Microcontroller & Interfacing (Biomedical) — Winter 2019

Draw the Pin Diagram of 8051.

Compare Microporcessor and Microcontroller.

Draw the Programming model of 8051 and explain in detail.

Write a program to copy the value 65H into RAM memory locations 20H to 21H using register indirect addressing mode.

Explain Immediate and Register addressing mode with examples.

Explain IP and IE register in detail.

Enlist various data types of ‘C’ Programming in 8051. Write an 8051 C program to convert packed BCD 0x78 to ASCII and display the bytes on P1 and P2.

Explain PSW Register in detail.

Write a program to check data stored in RAM location 20h to 24h for Sign. If number is negative store them in RAM location starting from 30h.

Write program to arrange data in ascending order. Assume that data is stored in internal RAM location 40h to 44h.

Explain various CJNE instructions.

Write a program to check string stored in memory location 50h to 55h is in palindrome or not. If yes, store ‘Y’ in memory location 56h else store ‘N’.

Explain any three assembly language directives. Write a subroutine to convert Packed BCD data to Hex data.

Explain TMOD Register in detail.

Write a program to generate delay of 1ms. Assume crystal frequency MHz.

Write a program in ‘C’ to receive data serially with 9600 baud rate and send it port P1. Assume 8 bit data and 1 stop bit.

Explain RS-232 DB9 in detail.

Write a ‘C’ program to generate square wave with frequency of 1 Hz on pin P2.0.

Write a program to transmit ‘Y’ serially with 9600 baud rate. Assume 8 bit data and 1 stop bit.1

Draw the interfacing circuit to interface DAC 0808.

Write a program to read status of switch connected with Port 0 and turn ON respective LEDs connected on Port 2.

Explain how to interface Program ROM and Data ROM with neat circuit.

Draw the interfacing circuit to interface 16x2 LCD.

Explain each pin of RTC DS12887 .

Interface ADC 0804 and LEDs with Port P1 and P2 of 8051 respectively. Write a program to read data of ADC and display it on LEDs.