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0answers
55 views

J1 CPU problem, for get the variable value, I must read two times

I'm working with the J1 Forth CPU Core (on Digilent Nexys 2). When I use variables, I need to read two times to get the stored value in the variable. For example: ...
0
votes
1answer
38 views

Signal of qubits

In the basics of digital electronics , I learned that 0 means there is no electronic signal and 1 means the electronic signal is present. All the electronic circuits works on the same mechanism i.e. 1 ...
0
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0answers
39 views

Why use decode stage on pipeline to forward control signals?

In a pipelined processor we use decode stage to decode an instruction and forward the control signals that were found until they are used. Why we don't pipeline the whole instruction and let each ...
1
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1answer
76 views

Improving a processor design in VHDL

For a project at my university we have to improve the design of a processor (more specifically, the Plasma CPU. The design is generated based on a description written in VHDL. We have to identify ...
0
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2answers
86 views

How a multicore processor is initialized? [closed]

Is there any general protocol or algorithm to start a multicore processor? If so, how it works?
0
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0answers
35 views

Clock distribution among multiple cores in an arm based SOC

I have a general doubt of how clock is distributed among cores in ARM based SOC, for example take an ARM Cortex A7 MPCore based SOC the soc i was looking at is based on above core and is a quad core ...
5
votes
2answers
240 views

How do hybrid electronic systems work?

In hybrid systems, we can have DSPs, FPGAs, General purpose processors, etc on the same system operating together on the same application. How are the tasks distributed among them, and which unit ...
0
votes
2answers
83 views

Why is it called General Purpose Processor

I need some help to understand the name "general prupose processor". Through my search I read that a GPP is a: General-Purpose Microprocessors (Hardware....) General-Purpose Macroprocessors (a ...
2
votes
1answer
98 views

Verilog, register values

For learning purposes, I am trying to implement a very simple processor in verilog. The idea is that every clock cycle the machine either fetches the next 4 instructions from memory (each instruction ...
1
vote
3answers
198 views

Why do electromechanical relay computers tend to use higher voltages?

So I am contemplating building a relay computer. And I have not seen any information on why one would select one voltage over another. It seems that it would be ideal to use 5V relays as that is ...
0
votes
1answer
121 views

Program Counter

A program counter is a register that contains the address of the instruction being executed at the current time. Data, instruction and address are stored in ROM memory. How does program counter ...
3
votes
5answers
818 views

How do you design processors / microprocessor [ not broad ]

Apologies for this vague title, but my question is a little specific. I have two concerns : During my digital electronics class, I was told that the design of the processor is first carried on an ...
0
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0answers
35 views

Video system processing using FPGA. Options [duplicate]

I have to design a PCB where a FPGA, ASIC or SOC will be used and the system has to be able to record the video from a camera and display the live video in a display HD. The camera has a resolution ...
1
vote
0answers
94 views

How to compare processor speeds based on architexture

Is there any rule-of-thumb for comparing processor speed based on architecture? I'm researching single-board computers, and I'm trying to compare ones using ARM processors (e.g. Beaglebone Black, ...
0
votes
1answer
58 views

Estimating processing power required

I am currently in a computer engineering class and I have been asked to design a product that can guide blind people. In my fictitious product I am going to implement a module to detect distances (a ...
1
vote
1answer
121 views

Is Micro-processor completely Digital?

I read about different parts of micro-processor like ALU, registers etc. all different digital parts. Are there any analog parts inside the processor?
-5
votes
2answers
157 views

why making processors is Monopolized on 3 companies [closed]

why only there are only 3 companies allowed to make processor "intel - AMD -apple" why others can't make one .. i know that making processor is difficult and needs a huge techno , but what about ...
1
vote
1answer
486 views

Why does Intel produce core i3, core i5 and core i7 processors; but not core i2, core i4 or core i6 processors? [closed]

Why does Intel produce core i3, core i5 and core i7 processors; but not core i2, core i4 or core i6 processors? What is the reason behind this?
0
votes
1answer
43 views

Measuring power consumption of cache memories?

Is there any practical method to only measure the power consumption of combined cache memory. I am intereted in measuring the power conumption overhead when replacing blocks, and or filling the cache ...
-6
votes
1answer
80 views

'0' or '1': Which takes less time to process? Which is more efficient? [closed]

I'm looking to understand the processor at a deeper level. Are the 0's and 1's based exclusively off the system clock? Is there a difference in performance between a string of 1's or a string of ...
1
vote
2answers
453 views

How do I operate a tuner of digital satellite receiver using a microcontroller?

I want to operate this tuner of my digital satellite receiver. This is the tuner: They wrote some numbers and words around of the tuner: and the name and model of the receiver is ...
0
votes
1answer
657 views

Datasheet for this processor(M3329 CPU (MIPS architecture))

Where can i find datasheet for this processor? Look: Also, I could found some information of this link: Acer Laboratories Incorporated but it's not enough.
-5
votes
2answers
570 views

Which is better for high speed? FPGA or ARM Cortex-A(50)? [closed]

Hi i already have worked with the AVR and the Cortex-M for some purpose but now i need to a most powerful processor. So, i think the FPGA or Cortex-A is suitable but i can't compare these both because ...
1
vote
2answers
81 views

State of mutli-cycle processor during execution of instruction

I was reading something about single-cycle and multi-cycle processors and I have (it seems to be) banal question: how does multi-cycle (that doesn't have pararell pipeline) processor save its state so ...
0
votes
1answer
195 views

What are the prerequisites to make a PCB design with processor and other ICs interfaced?

What all is needed (in knowledge and software) to make a small pcb design interfacing processor and external memory and other ICs? Is it possible to make such a thing virtually and give it to a ...
4
votes
5answers
788 views

Why are smartphones and tablets ARM based?

Why don't these devices use Intel processors like laptops do? Why are they restricted to ARM? Also for Windows 8, do they want ARM just for tablets and smartphones or is it also for laptops/desktops ...
2
votes
2answers
146 views

External CPU design

Apologies if this is a dumb question. I don't have any training in electrical engineering, so I can't gauge for myself how ridiculous this sounds. Would it be possible to modify a commercial CPU so ...
4
votes
1answer
78 views

SD Comms Resetting Processor

I have implemented an SD/FAT combination on a Renesas RL78/G13 processor. The SD card is being driven using SPI. The code has been proven to work on two custom target boards using a 2GB card - the SD ...
2
votes
1answer
189 views

Processor - L1 Data cache interface

Sorry if the following looks like a very specialized (or programming) question, but I'm hoping there are people on this forum who have done VHDL/Verilog modeling, and might be able to answer: I'm ...
-2
votes
2answers
83 views

Data processing vs instruction processing in processor [closed]

What a processor does with instructions and with data using examples. Why does it need data if it is processing an instruction?
11
votes
3answers
331 views

Why does working processors harder use more electrical power?

Back in the mists of time when I started coding, at least as far as I'm aware, processors all used a fixed amount of power. There was no such thing as a processor being "idle". These days there are ...
3
votes
1answer
711 views

Cache. MESI protocol for multilevel cache in Intel processors

Now I'm trying to simulate the performance of Intel CORE 2 Duo processor (but I'll be very pleased with information about any other multi-core Intel processor) and it's work with the computer memory. ...
1
vote
1answer
1k views

Building multiprocessor motherboard

I would like to build a multi processor motherboard using ARM processors (e.g. the ARM Cortex A8 or A9 or others as well), for low-power computing. Is this possible ? I mean interconnecting the ...
3
votes
3answers
2k views

What is flash memory wait states?

I'm using a freescale PowerPC microcontroller. In the flash memory module in the datasheet, the number of "wait states of the flash memory access" is configurable. The following is the part of the ...
3
votes
2answers
146 views

PowerPC Interrupt Vector 0xfff00800

This is a long shot, and may come under fire as not being EE-enough of a question for this site, but what conditions will result in a PowerPC processor (e.g. Freescale 7448) taking a jump to address ...
3
votes
5answers
2k views

Why does a processor overclock faster when cooled with liquid nitrogen?

Why does a processor overclock faster when cooled with liquid nitrogen? Also, is the inverse the reason why the processor slows down when it get's hot? I'm specifically interested in Intel ...
1
vote
1answer
442 views

Learning about the Interrupt system of the 8085 processor

I am trying to investigate the RST5.5, RST6.5, and RST7.5 interrupts on the 8085 microprocessor. I want to find information about the to the type of interrupting signal used and the built in ...
5
votes
2answers
1k views

Processor with hardware camera interface port?

I was looking for a processor to interface to the DVP port of a 5MP CMOS camera module. I could possibly write the software for doing this but I've heard that many processors have a hardware camera ...
16
votes
6answers
1k views

Identify processor type from raw binary code?

Not really related to chips, but hopefully I'll get some directions to follow from here. I got a chunk of code, but I don't know what processor it intended for. Are there tools available that can ...