problems about implemention xgate code runnint out of ram in codewarrior thanks for help!

[jeffzxg]

hello:

     I am using codewarrior v4.6 to compiler code for 9s12xdt256, when create new project for xdt256, I choose multi core(HCS12X  XGATE in ram) option, but I can not find any code in project soure code that perform this copy function.

    In project prm file

PLACEMENT
      XGATE_VECTORS,         

      XGATE_STRING,           

      XGATE_CONST,           
      XGATE_CODE,             

      XGATE_STRING_RAM,      

      XGATE_CONST_RAM,        

      XGATE_CODE_RAM,         

      XGATE_DATA             

                        INTO  RAM_FC /*, RAM_FD */;

END

      if i use #pragma to place xgate code into XGATE_CODE_RAM segment, what should the linker and compiler do, does it automaticly linker some code to perform copy function?

      if I want to run xgate code out of ram, what should i do in codewarrior, do i need to write special function in order to complete this task?

                                                                           thanks!

[CompilerGuru · Accepted solution]

The same hc12 code in start12.c which is coping the values of intialized variables is used to copy the XGATE code into RAM. So you should not have to do anything (except not to remove the HCS12X startup code...).

Daniel