[问答]

刚学单片机几乎一窍不通，找个大神带一下

2271

问答对人有帮助，内容完整，我也想知道答案0 刚学单片机几乎一窍不通，找个大神带一下有时间的大神帮忙看看怎么在下面程序基础上插入一个简单的锯齿波程序和数码管显示程序实现对不同波形显示不同数字比如 ORG 0000H LJMP MAIN ORG 0100H MAIN: JNB P1.0,P10 JNB P1.1,P11 JNB P1.2,P12 LJMP MAIN P10: MOV R7,#00H LCALL SQU LJMP MAIN P11: MOV R7,#01H LCALL TRI LJMP MAIN P12: MOV R7,#02H LCALL SIN LJMP MAIN SQU: JNB P1.1,N1 JNB P1.2,N2 LJMP SSQU N1: MOV R7,#01H LJMP TC0 N2: MOV R7,#02H LJMP TC0 SSQU: CJNE R7,#00H,TC0 MOV R0,#00H K00: MOV P0,#0FFH MOV P2,#0FFH MOV A,P2 CPL A MOV R3,A L00: DEC R3 CJNE R3,#255,L00 INC R0 INC R0 CJNE R0,#254,K00 MOV R0,#00H K01: MOV P0,#00H MOV P2,#0FFH MOV A,P2 CPL A MOV R3,A L01: DEC R3 CJNE R3,#255,L01 INC R0 INC R0 CJNE R0,#254,K01 LJMP SQU TC0: RET TRI: JNB P1.0,N3 JNB P1.2,N4 LJMP TTRI N3: MOV R7,#00H LJMP TC2 N4: MOV R7,#02H LJMP TC2 TTRI: CJNE R7,#01H,TC2 MOV R0,#00H K20: MOV P0,R0 MOV P2,#0FFH MOV A,P2 CPL A MOV R3,A L20: DEC R3 CJNE R3,#255,L20 INC R0 INC R0 CJNE R0,#254,K20 K21: MOV P0,R0 MOV P2,#0FFH MOV A,P2 CPL A MOV R3,A L21: DEC R3 CJNE R3,#255,L21 DEC R0 DEC R0 CJNE R0,#0,K21 LJMP TRI TC2: RET SIN: JNB P1.0,N5 JNB P1.1,N6 LJMP SSIN N5: MOV R7,#00H LJMP TC3 N6: MOV R7,#01H LJMP TC3 SSIN: CJNE R7,#02H,TC3 MOV R0,#00H K30: MOV A,R0 MOV DPTR,#TAB MOVC A,@A+DPTR MOV P0,A INC R0 MOV P2,#0FFH MOV A,P2 CPL A MOV R3,A L30: DEC R3 CJNE R3,#255,L30 CJNE R0,#255,K30 LJMP SIN TC3: RET TAB: DB 80H,82H,84H,86H,88H,8AH,8CH,8EH,90H,92H,94H,96H,98H,9AH,9CH,9EH DB 0A0H,0A2H,0A4H,0A6H,0A8H,0AAH,0ABH,0ADH,0AFH,0B1H,0B2H,0B4H,0B6H,0B7H,0B9H,0BAH DB 0BCH,0BDH,0BFH,0C0H,0C1H,0C3H,0C4H,0C5H,0C6H,0C8H,0C9H,0CAH,0CBH,0CCH,0CDH,0CEH DB 0CEH,0CFH,0D0H,0D1H,0D1H,0D2H,0D2H,0D3H,0D3H,0D4H,0D4H,0D4H,0D4H,0D5H,0D5H,0D5H DB 0D5H,0D5H,0D5H,0D5H,0D4H,0D4H,0D4H,0D4H,0D3H,0D3H,0D2H,0D2H,0D1H,0D1H,0D0H,0CFH DB 0CEH,0CEH,0CDH,0CCH,0CBH,0CAH,0C9H,0C8H,0C6H,0C5H,0C4H,0C3H,0C1H,0C0H,0BFH,0BDH DB 0BCH,0BAH,0B9H,0B7H,0B6H,0B4H,0B2H,0B1H,0AFH,0ADH,0ABH,0AAH,0A8H,0A6H,0A4H,0A2H DB 0A0H,9EH,9CH,9AH,98H,96H,94H,92H,90H,8EH,8CH,8AH,88H,86H,84H,82H DB 80H,7DH,7BH,79H,77H,75H,73H,71H,6FH,6DH,6BH,69H,67H,65H,63H,61H DB 5FH,5DH,5BH,59H,57H,55H,54H,52H,50H,4EH,4DH,4BH,49H,48H,46H,45H DB 43H,42H,40H,3FH,3EH,3CH,3BH,3AH,39H,37H,36H,35H,34H,33H,32H,31H DB 31H,30H,2FH,2EH,2EH,2DH,2DH,2CH,2CH,2BH,2BH,2BH,2BH,2AH,2AH,2AH DB 2AH,2AH,2AH,2AH,2BH,2BH,2BH,2BH,2CH,2CH,2DH,2DH,2EH,2EH,2FH,30H DB 31H,31H,32H,33H,34H,35H,36H,37H,39H,3AH,3BH,3CH,3EH,3FH,40H,42H DB 43H,45H,46H,48H,49H,4BH,4DH,4EH,50H,52H,54H,55H,57H,59H,5BH,5DH DB 5FH,61H,63H,65H,67H,69H,6BH,6DH,6FH,71H,73H,75H,77H,79H,7BH,7DH END 0
2012-12-18 11:35:29　　评论淘帖0 邀请回答您可以邀请以下用户，快速回答问题 × 谢新貌该类别下有 43 个回答。邀请回答新星之火12138 该类别下有 39 个回答。邀请回答 911119qianhao 该类别下有 35 个回答。邀请回答 hgimtk 该类别下有 32 个回答。邀请回答 wang21cj 该类别下有 31 个回答。邀请回答独孤辉二该类别下有 27 个回答。邀请回答 wuli北该类别下有 25 个回答，其中被选为最佳答案 1 次。邀请回答周鹏生该类别下有 24 个回答。邀请回答修罗君该类别下有 24 个回答，其中被选为最佳答案 1 次。邀请回答牛牛爱吃草该类别下有 24 个回答。邀请回答 horayte 该类别下有 24 个回答，其中被选为最佳答案 1 次。邀请回答 butterflydw 该类别下有 24 个回答。邀请回答 hy381 该类别下有 24 个回答。邀请回答 hisysteeoke 该类别下有 23 个回答。邀请回答名士流该类别下有 23 个回答。邀请回答大洼球王该类别下有 23 个回答。邀请回答蔡甸一角该类别下有 23 个回答。邀请回答 32949523596693 该类别下有 23 个回答。邀请回答 ggfx 该类别下有 22 个回答，其中被选为最佳答案 1 次。邀请回答 kmno4 该类别下有 22 个回答。邀请回答举报董旭相关推荐 • 请问如何判断一个开关电源的好坏？3625 •一个人的救赎2402 • 关于STC89C52RC单片机和加速度传感器MMA8452Q设计手势识别系统2621 • =====大牛们来帮忙，选型，软硬件方案=====1768 • =====大牛们来帮忙，选型，软硬件方案=====1929 • 如何学好LabVIEW2457 • 学习DSP嵌入式所必须学的知识3343 • 怎么提供3V数字电平?3701 • 请问有大神用NTC热敏电阻做过电子温度计没？3861 • 菜鸟求帮助1965