交叉编译到嵌入式系统

Question

I'm new in embedded systems development. I just want to compile some C code for this system:

 uname -mrs
 Linux 2.6.32.28_stm24_0207 sh4
 machine         : STb7100 Reference board
 processor       : 0
 cpu family      : sh4
 cpu type        : STx7100
 cut             : 3.x
 cpu flags       : fpu
 cache type      : split (harvard)
 icache size     : 16KiB (2-way)
 dcache size     : 32KiB (2-way)
 address sizes   : 29 bits physical
 bogomips        : 264.19

Can anybody tell me the steps how to accomplish C compilation on my PC (Ubuntu) with GCC for that kind of system. I just need a little guidance.

Answer 1

A quick google search indicates that chip has an ST40 cpu core. Another google search turned up this link which has all of the instructions you need.

Answer 2

Building a cross compiler is not trivial. Having said that, should you march down that path at the end you will know a lot more about how the gcc compiler really works, there are, very likely, a bunch of things you don't know that you don't know here. Then again, @Carl Norum has the easier path. Bottom line, the former path is more rewarding, the latter is easier :-)

Answer 3

You need a cross compiler so you can compile your app in your pc and download it to the device, the one suitable for that processor, for example the one for this : http://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=3&cad=rja&ved=0CD4QFjAC&url=http%3A%2F%2Fwww.avi-plus.com%2Fdownload%2FSTb7100MB.pdf&ei=DIbyUbXZGYay9gTB_4GYDg&usg=AFQjCNHaAj1_zgFosaQPmP1htiz9e6KGCw&sig2=TCVzRlWfaqcvyAjyU1jjsw&bvm=bv.49784469,d.eWU is Altera VHDL Compiler. After that you could need some kind of sdk.