piotest.c

基于fpga和sopc的用VHDL语言编写的EDA的32位Nios CPU嵌入式系统及其DMA设计俄罗斯方块游戏机

#include "nios.H"

int main(void)
{
	
	int a,b;
	na_ain_pio->np_piodirection = 0x0;
	na_bin_pio->np_piodirection = 0x0;
	na_cout_pio->np_piodirection = 0xff;

	while(1)
	{
		a = na_ain_pio->piodata;
		b = na_bin_pio->piodata;
		na_cout_pio->pio_data = nm_mul(a,b);
	}
}