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A reply in the twitter thread makes the most sense to me: "Interesting! I can imagine this being used to generate & monitor traffic for factory test." That woul
by mysterydip 7y ago
A reply in the twitter thread makes the most sense to me: "Interesting! I can imagine this being used to generate & monitor traffic for factory test."
That would make verification much easier and also explain why it's undocumented. Of course if there's a way for testers to use it, there's potentially a way for others to use it as well.
- 8K832d7tNmiQ 7y agowhy would you need an 8051 to do an internal testing, though? and why would make it easier to test?
- _nalply 7y agoSpeculating here, but perhaps the 8051 could mock a network with all possible failure cases.
- mysterydip 7y agoI see it like debug statements in code. If the only access you have to a function is from the inputs and returns, it's difficult to see where the issue lies when the return value is wrong. Having an internally accessible layer of I/O lets you bypass certain areas or get values at different steps to determine root cause. Could be useful for firmware testing, fixing ones that fail a normal test, and RMA's. You would want to leave the circuitry in place for production because it's largely unnoticeable and changing it could introduce bugs.