Thread: Baudrate guessing! Also, bluetooth obdsim

Originally Posted by chunkyks

OBDGPSlogger now has a baudrate guesser.

Is this just ATZ at different baudrates until you get a valid response?

Actually I'm using 0100, but in short... yes. It actually was just the first step, I'm now also doing baudrate upgrading [/a la/ pages 48-49 of the ELM datasheet]

Gary (-;

The baudrate upgrader now works too - and valgrind says that there are no possible leaks anywhere

Woooo. It's been a good day for coding.

Gary (-;

Code:

chunky@mills:~/src/tmp/obdgpslogger/build$ valgrind --leak-check=full --show-reachable=yes ../bin/obdgpslogger -b0 -B0 -t -c2 -s /dev/ttyUSB0 -l logger.txt
==18543== Memcheck, a memory error detector.
==18543== Copyright (C) 2002-2008, and GNU GPL'd, by Julian Seward et al.
==18543== Using LibVEX rev 1884, a library for dynamic binary translation.
==18543== Copyright (C) 2004-2008, and GNU GPL'd, by OpenWorks LLP.
==18543== Using valgrind-3.4.1-Debian, a dynamic binary instrumentation framework.
==18543== Copyright (C) 2000-2008, and GNU GPL'd, by Julian Seward et al.
==18543== For more details, rerun with: -v
==18543== 
Opening serial port /dev/ttyUSB0, this can take a while
Baudrate guessing: 9600, success at 9600
Baudrate upgrading: 38400 [68]:success, 57600 [45]:success, 115200 [22]:fail [no OK], 230400 [11]:success, 460800 [08]:fail [no ELM], 500000 [08]:success, 576000 [06]:fail [no ELM], 
Successfully connected to serial port. Will log obd data
Couldn't open gps port on startup.
temp=69.000000
rpm=8048.000000
vss=121.000000
maf=385.279999
Creating a new trip
temp=69.000000
rpm=8048.000000
vss=121.000000
maf=385.279999
==18543== 
==18543== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 27 from 4)
==18543== malloc/free: in use at exit: 0 bytes in 0 blocks.
==18543== malloc/free: 423 allocs, 423 frees, 297,095 bytes allocated.
==18543== For counts of detected errors, rerun with: -v
==18543== All heap blocks were freed -- no leaks are possible.
chunky@mills:~/src/tmp/obdgpslogger/build$

hey,

is there a problem with bluetooth support in obdsim v 0.16 ?

Code:

cidou@cidou-Inspiron-9300:~/Téléchargements/obdgpslogger/build$ obdsim -b
obdsim: invalid option -- 'b'
cidou@cidou-Inspiron-9300:~/Téléchargements/obdgpslogger/build$ obdsim -v
Version: 0.16

That'll happen if you don't have the bluetooth development stuff installed. It looks for bluetooth.h the header file, so you probably just need to install libbluetooth-dev [or similar for your distro].

Also remember to read the manpage for obdsim, as it tells you how to set up bluetooth to correctly advertise what it can do

Gary

Thanks, it works