Introduction to Interrupts
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This chapter introduces the concept of an interrupt (IRQ) as a way to efficiently deal with asynchronous external events that the CPU must handle [1–3]. The details of the MSP430 interrupt system are then presented and an example of using the port interrupts on the LaunchPad™ board is examined.
- 1.Texas Instruments Inc. (2019a) 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
- 2.Texas Instruments Inc. (2019b) 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
- 3.Texas Instruments Inc. (2019c) MSP430FR235x LaunchPad™ development kit user’s guide, literature number: SLAU680, May 2018. Retrieved from: https://www.ti.com/lit/ug/slau680/slau680.pdf