I.MXRT1011 SPDIF Receiver just up to 88.2 kHz

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I.MXRT1011 SPDIF Receiver just up to 88.2 kHz

1,254件の閲覧回数
emagnioj
Contributor II

Hello, on the eval I.MXRT1011 i enabled the S/PDIF receiver but it locks just up to 88.2 kHz 

How to lock spdif receiver at 96 kHz or 176.4 kHz

Thank you!

 

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6 返答(返信)

1,090件の閲覧回数
emagnioj
Contributor II

hello  a colleague solved the problem setting IPG_CLOCK_ROOT to 125 MHz and now spdif receiver works up to 192 kHz

thank you!

1,241件の閲覧回数
FelipeGarcia
NXP Employee
NXP Employee

Hi,

Could you please provide how are you testing this to see if I can replicate this on my side? Please note input frequency range and implications.

FelipeGarcia_0-1618591505308.png

Best regards,

Felipe

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1,231件の閲覧回数
emagnioj
Contributor II

Hello Felipe, I got an external S/PDIF TX and connected the output on pin 6 - GND of T1 (not present ) see schematic SPF-45852_c.pdf then jumped J35 and J36.

Then assigned SPDIF IN of the eval board at GPIO_10.

When i send music i see the locked bit asserted SPDIF-SRPC (Phase config register) and i can get back the music from SPDIF OUT pin 6 - gnd of T2 ( not present ).

At 96 kHz and more the SPDIF-SRPC reports no lock and i cannot get back music.

Thank you!

Emag

 

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1,201件の閲覧回数
FelipeGarcia
NXP Employee
NXP Employee

Hi Emag,

Thank you for your reply. This has already been escalated with the RT applications team, I will provide an update as soon as there is some feedback.

Best regards,

Felipe

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1,169件の閲覧回数
emagnioj
Contributor II

Thank you Felipe! Any news?

Best regards,
Emag

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1,159件の閲覧回数
FelipeGarcia
NXP Employee
NXP Employee

Hi Emag,

The appropriate team has been contacted for testing and analysis, any update I will let you know.

Regards,

Felipe

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