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binary to bcd decoder
This is only true if your number is 9 or less. Otherwise, you must decode if you want bcd.samcheetah said:first of all i dont understand the subject.
binary to bcd decoder
BCD is binary coded decimal. so BCD is actually an encoded form of binary. u cant decode binary to bcd. although u can decode bcd to binary.
This is only true if your number is 9 or less. Otherwise, you must decode if you want bcd.
11011011 (binary) = 219 (decimal) = 0010 0001 1001 (bcd). That requires a decoder
Isn't that called semantics? I thought you were implying that no logic transformation (encoding, decoding, transmogrification, whatever) was required to get from binary to BCD.
BCD is binary coded decimal. so BCD is actually an encoded form of binary. u cant decode binary to bcd. although u can decode bcd to binary.
OK, sorry that I misunderstood you. I generally agree with your definitions of encoding and decoding, although a Google search for "binary to BCD decoder" produced a page of hits - so I'm not the only idiot. :?samcheetah said:Isn't that called semantics? I thought you were implying that no logic transformation (encoding, decoding, transmogrification, whatever) was required to get from binary to BCD.
no i didnt say that. i said
BCD is binary coded decimal. so BCD is actually an encoded form of binary. u cant decode binary to bcd. although u can decode bcd to binary.
when u transform one thing into something else, it is called encoding and when u transform it back to that thing it is called decoding. so when u transform binary into BCD, u r encoding binary into BCD. so BCD is an encoded form of binary. now when u transform BCD to binary u are decoding BCD to get the equivalent binary. the person who asked the question wrote "binary to BCD decoder" in the subject. so i told him that he was not right.
i think we should not argue on semantics and rather try to answer his question.
i told that im sorry i dont understand the question. but i did try to answer the question from what i understood.
OK, sorry that I misunderstood you.
The binary to BCD converters I have seen require a microcontroller or microprocessor. There was a TTL part, 74185, but it seems to have been discontinued.
If you had a multi-digit BCD counter, and you converted the output to binary, would that be called an encoder or a decoder? I think perhaps "converter" is a better term, no matter which way you are going.
jacuinde said:i have a problem, im representing a analog signal that im converting it to digital, then when i try to display on a 7 segment display with a 7448 bcd driver, a 10, i want it to turn to 0 and that in another display it gives me a 1, how can i do it?