MSP430FR5989: Register where DAC reference voltage can appear from ESI

Samuel Pérez

Part Number: MSP430FR5989

Hi TI team,

My costumer wanted to know if it's able to see a register where DAC reference voltage can appear in order to quantify the voltage and see how much is left for the disk to rotate or not. I'm using flow metter application, here is a pic of the needed:

In the dataseeht I've seen some DAC register but I can't affirm if with these register my customer can do it or no.

Best regards

Samuel

over 2 years ago

+1 JD Crutchfield over 2 years ago

TI__Mastermind 26420 points

Hello Samuel,

Sorry for the delay. I don't fully understand what you are asking for. What do you mean by "Quantify the voltage to see how much is left for the disk to rotate?"

The DAC will set the threshold for the comparator, which will change state when that DAC voltage is reached. The ESIDACxRx registers are explained in section 37.2.1.6 of the user's guide. R0 and R1 will correspond to the hysteresis for the ESIOUT0 output.

Thanks,

0 Samuel Pérez over 2 years ago in reply to JD Crutchfield

Prodigy 205 points

Hello Crutchfield,

I think they want to monitor the LC signal in order to "stress" the system and compare the signal with magnets and without them. I think that with "ESIDA1R0" and "ESIDAC1R1" will be enought.

Best regards

Samuel

0 JD Crutchfield over 2 years ago in reply to Samuel Pérez

TI__Mastermind 26420 points

Okay, sounds good Samuel.

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MSP430FR5989: Register where DAC reference voltage can appear from ESI