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I'm able to run my application program now (loadaddr = 0x40000 and entry point = 0x40004). Thanks for your previous help.

Now, I encounter another problem. When my program is too large, there is certain part in my program I cannot run, ie. I cannot run certain functions when I call them, and the board hangs. I know I have run out of memory space, so I moved my loadaddr to somewhere else, say 0x00300000. Then I do "go 300004". Although I can run at this new location, I still have the same problem: the board hangs when I call the same function. If I shorten my program a bit, I can run it.

So my question is, how can I enlarge the program space? I've been searching through the codes but no luck.

And one more question, I realize the entry point is always loadaddr + 0x04. Can I change that? If yes, please tell me where to change it.