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Altera_Forum's avatar
Altera_Forum
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19 years ago

CAN bus module

IIRC Nios II does not provide a CAN bus module by default. What are the choices if you want to add CAN support to your Nios II design? Is it possible to integrate the OpenCores CAN controller to N...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
19 years ago

I believe it's not so expensive, but they do big volumes. When I asked for a quote, it was around 10.000euro for 100.000 can controllers (around 0.10euro/piece).

So if you have enough volume, and space available in the fpga it is cheaper. If the volume is low (this is the case for most fpga designs I think) or you have to go to the next bigger device because of the can bus, I think the SJA1000 is cheaper (but o so slow tointerface).