MP8869S GUI - Cannot Change Voltage

I need help with changing the MP8869S reference voltage. I was able to established connection with the board, and also able to change frequency and current limit. however, I couldn’t change the reference voltage from the GUI. Please help to look into this, thanks.


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The reference voltage bit is locked by default for safety reasons. To unlock it, we first need to write ‘1’ to the Go_Bit on reg 01h[D6]. You will then be allowed to change the reference voltage. Please note that Go_Bit will clear every time a new reference voltage is written. This bit will need to be set again before changing the reference voltage.