IMX8X ESAI -

[darsh_dev]

Hi,

I'm working on IMX8QXP-B0 custom board. We have connected the DMIC on ESAI interface. While run the playing or recording audio command, I'm facing the below error sometimes/random only, even seen during the Bluetooth audio testing.

[   46.787245] fsl-esai-dai 59010000.esai: failed to derive required SCKR rate
[   46.794271] fsl-esai-dai 59010000.esai: ASoC: can't set 59010000.esai hw params: -22

When I run the DMIC command then error log not seen.

arecord -D hw:2,0 -c 4 -r 48000 -f S16_LE test.wav

Its show most of the time during other audio interface command execute. Please refer the attached log.

root@imx8qxpmek:~# cat /proc/asound/cards
 0 [imxspdif       ]: imx-spdif - imx-spdif
                      imx-spdif
 1 [imxaudmix      ]: imx-audmix - imx-audmix
                      imx-audmix
 2 [imxaudiosph0645]: imx-audio-sph06 - imx-audio-sph0645
                      imx-audio-sph0645

Thanks

[igorpadykov]

Hi darshak_patel

for such performance issue may be recommended to use latest C0 silicon revision

as it has performance improvement

i.MX 8X C0 Migration Guide Migrating from i.MX 8X B0 to i.MX 8X C0

use latest BSPs and RPA tool, as it also provided memory optimizations.

https://community.nxp.com/t5/i-MX-Processors-Knowledge-Base/i-MX-8-8X-Family-DDR-Tools-Release/ta-p/...

https://www.nxp.com/design/software/embedded-software/i-mx-software/embedded-linux-for-i-mx-applicat...

Best regards
igor