Microcontroller & Interfacing (Biomedical) — Summer 2023

Give the differences between microprocessors and microcontrollers.

Draw the pin diagram of 8051 microcontroller.

Draw and explain internal block diagram of 8051 microcontroller. Explain PORTs of 8051.

Explain program counter and stack pointer.

Draw and Explain PSW register.

Explain memory structure of 8051 microcontroller.

Explain different addressing modes of 8051.

Explain the instructions of 8051 with examples: ANL, CLR, CPL

Explain for loop and while loop of c language using example.

Explain any 3 arithmetic instructions of 8051. Write an assembly program to “AND” the contents of external RAM location 2000h and 2001h. Store the result in external RAM location 3000h.

Explain any 3 CALL instructions.

Write an assembly or c code to blink led which is connected to Port 1.0 of 8051.

Explain different Rotate instructions of 8051. Divide the number in R1 by 2 and put the quotient in R0 and reminder in R2.

Adoor sensor is connected to the pin P2.1, and a buzzer is connected to P2.7. Write an 8051 assembly or Cprogram to monitor the door sensor. When it opens, sound the buzzer.

Write an 8051 Cprogram to receive bytes of data serially and put them in P1. Set the baud rate at 4800, 8-bit data, and 1-stop bit.

Write an Assembly or Ccode to display your name on LCD using 8051.

Draw and explain Relay interfacing using 8051.

Write a c code to display “5” on Common Anode seven segment using 8051.

Write a program to transfer a letter ‘X’ serially at 9600 baud rate continuously.

Explain IE (Interrupt Enable) Register and IP register of 8051.

Draw and explain DC motor Interfacing with 8051 in detail.

Write a program to generate 1 KHz pulse waveform of 10% duty cycle on pin 1.0 using timer-1.

Draw and explain the block diagram of Timer 0.

Enlist different SFRs used in Timer 0 programming. Explain any 3 in detail.

Write an assembly or Ccode to read analog sensor value using ADC 0808 and 8051.