[Ovmsdev] Twizy controller configuration / CANopen SDO protocol

[Mark Webb-Johnson]

Wow, nice!

It is amazing the amount of low-level stuff you guys have managed to find for the Twizy.

The CANopen SDO stuff probably deserves to be in vehicle.{h,c} - along with the pid polling stuff in 2.6.

Regards, Mark

> On 31 Dec, 2013, at 8:39 pm, Michael Balzer <dexter at expeedo.de> wrote:
> 
> Hi everyone,
> 
> sorry for dropping behind/off last months, lots of work.
> 
> I've not been able to catch up on the framework advances yet, but nevertheless wanted to announce a major Twizy update I'm currently working on.
> 
> This update enables access to the SEVCON controller configuration of the Twizy.
> 
> Low level commands allow read and write access to all SDOs. Macro commands allow to easily change common settings like maximum speed, maximum torque, power and recuperation levels and drive profile characteristics.
> 
> There is a potential benefit for other vehicles from this development: I've done a basic CANopen SDO protocol implementation for this. The implementation is specific to the Twizy only because it's limited to addressing just node #1 and currently only supports expedited SDO transfers, not segmented. The node id could easily be made variable, and segmented transfers should be not much of a problem. It still is nowhere near a complete CANopen protocol implementation, but allows SDO reading and writing. Tell me if this sounds useful for other vehicles.
> 
> As I've not yet integrated your latest work, I've pushed this into my Github repository first:
> 
> https://github.com/dexterbg/Open-Vehicle-Monitoring-System
> 
> I'll also wait for some more user feedback before going on, and I also want to implement support for the Twizy 45 before merging this in.
> 
> Just wanted to let you know in case you wonder about rising OVMS hardware sales lately ;-)
> 
> Oh, and I wish you all a happy new year!
> 
> Regards,
> Michael
> 
> -- 
> Michael Balzer * Paradestr. 8 * D-42107 Wuppertal
> Fon 0202 / 272 2201 * Handy 0176 / 206 989 26
> 
> <dexter.vcf>
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