update stm32f20x linker script: ensure last block HEAP.
@@ -28,8 +28,8 @@ do not initialize { section .noinit };
keep { section FSymTab };
keep { section VSymTab };
+keep { section .rti_fn* };
place at address mem:__ICFEDIT_intvec_start__ { readonly section .intvec };
place in ROM_region { readonly, block RTT_INIT_FUNC };
-place in RAM_region { readwrite,
- block CSTACK, block HEAP };
\ No newline at end of file
+place in RAM_region { readwrite, block CSTACK, last block HEAP};
