i.MX RT1176 ADC

[SpeedyGonzalesss]

Hello,

I am using with i.MX1176 and MCUXpresso IDE. 1176 ADC is 12bit. The IRQ function and LPADC settings are as follows:

When i read convValue from IRQ function, it is greater than 12-bit. I read values up to 15-bit. Is it possible?

Thanks,

[RAVIRAJ123]

just mask your value with 0xfff in your printf where you are printing raw adc value.
uint16_t adcValue = mLpadcResultConfigStruct.convValue & 0x0FFF;

[Gavin_Jia]

Hi @SpeedyGonzalesss ,

Thanks for your interest in NXP MIMXRT series!

This is not possible, the maximum measurement range of a 12-bit ADC is 0~4095. If your reading is out of range, there should be a problem with the intermediate processing. Please note if your sampleScale is configured? It is recommended to experiment with known voltage measurement points first.

Best regards,
Gavin

[SpeedyGonzalesss]

Is there any answer for this question?