topic Re: [iMX93] ADC calibration failed in i.MX Processors

[iMX93] ADC calibration failed

charleshuang — Wed, 07 Aug 2024 07:36:22 GMT

Hi NXP Team,

I just enable 'adc1' in our device tree, but the system reponse the calibration failed.

What could be the reason?

&adc1 {
vref-supply = <&reg_vref_1v8>;
status = "okay";
};

root@imx93afee320a1:/sys/bus/iio/devices# dmesg| grep adc
[ 1.565952] Bluetooth: HCI UART protocol Broadcom registered
[ 1.719162] imx93-adc 44530000.adc: ADC calibration failed!
[ 1.724775] imx93-adc: probe of 44530000.adc failed with error -11
[ 1.842125] can: broadcast manager protocol

Re: [iMX93] ADC calibration failed

Rita_Wang — Wed, 07 Aug 2024 08:33:59 GMT

Which version BSP are you using? Are you using the NXP 93EVK BOARD?

Re: [iMX93] ADC calibration failed

RainChou — Sat, 19 Oct 2024 09:18:18 GMT

Hello, NXP team. I have encountered the same issue. My IMX93 ADC also shows the errors 'imx93-adc 44530000.adc: ADC calibration failed!' and 'imx93-adc: probe of 44530000.adc failed with error -11' during initialization. I am using Advantech's IMX93ROM-2820A1 core board.

Re: [iMX93] ADC calibration failed

Arsal — Wed, 04 Mar 2026 09:23:33 GMT

Hi, were you ever able to find a solution? I’m having the same issue with the i.MX93.