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MSP430FR2533: How can I program a Capacitive Touch MCU?

Martin Holguin
Intellectual 280 points
Part Number: MSP430FR2533

Hi,

I am starting a project and want to use mutually coupled capacitive touch sensors to avoid issues with water or humidity. I saw that your MCU solutions are the best for this, so I'll be using an MSP430FR2533IRHBR that will communicate with the main MCU. The thing is, I don't quite understand how to get the MSP430xx up and running. Do I need to program it, or is it configured through some interface? Could you please help me with this?

Regards.

  • 0
    TI__Guru 61951 points

    Hi Martin,

    At a minimum, you will need a CAPTIVATE-PGMR (programmer/debugger) to program the MSP430.  This programmer also includes a USB to serial bridge that is required to allow the MSP430 to communicate with the Captivate GUI.

    The steps to create a sensor and program the MSP430 are detailed in the 'Workshop' chapter of the Captivate Technology Guide.

    You will also find information about how to design sensors.

    Are you creating button or key type sensors?

  • 0 in reply to Dennis Lehman
    Intellectual 280 points

    Hi ,

    Thank you for your help. I will purchase the programmer then. However, is there any IC that I can use for my application that doesn't require a programmer and is of the mutual capacitance type? Note: I will be using button and wheel-type sensors.

  • 0 in reply to Martin Holguin
    TI__Guru 61951 points

    Hi Martin,

    Unfortunately, all of the MSP430 MCUs require application code to be programmed into the device to make it work.  We don't offer an "off-shelf" device that can do what you want.  You will find that using the Captivate design center to create your initial project is simple and you only need to write a little code to handle the information that is measured on the sensors.

    Can you share what is the end application for this device?

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