<pre id="oi2u6"></pre>
LTC®3838 是一款雙輸出、兩相降壓型控制器，其采用一種受控恒定導通時間、谷值電流模式架構，可提供快速負載階躍響應、高開關頻率和低占空比能力。開關頻率范圍為 200kHz 至 2mhz，其鎖相環可在穩態操作期間保持固定頻率，并可同步至一個外部時鐘
上傳時間： 2013-11-09
上傳用戶：uuuuuuu
1.2mhz 2A Synchronous Step-Down converter
上傳時間： 2013-11-01
上傳用戶：qingzhuhu
Abstract: This application note illustrates an intermediate 8V switching power supply for an automotive radio and infotainment system.The design withstands the complete automotive input voltage range (including cold crank and load dump conditions), assuring a stable8V supply for common subsystems such as a CD driver, LCDs, and a radio module in modern infotainment systems. To avoiddisturbance in the AM and FM bands, the switching power supply runs at a fixed frequency of 2mhz, enabling an ideal solution forradio systems.
上傳時間： 2013-11-20
上傳用戶：feitian920
帶中文字庫的128X64是一種具有4位/8位并行、2線或3線串行多種接口方式，內部含有國標一級、二級簡體中文字庫的點陣圖形液晶顯示模塊；其顯示分辨率為128×64, 內置8192個16*16點漢字，和128個16*8點ASCII字符集.利用該模塊靈活的接口方式和簡單、方便的操作指令，可構成全中文人機交互圖形界面。可以顯示8×4行16×16點陣的漢字. 也可完成圖形顯示.低電壓低功耗是其又一顯著特點。由該模塊構成的液晶顯示方案與同類型的圖形點陣液晶顯示模塊相比，不論硬件電路結構或顯示程序都要簡潔得多，且該模塊的價格也略低于相同點陣的圖形液晶模塊。 基本特性: 低電源電壓（VDD:+3.0--+5.5V） 顯示分辨率:128×64點 內置漢字字庫，提供8192個16×16點陣漢字(簡繁體可選) 內置 128個16×8點陣字符 2mhz時鐘頻率 顯示方式：STN、半透、正顯 驅動方式：1/32DUTY，1/5BIAS 視角方向：6點 背光方式：側部高亮白色LED，功耗僅為普通LED的1/5—1/10 通訊方式：串行、并口可選 內置DC-DC轉換電路，無需外加負壓 無需片選信號，簡化軟件設計 工作溫度: 0℃ - +55℃ ,存儲溫度: -20℃ - +60℃ 12864（帶字庫漢字顯示演示程序） ;*************************************************************************** ;* sxj1974@163.com (51c51 test web) www.8951.com * ;* Create by :石學軍 www.51c51.com 更多例程請登陸網站 * ;*************************************************************************** RS EQU P2.0 RW EQU P2.1 E EQU P2.2 PSB EQU P2.3 RST EQU P2.5 ;----------------------------------------------- LCD_X EQU 30H LCD_Y EQU 31H COUNT EQU 32H COUNT1 EQU 33H COUNT2 EQU 34H COUNT3 EQU 35H ;----------------------------------------------- LCD_DATA EQU 36H LCD_DATA1 EQU 37H LCD_DATA2 EQU 38H STORE EQU 39H ;----------------------------------------------- ORG 0000H LJMP MAIN ORG 0100H ;----------------------------------------------- MAIN: MOV SP,#5FH CLR RST ;復位 LCALL DELAY4 SETB RST NOP SETB PSB ;通訊方式為8位數據并口 ;********************初始化********************** LGS0: MOV A,#34H ;34H--擴充指令操作 LCALL SEND_I MOV A,#30H ;30H--基本指令操作 LCALL SEND_I MOV A,#01H ;清除顯示 LCALL SEND_I MOV A,#06H ;指定在資料寫入或讀取時，光標的移動方向 LCALL SEND_I ;DDRAM 的地址計數器(AC)加1 MOV A,#0CH ;開顯示,關光標,不閃爍 LCALL SEND_I ;=============================================== TU_PLAY1: MOV DPTR,#TU_TAB1 ;顯示圖形 LCALL PHO_DISP LCALL DELAY3 ;================================================= ;;顯示漢字和字符 ;加入80ms的延時，使你能夠看清楚顯示的過程 ;根據漢字顯示坐標分段寫入（順序寫入） ;================================================= HAN_WR2: LCALL CLEAR_P HAN_WR2A: MOV DPTR,#TAB1A ;顯示漢字和字符 MOV COUNT,#10H ;地址計數器設為16。 MOV A,#80H ;第一行起始地址 LCALL SEND_I LCALL QUSHU HAN_WR2B: MOV DPTR,#TAB1B ;顯示漢字和字符 MOV COUNT,#10H ;地址計數器設為16。 MOV A,#90H ;第二行起始地址 LCALL SEND_I LCALL QUSHU HAN_WR2C: MOV DPTR,#TAB1C ;顯示漢字和字符 MOV COUNT,#10H ;地址計數器設為16。 MOV A,#88H ;第三行起始地址 LCALL SEND_I LCALL QUSHU HAN_WR2D: MOV DPTR,#TAB1D ;顯示漢字和字符 MOV COUNT,#10H ;地址計數器設為16。 MOV A,#98H ;第四行起始地址 LCALL SEND_I LCALL QUSHU LCALL DELAY3 LCALL FLASH LCALL CLEAR_P JMP TU_PLAY2 ;---------------------------------------------- ;TU_PLAY1: MOV DPTR,#TU_TAB1 ;顯示圖形 LCALL PHO_DISP LCALL DELAY3 ;---------------------------------------------- TU_PLAY2: MOV DPTR,#TU_TAB2 ;顯示圖形 LCALL PHO_DISP LCALL DELAY3 ;---------------------------------------------- TU_PLAY3: MOV DPTR,#TU_TAB4 ;顯示圖形 LCALL PHO_DISP LCALL DELAY3 ;----------------------------------------------- ;顯示點陣 ;----------------------------------------------- LATPLAY1: MOV A,#01H ;清屏 LCALL SEND_I MOV LCD_DATA1,#0CCH ;顯示點陣 MOV LCD_DATA2,#0CCH LCALL LAT_DISP LCALL DELAY3 LCALL CLEAR_P KU_PLAY2: LJMP TU_PLAY1 ;=============================================== ;全屏顯示圖形子程序 ;=============================================== PHO_DISP: MOV COUNT3,#02H MOV LCD_X,#80H PHO_DISP1: MOV LCD_Y,#80H MOV COUNT2,#20H PHO_DISP2: MOV COUNT1,#10H LCALL WR_ZB PHO_DISP3: CLR A MOVC A,@A+DPTR LCALL SEND_D INC DPTR DJNZ COUNT1,PHO_DISP3 INC LCD_Y DJNZ COUNT2,PHO_DISP2 MOV LCD_X,#88H DJNZ COUNT3,PHO_DISP1 MOV A,#36H LCALL SEND_I MOV A,#30H LCALL SEND_I RET ;---------------------------------------------- CLRRAM: MOV LCD_DATA1,#00H ;GDRAM寫0子程序 MOV LCD_DATA2,#00H LCALL LAT_DISP RET ;============================================== ;顯示點陣子程序 ;============================================== LAT_DISP: MOV COUNT3,#02H MOV LCD_X,#80H LAT_DISP1: MOV LCD_Y,#80H CLR F0 MOV COUNT2,#20H LAT_DISP2: MOV COUNT1,#10H LCALL WR_ZB LAT_DISP3: JB F0,LAT_DISP32 MOV LCD_DATA,LCD_DATA1 AJMP LAT_DISP31 LAT_DISP32: MOV LCD_DATA,LCD_DATA2 LAT_DISP31: MOV A,LCD_DATA LCALL SEND_D DJNZ COUNT1,LAT_DISP31 INC LCD_Y CPL F0 DJNZ COUNT2,LAT_DISP2 MOV LCD_X,#88H DJNZ COUNT3,LAT_DISP1 MOV A,#36H LCALL SEND_I MOV A,#30H LCALL SEND_I RET ;--------------------------------------------- WR_ZB: MOV A,#34H LCALL SEND_I MOV A,LCD_Y LCALL SEND_I MOV A,LCD_X LCALL SEND_I MOV A,#30H LCALL SEND_I RET ;=============================================== FLASH: MOV A,#08H ;關閉顯示 LCALL SEND_I LCALL DELAY5 MOV A,#0CH ;開顯示,關光標,不閃爍 LCALL SEND_I LCALL DELAY5 MOV A,#08H ;關閉顯示 LCALL SEND_I LCALL DELAY5 MOV A,#0CH ;開顯示,關光標,不閃爍 LCALL SEND_I LCALL DELAY5 MOV A,#08H ;關閉顯示 LCALL SEND_I LCALL DELAY5 RET ;================================================== ;清屏 ;================================================== CLEAR_P: MOV A,#01H ;清屏 LCALL SEND_I MOV A,#34H LCALL SEND_I MOV A,#30H LCALL SEND_I RET ;================================================== ;查表取數據送顯示 ;================================================== QUSHU: CLR A MOVC A,@A+DPTR ;查表取數據 LCALL SEND_D ;送顯示 INC DPTR LCALL DELAY4 ;延時80ms, DJNZ COUNT,QUSHU RET ;=============================================== ;寫數據子程序 ;RS=1,RW=0,E=高脈沖,D0-D7=數據 ;=============================================== SEND_D: LCALL CHK_BUSY ;寫數據子程序 SETB RS CLR RW MOV P0,A SETB E NOP NOP CLR E RET ;=============================================== ;寫指令子程序 ;RS=0,RW=0,E=高脈沖,D0-D7=指令碼 ;=============================================== SEND_I: LCALL CHK_BUSY CLR RS CLR RW MOV P0,A SETB E NOP NOP CLR E RET ;================================================ ;讀數據子程序 ;RS=1,RW=1,E=H,D0-D7=數據 ;================================================ READ_D: LCALL CHK_BUSY ;讀數據子程序 SETB RS SETB RW SETB E NOP MOV A,P0 CLR E MOV STORE,A RET ;================================================ ;;測忙碌子程序 ;RS=0,RW=1,E=H,D0-D7=狀態字 ;================================================ CHK_BUSY: MOV P0,#0FFH ;測忙碌子程序 CLR RS SETB RW SETB E JB P0.7,$ CLR E RET ;================================================ ;延時子程序 DELAY3: MOV R5,#16H DEL31: MOV R6,#100 DEL32: MOV R7,#0FFH DEL33: DJNZ R7,DEL33 DJNZ R6,DEL32 DJNZ R5,DEL31 RET DELAY2: MOV R6,#0CH DEL21: MOV R7,#18H DEL22: DJNZ R7,DEL22 DJNZ R6,DEL21 RET DELAY1: MOV R6,#06H DEL11: MOV R7,#08H DEL12: DJNZ R7,DEL12 DJNZ R6,DEL11 RET DELAY4: MOV R6,#100 DEL41: MOV R7,#200 DEL42: DJNZ R7,DEL42 DJNZ R6,DEL41 RET DELAY5: MOV R5,#05H DEL51: MOV R6,#100 DEL52: MOV R7,#0FFH DEL53: DJNZ R7,DEL53 DJNZ R6,DEL52 DJNZ R5,DEL51 RET ;*********************************************** TAB1: TAB1A: DB ' 51單片機學習網（深圳學林電子有限公司） ' ;顯示在第一行 TAB1C: DB '自學單片機第一站' ;顯示在第三行 TAB1B: DB ' WWW.8951.COM ' ;顯示在第二行 TAB1D: DB 'TEL 755-89956892' ;顯示在第四行 ;*-------------------------------------------------------------------- * ;* Bitmap點陣數據表 * ;* 圖片: E:\圖形8.bmp,橫向取模左高位,數據排列:從左到右從上到下 * ;* 圖片尺寸: 128 * 64 * ;*-------------------------------------------------------------------- * TU_TAB1: ; 數據表 db 0FFh,0FFh,0FFh,0FFh,0FFh,0FFh,0FFh,0FFh,0FFh,0FFh,0FFh,0FFh,0FFh,0FFh,0FFh,0FFh db 80h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 01h db 80h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 01h db 80h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 01h db 80h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 01h db 80h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 01h db 80h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 01h db 80h, 00h, 00h, 00h, 00h, 3Ch, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 01h db 80h, 00h, 00h, 00h, 00h, 7Fh, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 01h db 80h, 00h, 00h, 00h, 00h,0FFh,0C0h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 01h db 80h, 00h, 00h, 00h, 01h,0BFh,0F8h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 01h db 80h, 00h, 00h, 00h, 01h,0FFh,0DCh, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 01h db 80h, 00h, 00h, 00h, 01h, 1Fh,0FEh, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 01h db 80h, 00h, 00h, 00h, 01h,0DFh,0FFh, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 01h db 80h, 00h, 00h, 00h, 00h,0FFh,0FFh, 19h, 8Ch, 03h, 06h, 00h, 18h, 00h,0FFh,0E1h db 80h, 00h, 00h, 00h, 00h, 3Fh,0FFh, 0Ch,0CCh, 03h, 06h, 00h, 18h, 00h,0FFh,0E1h db 80h, 00h, 00h, 00h, 00h, 7Fh,0FFh, 04h, 58h, 03h, 06h, 01h,0FFh,0C0h, 00h,0C1h db 80h, 00h, 00h, 00h, 00h, 7Fh,0DAh, 3Fh,0FEh, 0Fh,0DFh,0C1h,0FFh,0C0h, 01h, 81h db 80h, 00h, 00h, 00h, 00h, 7Fh, 8Ch, 3Fh,0FEh, 0Fh,0DFh,0C1h, 98h,0C0h, 07h, 01h db 80h, 00h, 00h, 00h, 00h, 7Fh,0B8h, 30h, 06h, 03h, 06h, 01h, 98h,0C0h, 06h, 01h db 80h, 00h, 00h, 00h, 00h,0FEh,0C0h, 0Fh,0F8h, 03h, 8Eh, 01h,0FFh,0C3h,0FFh,0F9h db 80h, 00h, 00h, 00h, 00h, 7Eh, 00h, 0Fh,0F8h, 07h,0CFh, 01h, 98h,0C3h,0FFh,0F9h db 80h, 00h, 00h, 00h, 00h, 7Fh, 00h, 00h, 60h, 07h, 5Fh, 81h, 98h,0C0h, 06h, 01h db 80h, 00h, 00h, 00h, 00h, 7Fh, 80h, 3Fh,0FEh, 0Fh, 36h,0C1h,0FFh,0C0h, 06h, 01h db 80h, 00h, 00h, 00h, 00h, 1Fh, 80h,0BFh,0FEh, 0Bh, 36h, 61h,0FFh,0C0h, 06h, 01h db 80h, 00h, 00h, 00h, 00h, 1Fh,0C7h, 00h,0C0h, 03h, 66h, 21h, 98h, 30h, 06h, 01h db 80h, 00h, 00h, 00h, 15h, 5Fh,0C7h, 00h,0C0h, 03h, 06h, 00h, 18h, 30h, 06h, 01h db 80h, 00h, 02h,0E0h, 06h, 7Fh,0CEh, 03h,0C0h, 03h, 06h, 00h, 1Fh,0F0h, 1Eh, 01h db 80h, 00h, 04h, 54h, 4Fh,0FFh,0FCh, 01h, 80h, 03h, 06h, 00h, 0Fh,0E0h, 0Ch, 01h db 80h, 00h, 03h,0FDh, 3Fh,0FFh,0D9h,0C0h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 01h db 80h, 00h, 1Dh,0FFh,0FFh,0FFh, 87h, 80h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 01h db 80h, 00h, 2Bh,0FFh,0F8h, 7Fh, 06h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 01h db 80h, 00h, 3Fh,0BFh,0F8h, 09h, 0Fh, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 01h db 80h, 00h, 1Fh, 9Fh,0F0h, 00h,0BCh, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 01h db 9Dh,0FEh, 1Fh, 8Fh,0F0h, 00h,0F8h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 01h db 9Fh,0FCh, 17h, 8Fh,0F0h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 01h db 81h,0FFh,0CFh, 9Fh,0E0h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 01h db 82h,0FFh,0FFh, 9Ch, 80h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 01h db 81h, 7Fh,0FFh,0FCh, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 01h db 80h, 6Fh,0FEh, 30h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 01h db 80h, 03h,0FCh, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 01h db 80h, 00h, 34h, 14h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 01h db 80h, 00h, 0Eh, 18h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 01h db 80h, 00h, 02h, 30h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 01h db 80h, 00h, 01h,0E0h, 00h, 00h, 7Fh, 04h, 00h, 3Fh, 82h, 00h, 00h, 00h, 00h, 01h db 80h, 00h, 00h, 00h, 00h, 00h, 7Fh, 0Ch, 00h, 3Fh, 86h, 00h, 00h, 00h, 00h, 01h db 80h, 00h, 00h, 00h, 00h, 00h, 7Fh, 1Ch, 00h, 3Fh, 8Eh, 00h, 00h, 00h, 00h, 01h db 83h,0BBh, 9Dh,0DCh,0EEh,0E0h, 70h, 7Ch, 38h, 38h, 3Eh, 00h,0E0h, 38h, 3Bh, 31h db 83h,0BBh, 9Dh,0DCh,0EEh,0E0h, 70h, 7Ch, 3Ch, 38h, 3Eh, 00h,0F0h, 7Ch, 3Fh,0F9h db 83h,0BBh, 9Dh,0DCh,0EEh,0E0h, 76h, 1Ch, 7Eh, 3Bh, 0Eh, 01h,0F8h,0FEh, 3Fh,0F9h db 83h,0BBh, 9Dh,0DCh,0EEh,0E0h, 7Fh, 1Ch, 76h, 3Fh, 8Eh, 01h,0D8h,0EEh, 3Bh,0B9h db 83h,0BBh, 9Dh,0DCh,0EEh,0E0h, 7Fh, 1Ch, 76h, 3Fh, 8Eh, 01h,0D8h,0EEh, 3Bh,0B9h db 83h,0BBh, 9Dh,0DCh,0EEh,0E0h, 77h, 1Ch, 76h, 3Bh, 8Eh, 01h,0D8h,0EEh, 3Bh,0B9h db 81h,0BBh, 0Dh,0D8h, 6Eh,0C0h, 07h, 1Ch, 70h, 03h, 8Eh, 01h,0C0h,0EEh, 3Bh,0B9h db 81h,0ABh, 0Dh, 58h, 6Ah,0C0h, 07h, 1Ch, 70h, 03h, 8Eh, 01h,0C0h,0EEh, 3Bh,0B9h db 81h,0ABh, 0Dh, 58h, 6Ah,0C0h, 77h, 1Ch, 70h, 3Bh, 8Eh, 01h,0C0h,0EEh, 3Bh,0B9h db 81h,0ABh, 0Dh, 58h, 6Ah,0C0h, 77h, 1Ch, 76h, 3Bh, 8Eh, 01h,0D8h,0EEh, 3Bh,0B9h db 81h,0EFh, 0Fh, 78h, 7Bh,0C0h, 77h, 1Ch, 76h, 3Bh, 8Eh, 01h,0D8h,0EEh, 3Bh,0B9h db 81h,0EFh, 0Fh, 78h, 7Bh,0DCh, 77h, 1Ch, 76h, 3Bh, 8Eh, 39h,0D8h,0EEh, 3Bh,0B9h db 81h,0EFh, 0Fh, 78h, 7Bh,0DCh, 7Fh, 1Ch, 7Eh, 3Fh, 8Eh, 39h,0F8h,0FEh, 3Bh,0B9h db 81h,0EFh, 0Fh, 78h, 7Bh,0DCh, 3Eh, 1Ch, 3Ch, 1Fh, 0Eh, 38h,0F0h, 7Ch, 3Bh,0B9h db 81h,0EFh, 0Fh, 78h, 7Bh,0DCh, 1Ch, 1Ch, 3Ch, 0Eh, 0Eh, 38h,0F0h, 78h, 3Bh,0B9h db 80h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 01h db0FFh,0FFh,0FFh,0FFh,0FFh,0FFh,0FFh,0FFh,0FFh,0FFh,0FFh,0FFh,0FFh,0FFh,0FFh,0FFh ;*-------------------------------------------------------------------- * ;* Bitmap點陣數據表 * ;* 圖片: E:\圖形12.bmp,橫向取模左高位,數據排列:從左到右從上到下 * ;* 圖片尺寸: 128 * 64 * ;*-------------------------------------------------------------------- * TU_TAB2: ; 數據表 db 40h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 03h, 65h,0E8h, 80h, 00h, 01h db 9Ah,0D6h,0B4h, 42h, 00h, 00h, 00h, 00h, 00h, 00h, 34h,0DAh,0D0h, 00h, 00h, 01h db0A4h, 00h, 02h, 10h, 6Bh, 30h, 00h, 00h, 00h, 00h, 8Bh,0FFh, 30h, 00h, 00h, 01h db 42h,0D6h,0B0h, 42h, 80h, 00h, 00h, 00h, 00h, 16h, 77h,0FEh,0C0h, 00h, 00h, 01h db 42h,0D6h,0B0h, 42h, 80h, 00h, 00h, 00h, 00h, 16h, 77h,0FEh,0C0h, 00h, 00h, 01h db0B9h, 20h, 04h, 00h, 00h, 02h, 10h, 00h, 00h, 00h,0BCh,0BCh, 00h, 00h, 00h, 01h db 46h,0D6h,0B1h,0ACh, 6Bh, 30h, 00h, 00h, 02h, 29h,0CBh, 40h, 00h, 00h, 00h, 01h db0FFh,0F9h, 04h, 01h, 00h, 00h, 00h, 00h, 01h, 16h,0B4h,0A0h, 00h, 00h, 00h, 01h db0FFh,0FFh,0F2h, 50h, 00h, 40h, 00h, 00h, 00h, 29h, 4Bh, 00h, 00h, 00h, 00h, 01h db0FFh,0FFh,0F2h, 50h, 00h, 40h, 00h, 00h, 00h, 29h, 4Bh, 00h, 00h, 00h, 00h, 01h db0FFh,0FFh,0BDh, 82h, 94h, 00h, 40h, 00h, 00h,0C9h, 30h, 02h, 00h, 00h, 00h, 01h db0FFh,0FFh,0FBh,0B0h, 00h, 08h, 00h, 00h, 05h, 16h, 44h, 40h, 00h, 00h, 00h, 01h db0FFh,0FFh,0FFh,0EFh, 90h, 40h, 00h, 00h, 00h, 21h, 00h, 04h,0C8h, 30h, 00h, 01h db0A5h,0FFh,0FFh,0FDh, 6Bh, 00h, 00h, 00h, 00h,0C8h, 00h, 99h, 16h,0FAh, 40h, 01h db0A5h,0FFh,0FFh,0FDh, 6Bh, 00h, 00h, 00h, 00h,0C8h, 00h, 99h, 16h,0FAh, 40h, 01h db 82h, 2Fh,0FFh,0FFh,0E8h, 84h, 00h, 00h, 00h, 00h, 08h, 00h,0DFh,0FFh,0ECh, 01h db 24h,0C1h, 7Fh,0FFh,0F4h, 30h, 00h, 00h, 00h, 00h, 00h,0A7h,0FFh,0FFh,0FCh, 01h db 42h, 28h, 05h,0BFh,0FBh, 80h, 00h, 00h, 00h, 00h, 04h, 1Bh,0FFh,0FFh,0FFh, 81h db 98h,0C1h, 4Ah, 53h,0ECh, 48h, 00h, 00h, 00h, 00h, 40h, 7Fh,0FFh,0FFh,0FFh,0E1h db 98h,0C1h, 4Ah, 53h,0ECh, 48h, 00h, 00h, 00h, 00h, 40h, 7Fh,0FFh,0FFh,0FFh,0E1h db 42h, 28h, 00h, 0Ch, 77h, 82h, 00h, 00h, 00h, 00h, 33h,0BFh,0FFh,0FFh,0FFh, 89h db 18h,0C1h, 4Ah, 51h, 9Bh, 74h, 00h, 00h, 00h, 00h, 04h,0FFh, 3Fh,0FFh,0DFh,0F1h db0C2h, 28h, 00h, 0Ch, 04h, 80h, 00h, 00h, 00h, 00h, 40h,0FEh, 1Fh,0F9h,0C3h,0F9h db 1Ah,0D6h,0B5h,0A1h, 6Bh, 75h, 80h, 00h, 00h, 00h, 8Fh,0FCh, 3Fh,0F2h, 0Fh, 1Fh db 1Ah,0D6h,0B5h,0A1h, 6Bh, 75h, 80h, 00h, 00h, 00h, 8Fh,0FCh, 3Fh,0F2h, 0Fh, 1Fh db0C5h, 29h, 79h, 8Ch, 00h, 88h, 00h, 00h, 00h, 00h, 03h,0F8h, 1Fh,0C8h, 52h, 81h db 22h,0FFh,0FFh,0F2h, 6Bh, 35h, 80h, 00h, 00h, 00h, 37h,0C2h, 3Fh,0FBh,0FCh, 09h db 9Ah,0FFh,0FFh,0FFh, 00h, 48h, 00h, 00h, 00h, 00h, 07h,0D8h, 1Fh,0FFh,0E3h, 81h db 9Ah,0FFh,0FFh,0FFh, 00h, 48h, 00h, 00h, 00h, 00h, 07h,0D8h, 1Fh,0FFh,0E3h, 81h db 47h,0FFh,0FFh,0FFh,0F3h, 35h, 80h, 00h, 00h, 00h, 8Fh,0C1h, 0Fh,0FFh,0ACh, 01h db0B9h,0FFh,0FFh,0FFh,0FCh, 4Ah, 20h, 00h, 00h, 00h, 0Fh,0A4h, 07h,0FEh, 40h, 01h db 5Fh,0FFh,0C7h,0FFh,0FCh,0B5h, 80h, 00h, 00h, 00h, 4Fh,0DAh,0FFh,0F8h, 00h, 01h db0A7h,0FFh,0B7h,0FFh,0FFh, 8Ah, 20h, 00h, 00h, 00h, 0Fh,0FFh,0EFh, 40h, 00h, 01h db0A7h,0FFh,0B7h,0FFh,0FFh, 8Ah, 20h, 00h, 00h, 00h, 0Fh,0FFh,0EFh, 40h, 00h, 01h db 7Fh,0FFh, 47h,0FDh, 7Fh,0C5h, 80h, 00h, 00h, 00h, 3Fh,0DAh,0D0h, 00h, 00h, 01h db0A7h,0FEh, 37h,0FFh, 7Ch,0FAh, 50h, 00h, 00h, 00h, 0Ch,0A4h, 08h, 00h, 00h, 01h db0DFh,0FEh, 43h,0FFh,0F8h,0C1h, 80h, 00h, 00h, 00h, 48h, 01h, 00h, 00h, 00h, 01h db 27h,0FFh, 4Bh,0FFh,0FFh,0FAh, 2Ch, 00h, 00h, 00h, 03h, 58h, 20h, 00h, 00h, 01h db 27h,0FFh, 4Bh,0FFh,0FFh,0FAh, 2Ch, 00h, 00h, 00h, 03h, 58h, 20h, 00h, 00h, 01h db 9Bh,0FFh,0C3h,0FFh,0FFh,0F1h,0C0h, 00h, 00h, 00h, 08h, 00h, 00h, 00h, 00h, 01h db 64h, 3Fh,0FDh,0FFh, 6Bh, 7Ch, 10h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 01h db 03h,0D7h,0FFh,0FDh, 10h, 01h,0A0h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 01h db0D8h, 29h, 4Fh,0A2h, 80h,0B5h, 90h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 01h db0D8h, 29h, 4Fh,0A2h, 80h,0B5h, 90h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 01h db 05h, 10h,0B0h, 4Ch, 0Bh, 08h, 40h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 01h db0A0h,0C9h, 0Ah, 00h, 00h, 42h, 10h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 01h db 04h, 10h, 40h, 21h, 64h, 09h,0A0h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 01h db0A2h,0C1h, 35h, 8Ch, 00h, 44h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 01h db0A2h,0C1h, 35h, 8Ch, 00h, 44h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 01h db 00h, 16h, 00h, 21h, 14h, 09h,0A0h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 01h db0A5h, 00h,0B5h, 80h, 83h, 44h, 0Ch, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 01h db 00h, 26h, 00h, 12h, 08h, 09h,0A0h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 01h db0DAh, 00h,0B4h, 40h, 60h, 44h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 01h db0DAh, 00h,0B4h, 40h, 60h, 44h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 01h db 80h,0C8h, 00h, 00h, 04h, 01h,0A0h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 01h db0A2h, 20h, 89h, 91h, 10h, 8Ah, 10h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 01h db 44h, 06h, 00h, 00h, 00h, 30h, 40h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 01h db 44h, 06h, 00h, 00h, 00h, 30h, 40h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 01h db 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 01h db 80h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 01h db 80h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 01h db 80h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 01h db 80h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 01h db0FFh,0FFh,0FFh,0FFh,0FFh,0FFh,0FFh,0FFh,0FFh,0FFh,0FFh,0FFh,0FFh,0FFh,0FFh,0FFh ;*-------------------------------------------------------------------- * ;*-------------------------------------------------------------------- * ;* Bitmap點陣數據表 * ;* 圖片: E:\圖形13.bmp,橫向取模左高位,數據排列:從左到右從上到下 * ;* 圖片尺寸: 128 * 64 * ;*-------------------------------------------------------------------- * TU_TAB4: ; 漂亮姑娘看過來 db 0FFh,0FFh,0FFh,0FFh,0FFh,0FFh,0FFh,0FFh,0FFh,0FFh,0FFh,0FFh,0FFh,0FFh,0FFh,0FFh db 80h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 01h db 80h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 01h db 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h db 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h db 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h db 00h, 00h, 00h, 00h, 00h, 00h, 00h, 11h,0FFh, 80h, 40h, 08h, 30h, 10h, 20h, 00h db 00h, 00h, 00h, 00h, 00h, 00h, 00h, 0Ch, 68h, 3Fh,0FFh, 08h, 30h, 11h,0F8h, 00h db 00h, 00h, 00h, 00h, 00h, 00h, 00h, 0Ch, 68h, 3Fh,0FFh, 08h, 30h, 11h,0F8h, 00h db 00h, 00h, 00h, 00h, 00h, 00h, 00h, 01h,0FFh, 00h, 00h, 7Fh,0FEh, 7Dh, 08h, 00h db 00h, 00h, 00h, 00h, 00h, 00h, 00h, 11h, 6Bh, 07h,0FCh, 16h, 30h, 2Dh,0F8h, 00h db 00h, 00h, 00h, 00h, 00h, 00h, 00h, 0Dh,0FFh, 04h, 0Ch, 16h, 30h, 2Dh, 08h, 00h db 00h, 00h, 00h, 00h, 00h, 00h, 00h, 0Ch, 00h, 3Fh,0FFh, 16h, 30h, 2Dh,0F8h, 00h db 00h, 00h, 00h, 00h, 00h, 00h, 00h, 0Ch, 00h, 3Fh,0FFh, 16h, 30h, 2Dh,0F8h, 00h db 00h, 00h, 00h, 00h, 00h, 00h, 00h, 0Ch,0FFh, 30h, 01h, 66h,0FEh, 2Dh, 26h, 00h db 00h, 00h, 00h, 00h, 00h, 00h, 00h, 1Ch, 00h, 03h,0F0h, 76h, 82h, 2Dh, 28h, 00h db 00h, 00h, 00h, 00h, 00h, 00h, 00h, 0Dh,0FFh, 82h, 11h, 08h, 82h, 11h, 10h, 00h db 00h, 00h, 00h, 00h, 00h, 00h, 00h, 0Ch, 8Bh, 04h, 11h, 16h, 82h, 2Dh, 28h, 00h db 00h, 00h, 00h, 00h, 00h, 00h, 00h, 0Ch, 8Bh, 04h, 11h, 16h, 82h, 2Dh, 28h, 00h db 00h, 00h, 00h, 00h, 00h, 00h, 00h, 0Dh, 18h,0B8h, 1Fh, 60h,0FEh, 41h,0C6h, 00h db 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h db 00h, 07h, 8Fh,0FFh, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h db 00h, 08h, 70h, 40h,0EFh, 80h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h db 00h, 08h, 70h, 40h,0EFh, 80h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h db 00h, 10h, 00h, 80h, 10h, 60h, 00h, 0Fh,0FFh, 30h, 0Ch, 00h, 80h, 00h, 00h, 00h db 00h, 20h, 18h, 38h, 20h, 60h, 00h, 00h, 60h, 08h, 0Ch, 1Fh,0FCh, 1Ch, 00h, 00h db 00h,0C0h, 64h, 45h, 00h, 60h, 00h, 03h,0FCh, 0Bh,0FFh, 00h, 80h, 3Eh, 00h, 00h db 00h,0C1h, 00h, 01h, 00h, 10h, 00h, 00h, 80h, 00h, 0Ch, 08h, 88h, 3Eh, 00h, 00h db 00h,0C1h, 00h, 01h, 00h, 10h, 00h, 00h, 80h, 00h, 0Ch, 08h, 88h, 3Eh, 00h, 00h db 01h, 01h, 00h, 00h,0C0h, 10h, 00h, 1Fh,0FFh,0BDh, 8Ch, 06h,0B0h, 3Eh, 00h, 00h db 02h, 0Eh, 18h, 1Ch,0C0h, 10h, 00h, 01h, 00h, 04h, 4Ch, 7Fh,0FEh, 1Ch, 00h, 00h db 02h, 16h, 64h, 22h, 20h, 10h, 00h, 03h,0FCh, 04h, 4Ch, 01h,0C0h, 1Ch, 00h, 00h db 02h, 16h, 64h, 22h, 20h, 10h, 00h, 03h,0FCh, 04h, 4Ch, 01h,0C0h, 1Ch, 00h, 00h db 04h,0E8h, 83h, 41h, 1Ch, 08h, 00h, 0Dh, 04h, 04h, 0Ch, 06h,0B0h, 00h, 00h, 00h db 07h, 10h, 8Fh, 47h, 03h, 88h, 00h, 11h,0FCh, 04h, 3Ch, 08h, 88h, 1Ch, 00h, 00h db 00h, 20h, 6Ch, 26h, 01h, 78h, 00h, 01h, 04h, 0Ah, 00h, 70h, 86h, 1Ch, 00h, 00h db 00h,0C0h, 18h, 1Ch, 00h, 80h, 00h, 01h,0FCh, 31h,0FFh, 00h, 80h, 00h, 00h, 00h db 00h,0C0h, 18h, 1Ch, 00h, 80h, 00h, 01h,0FCh, 31h,0FFh, 00h, 80h, 00h, 00h, 00h db 00h,0C1h, 87h, 80h, 00h, 80h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h db 01h, 06h, 78h, 3Ch, 20h, 60h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h db 01h, 08h, 07h,0C2h,0C0h, 60h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h db 01h, 08h, 00h, 01h,0C0h, 60h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h db 01h, 08h, 00h, 01h,0C0h, 60h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h db 01h, 08h, 18h, 01h,0C0h, 60h, 00h, 00h, 00h,0F1h,0F3h, 87h,0C0h, 00h, 00h, 00h db 00h,0C6h, 18h,0C2h, 20h, 80h, 00h, 00h, 03h, 0Eh, 1Ch, 78h, 70h, 00h, 00h, 00h db 00h,0C1h, 00h,0C2h, 00h, 80h, 00h, 00h, 04h, 44h, 11h, 10h, 38h, 00h, 00h, 00h db 00h, 26h,0E0h, 04h, 01h, 00h, 00h, 00h, 04h, 80h, 12h, 00h, 38h, 00h, 00h, 00h db 00h, 26h,0E0h, 04h, 01h, 00h, 00h, 00h, 04h, 80h, 12h, 00h, 38h, 00h, 00h, 00h db 00h, 11h, 18h, 38h, 03h, 00h, 00h, 00h, 04h, 80h, 12h, 00h, 38h, 00h, 00h, 00h db 00h, 0Eh, 87h,0C2h, 1Ch, 00h, 00h, 00h, 04h, 00h, 10h, 00h, 38h, 00h, 00h, 00h db 00h, 01h,0E0h, 04h,0E0h, 00h, 00h, 00h, 03h, 00h, 1Ch, 00h, 70h, 00h, 00h, 00h db 00h, 1Eh, 18h, 3Fh, 1Eh, 00h, 00h, 00h, 00h, 80h, 32h, 00h,0C0h, 00h, 00h, 00h db 00h, 1Eh, 18h, 3Fh, 1Eh, 00h, 00h, 00h, 00h, 80h, 32h, 00h,0C0h, 00h, 00h, 00h db 00h, 38h, 07h,0C0h, 0Fh, 00h, 00h, 00h, 00h, 40h, 61h, 01h, 80h, 00h, 00h, 00h db 00h,0E9h,0FFh,0FFh, 0Dh, 80h, 00h, 00h, 00h, 31h,0C0h, 87h, 00h, 00h, 00h, 00h db 01h,0E9h, 1Bh,0B9h, 0Dh,0E0h, 00h, 00h, 00h, 0Bh, 80h, 6Eh, 00h, 00h, 00h, 00h db 03h,0C9h,0F0h, 1Fh, 0Ch,0F0h, 00h, 00h, 00h, 06h, 00h, 18h, 00h, 00h, 00h, 00h db 03h,0C9h,0F0h, 1Fh, 0Ch,0F0h, 00h, 00h, 00h, 06h, 00h, 18h, 00h, 00h, 00h, 00h db 07h, 06h,0E0h, 06h, 10h, 78h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h db 07h,0C1h, 00h, 00h, 20h,0F8h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h db 07h,0E0h, 80h, 00h,0C1h,0F8h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h db 07h,0E0h, 80h, 00h,0C1h,0F8h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h db 80h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 01h db0FFh,0FFh,0FFh,0FFh,0FFh,0FFh,0FFh,0FFh,0FFh,0FFh,0FFh,0FFh,0FFh,0FFh,0FFh,0FFh end
上傳時間： 2013-10-13
上傳用戶：123啊
主要特點管腳完全與三星9454兼容8位CISC型內核（MC05）4K byte OTP ROM208 byte RAM3組IO口（最多可支持17個通用IO口和1個輸入口）1個PWM輸出1個8位基本定時器1個8位帶比較輸出的定時器1個10位ADC（9路輸入）2個外中斷、1個定時器中斷、1個PWM中斷看門狗復位功能3V低壓復位可選晶振/RC振蕩晶振400K-8MHzRC振蕩有3.2mhz（@5V，typ.）、8MHz（@5V，typ.）、外接電阻電容3種可選
上傳時間： 2013-11-05
上傳用戶：Jerry_Chow
概述 BL22P02是一款低功耗8位OTP型微控制器單元（MCU），適用于各類小家電控制。 主要特點 8位CISC結構CPU（Motorola HC05兼容）17個通用IO口8位實時定時器/計數器，其信號源和觸發沿可由軟件設定，可設置溢出中斷7路鍵盤中斷（KBI）2路外中斷（INT）振蕩模式晶振：32K晶振：432K-8MHz內部RC：2mhz@5V、4MHz@5V、6MHz@5V外接電阻低功耗設計（靜態功耗<1uA@5V）內部自振式看門狗計數器（WDT）64byteRAM2K*8bitOTPROM串行燒寫接口電路程序加密功能工作電壓2.0-5.5V@（432K-4M）2.7-5.5V@（432K-8M）封裝形式：DIP20、SOP20、DIP18、SOP18、DIP16、SOP16、DIP14、SOP14、DIP8、SOP8
上傳時間： 2013-10-15
上傳用戶：佳期如夢
概述 BL22P64可以作為許多中高檔小家電（如電磁爐、微波爐、豆漿機等）的控制芯片，這一類小家電通常都需要靈活的、可編程的控制方式，并需要AD、PWM等資源，同時滿足抗電磁干擾（EMC）4KV的要求。 主要特點 ●8位CISC型內核（兼容MotorolaHC05）●4KbyteOTPROM●208byteRAM●3組IO口（最多18個IOPIN）●1個PWM輸出●1個8位基本定時器●1個8位帶MATCH輸出的定時器●1個10位ADC（9路輸入）●2個外中斷、1個定時器中斷、1個PWM中斷●WATCHDOG●3V低壓復位●可選晶振/RC振蕩晶振400K-4MHzRC振蕩有3.2mhz（@5V，typ.）、0.5MHz（@5V，typ.）、外接電阻3種可選●工作電壓2.7-5.5V●工作溫度-40-85℃●封裝形式：SOP20/DIP20/SOP16
上傳時間： 2013-11-06
上傳用戶：DE2542
主要特點管腳完全與三星9454兼容8位CISC型內核（MC05）4KbyteOTPROM208byteRAM3組IO口（最多可支持17個通用IO口和1個輸入口）1個PWM輸出1個8位基本定時器1個8位帶比較輸出的定時器1個10位ADC（9路輸入）2個外中斷、1個定時器中斷、1個PWM中斷看門狗復位功能3V低壓復位可選晶振/RC振蕩晶振400K-8MHzRC振蕩有3.2mhz（@5V，typ.）、8MHz（@5V，typ.）、外接電阻電容3種可選工作電壓2.2-5.5V（工作頻率400K-4MHz）2.4-5.5V（工作頻率4M-8MHz）工作溫度-40-85℃封裝形式：MC10P2320S:SOP20MC10P2320D:DIP20MC10P2316S:SOP16MC10P2316D:DIP20MC10P2308S:SOP8MC10P2308D:DIP8
上傳時間： 2014-01-19
上傳用戶：yd19890720
《現代微機原理與接口技術》實驗指導書 TPC-H實驗臺C語言版 1.實驗臺結構1）I / O 地址譯碼電路如上圖1所示地址空間280H～2BFH共分8條譯碼輸出線：Y0～Y7 其地址分別是280H～287H、288H～28FH、290H～297H、298H～29FH、2A0H～2A7H、2A8H～2AFH、2B0H～2B7H、2B8H～2BFH，8根譯碼輸出線在實驗臺I/O地址處分別由自鎖緊插孔引出供實驗選用（見圖2）。 2) 總線插孔采用“自鎖緊”插座在標有“總線”區引出數據總線D7～D0；地址總線A9～A0，讀、寫信號IOR、IOW；中斷請求信號IRQ ；DMA請求信號DRQ1；DMA響應信號DACK1 及AEN信號，供學生搭試各種接口實驗電路使用。3) 時鐘電路如圖-3所示可以輸出1MHZ 2mhz兩種信號供A/D轉換器定時器/計數器串行接口實驗使用。圖34) 邏輯電平開關電路如圖-4所示實驗臺右下方設有8個開關K7～K0，開關撥到“1”位置時開關斷開，輸出高電平。向下打到“0”位置時開關接通，輸出低電平。電路中串接了保護電阻使接口電路不直接同＋5V 、GND相連，可有效地防止因誤操作誤編程損壞集成電路現象。圖 4 圖 55) L E D 顯示電路如圖-5所示實驗臺上設有8個發光二極管及相關驅動電路（輸入端L7～L0），當輸入信號為“1” 時發光，為“0”時滅6) 七段數碼管顯示電路如圖-6所示實驗臺上設有兩個共陰極七段數碼管及驅動電路，段碼為同相驅動器，位碼為反相驅動器。從段碼與位碼的驅動器輸入端（段碼輸入端a、b、c、d、e、f、g、dp，位碼輸入端s1、 s2）輸入不同的代碼即可顯示不同數字或符號。
上傳時間： 2013-11-22
上傳用戶：sssnaxie
C51語音播放源碼 將語音按占空比放出。原語音為8位8KHz，則125us一個字節，現時鐘主頻近2mhz，周期為0.5us，這樣一個字節占250個周期，而字節8位為256，可以近似為256個周期，實驗應放在定時器中產生。 如果倍頻，每個字節就可以產生兩個波形，音質應更好
上傳時間： 2013-12-31
上傳用戶：zjf3110
