[avr-gcc-list] Re: avarice: JTAG ICE: Cannot synchonise

[Shaun Jackman]

Some debug trace info for you. The problem seems to be that the AVR
Dragon sends two packets with a sequence number of 110 in a row, when
avarice is expecting the sequence number 111.

Thanks,
Shaun

command[0x0b, 1]: 0B 01
recv: 0xbf

command[0x0b, 2]: 0B 01
recv: 0x1b
recv: 0x6e
recv: 0x00
recv: 0x01
recv: 0x00
recv: 0x00
recv: 0x00
recv: 0x0e
sDATA: reading 1 bytes
read:  80
recv: 0x7e
recv: 0xe1
CRC OK
Got message seqno 110 (command_sequence == 110)
response: 80

command[0x08, 1]: 08
recv: 0x1b
recv: 0x6e
recv: 0x00
recv: 0x01
recv: 0x00
recv: 0x00
recv: 0x00
recv: 0x0e
sDATA: reading 1 bytes
read:  80
recv: 0x7e
recv: 0xe1
CRC OK
Got message seqno 110 (command_sequence == 111)

got wrong sequence number, 110 != 111
recv: 0x1b
recv: 0xff
recv: 0xff
recv: 0x06
recv: 0x00
recv: 0x00
recv: 0x00
recv: 0x0e
sDATA: reading 6 bytes
read:  e0 00 00 00 00 00
recv: 0x4e
recv: 0x2d
CRC OK
Got message seqno 65535 (command_sequence == 111)

got asynchronous event: 0xe0
recv: 0xbf

command[0x08, 2]: 08
recv: 0x1b
recv: 0xff
recv: 0xff
recv: 0x06
recv: 0x00
recv: 0x00
recv: 0x00
recv: 0x0e
sDATA: reading 6 bytes
read:  e0 00 00 00 00 00
recv: 0x4e
recv: 0x2d
CRC OK
Got message seqno 65535 (command_sequence == 111)

got asynchronous event: 0xe0
recv: 0xbf

On 7/5/07, Shaun Jackman <address@hidden> wrote:
> Reading the contents of flash using debugWire seemed to succeed, but
> later failed with `Cannot synchronise'. Any idea why?
>
> AVR Dragon HW 0106 SW 0101 0109
> AT90PWM3B
>
> What's the best mailing list for avarice-related questions?
>
> Thanks,
> Shaun
>
> $ avarice -gwjusb -B1000 -vf foo.bin
> AVaRICE version 2.6.20070222, Jul  5 2007 17:32:54
>
> JTAG config starting.
> Found a device: AVRDRAGON
> Serial number:  00:a2:00:00:2c:1c
> Reported debugWire device ID: 0x9383
> Configured for device ID: 0x9383 at90pwm2b
> JTAG config complete.
> Warning: File format unknown, assuming binary.
>
> Verifying 
> FLASH.........................................................................................................
>
> Download complete.
> JTAG ICE: Cannot synchronise