeyTable[IO_KeyState& 0x0f] != 0))
- KeyCode = (j - 1) * 4 + T_KeyTable[IO_KeyState & 0x0f] + 16; //計(jì)算鍵碼，17~32
- }
- }
- else IO_KeyHoldCnt = 0;
- }
- P0 = 0xff;
- }
- /**************** 向HC595發(fā)送一個(gè)字節(jié)函數(shù) ******************/
- void Send_595(u8 dat)
- {
- u8 i;
- for(i=0; i<8; i++)
- {
- dat <<= 1;
- P_HC595_SER = CY;
- P_HC595_SRCLK = 1;
- P_HC595_SRCLK = 0;
- }
- }
- /********************** 顯示掃描函數(shù) ************************/
- void DisplayScan(void)
- {
- Send_595(~T_COM[display_index]); //輸出位碼
- Send_595(t_display[LED8[display_index]]); //輸出段碼
- P_HC595_RCLK = 1;
- P_HC595_RCLK = 0; //鎖存輸出數(shù)據(jù)
- if(++display_index >= 8) display_index = 0; //8位結(jié)束回0
- }
- /********************** Timer0 1ms中斷函數(shù) ************************/
- void timer0 (void) interrupt TIMER0_VECTOR
- {
- DisplayScan(); //1ms掃描顯示一位
- B_1ms = 1; //1ms標(biāo)志
- }
|
評(píng)分
-
查看全部評(píng)分
|
QQ好友和群
QQ空間
騰訊微博
騰訊朋友
收藏
淘帖
頂
踩
