test_gpio.c

来自「arm开发的一些小实验,开发工具ads1.2,multi-ice,实验开发板 s」· C语言 代码 · 共 31 行

#include "2410addr.h"
#include "Option.h"
#include "Def.h"

void gpio_init(void)
{
	rGPACON |= 0x2000;
	rGPADAT &= (~(0x2000));
}

void gpio_exit(void)
{
	rGPACON &= ~(0x2000);
	rGPADAT |= 0x2000;
}

int main(void)
{
	int i,j;
	char ret[7] = {0x7,0x3,0xb,0x9,0xd,0xc,0xe};
	
	gpio_init();
	while(1) {
		for(i=0;i<7;i++) {
			(*(volatile unsigned char *)(0x10000006)) = ret[i];
			for(j=0;j<5000;j++);
		}
	}
	gpio_exit();
	return 0;
}