Thank you for you reply ,
I did it , in editing the .ld , it worked

Hi, I would like to know how we can create a variable at an absolute address in the binary file, like the definition for ARM compiler: const uint32_t variable __attribute__((at(0x08010000))) = 0X15056687; http://www.keil.com/support/man/docs/armcc/armcc_chr1359124981140.htm I tried with the linker(....