LPC MicrocontrollersのトピックRe: LPC55 DMA and SPI memory maps

LPC55 DMA and SPI memory maps

kbetts — Wed, 12 Apr 2023 10:22:12 GMT

I am writing an SPI DMA driver for the LPC55 as the NXP driver library doesn't quite do what I want. Is there a specification document available anywhere for the memory mapping of the SPI and DMA peripherals? I've pulled the structures out of the NXP drivers but I would like some more certainty that everything is as it should be, and to know whether the ~~__I (input)~~ __O (output) fields can be read from.

Re: LPC55 DMA and SPI memory maps

Alice_Yang — Thu, 13 Apr 2023 06:58:08 GMT

Hello @kbetts

It seems this is the same question with your another ticket in salesforce, we have reply you on that thread.

Alice

Re: LPC55 DMA and SPI memory maps

kbetts — Fri, 14 Apr 2023 10:06:35 GMT

I have now found this information in the user manual. I was looking in the separate DMA document before

Re: LPC55 DMA and SPI memory maps

ujwal_kumar_N_L — Fri, 13 Oct 2023 04:37:05 GMT

can you please post the documents you used ?any other updates regarding your driver?

Re: LPC55 DMA and SPI memory maps

kbetts — Fri, 13 Oct 2023 07:03:43 GMT

The User Manual can be found here:

https://www.nxp.com/webapp/Download?colCode=UM11126

The driver was developed for internal use by my company and is not available for distribution