Will welcome any suggestions...
History:
Using UBITX_CEC_V1.080_16P.hex. Original Raduino died during transmitter testing.??? Display: Top row all filled characters, Bottom row no characters.? This is what is displayed while waiting for boot to complete with working unit...? Tried to reload firmware...
UBITX Manager: Connects OK (38,400 baud), but READ UBITX returns error - [6:31] ERROR RECEIVE LENGTH = 0/1027
Reset does not return error.?? After "reset ubitx", reconnect and tried to upload original btx file - reported success...
Then...
Using XLOADER, tried uploading UBITX_CEC_V1.080_16P.hex again (57,600 baud, at 38,400 - can't open port)? ---? Tries to upload, but stuck at "uploading...", never completes.
So...? Ordered new Raduino kit from W0EB.? Different problem: Display lights, no characters either row.
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Memory manager connects, Read ubitx seems to work.? Got data and the info: [6:57 PM] Check sum compare 57:57
[6:57 PM] READ SAMPLE : 02,D2,DD,FF,FF,00,00,00,00,B2,0E,B7,00,00,00,00,00,10,93,6B,00,C8,09,6F,00,00,00,00,00,0E,00,00,
Memory Manager
Reset seems to work.
Loading btx from file reports "success".
Using Xloader, loaded UBITX_CEC_V1.080_16P.hex,? apparently successful.
Lit, but still blank display.
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THEN... Put the new arduino nano (from W0EB) in the original Raduino board.?? Seems to work!
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Apparently I have two issues.? A bad Nano in original, and something wrong with my new kit.
I have carefully examined all solder joints using 10x eye loop and 20x stereo microscope.? No bridging, joints look OK.
Two questions:
1) Any suggestions about why the original Nano died?? Don't want a repeat!
2) What could be causing the lit but blank display on the new kit?
Thanks for any suggestions.
Woody,? KZ4AK
