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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

LED_PIO_BASE is 2 bit wide so it can control both the LEDs. if you want both the LEDs to blink together, try this code:

IOWR_ALTERA_AVALON_PIO_DATA(LED_PIO_BASE, 3);

delay(500000);

IOWR_ALTERA_AVALON_PIO_DATA(LED_PIO_BASE, 0);