CC2538: CC2538SF23 not running in flash memory

I've looked at this forum post and believe it is somewhat similar to the issue I am encountering.

e2e.ti.com/.../694306

Thank you for the quick response.

The version of EWARM I am using includes a Linker file for the 256kB variant. I am overriding the default Linker file with said file. The memory addresses seem to line up. See the code below.

I will look into the version differences in EWARM. 

//*****************************************************************************
//
// Linker configuration file for CC2538.
//
// Copyright (c) 2012-2013 Texas Instruments Incorporated.  All rights reserved.
//
//*****************************************************************************

//
// Define a memory region that covers the entire 4 GB addressible space of the
// processor.
//
define memory mem with size = 4G;

//
// Define a region for the on-chip program code space.
//
define region FLASH = mem:[from 0x00200000 to 0x0023C7FF];

//
// Define a region for the OTA CRC structure.
//
//define region CRC = mem:[from 0x002001EC to 0x002001F3];

//
// Define a region for the OTA Preamble structure.
//
//define region PREAMBLE = mem:[from 0x002001F4 to 0x002001FF];

//
// Define a region for the NVIC table that is 512-byte aligned.
//
//define region INTVEC = mem:[from 0x00200200 to 0x002003FF];

//
// Define a region for the on-chip non-volatile (NV) memory.
//   "HAL_NV_PAGE_CNT" pages of on-chip flash memory (originally 6 pages) are
//   designated for Z-Stack NV items to be stored outside program code space.
//   The size of this region MUST MATCH the size defined by "HAL_NV_PAGE_CNT"
//   in the file: hal_board_cfg.h
//
define region NV_MEM = mem:[from 0x0027C800 to 0x0027F7FF];

//
// Define regions for on-chip factory Commissioning Parameters.
//   One page of on-chip flash memory (originally page 255) is designated
//   for various parameters to be "commissioned" outside program code space.
//
// Key-Establishment "Implicit Certificate 283"
define region CP_IMPC_283 = mem:[from 0x0027FED4 to 0x0027FF1F];
//
// Key-Establishment "Certificate Authority Public Key 283"
define region CP_CAPK_283 = mem:[from 0x0027FF20 to 0x0027FF47];
//
// Key-Establishment "Device Private Key 283"
define region CP_DEPK_283 = mem:[from 0x0027FF48 to 0x0027FF6B];
//
// Key-Establishment "Implicit Certificate"
define region CP_IMPC = mem:[from 0x0027FF6C to 0x0027FF9B];
//
// Key-Establishment "Certificate Authority Public Key"
define region CP_CAPK = mem:[from 0x0027FF9C to 0x0027FFB3];
//
// Key-Establishment "Device Private Key"
define region CP_DEPK = mem:[from 0x0027FFB4 to 0x0027FFCB];
//
// Device's unique 64-bit IEEE address
define region CP_IEEE = mem:[from 0x0027FFCC to 0x0027FFD3];


//
// Define a region for Customer Configuration Area in flash.
define region FLASH_CCA = mem:[from 0x0027FFD4 to 0x0027FFDF];

//
// Define the region for Lock Bits in flash.
define region FLASH_LCK = mem:[from 0x0027FFE0 to 0x0027FFFF];

//
// Define the region for Image Boot Manager (IBM) Ledger Page.
//define region LEDGER_PAGE = mem:[from 0x0027C000 to 0x0027C7FF];

//
// Define the region for Image Boot Manager (IBM)
//define region BOOTLOADER_PAGE = mem:[from 0x0027F800 to 0x0027FD00];

//
// Define a region for the on-chip SRAM.
//
define region SRAM = mem:[from 0x20004000 to 0x20007FFF];

//
// Define a block for the heap.  The size should be set to something other
// than zero if things in the C library that require the heap are used.
//
define block HEAP with alignment = 8, size = 0x00000100 { };

//
// Indicate that the read/write values should be initialized by copying from
// flash.
//
initialize by copy { readwrite };

//
// Indicate that the noinit values should be left alone.  This includes the
// stack, which if initialized will destroy the return address from the
// initialization code, causing the processor to branch to zero and fault.
//
do not initialize { section .noinit };

//
// Place the OTA CRC structure.
//
//place at start of CRC { readonly section .crc };

//
// Place the OTA Preamble structure.
//
//place at start of PREAMBLE { readonly section .preamble };

//
// Place the interrupt vectors.
//
place at start of FLASH { readonly section .intvec };

//
// Place the cca area at the end of flash.
//
place at start of FLASH_CCA { readonly section .cca };

//
// Place the commissioning parameter items.
//
place at start of CP_IEEE { readonly section IEEE_ADDRESS_SPACE };
place at start of CP_DEPK { readonly section DEV_PRIVATE_KEY_ADDRESS_SPACE };
place at start of CP_CAPK { readonly section CA_PUBLIC_KEY_ADDRESS_SPACE };
place at start of CP_IMPC { readonly section IMPLICIT_CERTIFICATE_ADDRESS_SPACE };
place at start of CP_DEPK_283 { readonly section PRIV_KEY_283_ADDRESS_SPACE };
place at start of CP_CAPK_283 { readonly section CA_PUB_KEY_283_ADDRESS_SPACE };
place at start of CP_IMPC_283 { readonly section IMPL_CERT_283_ADDRESS_SPACE };

//
// Place the remainder of the read-only items into flash.
//
place in FLASH { readonly };

//
// Place the RAM vector table at the start of SRAM.
//
place at start of SRAM { section VTABLE };

//
// Place all read/write items into SRAM.
//
place in SRAM { readwrite, block HEAP };

//
// Place the ledger page, if it's defined
//
//place at start of LEDGER_PAGE { section .ledger };
//do not initialize { section .ledger };

//
// Place the bootloader page, if it's defined startup_ewarm
//
//place at start of BOOTLOADER_PAGE { section .bootloader };

Other than revise link script, you also need to revise option->linker->checksum->endAddress to 0x0023FFDF

A diff compare reveals that the only change between the default and your variant is to the FLASH memory region, therefore all values between NV_MEM and BOOTLOADER_PAGE (any define with 0x0027) are invalid.

Regards,
Ryan

YiKai,

I have modified the "Fill unused code memory" to 0x0023FFDF.

Ryan,

I will modify the .icf file according to the datasheet provided by Texas Instruments for the CC2538SF23 and then advise on the issue.

Thank you both.