PRC wrote: > What is the protype for the symbol `_ftext', if I want to refer to it in the C program? > Is it `extern unsigned char _ftext[];' ? I think you mean declaration, not prototype. The manual covers this: <http://sourceware.org/binutils/docs-2.18/ld/Source-Code-Reference.html>. In short, you can only ever refer to the variable's address, never its value since it has no value. Whatever type you declare will determine how the compiler does indexing/addressing, but that's completely arbitrary since the linker script is simply assigning an address to a symbol, it's not allocating anything. Whatever data happens to lie at that memory location will be accessed by whatever size type you declare the variable. Brian
