On Fri, Apr 01, 2005 at 02:15:52PM +1200, Jinx wrote:
> Just curious - What is/was the purpose of Code B for 7-seg displays ?

It imagine a code B driver would be useful in situations where a
microcontroller (where one is free to create custom character maps) is
not available, and regular drivers like the 7447/4511's hex output is not
desirable.

Negative sign and leading blank seem especially useful, but I've never
used one.


FYI for others...

Code B provides a negative sign, some letters and a blank for leading
zeros to be blanked when multiple displays are used

DEC     0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
HEX     0 1 2 3 4 5 6 7 8 9 A  B  C  D  E  F
CODE B  0 1 2 3 4 5 6 7 8 9 -  E  H  L  P  (blank)

-v
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