S32K1 FLEXIO trigger source

SONGTAOSI — Fri, 11 Aug 2023 08:17:43 GMT

Hi,

I use FlexIO to emulate UART, and use the Demo flexio_uart_s32k148 of S32SDK_S32K1XX_RTM_4.0.1 .The project configure TX to timer0, trigger source is internal trigger. RX to timer1, trigger source is external trigger, baud rate is 4800.

Now,I want to configure external trigger source to timer0(TIMsrc=0), and external trigger signal is generated through LPIT and TRGMUX,the frequency is 10KHz. However , I found that even though turn off the LPIT (no trigger signal is generated)the uart can nomal operation. in other words, the external trigger have no effect.

Can you give me some suggestions about how to configure external trigger source to timer0?

Looking forward to your reply.

Re: S32K1 FLEXIO trigger source

danielmartynek — Mon, 14 Aug 2023 14:04:54 GMT

Hi @SONGTAOSI,

Can you share the FlexIO configuration?

There is no TIMsrc register.

Thanks,

BR, Daniel

S32KのトピックS32K1 FLEXIO trigger source

S32K1 FLEXIO trigger source

Re: S32K1 FLEXIO trigger source