[Ovmsdev] Twizy / 500 kbps CAN lockups

[mikeljo at me.com]

Hi Michael,

nice to see you here.

The Volt/Ampera has 500 kbps too.

i only change this:
// BRGCON1 = 0; // SET BAUDRATE to 1 Mbps
  BRGCON1 = 0x01; // SET BAUDRATE to 500 Kbps
  BRGCON2 = 0xD2;
  BRGCON3 = 0x02;

And it works. I think i must recalculate, but it works. ;-)
Mark check the Logs from my car and it looks good.


Bye
Michael

PS: Bin aus Kaiserslautern. Warst du am Samstag in Wuppertal?



Am 02.11.2012 um 20:54 schrieb Michael Balzer <dexter at expeedo.de>:

> During my tests I had two times some sort of a CAN lockup, i.e. everything worked except the CAN reception -- was fixed by switching the car off + on.
> 
> I'm not sure yet what caused that, it (of course) did not happen again since I included a first debug output of the RXERRCNT...
> 
> I saw the 1 mbps setup does not follow the intrepid timing calculator standard parameters but increases prop delay from 1 to 3 and decreases phase 1 from 5 to 3.
> 
> A similar change to the 500 kbps parameters though did not work with the Twizy.
> 
> Do you have any hints on debugging this?
> 
> My current setup for 500 kbps is:
> 
>    // 500 kbps -- tool recommendation + multisampling:
>    BRGCON1 = 0x00;
>    BRGCON2 = 0xFA;
>    BRGCON3 = 0x07;
> 
> Thanks,
> Michael
> 
> -- 
> Michael Balzer * Paradestr. 8 * D-42107 Wuppertal
> Fon 0202 / 272 2201 * Handy 0176 / 206 989 26
> 
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