Convert binary to BCD code

[genetica]

I'd like to know how to convert one of my 4bit codes to a BCD code.

 

[ericgibbs]

I'd like to know how to convert one of my 4bit codes to a BCD code.

hi,
Is that a 4 bit binary code to bcd?, or to hex?


Have a look at this thread:

https://www.electro-tech-online.com/threads/binary-input-hex-dispaly-7-segment-led.31898/

 

[genetica]

4bit binary to BCD.

 

[ericgibbs]

4bit binary to BCD.

hi,
I must be missing something.

Isnt 0 thru 9 binary, BCD anyway??

Can you post a sample bin pattern?

 

[genetica]

Well i got a random sequence for certain numbers

0 1110
1 1101
2 1011
3 0111
4 0001
5 0010
6 0100
7 1000
9 0000
8 all the rest.

And i like to convert them to BCD 8421 code.
I made a karnaugh diagram a created a circuit for the four inputs and then fout outputs a circuit for each bit. But the circuit is like huge.

 

[ericgibbs]

Well i got a random sequence for certain numbers

0 1110
1 1101
2 1011
3 0111
4 0001
5 0010
6 0100
7 1000
9 0000
8 all the rest.

And i like to convert them to BCD 8421 code.
I made a karnaugh diagram a created a circuit for the four inputs and then fout outputs a circuit for each bit. But the circuit is like huge.

hi,

Have you considered using an EPROM ic, load the pattern you want out as the data and the 'odd bit' pattern as the address?

EDIT:
IF this is related to the 7seg Driver thread, the EPROM output data could be the 7seg driver data!

 

[ericgibbs]

hi,
This drawing shows the method.

 

[genetica]

Thanks ill do the Eprom.

 

[xbop]

How to convert 4 digit BCD 7 segment LED to 16 binary code.

I am using PIC16F946 and like to write a code converting 4 digits BCD 7 segment LCD to 16 binary code. Example, the 4 digits BCD number 9998 would be 1001 1001 1001 1000. How to write c program to convert this ?

Anyone help.

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