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How are the leds wired? #2

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baruch opened this issue Feb 12, 2015 · 3 comments
Closed

How are the leds wired? #2

baruch opened this issue Feb 12, 2015 · 3 comments

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@baruch
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baruch commented Feb 12, 2015

The CC/CV signal seems to come from the bottom board, how is it then relayed to the leds? How/who lights up the active led?
@baruch
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baruch commented Feb 12, 2015

The red led at the bottom is controlled by port 11 / PB5. Still need to check if that is not getting driven by the bottom board.

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baruch commented Feb 17, 2015

I suspect the two upper leds are controlled through the 74HC595 units, these have 16 bit outputs but only 12 are needed for the 7-segment 4-digit units so four extra bits are available for additional controls.

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baruch commented Feb 20, 2015

With the schematics done by flex we now know the full connectivity.

@baruch baruch closed this as completed Feb 20, 2015
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@baruch