RIOT/dist/tools/lpc2k_pgm/src/control_2xxx.c

/*
 * LPC 2000 Loader, http://www.pjrc.com/arm/lpc2k_pgm
 * Copyright (c) 2004, PJRC.COM, LLC, <paul@pjrc.com>
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the
 * Free Software Foundation; version 2 of the License.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
 * Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */

#include "control_2xxx.h"

#include <stdio.h>
#include <time.h>
#include <unistd.h>

#include "serial.h"

void hard_reset_to_bootloader(void)
{
    /*  Use this lines for flashing a node with interrupted DTR line */
    /*  printf("Press Reset - confirm with anykey\n");
    getchar();
    */
    printf("Reset CPU (into bootloader)\r\n");
    set_rts(1);     // RTS (ttl level) connects to P0.14
    /* the next two lines should be commented for the prepared node */
    set_dtr(1);     // DTR (ttl level) connects to RST
    send_break_signal();    // or break detect circuit to RST
    usleep(75000);
    /*  Use this lines for flashing a node with interrupted DTR line */
    /* printf("Release Reset - confirm with anykey\n");
    getchar();
    */
    set_dtr(0);     // allow the CPU to run:
    set_baud(baud_rate);
    set_rts(1);     // set RTS again (as it has been reset by set_baudrate)
    usleep(40000);
}

void hard_reset_to_user_code(void)
{
    printf("Reset CPU (into user code)\r\n");
    set_rts(0);     // RTS (ttl level) connects to P0.14
    set_dtr(1);     // DTR (ttl level) connects to RST
    send_break_signal();    // or break detect circuit to RST
    usleep(75000);
    set_dtr(0);     // allow the CPU to run
    usleep(40000);
}