Read Vrefint in STM32F105VCT7

[SPeri.1]

I want to get an actual voltage reading at VDDA and I have configured the Vrefint adc channel. I saw in another questionnaire mentioning VDDA = 3.3*(VREFINT_CAL/VREFINT_DATA). But it seems like no macro exists as VREFINT_CAL. How can I read the VDDA value?

[STTwo-32]

Hello @SPeri.1 

I suggest you to take a look at those two posts:

• Post 1
• Post 2

Best Regards.

STTwo-32