【導(dǎo)讀】DALLAs公司推出的一種高性能、低功耗、帶RAM的實(shí)時(shí)時(shí)鐘DSl302。主要計(jì)時(shí)芯片，可以做到計(jì)時(shí)準(zhǔn)確。更重要的是，DSl302可以在很小電流的后備電源(2．5. 后備電源進(jìn)行慢速充電，可以保證后備電源基本不耗電。顯示模塊采用12864液晶，控制。的flash實(shí)現(xiàn)鬧鐘數(shù)據(jù)的掉電保存。稱之為混合信號(hào)處理器，主要是由于其針對(duì)實(shí)際應(yīng)用需求，把。數(shù)字電路和微處理器集成在一個(gè)芯片上，以提供“單片”解決方案。應(yīng)用也日趨廣泛。MSP430系列單片機(jī)針對(duì)各種不同應(yīng)用，包括一系列不同型號(hào)的器件。由時(shí)鐘系統(tǒng)產(chǎn)生CPU和各功能模塊所需的。由于系統(tǒng)運(yùn)行時(shí)使用。同，即采用不同的工作模式，芯片的功耗有明顯的差異。另外，MSP430系列單片機(jī)采用矢量中斷，支持十多個(gè)中斷源，并可以任意嵌套。喚醒只要6us，通過(guò)合理編程，既以降低系統(tǒng)功耗，又可以對(duì)外部事件請(qǐng)求作出快速響應(yīng)。蕩器在用做CPU時(shí)鐘MCLK時(shí)發(fā)生故障，DCO會(huì)自動(dòng)啟動(dòng)，以保證系統(tǒng)正常工作。BELL通過(guò)跳線帽連接到P62口，其連接原理圖如下

　　

【正文】 (LCD_BUSY())。 for(j=0。j32。j++) { if(j16){ y=j+16。 x=bit。 } else { y=j16。x=bit+8。 } WRITE_LCD_COM(0x80+y)。 while(LCD_BUSY())。 WRITE_LCD_COM(0x80+x)。 while(LCD_BUSY())。 WRITE_LCD_DATA(digit_photo[digit][j*2])。 while(LCD_BUSY())。 WRITE_LCD_DATA(digit_photo[digit][j*2+1])。 while(LCD_BUSY())。 } } /**********顯示軟件提取的字模， ************/ void WRITE_LCD_pho4(unsigned char bit,unsigned char *p) { unsigned char j。 unsigned char x,y。 WRITE_LCD_COM(0x34)。 while(LCD_BUSY())。 WRITE_LCD_COM(0x36)。 while(LCD_BUSY())。 for(j=0。j32。j++) { if(j16){ y=j+16。 x=bit。 } else { y=j16。x=bit+8。 } WRITE_LCD_COM(0x80+y)。 while(LCD_BUSY())。 WRITE_LCD_COM(0x80+x)。 while(LCD_BUSY())。 WRITE_LCD_DATA(p[j*2])。 while(LCD_BUSY())。 WRITE_LCD_DATA(p[j*2+1])。 while(LCD_BUSY())。 } WRITE_LCD_COM(0x36)。 while(LCD_BUSY())。 } /**********顯示軟件提取的字模，從左到右一次寫完 16*16 的點(diǎn)陣 ************/ void WRITE_LCD_char(unsigned char x,unsigned char y,unsigned char *chardat) { unsigned char j。 WRITE_LCD_COM(0x34)。 while(LCD_BUSY())。 WRITE_LCD_COM(0x36)。 while(LCD_BUSY())。 if(y31){ y=y32。 x=x+8。 } for(j=0。j16。j++) { WRITE_LCD_COM(0x80+y+j)。 while(LCD_BUSY())。 WRITE_LCD_COM(0x80+x)。 while(LCD_BUSY())。 WRITE_LCD_DATA(chardat[j*2])。 while(LCD_BUSY())。 WRITE_LCD_DATA(chardat[j*2+1])。 while(LCD_BUSY())。 } } 文件四 unsigned char digit_photo[12][64]={{ 0xFF,0xFF,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x03,0xC0,0x06,0x60, 0x0C,0x30,0x18,0x18,0x18,0x18,0x30,0x08,0x30,0x0C,0x30,0x0C,0x30,0x0C,0x30,0x0C, 0x30,0x0C,0x30,0x0C,0x30,0x0C,0x30,0x0C,0x30,0x0C,0x30,0x0C,0x10,0x18,0x18,0x18, 0x08,0x10,0x0C,0x30,0x07,0xE0,0x01,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0xFF,0xFF }, { 0xFF,0xFF,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0x01,0x80, 0x0F,0x80,0x01,0x80,0x01,0x80,0x01,0x80,0x01,0x80,0x01,0x80,0x01,0x80,0x01,0x80, 0x01,0x80,0x01,0x80,0x01,0x80,0x01,0x80,0x01,0x80,0x01,0x80,0x01,0x80,0x01,0x80, 0x01,0x80,0x01,0x80,0x03,0xC0,0x0F,0xF8,0x00,0x00,0x00,0x00,0x00,0x00,0xFF,0xFF }, { 0xFF,0xFF,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x03,0xC0,0x0C,0x30, 0x10,0x18,0x30,0x18,0x30,0x0C,0x38,0x0C,0x38,0x0C,0x00,0x18,0x00,0x18,0x00,0x30, 0x00,0x20,0x00,0x40,0x00,0x80,0x01,0x00,0x02,0x00,0x04,0x00,0x08,0x04,0x18,0x04, 0x30,0x0C,0x20,0x1C,0x3F,0xF8,0x3F,0xF8,0x00,0x00,0x00,0x00,0x00,0x00,0xFF,0xFF }, { 0xFF,0xFF,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x07,0xC0,0x08,0x60, 0x10,0x30,0x30,0x18,0x38,0x18,0x18,0x18,0x00,0x18,0x00,0x18,0x00,0x30,0x00,0xC0, 0x03,0xE0,0x00,0x30,0x00,0x18,0x00,0x0C,0x00,0x0C,0x00,0x0C,0x38,0x0C,0x38,0x1C, 0x30,0x18,0x10,0x30,0x0C,0xE0,0x03,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0xFF,0xFF }, { 0xFF,0xFF,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x30,0x00,0x70, 0x00,0x70,0x00,0xB0,0x01,0xB0,0x01,0x30,0x02,0x30,0x02,0x30,0x04,0x30,0x08,0x30, 0x08,0x30,0x10,0x30,0x30,0x30,0x20,0x30,0x7F,0xFE,0x00,0x30,0x00,0x30,0x00,0x30, 0x00,0x30,0x00,0x70,0x00,0x70,0x03,0xFE,0x00,0x00,0x00,0x00,0x00,0x00,0xFF,0xFF }, { 0xFF,0xFF,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x1F,0xFC,0x1F,0xF8, 0x10,0x00,0x10,0x00,0x10,0x00,0x10,0x00,0x10,0x00,0x10,0x00,0x13,0xE0,0x16,0x70, 0x18,0x18,0x10,0x18,0x00,0x0C,0x00,0x0C,0x00,0x0C,0x10,0x0C,0x38,0x0C,0x30,0x08, 0x30,0x18,0x10,0x30,0x0C,0x60,0x03,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0xFF,0xFF }, { 0xFF,0xFF,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0xE0,0x06,0x18, 0x0C,0x18,0x18,0x18,0x18,0x00,0x30,0x00,0x30,0x00,0x30,0x00,0x31,0xE0,0x32,0x38, 0x34,0x18,0x38,0x0C,0x30,0x0C,0x30,0x0C,0x30,0x0C,0x30,0x0C,0x30,0x0C,0x30,0x0C, 0x18,0x08,0x0C,0x18,0x06,0x30,0x01,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0xFF,0xFF }, { 0xFF,0xFF,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x1F,0xFC,0x1F,0xFC, 0x30,0x08,0x20,0x08,0x20,0x10,0x00,0x30,0x00,0x20,0x00,0x60,0x00,0x40,0x00,0xC0, 0x00,0x80,0x01,0x80,0x01,0x80,0x01,0x80,0x03,0x00,0x03,0x00,0x03,0x00,0x03,0x00, 0x03,0x00,0x03,0x00,0x03,0x00,0x03,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xFF,0xFF }, { 0xFF,0xFF,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x07,0xC0,0x08,0x30, 0x10,0x18,0x30,0x0C,0x30,0x0C,0x30,0x0C,0x30,0x0C,0x38,0x08,0x1E,0x10,0x0F,0xE0, 0x07,0xE0,0x08,0xF0,0x10,0x38,0x30,0x1C,0x20,0x0C,0x60,0x0C,0x60,0x0C,0x20,0x0C, 0x30,0x08,0x18,0x18,0x0C,0x70,0x03,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0xFF,0xFF }, { 0xFF,0xFF,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x07,0xC0,0x08,0x20, 0x10,0x10,0x30,0x18,0x30,0x08,0x70,0x0C,0x70,0x0C,0x70,0x0C,0x70,0x0C,0x30,0x1C, 0x30,0x3C,0x18,0x6C,0x1C,0xCC,0x07,0x0C,0x00,0x1C,0x00,0x18,0x00,0x18,0x18,0x10, 0x18,0x30,0x18,0x60,0x1C,0xC0,0x07,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xFF,0xFF }, { 0xFF,0xFF,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x00,0x01,0x80,0x03,0x80,0x03,0x80,0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x03,0x80,0x03,0x80,0x03,0x80, 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xFF,0xFF }}。//0 unsigned char photo_zhu[]={ 0x00,0x80,0x00,0x80,0x00,0xC0,0x00,0x00,0x00,0x38,0x07,0xF8,0x06,0xC0,0x00,0xF0, 0x07,0xE0,0x03,0xC0,0x00,0xC0,0x07,0xFE,0x7C,0x00,0x00,0x00,0x00,0x00,0x00,0x00 }。 //主 (0) unsigned char photo_cai[]={ 0x00,0x10,0x06,0x20,0x06,0x78,0x1F,0xC0,0x02,0xE0,0x03,0x80,0x04,0xB0,0x0C,0x60, 0x00,0xF8,0x0F,0xC0,0x13,0xA0,0x04,0x98,0x08,0x8F,0x30,0x83,0x03,0x80,0x00,0x00 }。 //菜 (1) unsigned char photo_dan[]={ 0x00,0x10,0x03,0x30,0x06,0x40,0x00,0xF0,0x0F,0xD8,0x0D,0xD0,0x04,0xF0,0x07,0x90, 0x00,0xFE,0x7F,0x80,0x40,0x80,0x00,0x80,0x00,0x80,0x00,0x80,0x00,0x80,0x00,0x00 }。 //單