LPADC vref Read Channel IMXRT1176

[chandan_uv]

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

[EdwinHz · Accepted solution]

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.