7 Segment LED Display - BASYS board

Hi,

I have a chip top which has an 8-bit output "out[7:0]". I am
implementing it on a BASYS board which uses Xilinx Spartan 3E. I would
like to see the 8-bit output on the seven segment LED display. How can
I do this?

Do I need to add any additional Verilog code to do this? Please help.

Thanks,

Happy new year,

A seven segment display can show the status of 4 bits by displaying a
digit, or it can display 8 bits by connecting each bit to one segment
plus the decimal point if the display has one. That would be very
hard to interpret, but if you are a 7 segment savant, you might be
able to pull it off.

Otherwise, you might think about displaying two 4 bit digits in
succession. It would need to show one digit, a brief delay and the
second digit, followed by a longer delay before repeating. Think you
can work with that?

Rick

On Dec 31, 4:07*pm, Digi Suji <[email protected]> wrote:
> Hi,
>
> I have a chip top which has an 8-bit output "out[7:0]". I am
> implementing it on a BASYS board which uses Xilinx Spartan 3E. I would
> like to see the 8-bit output on the seven segment LED display. How can
> I do this?
>
> Do I need to add any additional Verilog code to do this? Please help.
>
> Thanks,

On Wed, 31 Dec 2008 13:07:00 -0800 (PST), Digi Suji
<[email protected]> wrote:

>Hi,
>
>I have a chip top which has an 8-bit output "out[7:0]". I am
>implementing it on a BASYS board which uses Xilinx Spartan 3E. I would
>like to see the 8-bit output on the seven segment LED display. How can
>I do this?
>
>Do I need to add any additional Verilog code to do this? Please help.
>
>Thanks,

According to the BASYS reference manual
(http://www.digilentinc.com/Data/Prod...BASYS_C_rm.pdf) the
board has 8 individual LEDs. The ref manual shows they are connected
to GND, so setting an LED pin HI ('1') will light the LED. So in your
upper level code, connect "out[7:0]" to "leds[7:0]". You will need to
check the UCF file for the exact pin names.
The 7-segment display is multiplexed, which means that for example,
segment A of each digit is connected together, and there is a separate
control/enable pin for each digit. Chances are there is code on the
Digilent web site, or provided with the board, to drive the LED
display.
-Dave Pollum