Model-Based Design Toolbox (MBDT)のトピックHow to build a SPI communication with DMA and FIFO

How to build a SPI communication with DMA and FIFO

Gshao — Fri, 12 Aug 2022 12:51:34 GMT

hello, dear gentlemen, I use MPC5744P chip and want to build a SPI communication. SPI model can use FIFO and DMA when transfer and receiver data . I read the chip document and I try to configure the SPI_MCR register by write register block, but it can't works. so who can tell me how to configure the MCR register ??

Then I want to configure the DMA, but the DMA needs to source adress and destinations adress, it doesn't output a data. but I find the SPI transfer block need a data input. they are in conflict. so how to use DMA cooperated with SPI ??

thank you very much.

@mariuslucianand

Re: How to build a SPI communication with DMA and FIFO

KalaimaniArumugamdev — Fri, 12 Aug 2022 13:52:11 GMT

hi @Gshao

Refer "DEVKIT-MPC5744P Development Board – Quick Start Package" in this link .

"https://www.nxp.com/webapp/Download?colCode=DEVKIT-MPC5744P-QSP"

Re: How to build a SPI communication with DMA and FIFO

Gshao — Mon, 15 Aug 2022 07:11:35 GMT

Hello, thank you very much. it benefits a lot. besides do you have some MBD reference document or model except the MATLAB help document and reference model, if impossible, I want to build a SPI model based on MBD.