[Ovmsdev] Not processing canbus frames anymore

Craig Leres leres at xse.com
Tue Apr 12 04:28:54 HKT 2022

There is definitely something funny going on with can1. I thought 
3.3.001-285 ran ok but last week I got a flatbed alert from that 
version. So I've seen this problem with a wide range of recent versions 
including an edge version I did not build myself (downloaded from 
api.openvehicles.com). What's interesting is the same builds work 
without issue on my Cadillac, it's only the Corvette that gets into trouble.

Given what I've tried so far I booted ovms-3.3.002-25 on the Corvette 
and have been getting flatbed alerts every 15 minutes since leaving home 
today (I think I have that turned off now). I can't easily capture the 
output of "can can1 status" until I get home and the module joins my 
home network (and "cut" from the messages page of the ovms iphone app is 
not implemented) but I see ~2M interrupts,  1.2M px pkts, 30 tx delays, 
13K tx overflw, 840 tx fails. There are no err flags (0x00000000) and no 
other errors. This seems to indicate can1 transmission is broken for me.


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