Greetings!
I have just join this group as it might be a good place to have some chat about NXP projects.
I want to make OBD2 scanner using one of the LPC chips. Now, I dont have any experience with CAN protocol, but I read about it and kind of understand how it works. What is not clear is if filtering of the messages is done by MCU or CAN controller ?
I found most of implementations is around MCP2515 CAN controller and MCP2551 transceiver.
I dont really know if theres a benefit of using LPC CAN controller over MCP2515, or just stick with any LPC and use the SPI for that? As MCP have
2 or 3 I/O buffers, is that enough for fast communication ?What I want to achieve is to read some of the sensors from the car CAN and show it on a small TFT display.
Suggestions? Should I use LPC with CAN or stick with MCP ? Implications are that i need to make new PCB for LPC with CAN, and for MCP i can just order a board and connect it to SPI.
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