The 8051 Microcontroller and Embedded Systems, Volume 1
For courses teaching the 8051 Microcontoller.
This book uses a step-by-step approach to teach the fundamentals of assembly language programming and interfacing of the 8051 microcontroller. It uses many examples to clarify concepts. Simple, concise examples are utilized to show what action each instruction performs, then a sample is provided to show its application. This text provides a comprehensive understanding of the internal organization of the 8051 registers and resources in a way that sheds the student's fear of assembly language. Whether students become designers of stand-alone systems or complex embedded systems, they will find this text a useful resource.
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READY : SETB P1.7 ; make P1.7 input port CLR P2.0 ; RS = 0 access command reg SETB P2.1 ; R / W = 1 read command reg ; read command reg and check busy flag BACK : CLR P2.2 ; E = 1 for H - to - l pulse L SETB P2.2 ; E = 0 H - to - L ...
Writing commands and data to LCD without checking busy flag ; Assume PA of 8255 connected to DO - D7 of LCD and ... write command to LCD ACALL DELAY ; wait before next issue ( 2 ms ) MOV A , # 0EH ; LCD command for cursor on ACALL ...
Ai ; writing commands to the LCD with checking busy flag ; PA of 8255 connected to DO - D7 of LCD and ; PBOERS , PB1 = R / W ... write command to LCD MOV A , #OEH ; LCD command for cursor on ACALL NCMDWRT ; write command to LCD MOV A ...
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The 8051 Microcontrollers
8051 ASSEMBLY LANGUAGE PROGRAMMING
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