AM2612: Some more Advanced questions for AM26

Rio Chan said:

Q2. The Inturtup is Level trigger of the signal?

      And how to set the interrupt as Edge Trigger? (High or Low Edge).

The AM261x microcontroller supports both edge-triggered and level-triggered interrupts, providing flexible interrupt configuration options for different peripherals and use cases 

Interrupt Type Configuration

Hardware Interrupt (HwiP) Configuration

For ARM R5 cores on the AM261x, interrupts can be configured as either level or pulse (edge) interrupts using the HwiP_Params structure [2]. The isPulse parameter controls this behavior:

• 0: Maps interrupt as a level interrupt
• 1: Maps interrupt as a pulse interrupt (edge-triggered)

This configuration is specifically applicable to ARM R5 and ARM M4 processors [2].

Vectored Interrupt Manager (VIM)

The VIM module provides hardware assistance for prioritizing and controlling interrupt sources [3]. Each source interrupt is defined as either:

• Active high level (SDL_VIM_INTR_TYPE_LEVEL = 0)
• Active high pulse (edge-triggered)

The VIM supports up to 256 interrupt channels with programmable priority and masks [4].

dev.ti.com/.../OPTIMIZING_APPLICATIONS_WITH_MCU_SDK.html