NIOSii 软件设计碰到一个问题
额 这是第一次接触这个，我按照网上的教程配置了一个CPU点亮LED,以下是程序：/*
* "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 "stdio.h"
#include "unistd.h"
#include "system.h"
#define _LED 1
typedef struct
{
unsigned long int DATA;
unsigned long int DIRECTION;
unsigned long int INTERRUPT_MASK;
unsigned long int EDGE_CAPTURE;
}PIO_STR;
#ifdef _LED
#define LED((PIO_STR *)PIO_LED_BASE)
#endif
int main()
{
int i;
while(1)
{
for(i=0;i<8;i++){
LED->DATA=1<<i;
usleep(50000);
}
}
return 0;
}
但在编译时 提示 LED没有定义？求高手解答！ “#define LED((PIO_STR *)PIO_LED_BASE)”中，“#define LED"和”((PIO_STR *)PIO_LED_BASE)“之间没有空格吗？
像这样：#define LED ((PIO_STR *)PIO_LED_BASE) mitchell 发表于 2013-11-7 16:08 static/image/common/back.gif
“#define LED((PIO_STR *)PIO_LED_BASE)”中，“#define LED"和”((PIO_STR *)PIO_LED_BASE)“之间没有空 ...
额。谢谢你啊了，笔误啊。，。。。 我也遇到了同样的问题！都是新手啊{:lol:}
页:
[1]