MPC5744P LINFLEXD lin tranceiver circuit diagram

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MPC5744P LINFLEXD lin tranceiver circuit diagram

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ykp3036
Contributor I

when i use the MCU which use the UART-LIN IP, the LIN-Analyzer can receive the LIN frame.

but when i use the MPC5744P, always occurs    bit error.

ykp3036_0-1677649161226.png

test will success when i connect LINTX-LINRX. I dont know why.

ykp3036_1-1677649312991.png

Could NXP support team check my "LIN tranceiver circuit diagram"? Thx.

ykp3036_2-1677649407720.png

 

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PetrS
NXP TechSupport
NXP TechSupport

Hi,

there must be TXD-TXD and RXD-RXD connection between MCU and transceiver. Transceiver's TXD is the input, RXD is the output.

PetrS_0-1677676317730.png

 

BR, Petr

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