[Ovmsdev] GEVCU 5 hardware

[William Petefish]

Not to mention the recovery mode items. (to recover from a bad flash.)

-W


On Thu, May 15, 2014 at 7:19 AM, Mark Webb-Johnson <mark at webb-johnson.net>wrote:

> Nigel,
>
> For the OVMS firmware updates, three suggestions if you end up doing this
> a lot:
>
>
>    1. The PICKIT programmers have a programmer-to-go functionality. You
>    can download the firmware to the programmer, plug it in to the module, hit
>    a button, and the firmware is downloaded. This is what we do when we have
>    100 modules to program.
>
>    2. Use a 6 pin extension cable, coming out of the OVMS module. Then,
>    just plug in pickit and laptop in the car.
>
>    3. Use two modules, and swap them in the car (programming the
>    disconnected one on your bench).
>
>
> For OVMS v3 (whatever, whenever), it would be sensible to use either USB
> to update firmware, or a file on microSD card. Both these approaches do the
> programming from a boot loader in low memory.
>
> Updating over wifi/cellular is tricky for embedded hardware like OVMS /
> GEVCU. You need all the comms stuff fixed in low memory, and only update
> the user space code higher up. Makes it tricky to update the comms stuff
> (boot loader).
>
> Regards, Mark.
>
> On 15 May, 2014, at 7:48 pm, Nigel Jones <nigel at cherrybyte.me.uk> wrote:
>
> I also came across @fleetprobe (
> Davy De Waele <https://twitter.com/ddewaele>) who have their proprietary
> equilvalent based on some atmel microcontroller. No idea of the overall
> capabilities
>
>
> As someone more used to larger memory systems (!) & new to OVMS. I was
> also interested in the plethora of CAN bus adapters compatable with the
> rasberry pi via the SPI interface - or possibly USB.. This potentially
> opens up to a much broader audience for development (linux kernel support)
> BUT very significant power usage 500mA-1000mA @ 5V. that's more awkward
> especially when not driving. Well basically it can't happen = flat 12V
>
> I do like the idea of
>  * connectivity locally within car (wifi/bluetooth) without requiring
> cellular data connection - idea for an additional in-car dash display for
> "production" use or even for debugging messages
>  * anything to make sw updating easier. with the ovms I need to disconnect
> 3+ cables in car, bring inside, open up box, attach pic programmer,
> program, screw back up, go back out to car, plug back in. I'm more used to
> OTA updates... easy for a pi, but presumably trick for microcontroller.
> Anything that speeds up this iteration would be helpful
>
>
>
>
>
> On 15 May 2014 11:55, Kevin Sharpe <kevin.sharpe at zerocarbonworld.org>wrote:
>
>> Hi Rob,
>>
>> I’ll send a complete GEVCU 5 hardware list when I get a moment. It’s
>> based on a Arduino Due architecture with a 84Mhz 32-bit microcontroller :-)
>>
>> Here’s a link to the enclosure which is IP67/69 (submersible!)
>>
>> http://www.cinch.com/products/modular-integrated-connector-enclosure
>>
>> <MODIce_enclosure.png>
>>
>>
>> Kevin Sharpe | Founder & Patron | Zero Carbon World is a UK Registered
>> Charity #1141347
>>
>>
>> From: Robert Sharpe <robert.sharpe at evergreen-consulting.co.uk>
>> Reply-To: OVMS Developers <ovmsdev at lists.teslaclub.hk>
>> Date: Thursday, 15 May 2014 11:31
>> To: OVMS Developers <ovmsdev at lists.teslaclub.hk>
>> Subject: Re: [Ovmsdev] GEVCU 5 hardware
>>
>> Hi Kevin,
>>
>> It seems sensible to assess the opportunity.
>>
>> If someone more informed than me can list the relative features,
>> potential and cost of the two units then that would put us in a better
>> position to comment.
>>
>> Regards,
>> Rob
>>
>> ---- On Thu, 15 May 2014 11:00:50 +0100 *Kevin Sharpe
>> <kevin.sharpe at zerocarbonworld.org <kevin.sharpe at zerocarbonworld.org>>*wrote ----
>>
>> Version 5 of the Generalised Electric Vehicle Control Unit (GEVCU) will
>> include BT, WiFi, and isolated I/O in a low cost and rugged automotive
>> enclosure. Many of the things on my OVMS wish list!
>>
>> GEVCU development is progressing well and I’ve suggested they add GPS as
>> an option in the final version;
>>
>> https://groups.google.com/forum/#!forum/gevcu-development
>>
>> Would their be any interest in porting OVMS to the GEVCU hardware? Or
>> even in merging the projects possibly?
>>
>> I ask this because the more resources we can bring to the project the
>> more likely it is to flourish.
>>
>>
>> Kevin Sharpe | Founder & Patron | Zero Carbon World is a UK Registered
>> Charity #1141347
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>>
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>>
>
>
> --
> ----
> Nigel Jones
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