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ARM7: Filling Internal RAM of the processor

Avani V

Hi,

I wish to access & modify the contents of the internal RAM of the ARM7. How do I do that. I know that in the assembly file, there is a define statement for the starting of the RAM. But how do I access the contents (in fact the whole memory) from C code?

Thanks in advance,
avani

Parents
  • 0 in reply to Alex Ruiz

    Hi Alex,

    Yaa i thought that I would have to use the assembly level instructions in order to access it. So, I had started to access RAM via LDR, STR instructions. Was a bit skeptic whether it can be done using C level, which I am more used to.

    Thanks a lot for your help,
    Avani

Reply
  • 0 in reply to Alex Ruiz

    Hi Alex,

    Yaa i thought that I would have to use the assembly level instructions in order to access it. So, I had started to access RAM via LDR, STR instructions. Was a bit skeptic whether it can be done using C level, which I am more used to.

    Thanks a lot for your help,
    Avani

Children
  • 0 in reply to Avani V

    Yaa i thought that I would have to use the assembly level instructions in order to access it.

    No, you don't have to. Use pointers, just as Alex said. For information on how pointers work in C, consult your favorite C textbook. Pointers are not specific to ARM, they work on all architectures.