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git://projects.qi-hardware.com/nn-usb-fpga.git
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60 lines
1.5 KiB
C
60 lines
1.5 KiB
C
/*
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JZ47xx test gpio
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Copyright (C) 2010 Andres Calderon andres.calderon@emqbit.com
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Carlos Camargo cicamargoba@unal.edu.co
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
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#include <stdio.h>
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#include <unistd.h>
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#include "jz47xx_gpio.h"
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//#define TEST_PORT JZ_GPIO_PORT_C
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//#define TEST_PIN 17
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int
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main (int argc,char *argv[])
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{
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int TEST_PORT, TEST_PIN;
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if(argc != 3){
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fprintf(stderr,"\nUsage: %s TEST_PIN_PORT(A=0, B=1, C=2, D=3) TEST_PIN \n",argv[0]);
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}
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TEST_PORT = 17;
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TEST_PIN = 17;
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JZ_PIO *pio = jz_gpio_map (TEST_PORT);
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if (!pio)
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return -1;
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jz_gpio_as_output (pio, TEST_PIN);
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int tg = 1;
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while (1)
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{
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jz_gpio_out (pio, TEST_PIN, tg);
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printf ("[%d]", jz_gpio_get_pin (pio, TEST_PIN));
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fflush (stdout);
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usleep (500 * 1000);
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tg = !tg;
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}
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return 0;
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}
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