Xiaofan Chen wrote:
>> This news came as a shock: without providing any explanation, Microchip
>> demoted the CANCKS bit to "Reserved: do not use".
>>
>> I'm going to call our FAE and ask him if he knows anything about this. 
>> Maybe
>> someone here has an explanation?
>
> Which PIC24H are you using? Just check one of them PIC24HJ64GP506
> and it does not have CANCKS bit defined in CiCTRL1.
> http://www.microchip.com/wwwproducts/Devices.aspx?dDocName=en024682
> The erratas do not mention this either. Maybe the family manual was wrong.

No, it was there in the old DS. This is from Rev C notes:

"Section 19.0 "Enhanced CAN
(ECANT) Module"
Changed bit 11 in the ECAN Control Register 1 (CiCTRL1) to Reserved
(see Register 19-1)."

http://ww1.microchip.com/downloads/en/DeviceDoc/70293C.pdf


> Ok here is the reference:
> http://www.microchip.com/forums/tm.aspx?m=421868
>
> "CANCKS bit functionality is not implemented on dsPIC33F/PIC24H devices.
> It is essentially a "don't care" bit and should not be used for bit 
> timing.
>
> We are in the process of changing the documentation accordingly.
>
> Sorry about the confusion. "

Thanks, Xiaofan! I guess next time I should have enough sense to Google it 
myself. :)

Fcan = Fcy makes sense in this context. I'm still curious to see what our 
FAE comes back with.

Best regards,

Vitaliy



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