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🐛 [rtl] fix bug in DMA #601

Merged
merged 4 commits into from
Apr 25, 2023
Merged

🐛 [rtl] fix bug in DMA #601

merged 4 commits into from
Apr 25, 2023

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stnolting
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@stnolting stnolting commented Apr 25, 2023

Write data gets corrupted if there are DMA wait states (e.g. if no caches are implemented).
Disabled caches in VUnit testbench to have a test case for this.

(thx @biosbob for finding this bug!)

@stnolting stnolting added bug Something isn't working HW hardware-related labels Apr 25, 2023
@stnolting stnolting self-assigned this Apr 25, 2023
@stnolting stnolting marked this pull request as ready for review April 25, 2023 15:21
🐛 DMA hotfix
@stnolting stnolting merged commit 40234cf into main Apr 25, 2023
@stnolting stnolting deleted the dma_hotfix branch April 25, 2023 15:33
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basic DMA transfer failing on iCEBreaker -- possible bus contention issues
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