Posted on September 26, 2015 at 08:02 Hi,
After struggling trying to make a Nucleo-F334R8 working with the latest HAL, I reached to the conclusion that the linker script shipped with the HAL is wrong. The memory sections are defined as follow:
/* Highest address of the user mode stack */
_estack =
0x20003FFF; /* end of RAM */
/* Generate a link error if heap and stack don't fit into RAM */
_Min_Heap_Size = 0x200; /* required amount of heap */
_Min_Stack_Size = 0x400; /* required amount of stack */
/* Specify the memory areas */
MEMORY
{
FLASH (rx) : ORIGIN = 0x08000000, LENGTH = 64K
RAM (xrw) : ORIGIN = 0x20000000, LENGTH =
16K
CCMRAM (rw) : ORIGIN = 0x10000000, LENGTH = 4K
}
But this script lead to a BusFault error, as STM32F334R8 has 12KB SRAM + 4KB CCM. So, changing the linker script in the following way solves the problem:
/* Entry Point */
ENTRY(Reset_Handler)
/* Highest address of the user mode stack */
_estack =
0x20003000; /* end of RAM */
/* Generate a link error if heap and stack don't fit into RAM */
_Min_Heap_Size = 0x200; /* required amount of heap */
_Min_Stack_Size = 0x400; /* required amount of stack */
/* Specify the memory areas */
MEMORY
{
FLASH (rx) : ORIGIN = 0x08000000, LENGTH = 64K
RAM (xrw) : ORIGIN = 0x20000000, LENGTH =
12K
CCMRAM (rw) : ORIGIN = 0x10000000, LENGTH = 4K
}
If I'm wrong, please explain me why the second link script works :-)
#stm32f334-nucleo-bus-fault
