1、程序在nios中编译没有问题，但是不能在iss中单步调试 在ISS中调试出现如下问题： Error! : Unable to load memory block at address 0x0 from ELF file Debug/leds.elf
Fatal Error! : Memory map is not consistent with memory image file - check that
file 'Debug/leds.elf' is compiled and linked for system 'E:\DOCUMENT\FPGA\EXPERI
MENT\BLOCKWY\NIOS32.ptf' 2、如何把一个变量的值写到I/O端口中去。程序段如下： if(other_zd)
led_buff|=0x08;
else led_buff&=0xf7;
if(other_fd)
led_buff|=0x04;
else led_buff&=0xfb;
if(other_zx)
led_buff|=0x02;
else led_buff&=0xfd;
if(other_fx)
led_buff|=0x01;
else led_buff&=0xfe;
现在我要把led_buff的值写到地址为0x00204890的I/O口去，怎么办？ IOWR(0x00204890, 0, led_buff);对吗？？？
[此贴子已经被作者于2006-12-7 11:10:34编辑过] | 
