Hi,
I am planning to use imx7ULP in one of the medical applications device. And require 3 Mic to interface with iMX7ULP. And it is battery operated device so we have to select iMX7ULP. I have some of the query below kindly provide suitable answers.
Mrudang
Hi Igor,
Can you provide me the steps to go below 48MHz for M4 core?
Mrudang
Hi Mrudang
please refer to sect.26.1.4 Instantiation information for SCG0 (M4)
i.MX 7ULP Applications Processor Reference Manual
Best regards
igor
Hi Igor,
Thanks for your support and quick response.
Mrudang
Hi Igor,
Just confirm that by using the below application note. we can convert any FLEXIO of M4 and A7 to SAI, I2C etc...
https://www.nxp.com/docs/en/application-note/AN4955.pdf
https://www.nxp.com/docs/en/application-note/AN12174.pdf
Please confirm
Mrudang
Hi Mrudang
yes these app notes can be used as starting point.
Best regards
igor
Hi Mrudang
>Are Flex IO can be configured for I2S or not?
yes, one can refer to below app notes:
https://www.nxp.com/docs/en/application-note/AN4955.pdf
https://www.nxp.com/docs/en/application-note/AN12174.pdf
>What is the minimum m4 operating frequency?
no limit for minimum frequency.
Best regards
igor
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Hi Igor,
I will take a look.
I have seen the min freq is 48MHz in Very Low Power Run (VLPR) for M4. Can we go below that?
Mrudang
Hi Mrudang
>I have seen the min freq is 48MHz in Very Low Power Run (VLPR) for M4. Can we go below that?
yes
Best regards
igor