Getting Started with TI-RTOS: Chapter 9—using semaphores (Hwi)

In this video, Eric Wilbur and Scott Specker of Embedded Advantage describe the objectives, agenda, and lab goals for Chapter 9 of the Getting Started with TI-RTOS workshop. 

Chapter 9 covers these topics and answers these questions:

Where Semaphores Fit In

• What is a semaphore in TI-RTOS?
• How is a semaphore used in TI-RTOS?

How PEND and POST Work

• How does Semaphore_pend() work in TI-RTOS? BIOS? SYS/BIOS?
• How does Semaphroe_post() work in TI-RTOS? BIOS? SYS/BIOS? TI-RTOS kernel?

Object Creation

• How do you create a semaphore statically using .cfg file? 
• How do you create a semaphore dynamically?
• What is a binary semaphore? What is a counting semaphore?

Lab 9 – Using Semaphores

• How do I program semaphores coming from an HWI to unblock a Task?
• How does Semaphore_create() work?
• How do HWIs work?
• How do you use TI Drivers and callback functions with TI Simplelink MCUs?

Advanced Topic – Semaphore Modes

• What is a FIFO semaphore?
• What is a priority-based semaphore?
• Compare/contrast FIFO vs. priority-based semaphores