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Guest
Posted: Thu Feb 15, 2007 7:30 am
How to show 8 bit binary number to 7 segment bcd display ????
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Ken Smith
Posted: Sat Feb 17, 2007 7:12 am
Guest
In article <m0rdt2pd968o84le8n8r5ekbl60c8itb8t@4ax.com>,
John Fields <jfields@austininstruments.com> wrote:
Quote:
On 15 Feb 2007 03:30:54 -0800, heman_too_cool@yahoo.co.in wrote:

How to show 8 bit binary number to 7 segment bcd display ????

---
Load the 8 bit number into an 8 bit binary down counter while at the
same time clearing four cascaded BCD up counters.

Make that 3 BCD counters, and better yet make them CD4033s.




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kensmith@rahul.net forging knowledge
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John Fields
Posted: Sat Feb 17, 2007 7:59 am
Guest
On 15 Feb 2007 03:30:54 -0800, heman_too_cool@yahoo.co.in wrote:

Quote:
How to show 8 bit binary number to 7 segment bcd display ????

---
Load the 8 bit number into an 8 bit binary down counter while at the
same time clearing four cascaded BCD up counters.

Start both counters and use the same clock for both of them.

When the binary counter gets to zero stop both counters.

The BCD counter chain will now have as its output the BCD equivalent
of the 8 bit number loaded into the binary counter.

Connect the outputs of the BCD counters to your favorite BCD to 7
segment decoders and connect their outputs (through resistors) to
your favorite 7 segment displays.

Voila! Binary to decimal converter and display...


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JF
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John Fields
Posted: Sat Feb 17, 2007 1:41 pm
Guest
On Sat, 17 Feb 2007 17:12:37 +0000 (UTC), kensmith@green.rahul.net
(Ken Smith) wrote:

Quote:
In article <m0rdt2pd968o84le8n8r5ekbl60c8itb8t@4ax.com>,
John Fields <jfields@austininstruments.com> wrote:
On 15 Feb 2007 03:30:54 -0800, heman_too_cool@yahoo.co.in wrote:

How to show 8 bit binary number to 7 segment bcd display ????

---
Load the 8 bit number into an 8 bit binary down counter while at the
same time clearing four cascaded BCD up counters.

Make that 3 BCD counters, and better yet make them CD4033s.

---
Yup, and good idea. :-)


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JF
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