Define a value in particular address in RAM but it needs to be in the .bss list

JimMcP — Fri, 13 Apr 2007 23:39:06 GMT

I need to define a value in RAM. This value is uninitialized and needs to be in the .bss list (battery backed up). Using the following syntax it is alway intialized,,,

// LCF file

   bootSec (RWX) : ORIGIN = 0x20007FF0, LENGTH = 0x00000008
.........

   .myData :
   {
      *(.myData)
   } > bootSec

// main.c file

#pragma push
#pragma define_section myData ".myData" far_absolute RW
#pragma pop
__declspec(myData) long flash_process;

///////////////////////

I need it to be defined in the .bss list at the particular ram location 0x20007FF0

Thank you in advance..

Re: Define a value in particular address in RAM but it needs to be in the .bss list

CrasyCat — Mon, 23 Apr 2007 17:44:51 GMT

Hello

Variables defined in .bss section are initialized with 0 at startup.

If you want to define persistent variables with CodeWarrior for MPC, look at FAQ 27500.

You can find it at following URL:

http://www.freescale.com/webapp/sps/utils/SingleFaq.jsp?FAQ-27500.xml

CrasyCat

topic Define a value in particular address in RAM but it needs to be in the .bss list in ColdFire/68K Microcontrollers and Processors

Define a value in particular address in RAM but it needs to be in the .bss list

Re: Define a value in particular address in RAM but it needs to be in the .bss list