Hi all!
Today my truSDX stopped working, I've used it in the morning without problem and when I've tried to use it in the afternoon it doesn't boot anymore. Screen shows this string:
I tried to update the firmware two times: writes works fine but verification fails with "verification error; content mismatch".
Does someone have some idea to try?
Thanks in advance
try on several USB ports and short USB cables. The port and cable can play a significant role.
Have you used AVRdudess portable and used the right options as DL2MAN shows?
If this really does not work after several different tries, you can try burning a new bootloader wie ISP port inside with a Arduino as ISP or an USBAsp special programmer (cheaper than a Arduino normaly).
lu2efi wrote: ↑26 Feb 2023, 00:47
Hi all!
Today my truSDX stopped working, I've used it in the morning without problem and when I've tried to use it in the afternoon it doesn't boot anymore. Screen shows this string:
I tried to update the firmware two times: writes works fine but verification fails with "verification error; content mismatch".
Does someone have some idea to try?
Thanks in advance
I´ve never seen something like this before, so I´ve asked Guido.
Here is his response:
That serial number with increasing numbers indicates that there is an issue with the internal memory banks of the atmega chip. He can try to install new firmware with that serial number, but I do not think there is much you can do other than replacing the chip.
I’ve just got the same thing: same number I’ve noticed that the 12v was intermittently working before this and gave now seen that the “tab” where the positive goes (and the second +) have both lifted off hence there’s no connectivity
Not sure if it’s this it where to with this board - just frustrating!
DL2MAN wrote: ↑27 Feb 2023, 15:16
I´ve never seen something like this before, so I´ve asked Guido.
Here is his response:
That serial number with increasing numbers indicates that there is an issue with the internal memory banks of the atmega chip. He can try to install new firmware with that serial number, but I do not think there is much you can do other than replacing the chip.
Manuel, number on screen doesn't increase, just blinks exactly 5 seconds.
I agree with Guido suspecting from the atmega mcu: first times I've tried to update the firmware it was rewritten without problem, but the final verification failed (my first post symptom). Now, I can't access the chip at all:
I had a sudden stop working when I was going through the testing of the power etc as in DL2MAN video so as I read here I reprogrammed the rig using the procedure out line in DL2MAN text and all working again now ... I have such faith in the little radio and so much fun that I decided to buy a ready made one from his approved suppliers this time and it should arrive May 2nd !!!
Now I can press on with the testing my existing one !!!!...
Keep up the good work Manuel
UPDATE
This failure to operate suddenly happened after I had put the LATEST Beta version of the software in the unit.
Hello everyone
I assembled a truSDX and the firmware was already installed in the kit,
but then I have the same problem as lu2efi
my truSDX worked for about half an hour and then the display remained dark. The firmware change worked, but there is no reset and then only the serial number is displayed, the last three digits of which do not match the information in the downloaded Hex File.
How can I bring him back to life
Thanks for the reply Manuel
The first time I tried it, I probably turned off the display and couldn't get it back on. (Read the manual first!) After that I updated the firmware and used the serial number from the supplier. But this number is WRONG! Since the device only displayed one number, I used this to create the firmware and it worked.