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Embedded Systems AllOther Interview Questions
Questions Answers Views Company eMail

DMA deals with which address (physical/virtual addresses) ?

Bosch,

3 13458

While writing interrupt handlers (ISR), which are points needed to be considered ?

Broadcom, nvidia,

5 19661

Hi Guru here.......my question is....... Is it necessary to start the execution of a program from the main() in C?

4 8293

Program to print the 32 number in form of binary, Hexa and ASCI.

Royal Enfield,

2797

This program is in verilog and need help to get it working correctly. This is the code i have so far. Please help. Simple testbench would be great. Thanks\ 'define vend_a_drink {D,dispense,collect} = {IDLE,2'b11}; module drink_machine(nickel_in, dime_in, quarter_in, collect, nickel_out, dime_out, dispense, reset, clk) ; parameter IDLE=0,FIVE=1,TEN=2,TWENTY_FIVE=3, FIFTEEN=4,THIRTY=5,TWENTY=6,OWE_DIME=7; input nickel_in, dime_in, quarter_in, reset, clk; output collect, nickel_out, dime_out, dispense; reg collect, nickel_out, dime_out, dispense; reg [2:0] D, Q; /* state */ // synopsys state_vector Q always @ ( nickel_in or dime_in or quarter_in or reset ) begin nickel_out = 0; dime_out = 0; dispense = 0; collect = 0; if ( reset ) D = IDLE; else begin D = Q; case ( Q ) IDLE: if (nickel_in) D = FIVE; else if (dime_in) D = TEN; else if (quarter_in) D = TWENTY_FIVE; FIVE: if(nickel_in) D = TEN; else if (dime_in) D = FIFTEEN; else if (quarter_in) D = THIRTY; TEN: if (nickel_in) D = FIFTEEN; else if (dime_in) D = TWENTY; else if (quarter_in) 'vend_a_drink; TWENTY_FIVE: if( nickel_in) D = THIRTY; else if (dime_in) 'vend_a_drink; else if (quarter_in) begin 'vend_a_drink; nickel_out = 1; dime_out = 1; end FIFTEEN: if (nickel_in) D = TWENTY; else if (dime_in) D = TWENTY_FIVE; else if (quarter_in) begin 'vend_a_drink; nickel_out = 1; end THIRTY: if (nickel_in) 'vend_a_drink; else if (dime_in) begin 'vend_a_drink; nickel_out = 1; end else if (quarter_in) begin 'vend_a_drink; dime_out = 1; D = OWE_DIME; end TWENTY: if (nickel_in) D = TWENTY_FIVE; else if (dime_in) D = THIRTY; else if (quarter_in) begin 'vend_a_drink; dime_out = 1; end OWE_DIME: begin dime_out = 1; D = IDLE; end endcase end end always @ (posedge clk ) begin Q = D; end endmodule

Intel,

3450

PROVIDE ME NOTES ON EMBEDDED TCHNLOGY

TCS,

2847

can please tel me faq's asking in interviews on microcontrollers

TCS,

3371

please send me the faq's in technical interviews on cand datastructures , unix(shell scripting).

2691

look at following code void foo(void) { unsigned int a = 6; int b = -20; int c = (a+b > 6) ? 1:0; } o/p is 1 why explain promotion rules

1 8737

How can to check the working of a sensor deployed in a project?

CMC,

1733

Explain what is embedded system in a computer system?

829

Explain what is the need for an infinite loop in embedded systems?

937

Why embedded system is useful?

981

Explain what is interrupt latency? How can you reduce it?

916

What does DMA address will deal with?

977


Post New Embedded Systems AllOther Questions

Un-Answered Questions { Embedded Systems AllOther }

How does input/output bus functions?

861


Infinite loops often arise in embedded systems. How does you code an infinite loop in c?

1235


Tell me what type of scheduling is there in rtos?

840


What are little endian and big endian types of storage? How can you identify which type of allocation a system follows?

956


What is the purpose of the segment register?

813


Which parameters decide the size of data type for a processor?

910


Which is better a char, short or int type for optimization?

924


Whether we can use semaphore or mutex or spinlock in interrupt context in linux kernel?

893


Describe a pattern that is not the factory pattern?

844


How does inversion of control relate to dependency injection?

892


Tell me what is top half & bottom half of a kernel?

862


What is size of character, integer, integer pointer, character pointer?

844


Implement a using on .

881


What is the repository pattern?

978


Tell me is count down_to_zero loop better than count_up_loops?

879