topic Re: Lin interface in S32K

Lin interface

123456789Raji_20 — Thu, 20 Jul 2023 07:04:52 GMT

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

Re: Lin interface

PetrS — Thu, 20 Jul 2023 10:41:36 GMT

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

Re: Lin interface

123456789Raji_20 — Thu, 20 Jul 2023 11:24:07 GMT

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

Re: Lin interface

123456789Raji_20 — Thu, 20 Jul 2023 11:29:45 GMT

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

Re: Lin interface

123456789Raji_20 — Thu, 20 Jul 2023 11:45:18 GMT

Re: Lin interface

123456789Raji_20 — Thu, 20 Jul 2023 12:11:14 GMT

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

Re: Lin interface

PetrS — Fri, 21 Jul 2023 06:43:21 GMT

Hi,

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

BR, Petr

Re: Lin interface

123456789Raji_20 — Fri, 21 Jul 2023 08:17:59 GMT

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

Re: Lin interface

PetrS — Fri, 21 Jul 2023 09:00:01 GMT

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

Re: Lin interface

123456789Raji_20 — Mon, 31 Jul 2023 04:23:06 GMT

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