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Altera_Forum
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11 years ago

Selecting the correct Altera CPLD for LED signal decodings

Hello! I am new to this forum and also to CPLDs... I am working on a project and in the middle it has been decided to include a more advanced LED panel than what was planned initially. This woul...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
11 years ago

Alright....

even if there are only 40 flip flops in the 5M40Z, are all the 54 IO pins accessible?

Can multiplexing help? In the sense that not all 48 LEDs will be ON simultaneously. For half the duty cycle the first 24 will be signaled and during the other half of the duty cylcle the remaining 24 LEDs will be signaled. In this manner we would require only 24 Flip Flops, multiplexed to different set of IO.

Is this possible?