Hardware Design: SIE
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| 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 | |
| 34 | if(argc != 3){ |
| 35 | fprintf(stderr,"\nUsage: %s TEST_PIN_PORT(A=0, B=1, C=2, D=3) TEST_PIN \n",argv[0]); |
| 36 | } |
| 37 | |
| 38 | JZ_PIO *pio = jz_gpio_map (TEST_PORT); |
| 39 | |
| 40 | if (!pio) |
| 41 | return -1; |
| 42 | |
| 43 | jz_gpio_as_output (pio, TEST_PIN); |
| 44 | |
| 45 | int tg = 1; |
| 46 | |
| 47 | while (1) |
| 48 | { |
| 49 | jz_gpio_out (pio, TEST_PIN, tg); |
| 50 | printf ("[%d]", jz_gpio_get_pin (pio, TEST_PIN)); |
| 51 | fflush (stdout); |
| 52 | usleep (500 * 1000); |
| 53 | tg = !tg; |
| 54 | } |
| 55 | return 0; |
| 56 | } |
| 57 |
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