2.3-InternetRadio/nutos/nut/hwtest/arm/atmel/7segtst/7segtst.c

/*
 * Copyright (C) 2009 by Rittal GmbH & Co. KG,
 * Ulrich Prinz <prinz.u@rittal.de>
 *
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the copyright holders nor the names of
 *    contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
 * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 * For additional information see http://www.ethernut.de/
 */

/*
 * \verbatim
 * $Id: 7segtst.c 3108 2010-09-15 21:11:15Z Astralix $
 * \endverbatim
 */

/*
 * Revision 1.0  2009/04/13 ulrichprinz
 * First checkin, new twi driver for AS1108 3 Digit 7-Segment driver
 * (currently SAM7X256 is tested only)
 *
 */

/*!
 * \example 7segtst/7segtst.c
 *
 * TWI driver for AS1108 3 Digit 7-Segment driver.
 */

#include <cfg/os.h>
#include <io.h>
#include <stdio.h>

#include <dev/board.h>
#include <dev/spi_7seg.h>

/* 7-Segment connection definition
 * correct these to the port and bus you use
 */

/* SPI-Chipselect of the Display driver */
#define NUT_CONFIG_7SEG_CS 1

/* SPI-Bus the driver is connected to */
#define NUT_CONFIG_7SEG_SPIBUS spiBus0At91

/* FILE handle for display */
FILE *disp;

/*
 * Main application routine.
 *
 * Nut/OS automatically calls this entry after initialization.
 */
/******************************************************************/
int main(void)
/******************************************************************/
{
    uint32_t baud = 115200;
    uint8_t rc;
    unsigned int count=0;

    /*
     * Register the UART device, open it, assign stdout to it and set
     * the baudrate.
     */
    NutRegisterDevice(&DEV_DEBUG, 0, 0);
    freopen(DEV_DEBUG_NAME, "w", stdout);
    _ioctl(_fileno(stdout), UART_SETSPEED, &baud);

    /*
     * Register 7-Segment chip at the SPI bus.
     */
    printf("initSPI_disp7seg... ");

    rc = NutRegisterSpiDevice(&devSpi7SEG,&NUT_CONFIG_7SEG_SPIBUS,NUT_CONFIG_7SEG_CS);
    if (rc != 0){
        /* If it fails, leave a message and end here */
        printf("FAILED\n");
        fflush(stdout);
        while(1);
    }
    printf("OK\n");

    /* The driver implements simple printf support for the display
     * so it can be opened as a file and used by fprintf()
     */
    disp = fopen( devSpi7SEG.dev_name, "w");

    for (;;)
    {
        /* Lets run a counter for a simple demo */
        fprintf( disp, "%3d\n", count++);
        if(count >999)count=0;
        NutSleep(200);
    }
    return 0;
}