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hey guys.
we got this old project and it runs on a 8052 great but we gotta make it work on arm9. we havent got the source yet but we might soon. whats the best way to make the code run on the arm?
Are there any real-time requirements?
Are there documentation?
Many old 8051 projects are quite small and can be rewritten completely in limited time - much time is normally spent figuring out exactly _what_ a program should do. When all that is known, it is much easier to write the same once more.
It would definitely be an advantage if you got yourself working C code to run in a Cortex-Mx processor. Then you would not just get a replacement processor. You would have a program that could be extended to make use of the new advantages that Cortex chip brings.