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Original question:

MSP430FR5962: MCU microcontroller enquiry

MSP430FR5962: MSP430FR5962

Bhavish Salian
Prodigy 30 points
Part Number: MSP430FR5962

Tool/software:

Hello,

I am using an MSP430FR5962 microcontroller in my project, and it is responsible for monitoring all the board voltages. To achieve this, I’ve connected the voltage rails to the MCU’s ADC pins. Additionally, the MSP430 will control the power-up sequence of the board. My plan is to have the MCU monitor each voltage rail using its ADC inputs. Once a voltage is detected and confirmed to be stable, the MCU will then activate the enable (EN) pin for the next regulator in the sequence. Can the ADC inputs be reliably used in this way to trigger GPIOs for controlling the power sequence?

Regards,
Bhavish 

  • 0
    TI__Mastermind 25690 points

    Hi Bhavish,

    This is a fairly typical for MCUs. You would be able to do this on the device, take the voltage readings and trigger a GPIO based on the information. Depending on how fast you need the enables and how stable the input signal is will change your ADC sampling procedure.

    For the GPIO enables, those are fairly simple, based on the ADC result from the corresponding sample you can set the GPIO state.

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