programming atMega wirelessly

Other Hardware 3rd Party Boards
1

Hi!
I'm trying to upload sketches wirelessly to an atMega 328.
I'm using the HC-05 bluetooth module connected to the atMega chip.
The onboard bootloader is the optiboot 4_4.
The selected board in arduino ide is UNO.
The bt module is correctly setted at 115200 baud.
I release the reset button as soon as the verbose output shows " setting dtr"
The upload is succesfull but I alwais get the same error:

avrdude: 2220 bytes of flash written
avrdude: verifying flash memory against C:\Users\YOUGAR~1\AppData\Local\Temp\build7183738074147691639.tmp\ASCIITable.cpp.hex:
avrdude: load data flash data from input file C:\Users\YOUGAR~1\AppData\Local\Temp\build7183738074147691639.tmp\ASCIITable.cpp.hex:
avrdude: input file C:\Users\YOUGAR~1\AppData\Local\Temp\build7183738074147691639.tmp\ASCIITable.cpp.hex contains 2220 bytes
avrdude: reading on-chip flash data:

Reading | avrdude: Send: U [55] . [00] . [00]   [20] 
avrdude: Recv: 
avrdude: Recv: 
avrdude: Send: t [74] . [00] . [80] F [46]   [20] 
avrdude: Recv: 
avrdude: Recv: 
avrdude: Recv: 

avrdude: stk500_paged_load(): (a) protocol error, expect=0x14, resp=0x5d
avrdude: Send: V [56]   [20] . [00] . [00] . [00]   [20] 
avrdude: Recv: 
avrdude: stk500_cmd(): programmer is out of sync

this is the part of the verbose output that I got uploading the ASCII TABLE example that comes with the arduino ide.
The sketch runs perfectly, as well as any other sketch I upload, but I always get the same error, at the same point.
Also, the serial monitor communication works fine
It seems the error comes out when avrdude starts verifing
I also tried :

  • to use a slower bootloader (19200),
  • another bluetooth module,
  • windows xp
  • windows 7
    Always the same error...
    I'm using the Toshiba bluetooth stack, it's the only one able to "talk" to these cheap modules.
    I also got working autoreset feature connecting the led output through a capacitor to the atMega reset
    Any suggestion to overcome this problem?
2

1.go bluetooth settings and unselect autoconnect.
2.make bt connection .
3.open window in bt devices that show signal strenght.
4.upload sketch as usual.
5.when ide start burn your skech in the chip make series of short reset presses as long you see data start sent and receive(look signal stenght window to see data flow)