I am programming the STM32fM4 Discovery board with a Cortex M4F ARM CPU. I have two large tables, which, after the initialization, are just read-only. I would like to place them in Flash memory, to free some RAM.
I tried this :
float sintab[8192] __attribute__((at(0x08010000))); float costab[8192] __attribute__((at(0x08018000)));
but the linker complains with this error message :
Error: L6985E: Unable to automatically place AT section main.o(.ARM.__AT_0x08010000) with required base address 0x08010000. Please manually place in the scatter file using the --no_autoat option.
I am not particularly expert of this compiler/linker, so the above message is not much clear to me. Could please somebody explains how to accomplish what I want ? I don't know what a scatter file is, nor how to code one to relocate in Flash memory my two tables.
Thanks