bootloaderconfig.h

USB Boot Loader for ATMega 8 通过软件方法实现USB功能

/*
  bootloaderconfig.h - part of AVRUSBBoot firmware

  Thomas Fischl <[e-mail]>

  License:
  The project is built with AVR USB driver by Objective Development, which is
  published under a proprietary Open Source license. To conform with this
  license, USBasp is distributed under the same license conditions. See
  documentation.

  Creation Date..: 2006-03-18
  Last change....: 2006-06-25

  To adapt the bootloader to your hardware, you have to modify the following files:
  - bootloaderconfig.h (this file):
    Define the condition when the bootloader should be started and the initialisation of the
    hardware
  - usbconfig.h:
    Define the used data line pins. You have to adapt USB_CFG_IOPORT, USB_CFG_DMINUS_BIT and 
    USB_CFG_DPLUS_BIT to your hardware. The rest should be left unchanged.
*/

#ifndef __bootloaderconfig_h_included__
#define __bootloaderconfig_h_included__

#define BOOTLOADER_INIT \
    PORTB = 0xff;       \
    DDRB  = 0;          \
    PORTC = 0xff;       \
    DDRC  = 0;          \
    PORTD = 0xfa;       \
    DDRD  = 0x02;

#define BOOTLOADER_CONDITION ((PINC & (1 << PC2)) == 0)

#endif /* __bootloader_h_included__ */