Advance Microcontroller — Summer 2022

What is the advantage of barrel shifter in ARM?

Why FIQ response is fast than IRQ response in ARM processor? Explain necessity of FIQ with one example.

Explain difference between RISC and CISC architecture. Which RISC features are selected in ARM processor and which features are rejected in ARM processor?

What are the special functions of R13, R14 and R15 registers?

What is the purpose of CPSR and SPSR in ARM processor?

Explain ARM7TDMI architecture and its programming model

Explain ARM 3 stage and 5 stage pipeline. If an instruction takes cycles for execution, then how many cycles are needed for executing instructions of the same type in a sequence using a 3-stage pipeline? Assume that there are no interrupts or exceptions while executing the instructions.

Explain difference between Little endian & Big Endian with example

What is default ARM exception priority? What will be effect of setting Iand Fbit?

Explain following assembly language instructions: [a] LDMIA R0!,{R2-R6} [b] MVN R1,R4 [c] MOV R5,R6,LSL #2 [d] LDR R1,[R3] [e] RSC R0,R1,R2 [f] ADDEQ R0,R1,R2 [g] TST R1,R2

Explain difference between Harvard & Von-Neumann Architecture

In ARM processor, content of register R1=0x7FFFFFFF and R2=0x00000001. What will be content of register R3 and status of flag Vafter execution of instruction ADDS R3,R1,R2 ?

Draw interfacing diagram to interface LCD with ARM processor. Write Assembly or Cprogram to display message “DIGITAL INDIA” on the LCD.

Write initialization instruction in Embedded Clanguage for ARM if we want to connect 4 push-button SW with P0.0 to P0.3, 8 LEDs with P0.4 to P0.11, Digital sensors with P0.12 to P0.15 and Actuators with P0.16 to P0.19 pins of ARM Chip.

List ARM development tools and advantages of Embedded C Programming.1

What are the exceptions in ARM processor? Explain mode of operation for different exceptions

List I2C and SPI interface signals. Is it possible to connect multiple devices with I2C interface?

What is cache memory? What is advantage of using cache memory? Explain concept of cache memory

List optimization techniques of Embedded C Programming. Explain any three techniques in detail with examples.

Discuss variable storage class: Automatic, Register and static.

What is difference between Cortex A, Cortex Mand Cortex Rseries of ARM?

Design ARM based system to control solenoids S1, S2,S3 and S4. Write Embedded Cprogram to operate solenoid in such a way that solenoid S1 and S3 should be ON for 5 second and then after solenoid S2 and S4 should be ON for 3 second and then after repeat the sequence continuously.

Justify the statement “Virtual memory is illusion of large main memory”

What is AMBA? Why AMBA is popular in modern embedded system design?

Design ARM system to generate two PWM signals to control devices. Write Cprogram to generate PWM on any two PWM pins with duty cycle of 20% and 40% respectively.