[Ovmsdev] Duktape heap memory management
leres at xse.com
Mon Sep 6 10:51:41 HKT 2021
Although it checked out ok when I first reinstalled it, the ant2 u.fl
center conductor was not making the trip to the sma connector. I put
some flux on it and reheated it and was able to get some M ohms at first
but then nothing.
I printed the sim7600 hardware design manual page that shows the layout
of the pins. Interestingly, the top pins seem to be reversed (?!?!), for
example gnss_ant buzzes out as the third pin from the top right instead
of third pin from the top left as shown in the pdf. But aux_ant buzzes ok.
But I see my problem: R6 and R7 are not populated. Looking around ant3,
I see R8 and R9 are 0 ohm jumpers, so I think I need to move them. (C8
and C9 are also empty but so are C10 or C11 so guessing nothing to do
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