S32K144 DMAMUX trigger source without TRGMUX, how to use TRGMUX_IN0 to trigger DMA transfer?

[PYGC]

I want to trigger DMA transfer by a pin, but DMAMUX trigger source without TRGMUX.

How to use TRGMUX_IN0 to trigger DMA transfer?

[Yang123]

Have you ever solve  this question? if so, could you give me an answer about this problem. Thank you very much.

[Robin_Shen]

Hi 

Sorry for the late reply.

DMA sources called slots can be found in DMA_CH_MUX of S32K1xx_DMA_Interrupt_mapping.xlsx. 
Do you want to use BAUD[TDMAE] configures the transmit data register empty flag, STAT[TDRE], to generate a DMA request? (Peripheral request)Slot_Num 3 is the Transmit DMA Request of LPUART0.

TRGMUX_IN0 belong to Trigger not Peripheral request.  Seems that you want to achieve 17.4.1 DMA channels with periodic triggering capability. 

I'm not sure what specific functionality you want to achieve. May I ask if it is the S32K LPUART hardware flow control?

Best Regards,
Robin
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