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Altera_Forum
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16 years ago

User LEDs 2 - 4 on NEEK, Cyclone III

NEEK Cyclone III cycloneIII_3c25_niosII_standard_sopc.sopcinfo How do I blink LEDs 2 - 4? Below code blinks LED1. Also, any references to documents where I could have figured this out ...
Altera_Forum's avatar
Altera_Forum
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16 years ago

I did look at the example project that I have (which is a bit old) and it seems the led pin assignments are a bit goofy.

LED0 is P13 (correct)

LED1 is T1 (not correct, goes to HSMC connector) should be N12

LED2 is N12 - should be P12

LED3 is N9 (correct).

If memory serves, I believe they did this because of some conflict with the DDR pins (too many pins toggling near a VREF pin).

Jake