i.MX RT Crossover MCUsのトピックLPADC vref Read Channel IMXRT1176

LPADC vref Read Channel IMXRT1176

chandan_uv — Tue, 07 Oct 2025 11:20:50 GMT

Hello, I want to read Analog data and its working fine but now I want to read the reference ADC voltage. From reference manual I am unable to find the channel (CMDL[ADCH]) for vref. Can you please tell where can I found the info or suggest the channel. Also share if any reference code.

PS: Similar to band gap in S32K1xx

Thanks

Re: LPADC vref Read Channel IMXRT1176

EdwinHz — Tue, 07 Oct 2025 18:06:04 GMT

Hi @chandan_uv,

The RT1170 does not have a dedicated or internal way of reading the VREFH or VREFL voltages. This would have to be done externally using a different measuring device or dedicating another ADC channel to measure the external voltage (if the VREFH is connected externally).

BR,
Edwin.