Hi Bobby,

after I tested the T89C51CC01 / CC02 devices, I would nothing other use than CAN.

Its so easy, no other bus can do it in a similiar way.

Forget arbitration, collision, CRC, retry, protocols and other devillish stuff. All these was completely done inside the CAN hardware of the T89C51CC01.

Simple set the baud rate, enable the CAN and assign a different address to every node, thats all.
Then fully unrestricted communication from every node to every other was possible.

Put some data into the transmit buffer and you get an interrupt, if it was received succesfully from the others.

Or you get a receive interrupt and then look into the receive buffer to get the received data.

Up to 15 buffers can be assigned for transmit or receive of up to 8 byte messages.
The address can be up to 29 bits long, every bit can be masked out, e.g. to send a message to several nodes simultaneously.


Also Philips, Maxim, Infineon have 8051-derivates with internal CAN.


Peter