NI-CAN -- ncWriteNet.vi -- r0 BIT

[DonnieD]

Hello,

I would like to know what the value of the r0 bit (in the control field) is when using ncWriteNet.

The acceptance filter of the CAN controller i use (also) needs to match the r0 value (RBnTAG)
to generate a HIT.

Thank you

[biker2000]

Hi Donnie,

The r0 field is ‘reserved’. It’s a bit that is not used (thus can’t be modified with ncWrite) and should always be dominant. From the CAN specification from BOSCH:
The reserved bits have to be sent ‘dominant’, but receivers accept ’dominant’ and ‘recessive’ bits in all combinations.

-B2k