Upload only Power on Reset

[wucharinton]

IDE 1.6.13 Dualboot Loader only can upload sketch only power on reset. The next sketch upload will confront STK500 Time Out!!!.

I fix the board.txt by using wire protocol. Here is my board.

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microbridge.name=Arduino Mega 2560 (DUAL SD Bootloader)

microbridge.upload.tool=avrdude
//microbridge.upload.protocol=stk500v2
microbridge.upload.protocol=wiring
microbridge.upload.maximum_size=253952
microbridge.upload.speed=115200

microbridge.bootloader.tool=avrdude
microbridge.bootloader.low_fuses=0xFF
microbridge.bootloader.unlock_bits=0x3F
microbridge.bootloader.lock_bits=0x0F

microbridge.bootloader.high_fuses=0xD8
microbridge.bootloader.extended_fuses=0xFD
microbridge.bootloader.path=microbridge
microbridge.bootloader.file=microbridge/stk500boot_v2_mega2560.hex

microbridge.build.mcu=atmega2560
microbridge.build.f_cpu=16000000L
microbridge.build.board=AVR_MEGA2560
microbridge.build.core=arduino:arduino
microbridge.build.variant=arduino:mega