BCD switsch

[fmw]

Hi

I will build a display with use of a BCD switsch.

Can anybody explamin me the function of the BCD.

Ther is more type of the BCD, decimal and hex.

How is it function and how are you connect it to the FSKEY

Regards

Finn
Denmark

[mbessler]

Original geschrieben von fmw
Hi

I will build a display with use of a BCD switsch.

Can anybody explamin me the function of the BCD.

Ther is more type of the BCD, decimal and hex.

How is it function and how are you connect it to the FSKEY

Regards

Finn
Denmark

BCD stands for Binary Coded Decimal.

It basically means that you code the decimal system in a binary means.
eg. for each digit in your decimal number, you use 4 bits binary.
This looks like this:

decimal
 number  |  BCD
      0  |      0000
      1  |      0001
      2  |      0010
      3  |      0011
      4  |      0100
      5  |      0101
      6  |      0110
      7  |      0111
      8  |      1000
      9  |      1001
     10  | 0001 0000
     11  | 0001 0001
     ...
     20  | 0010 0000
     21  | 0010 0001
     ...
    123  |    0001 0010 0011

Hope it helps.

[fmw]

Hi

Thanks for the information, thats help.

Witch MCD switsch are you recomand to use with the FSBUS, an how are the connected?

Regards
Finn

Hi simmer,

endlich mal eine Homepage, die es sich lohnt anzuschauen.
Gute (vergrößerbare) Bilder seines Projekts!

Very nice, Finn, your homepage and the pics.
Rico

[tuomas]

Dirk, if you are reading this, can you write a quick comment - I have also been thinking of BCD switches as for the gauge knobs (those are small, the ALPS ones I have are 15mm deep, too much for the panel in front of the screen - great for other uses)

So do BCD switches work with FSBUS? I remember seeing something about it on the docs, but since I dont have any at hand, if someone is using them, it would be interesting to know.

Thanks

Tuomas