By David Calcutt, Frederick Cowan, Hassan Parchizadeh
The 8051 structure constructed through Intel has proved to be the most well-liked and enduring form of microcontroller, to be had from many makers and known for commercial purposes and embedded platforms in addition to being a flexible and comparatively cheap choice for layout prototyping, academic use and different undertaking work.
In this booklet the authors introduce the basics and features of the 8051, then positioned them to exploit via useful workouts and undertaking paintings. the result's a hugely sensible studying adventure that would aid quite a lot of engineers and scholars to get throughout the steepest a part of the training curve and turn into trained and effective designing with the 8051. The textual content is additionally supported through sensible examples, summaries and knowledge-check questions.
The most modern advancements within the 8051 kinfolk also are coated during this ebook, with chapters protecting flash reminiscence units and 16-bit microcontrollers.
- Microcontroller architecture
- improvement board design
- Programming utilizing meeting language
- Programming utilizing C
- Simulation and development
- Flash microcontrollers
- Switches, cars, information converters and displays
- Serial info transmission
- promenade microcontrollers
- 16-bit microcontrollers
- undertaking applications
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Additional info for 8051 Microcontroller: An Applications Based Introduction
0592. The value chosen is in MHz. 37. 37 and CLM on OK causes the software to go into Debug/ Simulation mode. A Watches window will appear at the bottom of the screen. If it appears too large then CLM on the two vertical bars on the left of the Watches window and dragging the window into the program window and then out again, should make it smaller. 38. Reset is the icon with the ﬁnger pointing towards the red button. The icon to the right of reset is Step into (fast key F7), used for single stepping through the program.
The icon to the right, a sheet with a blue arrow to the right, is the Run button. The cross icon next right is the Stop button; it changes to red when the simulated program is running. The next four sets of brackets to the right are: 1. 2. 3. 4. Single stepping (alternative is key F11). Single step avoiding subroutines (alternative is key F10). Jumping out of subroutines when stuck in a loop. Run simulation to stop at blinking cursor. Breakpoints at suitable points in the program may be inserted by moving the PC mouse to the beginning of a line and positioning the blinking cursor at this point.
Time delays 25 The use of onboard timers will be described in a later chapter; here the register decrement method will be described. The basic single loop program lines are: DELAY: MOV R0,#number TAKE: DJNZ R0,TAKE ; move a number into an 8-bit ; register R0 ; keep decrementing R0 until it is ; zero ; return from DELAY subroutine RET MOV takes 6 clock cycles, DJNZ and RET each take 12 clock cycles. The delay is called up from the main program using ACALL, which takes 12 clock cycles. The delay time is (12 þ 6 þ (number Â 12) þ 12) clock cycles.
8051 Microcontroller: An Applications Based Introduction by David Calcutt, Frederick Cowan, Hassan Parchizadeh