Embedded Systems AllOther Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Embedded Systems AllOther Interview Questions

Questions Answers Views Company eMail

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

Bosch,

3 13326

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

Broadcom, nvidia,

5 19511

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

4 8181

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

Royal Enfield,

2762

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,

3375

PROVIDE ME NOTES ON EMBEDDED TCHNLOGY

TCS,

2800

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

TCS,

3315

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

2645

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 8659

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

CMC,

1683

Explain what is embedded system in a computer system?

785

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

888

Why embedded system is useful?

950

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

873

What does DMA address will deal with?

928

Post New Embedded Systems AllOther Questions

Un-Answered Questions { Embedded Systems AllOther }

Explain me what are the different types of system involved in embedded system?

903

Explain interrupt latency and how can we decrease it?

830

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

882

Tell me why does pre-emptive multi-threading used to solve the central controller problem?

855

Tell me about some of your hobby projects that you've written in your off time.

887

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

1197

What are the advantages and disadvantages of separation of concerns?

827

Tell me what is the difference between hard real-time and soft real-time os?

859

Tell me why cannot arrays be passed by values to functions?

832

What is the function of simple thread poll in embedded system?

863

Tell me what is isr?

868

Why is java used in embedded systems?

866

what is meant by a forward reference in c?

821

Tell me what is the need for dmac in es?

826

Explain some of the commonly found errors in embedded systems?

825

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