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why would you need an 8051 to do an internal testing, though? and why would make it easier to test?
by 8K832d7tNmiQ 7y ago
why 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.