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Altera_Forum's avatar
Altera_Forum
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15 years ago

2 Leds -> how many PIO?

Hi all, I'm writing a simple program on interrupt behaviour, with an interval timer (that generate timer interrupt and its handler make a ledg blink) and an hardware interrupt generated by a bu...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

Of course, you can use the same PIO to control both the LEDs... for this you have to introduce an extra output signal in your HDL module and link this signal to the second bit of the PIO (you do it where you instantiated your NiosII module in QuartusII). Now make a pin assignment for this new signal to the desired LED in the board. Now the second bit of the PIO is connected to the other LED...