Circular DMA interrupts
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2024-08-21 5:40 AM
I have a project that uses DMA in circular mode, and i've implemented the half and complete interrupts necessary to manage the transfer. I'm using just 2 nodes, and I've noticed that I get a complete interrupt to start the transfer, and then the expected half-complete-half-complete-etc pattern I'd expect. I've definitely enabled the HT interrupt, but i still always see the TC hit first to start the process.
What is that? Is it a nuance of circular mode?
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STM32Cube MCU Packages
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STM32CubeMX
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2025-01-20 5:48 AM
I can also confirm that this is happening, apparently the initial configuration triggers a TC interrupt (STM32U599)

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