Simone,

Several things come up from your post: do you KNOW the 8051 architecture and do you KNOW assembly for the 8051?

I you don't know either one, then your project better be really small or you better start doing some serious overtime.

If you are familiar with both, some reasons to choose C include: easier 16-bit and 32-bit math especially floating point and when using math operations beyond add/subtract/multiply/divide. Also, as mentioned by someone else, long programs or complex programs lend themselves to high level languages like C.

In terms of the project, one month is not very long to write a software specification, develop a testing procedure, write the code, review the code, debug it, test it, and document it. I hope it is not a big project!

- Lee