some digital content

[jbv]

RE :
	Date: Fri, 11 Apr 1997 12:40:21 -0600 (CST)
   From: POLARIS at VAX1.Mankato.MSUS.EDU

   I know this may be strechting the limits of synth-diy's charter a
bit, but..

Digital is completely fine for this forum.  Perhaps you were thinking
of Analogue-Heaven?  Nah, AH is reserved for boasting about how much
you paid for your synth.  

   I'm designing a digital sequencer for my modular which uses a 2k x
8bit
   SRAM chip (2016, I think) and A/D and D/A converters.  The part that
   has me consfused is how to display the address number on a 4-digit
   LED readout.  It will be an 11-bit binary number, and I've only
   seen BCD-to-seven-segment decoders, not something to convert big
binary
   numbers to multi-digit displays. 


--------------------

I didn't spend more than one minute on the problem, but why don't you
use a ROM ? At first glance, I find it worth exploring that direction...
The ROM would be adressed in 8 bits like the RAM, and its outputs would
drive the BCD-segments. 
Of course, you would have to design "by hand" the code to burn into the
ROM,
(and even perhaps be forced to use more than one ROM if several
BCD-segments),
but I think the confort and ergonomics of the final result are worth
handling this painstaking task.

All the best - jbv