Hi,
A customer doesn't want to fuse the code in the last flash page except ccfg.
is it okay to set the flash meomory like below ?
any side effect ?
BLE stack version : simplelink_cc2640r2_sdk_2_40_00_32
define region FLASH = mem:[from FLASH_START to FLASH_END];
// Code and RO Data
//place in FLASH_ALL { readonly };
place in FLASH { readonly };
Hi Aslak,
"fuse" means downloading a firmware(Hex file) on a flash memory.
The intend of the linker file is not to wirte application firmware at the last page of flash.
The customer want that data in SNV area including a bonding info has to be unchanged after OTA. so they just want to updata the application+ BLE stack area.
When the default simple_peripheral project is compiled and downloaded by using CCS, the last page of flash is not written except ccfg area( please see the below). so they was able to upate the new firmware from the address of 0H to just before the SNV.
Due to the lack of flash memory , the customer had to use a IAR compiler. When the simple_peripheral project was compiled with the default linke file and downloaded by using IAR compiler, the last page is written like below.
define region FLASH = mem:[from FLASH_START to FLASH_END];
define region FLASH_ALL = mem:[from FLASH_START to FLASH_END] |
FLASH_LAST_PAGE;
// Code and RO Data
place in FLASH_ALL { readonly };
so they wasn't able to update the new firmware from the 0H to the before SNV. because some of software code were written in the last page of flash.
when using below linker file setting, the customer oberseved that last page was not written.
define region FLASH = mem:[from FLASH_START to FLASH_END];
define region FLASH_ALL = mem:[from FLASH_START to FLASH_END] |
FLASH_LAST_PAGE;
// Code and RO Data
place in FLASH { readonly };
They wants to know if this setting is correct or not.
