embedded runtime_error ai_generated true

DMA transfer error: buffer overrun

ID: embedded/dma-buffer-overrun

Also available as: JSON · Markdown
78%Fix Rate
82%Confidence
3Evidence
2023-01-01First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
32 active — — —

Root Cause

DMA writing faster than software can process.

generic

Workarounds

  1. 90% success Use double buffering with DMA half-transfer interrupt
  2. 85% success Ensure DMA priority and FIFO threshold are configured correctly

Dead Ends

Common approaches that don't work:

  1. Increase buffer to huge size 75% fail

    Wastes limited SRAM

  2. Disable DMA and use polling 78% fail

    Misses data at high rates