Abstract
This chapter introduces the digital I/O system for the MSP430. Digital I/O provides a way for an MCU to directly read or write logic levels to pins on the device package. The digital I/O system is highly versatile as it can be used to implement nearly any functionality a programmer wishes. We will begin by looking at the general characteristics of digital I/O on the MSP430 and how they are configured. Then, we will look at specific examples of writing to and reading from pins on the MCU that are connected to LEDs and buttons on the MSP430FR2355 LaunchPad™.
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References
Texas Instruments Inc (2019) MSP430FR4xx and MSP430FR2xx Family User’s Guide, Literature Number: SLAU445I, October 2014 – Revised March 2019. Retrieved from: https://www.ti.com/lit/ug/slau445i/slau445i.pdf
Texas Instruments Inc (2019) MSP430FR235x, MSP430FR215x Mixed-Signal Microcontrollers [device-specific data sheet], Literature Number: SLASEC4D, May 2018 – Revised December 2019. Retrieved from: https://www.ti.com/lit/ds/symlink/msp430fr2355.pdf
Texas Instruments Inc (2019) MSP430FR235x LaunchPadTM Development Kit User’s Guide, Literature Number: SLAU680, May 2018. Retrieved from: https://www.ti.com/lit/ug/slau680/slau680.pdf
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LaMeres, B.J. (2023). Digital I/O. In: Embedded Systems Design using the MSP430FR2355 LaunchPad™. Springer, Cham. https://doi.org/10.1007/978-3-031-20888-1_9
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DOI: https://doi.org/10.1007/978-3-031-20888-1_9
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