Comments (1)
OskarZyg
commented on July 21, 2024
I am experiencing issues with checksum failures. If anyone else can reproduce that would be helpful.
A more detailed explanation of the symptoms from the discord (thanks cynfab_63112):
you are losing data somehow, things like this--> $GPGGA$GPRMC,,V,,,,,,,,,,N*53 <-- indicate that the last part of the GGA sentence was overwritten by the following RMC sentence. This is a recurring problem in your whole post. IMHO TinyGPS++ isn't smart enough to disgard the first partial sentence and pick up on the next. Checksum failures result. Now the big question is what can be done about it.The root cause maybe too small a serial RX buffer, or some other software related issue. Probably best to invistagate what other RP 2040 varients are doing, do they work without checksum failures or not.
from firmware.
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