Lin interface

[123456789Raji_20]

hi ,

myself Rajeshwari present am working on S32K344 version 3.4  i taken Example code from Nxp website  :name is LIN Lin_Ip_FrameTransfer_S32K344 i want flash this code on Battery management System kit when am flashing this code am unable to get output can u help in this to solve this problem .

Thanks and Regards,

Rajeshwari 

[PetrS]

Hi,

if you meant RD-K344BMU board, then there is no LIN transceiver on it and pins used in the example are used for other purposes. You can check board schematic and try to find some free pins with LPUART functions, like uart_tx/uart_rx lines, and connect external LIN transceiver if needed.

BR, Petr

[123456789Raji_20]

actually in NXP Board S32K344 -Q172 im checking LIN output at pin number 7 and 8 (Jumper 23 )

[123456789Raji_20]

I checked BMU board PTB27,28,9,10 pin are using for LIN interface im using logic analyzer and logic analyzer software tool for display...................i downloaded already LIN stack S32K344 RTD 0.9.0 with this i cant see the output (tx data and rx data  

[123456789Raji_20]

then for that example code how i have to check tx and rx data can u please explian me 

[123456789Raji_20]

I checked BMU board PTB27,28,9,10 pin are using for LIN interface im using logic analyzer and logic analyzer software tool for display...................i downloaded already LIN stack S32K344 RTD 0.9.0 with this i cant see the output (tx data and rx data

[PetrS]

Hi,

can you share (or point to) board schematic you have? At what board's location are you connecting with analyzer.

BR, Petr

[123456789Raji_20]

This schematic diagram im using present no NXP-S32K344-Q172 board im seeing output at j23 pin number 8 and 7 

[PetrS]

Hi,

LIN Lin_Ip_FrameTransfer_S32K344 is a simple demo example which shows a communication between a Lin Master and a Lin Slave of both Lpuart Ip and Flexio Ip. As example does communication between LIN Master/Slave on the board  you should connect J23.7 to J23.8 and place either J20 or J24 jumper. Then 2 LIN frames should be visible on this LIN bus connection after example running. You can use scope or analyzer to see LIN frames. This is what you should get

BR, Petr

[123456789Raji_20]

i connected jumper connection where i have to check my output in jumper 23 (7 & and 8 pin by using logic analyzer. Now present from jumper 23 7 and 8 pin i shorted i taken one more connection i gave to logic analyzer am not getting output i shorted jumper 20 also