Duet3 Bossa firmware flash fails

judicar

Duet3 MB6HC 1.0 (3.0beta12)

I received this board and out of box everything worked until I attempted to flash it over ethernet via DWC. The board stopped responding over ethernet and USB (I read earlier that the ethernet is unreliable in 3.0 beta).

I followed steps for flashing board using Bossa 1.9.1 but it always returns 'Flash failed' at 6%.

Reboot with Erase jumper installed.
Remove Erase jumper.
Attempt to flash with Bossa either through UI or command line fails.

$ sudo bossac -e -w -v -b -d -U -p cu.usbmodem144201 ./Duet3Firmware_MB6HC.bin -R
...
go(addr=0x20401020)
writeWord(addr=0x400e0c04,value=0x5a004301)
[= ] 6% (68/1110 pages)write(addr=0x20401034,size=0x200)
writeWord(addr=0x20401028,value=0x408800)
writeWord(addr=0x2040102c,value=0x20401034)
readWord(addr=0x400e0c08)=0x469c4662

Flash command failed

Any ideas? Verify also fails, but read succeeds.

Danal

Your input file is './Duet3Firmware_MB6HC.bin' Where did that originate?

Also you have the -U -p and -R flags specified. You don't need them. In particular, bossac will auto discover the port. Try:

bossac -e -w -v -b /opt/dsf/sd/sys/Duet3Firmware_MB6HC.bin

A Former User

@judicar the only other instance of something similar I've seen was resolved by trying another usb cable. It's it the exact same address it falls at each time?

judicar

@bearer It fails at different points with different versions of firmware. I assume 0x400e0c08 is some register that contains the result of whatever operation its trying to perform.

A Former User

Odd, the target is "dead" and shouldn't react differently afaik.

I suspect @droftarts may know a thing (or 2000) about this. Meanwhile I'd give another cable a go.

judicar

@Danal I should've mentioned this running standalone

Danal

Standalone when running, got it. At the same time, per the "sudo" you are bossac-ing from unix/linux/pi, correct? If so, I would seriously consider changing the flags.

And, as mentioned above, try different USB cables.

judicar

Looks like it's a bug in the macOS/BSD version of Bossa. Dug up an old pc and it flashes fine with the Windows version. Thanks for the assistance.

A Former User

If you kept the complete debug output could you add it to pastebin or directly in the issue on github, maybe it helps get it fixed.

https://github.com/shumatech/BOSSA/issues/106

(or if you wanna get down and dirty try testing https://github.com/shumatech/BOSSA/pull/121 if you only make bossac it shouldn't have dependencies)

mbavaro created this issue in shumatech/BOSSA

open MacOS fails programming SAM S70, Windows succeeds #106

dledge opened this pull request in shumatech/BOSSA

open Short delay to ensure port is flushed in OS X (and prevent download h… #121

judicar

@bearer Will do!

droftarts

@judicar Yes, current version of Bossa 1.9.1 on Mac OS seems to be broken for Duet 3. Has been reported here https://github.com/shumatech/BOSSA/issues/106 but there doesn't seem to be much activity on the bossa github.

Please let us know if you recompile it with that fix, and it works.

Ian

mbavaro created this issue in shumatech/BOSSA