Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
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

In my Verilog module in quartus 2 i already have 2 output(ledr and ledg), with the right pin assignment, but in my application how can i manage the second LED?

to make them blink i wrote: 

IOWR_ALTERA_AVALON_PIO_DATA(LED_PIO_BASE, 1);
usleep(500000);
IOWR_ALTERA_AVALON_PIO_DATA(LED_POI_BASE, 0);
Edit:

my verilog module is: 


module test(clk,rst,button,ledr,ledg);
input clk,rst,button;
output ledg,ledr;
nios2 test_nios (clk,rst,button,ledg,ledr);
endmodule