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by robryk
3544 days ago
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IIRC TESTSET is usable: IIRC it just sends a message that causes that to happen, but you don't learn if the test succeeded. I was talking about the DMA mode in which every write to special register (that may be coming from a different core) gets "redirected" to subsequent byte of the DMA target region. This can work as a queue with multiple enqueuers, but has bounded size (after the size is exhausted, messages get lost) and operates on single byte messages. |
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