TJA1021 tranceiver circuit diagram

[ykp3036]

Is there any error in following Lin tranceiver TJA1021 circuit diagram?

When i use the S32K14 uart-lin, test will success.

But when i use the MPC5744P, test will fail and occurs bit error.

When i connect LINTX and LINRX, test will success.

So i suspect there is some error in my TJA1021 circuit diagram.

Could any one help me to check? 

[ykp3036]

Sorry, i don't think this can help me solve problem

[ykp3036]

MPC5744 has the independent LIN module, S32K14 has the LIN in UART module

[guoweisun]

I attached the app note which has the typical application reference circuit of TJA1020.

Hope this could help you!
If any questions please let me know!

[ykp3036]

Sorry, i don't think this can help me solve problem

[guoweisun · Accepted solution]

我不清楚你是用的master 还是salve node，我给您的那个app note里面有电master 的电路也有slave的电路，有MCU TX/RX内部上拉，也有无内部上拉的推荐电路，您仔细看看会有所帮助。

[guoweisun]

你有电话吗？我可以打一个电话给你

[ykp3036]

15262537495

[ykp3036]

大佬，加个微信，

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