main.c

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#include "hw/hw_boot.h"
#include "cfg/cfg_ser.h"

#include <net/xmodem.h>

#include <cfg/compiler.h>
#include <cfg/debug.h>
#include <cfg/macros.h> /* BV() */

#include <drv/ser.h>
#include <drv/timer.h>
#include <drv/flash_avr.h>

#include <string.h>

#include <avr/wdt.h>

/*
 * Watchdog disable.
 *
 * This function disable the watchdog timer early after a reset.
 * We must do it very soon because new AVR cores do not disable
 * the watchdog timer after a cpu reset. In this way the watchdog
 * timer is still enabled, continuously resetting the cpu. This is
 * necessary only with new AVR cores, for other cores this code has
 * no effect.
 *
 * \{
 */
// Function prototype of watchdog reset.
void wdt_init(void) __attribute__((naked)) __attribute__((section(".init3")));
// Function implementation of watchdog reset.
void wdt_init(void)
{
    MCUSR = 0;
    wdt_disable();

    return;
}
/* \} */

int main(void)
{
    FlashAvr flash;
    Serial ser;


    // Set up flash programming functions.
    flash_avr_init(&flash);

    IRQ_ENABLE;

    BOOT_INIT;

    kdbg_init();
    timer_init();

    /* Open the main communication port */

    ser_init(&ser, CONFIG_BOOT_PORT);
    ser_setbaudrate(&ser, CONFIG_BOOT_BAUDRATE);

    xmodem_recv(&ser.fd, &flash.fd);

    kfile_close(&flash.fd);
    kfile_close(&ser.fd);

    IRQ_DISABLE;

    BOOT_END;

    START_APP();

}