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September 1, 2023
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STM32H7: Cache Coherency With DMA — The Errata Chapter Nobody Reads
D-cache on the H7 will silently corrupt your DMA buffers unless you align and flush correctly. Here is exactly where I got burned.
D-cache on the H7 will silently corrupt your DMA buffers unless you align and flush correctly. Here is exactly where I got burned.
Overview
This note is part of the field-notes archive generated for this site. The summary below is the published excerpt; you can expand the full write-up anytime in the CMS.
Series
Part of MCU War Stories (installment 8).
Related notes
Tags
- stm32
- dma
- cache
- cortex-m7
- debugging
M
Manish Bookreader
Electronics enthusiast, Embedded Systems Expert, Linux/Networking programmer, and Software Engineer passionate about AI, electronics, books, and cooking.
