Verification mismatch occurs on same byte repeatedly during content upload.
Earlier today I was working with my OpenBCI and successfully flashed the firmware with mpide a couple of times. I recently attempted to make a modification and began trying to upload the firmware to the board. I have tried ~10 times and the upload seems to fail always on byte 0xc200 (eight out of the ten times it failed here and the other two times it failed on a byte with a smaller address, which I assume is programmed before this point). I am going to keep attempting, but it appears that the firmware cannot be written to this byte as it has not changed any time that I have attempted to flash. Is this merely a coincidence? Has anyone had similar experience and can offer some advice?
EDIT: Eventually transfer was successful.
EDIT: Eventually transfer was successful.
Comments
I have the same symptomes , few successes and now I get repetitively at the same address and with the same values :
Data: 88104 bytes
Since you (@dschoepf) do not complain any more, you probably found a solution , what was the trick ?Erase: done
Program
flash:
............................................#############################################
done
Verify flash:
............................................##################################
error at address 1D011100: file=8C856110, mem=FFFFFFFF
Batteries or something else?
Thank you,
Yannick.
Thank's a lot, I am going too try.
I already shut the Wifi and refreshed the batteries,
but did not tried "wireless receivers less than a centimeter apart".
@biomurph
Hello,
do you think that a hard serial connection
(like http://docs.openbci.com/tutorials/03-Upload_Code_to_OpenBCI_Dongle)
would do the job,
instead of "wireless receivers less than a centimeter apart"?
A last question : Should we choose a given "programmer" from the tools/programmer menu of arduino IDE?
And if it is the case, is it the same for a hard and a wireless connection?
Thank you,
Yannick.
Uploading has been working 5 to 6 time and suddenly, for no appearent reasons, it stops...
Otherwise do you think that the distance is so critical?
Dschoepf maybe wanted to write 1 meter not one centimeter.
Thank you,
Yannick.
Have you tried Dschoepf's advices?
"making sure the wireless receivers are less than a centimeter apart."
At first I thought it was a joke or just a way to speak...
But it is not !!!
and I must thank again Dschoepf.
It is not perfect but time to time it works...
What is strange is that during my first uploading , receivers were at 50cm apart and it worked 2-3 times.
With time the following uploadings became more and more painfull ... 1/2, 1/4, 1/10 success, ...
And now 0.5cm gives 1/2 succes... (wifi and phone closed)
I wonder if at a so small distance receivers can be burned by emiters.
For example , if you use low cost "talkie walkie" close to each others the reception stage is immediatly burned...
Yannick.
@strator
how far apart where the receivers?
Yannick.