LPC Microcontrollers中的主题 Re: DMA operation on SPIFI controller

DMA operation on SPIFI controller

richardchenigt — Tue, 06 Nov 2018 02:11:53 GMT

Hi all, I have one question on using DMA on SPIFI controller and wonder if anyone can shed some light on it. When using DMA on SPIFI controller, do I still need to specify bit 5:1 of the configuration for SPIFI if I enable the memory mode?

Thanks

Richard

Re: DMA operation on SPIFI controller

jeremyzhou — Wed, 07 Nov 2018 01:50:18 GMT

Hi Richard CHEN,

Thank you for your interest in NXP Semiconductor products and for the opportunity to serve you.
I'd like to know which chip you use prior to answering the question.
Have a great day,
TIC

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Re: DMA operation on SPIFI controller

richardchenigt — Wed, 07 Nov 2018 16:48:43 GMT

Hi Jeremy, the chip I am using is LPC1820. Thanks.

Richard

Re: DMA operation on SPIFI controller

jeremyzhou — Thu, 08 Nov 2018 04:35:19 GMT

Hi Richard CHEN,
Thanks for your reply.
Unfortunately, now there's no similar demo as you want in the LPCOpen library, however, you can combine the SPIFI and DMA demos to implement this application.
Note: LPC1820 doesn't have the internal flash if it boots from the SPIFI flash, it's prohibited to communicate with itself, hope this is clear.
Have a great day,
TIC