[Ovmsdev] v2.5.2

Thu Aug 29 13:57:06 HKT 2013

Jack, Tom,

One good thing - when/if you switch from v1 to v2 you don't have to re-do the antenna! The connectors are the same. You will just need the module and the Tesla Roadster cable.

The situation with v1 + ACC now is very very tight. It is ok, but at some point it is going to be feature-limited.

Regards, Mark.

On 29 Aug, 2013, at 1:50 PM, Jack West <jackduncanwest at gmail.com> wrote:

> I'm with Tom.  Time to upgrade!  I look forward to hacking the V1 hardware that will be freed up.
> 
> Jack
> 
> On Aug 28, 2013, at 9:27 PM, Tom Saxton <tom at idleloop.com> wrote:
> 
>> I want all the features, ACC and logging, and room to hack in my own
>> stuff. I'm also looking forward to being able to do DIAG mode without
>> totally disassembling the device. Plus, v2 looks cooler. :-)
>> 
>>   Tom
>> 
>> On 8/28/13 6:10 PM, "Mark Webb-Johnson" <mark at webb-johnson.net> wrote:
>> 
>>> Tom,
>>> I sent out a subsequent eMail last night - I managed to shoe-horn ACC
>>> into v1 firmware (at the expense of DIAG mode):
>>> 
>>> 
>>> The good news is that by doing some juggling around, I've managed to
>>> shoe-horn ACC into the V1_Production code for v1 hardware modules.
>>> We've got 3,614bytes of flash and 504bytes of RAM free to play with! The
>>> sad news is that this is at the expense of DIAG mode.
>>> Anyway, if developers really need that, they can build a custom firmware
>>> for it anyway, so not too bad. I may be able to bring it
>>> back for v1 hardware at a later stage, if we can reduce code-size
>>> elsewhere.
>>> 
>>> 
>>> 
>>> 
>>> That said, the v2 hardware is so much better than v1 :-)
>>> 
>>> Regards, Mark.
>>> 
>>> On 29 Aug, 2013, at 5:17 AM, Tom Saxton <tom at idleloop.com> wrote:
>>> 
>>> 
>>> Well, I guess that means it's time to order a V2 OVMSŠ
>>> 
>>> I'm looking forward to all the new features!
>>> 
>>>   Tom
>>> 
>>> On 8/27/13 7:05 AM, "Mark Webb-Johnson" <mark at webb-johnson.net> wrote:
>>> 
>>> 
>>> I've just pushed to github the code for v2.5.2. This includes a workable
>>> ACC module, as well as a bunch of bug fixes. It also includes a
>>> re-working of the cooldown feature in the Tesla Roadster, based on many a
>>> hot evening spent in my car with a CAN USB adaptor and laptop.
>>> 
>>> For the Tesla Roadster, I managed to find two new id#100 messages related
>>> to HVAC - 0x87 and 0x9A. This is now used by the cooldown feature to
>>> track HVAC usage and try to make it work better.
>>> 
>>>   HVAC
>>>       HVAC message 0x87 and 0x9A are enabled with:
>>>           102 06 D0 07 00 00 80 00 08
>>>       and disabled with:
>>>           102 06 10 27 00 10 00 00 00
>>> 
>>> 
>>>   HVAC#1
>>>       B1=0x87
>>>       B2=Toutside (outside temperature, celcius)
>>>       B3=Tmaxbrick (ESS temperature, celcius)
>>>       B4=Tcoolant (coolant temperature, celcius)
>>>       B5=Requested cooling %
>>>       B6=Received cooling %
>>>       B7= LSB \ Compressor RPM
>>>       B8= MSB /
>>> 
>>>   HVAC#2
>>>       B1=0x9A
>>>             B2=?
>>>             B3=?
>>>             B4=?
>>>             B5=?
>>>             B6=? [ seems to be refrigerent pressure (scaled with ~/4)
>>> but not certain ]
>>>             B7=TcabinOutlet (celcius)
>>>             B8=? [ seems to be outside temperature (celcius) ]
>>> 
>>> The build configs are restructured, as previously announced.
>>> 
>>> Currently, I haven't been able to fit either LOGGING or ACC in the V1
>>> module firmware - it is just too big. I'll keep working on this, as it
>>> would be good to get at least ACC in that firmware.
>>> 
>>> One caveat: this is largely untested and probably very buggy - which is
>>> why I haven't done binary builds yet. I'll test and debug over the next
>>> couple of days and then release binaries when I've got something working
>>> well.
>>> 
>>> Regards, Mark.
>>> 
>>> 
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>>> 
>>> 
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>> 
>> 
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