CH32 Microcontroller Interrupts: A Comprehensive Introduction
0:05 Introduction: This video focuses on interrupts in the CH32 microcontroller, building upon previous tutorials on GPIO, USART, timers, ADC, and DMA.
0:46 Interrupts vs. Polling: Interrupts offer a more efficient alternative to polling, providing an event-driven approach instead of continuous register checks.
3:48 GPIO Interrupts: Demonstrates how to configure GPIO pins as interrupt sources using a button press example.
15:59 Rotary Encoder with Interrupts: Shows how to use interrupts to read the direction and clicks of a rotary encoder, toggling an LED for visual feedback.
23:54 USART Receive Interrupt: Implements an interrupt-driven USART receive function, reading data from the computer and storing it in a buffer until an endline character is detected.
30:51 Timer Interrupts: Uses a timer to generate periodic interrupts, showcasing LED toggling at a specific interval (1 second).
39:13 Timer-Triggered ADC with Interrupts: Demonstrates how to trigger ADC conversions using timer interrupts, eliminating the need for continuous polling.
47:24 USART Transmit Interrupt: Completes the USART implementation by adding an interrupt-driven transmit function, sending data from a circular buffer to the computer.
59:00 ADC-USART Integration: Combines timer-triggered ADC, USART transmit interrupt, and a circular buffer to achieve efficient data acquisition and transmission.
59:38 Call to Action: Encourages viewers to visit the website for detailed descriptions, parts lists, and channel membership for additional resources.