Table of Contents

Overview

This application showcases interrupt preemption and tail-chaining capabilities. Nested interrupts are synthesized when the interrupts have the same priority, increasing priorities, and decreasing priorities. With increasing priorities, preemption will occur; in the other two cases tail-chaining will occur.

 Source Files briefly explained

• pinmux - Pinmux configurations as required by the application.
• main - Main file that showcases Interrupt Preemption capabilities
• uart_if - To display status information over the UART
• systick_if - Setup the systick values and registers SysTick handler

Usage

1. Setup a serial communication application. Open a serial terminal on a PC with the following settings:
   • Port: Enumerated COM port
   • Baud rate: 115200
   • Data: 8 bit
   • Parity: None
   • Stop: 1 bit
   • Flow control: None
2. Run the reference application.
   • Open the project in CCS/IAR. Build the application and debug to load to the device, or flash the binary using UniFlash.

Limitations/Known Issues