Hello, thank you for your response. I have checked the formula provided in the thread you mentioned. ---------------------------------------------------------------------------------- Assume the ADC capture data is 800. (800/2048) * (755mV/2) ~= 147mV ---------------------------------------------------------------------------------- I have two additional questions: According to the formula above, it seems that SDHS calculates the ADC using a differential signal, meaning the RX signal and the current RX bias signal. Is this correct? The reference voltage for ADC calculation is determined to be 378mV. Is there any official documentation that explicitly specifies this value? (I couldn't find it in the provided MCU datasheet, so I would like to confirm.)
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