PS C:\Users\x\Desktop\arduino-1.6.9\hardware\tools\avr\bin> avrdude -p m1284p -c arduino -P COM12

avrdude.exe: AVR device initialized and ready to accept instructions

Reading | ################################################## | 100% 0.02s

avrdude.exe: Device signature = 0x1e9705

avrdude.exe: safemode: Fuses OK

avrdude.exe done.  Thank you.

PS C:\Users\x\Desktop\arduino-1.6.9\hardware\tools\avr\bin> avrdude -p m1284p -c arduino -P COM12 -Uflash:w:main_board_1753.hex

avrdude.exe: AVR device initialized and ready to accept instructions

Reading | ################################################## | 100% 0.02s

avrdude.exe: Device signature = 0x1e9705
avrdude.exe: NOTE: FLASH memory has been specified, an erase cycle will be performed
             To disable this feature, specify the -D option.
avrdude.exe: erasing chip
avrdude.exe: reading input file "main_board_1753.hex"
avrdude.exe: input file main_board_1753.hex auto detected as Intel Hex
avrdude.exe: writing flash (108174 bytes):

Writing | ################################################## | 100% 20.21s

avrdude.exe: 108174 bytes of flash written
avrdude.exe: verifying flash memory against main_board_1753.hex:
avrdude.exe: load data flash data from input file main_board_1753.hex:
avrdude.exe: input file main_board_1753.hex auto detected as Intel Hex
avrdude.exe: input file main_board_1753.hex contains 108174 bytes
avrdude.exe: reading on-chip flash data:

Reading | ####                                               | 8% 1.79s
avrdude.exe: stk500_paged_load(): (a) protocol error, expect=0x14, resp=0x91
avrdude.exe: stk500_cmd(): programmer is out of sync
PS C:\Users\x\Desktop\arduino-1.6.9\hardware\tools\avr\bin>