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Questions tagged [binary]

Related to binary arithmetic and number system - Base-2 system which represents numeric values using two symbols 0(zero) and 1(one). Use `boolean` tag for logical operations related questions that does not involve binary arithmetic.

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2answers
355 views

A circuit to convert 4-bit Gray numbers to BCD

I'm sorry for asking this specific question here but can some one please tell me what's wrong with this solution. Question: design a circuit to convert 4bit Gray numbers to BCD I have to say I ...
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2answers
5k views

Excess-3 to binary decoder using unused combinations of the code as don't-care condition

This problem is from my textbook chapter review question, and it seems a lot different from the example provided by textbook, so I have no idea what to do. I even have solution manual for this, but ...
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1answer
6k views

Binary Division with Signed Numbers

I am taking an electrical engineering course as part of my computer science degree and we are talking about how a computer performs math computations only using addition. I understand this because ...
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1answer
78 views

How do I convert 1/3 to signed float 8 bit?

The formula is as follows: (-1)^[signed bit] * (1.[significant bit]) * (2^[excess bit -3]) or (-1)^[s] * (1.[f]) * (2^[x-3]) It is a question posed by my signals and systems instructor, hence the ...
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1answer
42 views

Is parallel adder doing additions in each bit position simultaneously?

Does parallel binary adder actually make additions in each position simultaneously? I have read various sources and they all have this description relating to the parallel binary adder: "The additions ...
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1answer
105 views

4bit demultiplexer with address entries in the EXCESS-3 code

My question is: how to make truth table for inputs on E3? There is only space for 2 bits, and E3 is written on 4 bits as I saw. Should I add more inputs for this situation or do this in different way?
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1answer
45 views

A different way for converting to 2's complement

One way to convert any number to 2's complement is by adding the number to 256, if the number can be represented by 8 bit number. For example if we want to convert -100 to 2's complement we do ...
0
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1answer
671 views

Bcd subtractor units connections

I'm new in electronics. I'm trying to make a BCD calculator, but I got stuck in BCD subtraction. I got stuck in: how can I connect multiple bcd subtrator units? I'm trying to make a 3 digit calculator,...
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1answer
75 views
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0answers
311 views

A curious 433 MHz signal to decode

I bought a cheap set of remote controlled power sockets and I want to integrate them into my home automation system. So I got a 433 MHz receiver for 1€, connected it to my Arduino and tried to decode ...
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0answers
37 views

Decimal addition using a different BCD WEIGHTED CODING

The problem that I'm having trouble in understanding is how the addition of two decimal numbers such as 17 + 4 can be represented using the weighted BCD CODE, [7 4 -2 -1] and binary addition ...
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0answers
69 views

LED-Monitor-Firmware reverse engineering / disassembly => replace manufacturer startup logo

I have a display from a disassembled led-monitor (Wortmann Terra 2446W), that I want to use for a SmartMirror-project. Unfortunately, the monitor shows a big manufacturer logo when connected to power, ...
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0answers
179 views

Can i output a certain memory area of a processor with objcopy?

For a bootloader (PIC32) i do need only a certain memory area from a binary file (application for a bootloader, config and bootloader are located elsewhere, no hex possible). If i call the ...
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0answers
42 views

Can Binary to BCD conversion generalize to multiple of 8 bits?

I am trying to solve Problem 16 of Project Euler without using Big Integer libraries like GMP. I came across Binary-To-BCD algorithm to encode 8 bit number as corresponding digits in decimal ...
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0answers
45 views

Ladder Logic BCD Communications

I have a very limited number of outputs available (4 to be exact) on my existing PLC and need to share 5-7 bits of information to another PLC without having the expense off add-on communication cards. ...
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0answers
103 views

Multiplication implementation in Xilinx VHDL

I've been trying to develop a small multiplication engine using some shift registers on XilinX and some custom made functional blocks. The numbers to multiply is Z and T. The purpose of the engine ...
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0answers
99 views

High/low order of the 4 select inputs of a 16-to-1 SN74150 MUX

I'm looking at a Texas Instrument Data sheet for an SN74150 16-to-1 MUX but I can't find which of the select inputs (A, B, C, D) is the higher order and which is the lower order. Does anyone know ...
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0answers
759 views

4 bit binary full adders, bcd and seven segment displays

I'm having fun with some 74LS283[1] 4 bit binary adders but I am having trouble working out how I should convert the output to a decimal which could be used to drive two 7 segement displays which are ...