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Altera_Forum
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17 years ago

Has anyone driven the 7-segment displays on the Cyclone III Development Board?

I have been trying to talk to the 4 digit 7-segment display on the Cyclone III development board. The Altera support guys refer me to similar projects using the Cyclone II but I think that developme...
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Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

This today from Altera Support this is issue:

Hi Thomas

Thanks for the project file provided. Here we managed to duplicate the dim 7-segment LED issue.

Checking through the development kit details:

I/O bank 8 has DDR2 SDRAM memory which use the 1.8 V SSTL signaling standard, unfortunately the 7-segment LED is in connected to I/O bank 8, it cause the 7-segment LED under power. Locating 7-segment LED in I/O bank 8 is due to insufficient I/O in EP3C120F780.

I sincerely regret that I could not better assist you regarding this issue due to some limitation. Sorry for any inconvenience. I sincerely hope that we may serve in more convenient way in the future. Thanks for using mySupport.

Best regards

Ai Phing