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LIN protocol on LPC236x UART (non-LIN capable)

Wojciech Noworyta

Have you any success receiving LIN protocol on non-LIN capable UARTS.
After reception of LIN-break start of frame
UART experience problems with further reception.

Thanks in advance

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    I take it that you are trying to implement a LIN slave?

    The UART should not have any problems receiving data after the break, but LIN breaks are quite long.

    Are you using the break logic in the UART or using the processor pin in GPIO mode to detect the break?

    Do you know the baudrate, or are you trying to listen to the sync field to figure out the exact baudrate? Unless you know the baudrate, it is best to switch the UART pin to GPIO mode while detecting the baudrate.

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  • 0

    I take it that you are trying to implement a LIN slave?

    The UART should not have any problems receiving data after the break, but LIN breaks are quite long.

    Are you using the break logic in the UART or using the processor pin in GPIO mode to detect the break?

    Do you know the baudrate, or are you trying to listen to the sync field to figure out the exact baudrate? Unless you know the baudrate, it is best to switch the UART pin to GPIO mode while detecting the baudrate.

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