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How to write and read the data from RAM

Hi friends,

I am using AT91SAM7SE512 micro controller.
I am working in a safety project.
I want to test the Internal RAM data,
before starting the process i want to check(self test)the Internal RAM memory.

For this i am following the "GALPAT test"(given by EN61508 standard).

My doubt is "how to read and write the RAM memory?"

I have go through the RAM_function and some other examples.But i couldn't get the clear idea.

Please help me on this topic.

With regards,

Murthy.R