microcontroler with CAN /LIN or both??

[themaccabee]

Hi,
I'm a totally newbie in CAN or LIN protocol..
i need to implement a CAN bus of 250kBaud rate & three LIN bus with 2 having 19200 baud and one with 9600baud.

Is there any micro controller coming with integrated CAN/LIN interfaces? IF so some example names will be greatly helpful..
Thanks for any help

 

[btbass]

For a LIN slave node, look at Freescale MC9S08SL8 family.
They have an on-board SLIC module which implements LIN in hardware.

SLIC (Slave LIN Interface Controller)

SLIC — Supports LIN 2.0 and SAE J2602 protocols;
up to 120 kbps, full LIN message buffering,
automatic bit rate and frame synchronization,
checksum generation and verification,

The SLIC includes these distinctive features:
• Full LIN message buffering of identifier and 8 data bytes
• Automatic bit rate and LIN message frame synchronization:
— No prior programming of bit rate required, 1–20 kbps LIN bus speed operation
— All LIN messages will be received (no message loss due to synchronization process)
— Input clock tolerance as high as ±50%, allowing internal oscillator to remain untrimmed
— Incoming break symbols always allowed to be 10 or more bit times without message loss
— Supports automatic software trimming of internal oscillator using LIN synchronization data
• Automatic processing and verification of LIN SYNCH BREAK and SYNCH BYTE
• Automatic checksum calculation and verification with error reporting
• Maximum of two interrupts per standard LIN message frame with no errors
• Full LIN error checking and reporting
• High-speed LIN capability up to 83.33 kbps to 120.00 kbps1
• Configurable digital receive filter
• Streamlined interrupt servicing through use of a state vector register
• Switchable UART-like byte transfer mode for processing bytes one at a time without LIN message
framing constraints
• Enhanced checksum (includes ID) generation and verification

Using the slic module simplifies the software.
You just service interrupts and the hardware slic does the rest.
If you use a Microchip MCP2021 transceiver with it, the regulated 5V out from the transceiver can power the micro.

For a CAN micro, look at Microchip dsPic30, dsPic33 or their 32 bit series.