Trigger DMA transfer periodically using a timer for S32k322

user_244572 — Tue, 21 Jan 2025 12:04:24 GMT

Hello,

I am trying to configure the DMA in order to update the duty cycle for the EMIOS registers (A and B) on a periodic basis to generate an SPWM signal.

DMA should read the dutycycle from a location in Memory and tranfer the value to the EMIOS peripheral.

Can you tell me how to connect between the PIT timer and the DMA_MUX ? I am using S32 design studio and included Pit and Dma_Ip drivers.

1) I have checked the user manuel, but I am wondering if you can provide me with an example using S32_designStudio (RTD level).

Thanks in advance.

Re: Trigger DMA transfer periodically using a timer for S32k322

_Leo_ — Tue, 04 Feb 2025 22:31:45 GMT

Hi,

Thank you so much for your interest in our products and for using our community.

There is no available any example for PIT DMA triggering. Sorry for the inconvenient.

Just those in RTD examples.