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代码设计如下，具体看源工程
/* * "Hello World" example. * * This example prints ‘Hello from Nios II‘ to the STDOUT stream. It runs on * the Nios II ‘standard‘, ‘full_featured‘, ‘fast‘, and ‘low_cost‘ example * designs. It runs with or without the MicroC/OS-II RTOS and requires a STDOUT * device in your system‘s hardware. * The memory footprint of this hosted application is ~69 kbytes by default * using the standard reference design. * * For a reduced footprint version of this template, and an explanation of how * to reduce the memory footprint for a given application, see the * "small_hello_world" template. * */ #include "system.h" #include "altera_avalon_pio_regs.h" #include <stdio.h> #include <unistd.h> int main() { int i; printf("Hello from Nios II!\n"); while(1) { for( i=0; i<4; i++ ) { IOWR_ALTERA_AVALON_PIO_DATA( LED_PIO_BASE, 1<<i ); usleep( 1000000 );//each one 0.5s delay } } return 0; } |
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原文地址：http://www.cnblogs.com/logic3/p/5228857.html
