LPUART1 rx problem

623619261 — Fri, 25 Oct 2019 11:32:48 GMT

Hello,

I have some questions about LPUART1 of 'S32K142'.I use it with LIN transceiver 'ATA663211'.

I use it to be master.

My transmit function is right,but receive function is stranger.

When I want to receive data form slave,I transmit head first.Then I receive data.

I use code like this 'if(LPUART1->STS & rdrf mask) else if(LPUART1->STS & tc mask)' in the interrupt.

The problem is when I want to transmit data,the rdrf is '1',so it do the receive work.I don't know how rdrf to be '1'.

I clear it at first.

So I want to know whether other status would change the rdrf.

My English is very poor, forgive me.

Re: LPUART1 rx problem

constantinrazva — Mon, 28 Oct 2019 09:16:11 GMT

Hello 623619261@qq.com‌,

On this community we handle questions regarding MATLAB/Simulink and our toolboxes. For a detailed answer for your question you should post it on https://community.nxp.com/community/s32/s32k community - there you'll get answers from SDK experts.

Hope this helps,

Razvan.

topic Re: LPUART1 rx problem in Model-Based Design Toolbox (MBDT)

LPUART1 rx problem

Re: LPUART1 rx problem