Re: BlueSaab starts on bench, not in car
Posted by
Seth on
Jun 24, 2020; 6:22pm
URL: http://bluesaab-forum.90.s1.nabble.com/BlueSaab-starts-on-bench-not-in-car-tp1657p1658.html
Sounds like a possible canbus communication issue...? I would look at that area and make sure there aren’t any shorts or missing solder joints.
Could also be an issue with the mcp2515 resonator, if it’s not giving the mcp a good clock signal.
Seth
On Wed, Jun 24, 2020 at 14:17 homerisback [via BlueSaab Forum] <
[hidden email]> wrote:
Hi guys,
I'm experiencing a confusing behaviour from a v5.x module. It comes from a bunch of 3 where the two others work like a charm.
As written in title, the module starts properly on bench while either powered by 3.3V from ISP, 5V from USB or 12V via CD changer connector (like it would in car) : it does the boot sequence and puts RN52 into discovery mode, when paired it starts playing music. Everything normal.
When I plug it into the car (tested in both my 9.3s where other modules ever worked), power lights up, little blinkings at RX & TX leds, then ... nothing. I mesured voltages at different points, everything is ok and car battery is healthy enough.
It looks like firmware won't start (forgot to say that I tried v4.1, v5.1b and my v5.1c with character mapping).
This BlueSaab remains invisible to car and no RN52 start either.
Any ideas that pop up ?
Thanks guys for your help
01' 9.3 SE Conv - AS3 - Nexus 5 Android M 6.0.1 - BlueSaab v4.2 + Amp - Latest CDC repo.
NC, USA