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TCAN4550EVM: Has anybody used the TCAN4550 with a NXP S32 uC? Would appreciate any help!

Matthew Pole
Prodigy 100 points
Part Number: TCAN4550EVM
Other Parts Discussed in Thread: TCAN4550, MSP430FR6989

Hi all,

I currently have a S32K148EVB dev kit and a TCAN4550EVM. I want to be able to use the CAN board as an additional bus on the dev kit (Chip can support 3). I have connected the two boards as follows: 

S32K148EVB TCAN4550EVM
MOSI SDI
MISO SDO
SPI Chip select nCS
SCLK SCLK
5v (10k resistor) Reset

Firstly does this seem correct?

Secondly is there any example code for the low level SPI driver with this master board? Its a small part of my project and something I have never done before so all and any help is greatly appreciated! 

Also, if this is a question more suited to the NXP side of help then I will go that way, thanks!

  • 0
    TI__Mastermind 36355 points

    Hello,

    And welcome to the E2E forums!

    TCAN4550 uses a standard SPI interface and will be compatible with any primary device that follows the same standard. There should be no issue using this MCU. 

    Regarding the connections, everything looks to be correct except for the reset pin. This input is active high, meaning a high-pulse will reset the device. For normal operation, this pin should be held at GND potential. The pin has an internal pull-down so if it is left floating, the device will operate normally. 

    We provide demo software for TCAN4550 on its store page here. This was written for TI's MSP430FR6989 microcontroller, but the TCAN4550 specific files are abstracted away from the MCU, so may be used in other C programs. The SPI drivers however will vary depending on the device they are running on, so this will have to be MCU specific. I would recommend checking the with the manufacturer to see if they have sample code available with corresponding SPI drivers. 

    If you are simply looking to evaluate the TCAN4550, we offer a booster pack EVM that can be easily connected to an MSP430FR6989 launcpad that will run the sample code with no modifications needed.

    Let me know if you have any questions about the TCAN4550 or any of the referenced tools.

    Regards,
    Eric Schott