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XuefengJi · 2018-08-02

I'm using STM32F030F4, when use 48MHz HSI, everything seems ok, and the internal voltage reference is read as 1.24v. But when reduce the HCLK from 48MHz to 1MHz, the ADC seems work abnormal, the internal voltage is read as 1.41V. I tried different HC...

XuefengJi · 2018-08-05

Thanks Danish, change the ADC clock source can solve the problem! But some different situation from document you use. I didn't explicit set the ADC clock source, but seems the default setting is 14MHz clock. When I explicit set clock source to 14MHz...

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When HCLK is reduced from 48MHz to 1Mhz, the internal reference voltage is read much larger which is wrong

Re: When HCLK is reduced from 48MHz to 1Mhz, the internal reference voltage is read much larger which is wrong