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What is _mem_test actually doing?

Question asked by Nathan Kohler on Dec 14, 2012
Latest reply on Dec 14, 2012 by Martin Kojtal

What is _lwmem_test, _mem_test, _mem_test_all, etc..., actually doing?  Is it testing the RAM for hard/soft errors?  Is it doing something that would actually be comparable to a real RAM test like a GALPAT, walkpat, or march test?  I am using the MCF52259 with MQX.  I have a requirement to implement a RAM test on bootup, and am trying to figure out if this would cover it or if I need something more.