ARM and padding

[jens dot ohlund at secrc dot abb dot se]

Hi !

My problem is the following:
I have an ARM Evaluation Board-1. Rev B. I receive data from a serial line.
this data is placed in a linear buffer, and then i typecast to a struct of some kind.

This data which i receive I cannot control, and have therefore to work with it as is.

The structs contains other structs and so on and in the end it's only 16 or 8 bits values a extract.
BUT these values are not aligned, and when I typecast I get the wrong values, since the buffer is "packed".

How do I tell the compiler that the structs are to be packed ?

I'm developing on NT4, using cygwin and gcc-2.95.2 (arm-elf-gcc).

yours
Jens Ohlund


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