Hardware Design: SIE

Hardware Design: SIE Git Source Tree

1	/*
2	JZ47xx test gpio
3
4	Copyright (C) 2010 Andres Calderon andres.calderon@emqbit.com
5	Carlos Camargo cicamargoba@unal.edu.co
6
7	This program is free software; you can redistribute it and/or modify
8	it under the terms of the GNU General Public License as published by
9	the Free Software Foundation; either version 2 of the License, or
10	(at your option) any later version.
11
12	This program is distributed in the hope that it will be useful,
13	but WITHOUT ANY WARRANTY; without even the implied warranty of
14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15	GNU General Public License for more details.
16
17	You should have received a copy of the GNU General Public License
18	along with this program; if not, write to the Free Software
19	Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
20
21	#include <stdio.h>
22	#include <unistd.h>
23
24	#include "jz47xx_gpio.h"
25
26	//#define TEST_PORT JZ_GPIO_PORT_C
27	//#define TEST_PIN 17
28
29	int
30	main (int argc,char *argv[])
31
32	{
33	int TEST_PORT, TEST_PIN;
34
35	if(argc != 3){
36	fprintf(stderr,"\nUsage: %s TEST_PIN_PORT(A=0, B=1, C=2, D=3) TEST_PIN \n",argv[0]);
37	}
38
39	TEST_PORT = JZ_GPIO_PORT_C;
40	TEST_PIN = 17;
41	JZ_PIO *pio = jz_gpio_map (TEST_PORT);
42
43	if (!pio)
44	return -1;
45
46	jz_gpio_as_output (pio, TEST_PIN);
47
48	int tg = 1;
49
50	while (1)
51	{
52	jz_gpio_out (pio, TEST_PIN, tg);
53	printf ("[%d]", jz_gpio_get_pin (pio, TEST_PIN));
54	fflush (stdout);
55	usleep (500 * 1000);
56	tg = !tg;
57	}
58	return 0;
59	}
60

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