i.MX ProcessorsのトピックRe: SPI maximum clock frequency in i.MXRT1170

SPI maximum clock frequency in i.MXRT1170

neetha_jyothish — Tue, 14 Nov 2023 10:29:50 GMT

I am trying to find the maximum SCK frequency that is supported by i.MX RT 1170. The datasheet mentions that the max. frequency is fperiph/2 as shown in the figure:

I tried to find fperiph in the reference manual, but I couldn't find it. But I did come across something called LPSPI1_CLK_ROOT. Could someone please explain whether fperiph is the same as LSPI1_CLK_ROOT?

@_Leo_

Re: SPI maximum clock frequency in i.MXRT1170

DanielRuvalcaba — Tue, 14 Nov 2023 20:35:17 GMT

Hi,

fperiph is LPSPI peripheral clock. I'd recommend you to take a look to the CCM in the Reference Manual.

You can also take a look to this article.

Regards,

Daniel.

Re: SPI maximum clock frequency in i.MXRT1170

neetha_jyothish — Tue, 21 Nov 2023 17:26:46 GMT

Thanks @DanielRuvalcaba , that cleared my doubt.

Re: SPI maximum clock frequency in i.MXRT1170

neetha_jyothish — Tue, 21 Nov 2023 17:34:40 GMT