Hay there James
Yes the U3s works fine up to the start of transmitting then reboots
Yes I can go through all the menus and set the correct info
Yes different power supply same results
Home made PSU running to 7805 5 volt regulator.
I have been into building and repairing radios for almost 55 years. I am 70 years old and got my first ham ticket in 1975.? I have built about 30 Heathkits including the complete SB-104A station.. Repaired Kenwood TS 820s, Icom 740 Many kits built by others. Lots of AA5 type radios etc. etc. So I can solder. This U3s was working well but the Atmal 328P became corrupt and factory reset did not solve the problem. That is why I am trying to flash the firmware.
Now my error reads,,,,
Reading | ################################################## | 100% 0.00s
avrdude.exe: Device signature = 0xffffff
avrdude.exe: Yikes!? Invalid device signature.
???????????? Double check connections and try again, or use -F to override
???????????? this check.
avrdude.exe done.? Thank you.
I don't understand where to use "-F" so I can't try that yet.
My wire connections are correct and the same as the arduino sketch list them. I know the 328P is corrupt because I tried a new chip from QRP labs. I have ordered a new chip but won't get it for a couple weeks. Any Ideas? Carl?? AB1ZI
