Custom calypso board

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Mathias K. kesmtp at
Wed Jul 11 08:41:56 UTC 2012

On 11.07.2012 10:22, Alexander Huemer wrote:
> On Wed, Jul 11, 2012 at 12:35:17AM +0200, Harald Welte wrote:
>> On Wed, Jul 11, 2012 at 12:11:59AM +0200, Peter Stuge wrote:
>>> How about USB to the backplane if 12Mbps is enough throughput?
>> [...]
>> Something like multi-master SPI would at leaset from a hardware point of
>> view support that.
> multi-master smells very much like CAN. Just saying.

CAN has a maximum theoretical data-rate of 1MBit/s. For the calypso cpu we need a external CAN 
interface and the CAN transceiver. If we really want to use CAN for backplane communication i would 
use, as example, a LPC11C24FBD48 with a integrated CAN transceiver as "backplane" co-processor.

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