STM32 MCUs Embedded software

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Read Vrefint in STM32F105VCT7

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 ...

SPeri.1 by Associate II
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stm32h750 lwip mqtt hardfault issues

Dear Technical team,We are developing an IoT product using STM32H750.The application starts a task cycle to publish customer information to the cloud platform by MQTT Publish API.At the same time, we make a ping tests to target board from the PC host...