Part Number: TMS570LS3137
Where can I find a linker command file for the TMS570LS3137 that causes code execution to occur from RAM and not Flash?
Hello Steven,
You can copy some objects to SRAM and execute the code from SRAM:
1. To create an output section named test1 which is composed of the input sections inside {... ... }. The test1 is allocated to FLASH0 for loading, and allocated to SRAM0 for running. When the program is loaded, test1 is in the FLASH0 memory range. During running sys_startup.c which runs in FLASH0, it copies output section test1 from FLASH0 to SRAM. Note this copy is not done automatically.
1. allocate the output sections (test1) to flash and SRAM
/*----------------------------------------------------------------------------*/
/* Section Configuration */
SECTIONS
{
.intvecs : {} > VECTORS
test1:
{
sys_main.obj (.text)
sys_selftest.obj (.text)
sys_vim.obj (.text)
system.obj (.text)
pinmux.obj (.text)
esm.obj (.text)
rti.obj (.text)
errata_SSWF021_45.obj (.text)
gio.obj (.text)
sys_core.obj (.text)
sys_pmu.obj (.text)
notification.obj (.text)
} load = FLASH0, run = RAM, LOAD_START(loadStart), RUN_START(runStart), SIZE(codeSize)
.text : {} > FLASH0
.const : {} > FLASH0
.cinit : {} > FLASH0
.pinit : {} > FLASH0
.bss : {} > RAM
.data : {} > RAM
.sysmem : {} > RAM
/* USER CODE BEGIN (4) */
/* USER CODE END */
}
2. Copy the output section test1 to SRAM using _copyAPI2RAM_()
3. Please find the code of _copyAPI2RAM_() in TI CAN bootloader
