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#define MAIN_Fosc 22118400L //定義主時(shí)鐘
#include "STC15Fxxxx.H"
#define DIS_DOT 0x20
#define DIS_BLACK 0x10
#define DIS_ 0x11
/****************************** 用戶定義宏 ***********************************/
#define Timer0_Reload (65536UL -(MAIN_Fosc / 1000)) //Timer 0 中斷頻率, 1000次/秒
/*****************************************************************************/
/************* 本地常量聲明 **************/
u8 code t_display[]={ //標(biāo)準(zhǔn)字庫(kù)
// 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
/************* IO口定義 **************/
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
/************* 本地變量聲明 **************/
u8 LED8[8]; //顯示緩沖
u8 display_index; //顯示位索引
u16 msecond; //1000ms計(jì)數(shù)
u8 Test_cnt; //測(cè)試用的秒計(jì)數(shù)變量
u8 SleepDelay; //喚醒后再進(jìn)入睡眠所延時(shí)的時(shí)間
void delay_ms(u8 ms);
void DisplayScan(void);
void SetWakeUpTime(u16 SetTime);
/********************** 主函數(shù) ************************/
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;
for(i=0; i<8; i++) LED8[i] = DIS_BLACK; //全部消隱
Test_cnt = 0; //秒計(jì)數(shù)范圍為0~255
SleepDelay = 0;
LED8[5] = 0;
LED8[6] = 0;
LED8[7] = Test_cnt;
EA = 1; //允許總中斷
while(1)
{
delay_ms(1); //延時(shí)1ms
DisplayScan();
if(++msecond >= 1000) //1秒到
{
msecond = 0; //清1000ms計(jì)數(shù)
Test_cnt++; //秒計(jì)數(shù)+1
LED8[5] = Test_cnt / 100;
LED8[6] = (Test_cnt % 100) / 10;
LED8[7] = Test_cnt % 10;
if(++SleepDelay >= 2) //2秒后睡眠
{
SleepDelay = 0;
P_HC595_SER = 0;
for(i=0; i<16; i++) //先關(guān)閉顯示，省電
{
P_HC595_SRCLK = 1;
P_HC595_SRCLK = 0;
}
P_HC595_RCLK = 1;
P_HC595_RCLK = 0; //鎖存輸出數(shù)據(jù)
SetWakeUpTime(2000); //2秒后醒來(lái)
PCON |= 0x02; //Sleep
_nop_();
_nop_();
_nop_();
}
}
}
}
/**********************************************/
//========================================================================
// 函數(shù): void SetWakeUpTime(u16 SetTime)
// 描述: 喚醒定時(shí)器設(shè)置時(shí)間值函數(shù)。
// 參數(shù): SetTime: 要設(shè)置的時(shí)間值(睡眠的時(shí)間), 單位為ms.
// 返回: none.
// 版本: VER1.0
// 日期: 2014-7-15
// 備注:
//========================================================================
void SetWakeUpTime(u16 SetTime)
{
SetTime = (u16)((32768UL * (u32)SetTime) / 16000); //重裝值 = Fwkt/16 * SetTime/1000 = Fwkt * SetTime / 16000
if(SetTime > 0) SetTime--;
WKTCL = (u8)SetTime;
WKTCH = (u8)(SetTime >> 8) | 0x80;
}
//========================================================================
// 函數(shù): void delay_ms(unsigned char ms)
// 描述: 延時(shí)函數(shù)。
// 參數(shù): ms,要延時(shí)的ms數(shù), 這里只支持1~255ms. 自動(dòng)適應(yīng)主時(shí)鐘.
// 返回: none.
// 版本: VER1.0
// 日期: 2013-4-1
// 備注:
//========================================================================
void delay_ms(u8 ms)
{
u16 i;
do{
i = MAIN_Fosc / 13000;
while(--i) ; //14T per loop
}while(--ms);
}
/**************** 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
}
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