Hi
I have a program with DCSM tool activated only on zone 1. at the beginning my program booted from flash and i copied some parts to the ram and everything worked fine.
the demands as changed and i need to run all the program from RAM. the problem is when i use a ram linker file and connect to the debugger, the program wont reach to main.
I noticed that when i exclude the file "dcsm.asm" the program runs with the debugger and everything works fine.
dcsm.asm:
;----------------------------------------------------------------------
; Zone 1
;----------------------------------------------------------------------
.sect "dcsm_otp_z1_linkpointer"
.retain
.long 0x1FFFFFFF
.long 0xFFFFFFFF ;Reserved
.long 0x1FFFFFFF
.long 0xFFFFFFFF ;Reserved
.long 0x1FFFFFFF
.long 0xFFFFFFFF ;Reserved
.sect "dcsm_otp_z1_pswdlock"
.retain
.long 0xFB7FFFFF
.long 0x7FFFFFFF ;Reserved
.sect "dcsm_otp_z1_crclock"
.retain
.long 0x4BFFFFFF
.long 0x3FFFFFFF ;Reserved
;; .sect "dcsm_otp_z1_gpreg"
;; .retain
;; .long 0x5AFF1820 ;Z1OTP_BOOTPIN_CONFIG
;; .long 0x5AFFFFff ;Z1OTP_GPREG2
;; .sect "dcsm_otp_z1_bootctrl"
;; .retain
;; .long 0x00000000 ;Z1OTP_BOOTDEF_LOW
;; .long 0xFFFFFFFF ;Z1OTP_BOOTDEF_HIGH
.sect "dcsm_zsel_z1"
.retain
.long 0x000000F0 ;Z1-EXEONLYRAM
.long 0x0000FFFF ;Z1-EXEONLYSECT
.long 0x0000A600 ;Z1-GRABRAM
.long 0xAAAA96AA ;Z1-GRABSECT
.long 0x12345678
.long 0x47FFFFFF
.long 0x12345678
.long 0xFFFFFFFF
;----------------------------------------------------------------------
; For code security operation,after development has completed, prior to
; production, all other zone select block locations should be programmed
; to 0x0000 for maximum security.
; If the first zone select block at offset 0x10 is used, the section
; "dcsm_rsvd_z1" can be used to program these locations to 0x0000.
; This code is commented out for development.
; .sect "dcsm_rsvd_z1"
; .loop (1e0h)
; .int 0x0000
; .endloop
;----------------------------------------------------------------------
; Zone 2
;----------------------------------------------------------------------
;; .sect "dcsm_otp_z2_linkpointer"
;; .retain
;; .long 0x1FFFFFFF
;; .long 0xFFFFFFFF ;Reserved
;; .long 0x1FFFFFFF
;; .long 0xFFFFFFFF ;Reserved
;; .long 0x1FFFFFFF
;; .long 0xFFFFFFFF ;Reserved
;;
;; .sect "dcsm_otp_z2_pswdlock"
;; .retain
;; .long 0xBF7FFFFF
;; .long 0x77FFFFFF ;Reserved
;;
;; .sect "dcsm_otp_z2_crclock"
;; .retain
;; .long 0x0FFFFFFF
;; .long 0x37FFFFFF ;Reserved
;;
;; .sect "dcsm_otp_z2_gpreg"
;; .retain
;; .long 0x5AFF1820 ;Z2OTP_BOOTPIN_CONFIG
;; .long 0x5AFFFFff ;Z2OTP_GPREG2
;; .sect "dcsm_otp_z2_bootctrl"
;; .retain
;; .long 0x00000000 ;Z2OTP_BOOTDEF_LOW
;; .long 0xFFFFFFFF ;Z2OTP_BOOTDEF_HIGH
;;
;; .sect "dcsm_zsel_z2"
;; .retain
;; .long 0x000000F0 ;z2-EXEONLYRAM
;; .long 0x0000FFFF ;z2-EXEONLYSECT
;; .long 0x0000AA00 ;z2-GRABRAM
;; .long 0xAAAAAAAA ;z2-GRABSECT
;;
;; .long 0xFFFFFFFF
;; .long 0xE3FFFFFF
;; .long 0xFFFFFFFF
;; .long 0xFFFFFFFF
;----------------------------------------------------------------------
; For code security operation,after development has completed, prior to
; production, all other zone select block locations should be programmed
; to 0x0000 for maximum security.
; If the first zone select block at offset 0x10 is used, the section
; "dcsm_rsvd_z2" can be used to program these locations to 0x0000.
; This code is commented out for development.
; .sect "dcsm_rsvd_z2"
; .loop (1e0h)
; .int 0x0000
; .endloop
;----------------------------------------------------------------------
; End of file
;----------------------------------------------------------------------
linker file:
MEMORY
{
BEGIN : origin = 0x000000, length = 0x000002
BOOT_RSVD : origin = 0x00000002, length = 0x00000126
RAMM0 : origin = 0x00000128, length = 0x000002D8
RAMM1 : origin = 0x00000400, length = 0x000003F8 /* on-chip RAM block M1 */
// RAMM1_RSVD : origin = 0x000007F8, length = 0x00000008 /* Reserve and do not use for code as per the errata advisory "Memory: Prefetching Beyond Valid Memory" */
RAMLS4 : origin = 0x0000A000, length = 0x00000800
RAMLS5 : origin = 0x0000A800, length = 0x00000800
RAMLS6 : origin = 0x0000B000, length = 0x00000800
RAMLS7 : origin = 0x0000B800, length = 0x00000800
/* Combining all the LS RAMs */
//RAMLS4567 : origin = 0x0000A000, length = 0x00002000
RAMGS0 : origin = 0x0000C000, length = 0x000007F8
// RAMGS0_RSVD : origin = 0x0000C7F8, length = 0x00000008 /* Reserve and do not use for code as per the errata advisory "Memory: Prefetching Beyond Valid Memory" */
RESET : origin = 0x003FFFC0, length = 0x00000002
// FLASHBANK1 : origin = 0x00080000, length = 0x00010000
/* Flash sectors */
/* BANK 0 */
FLASH_BANK0_SEC0 : origin = 0x080002, length = 0x000FFE
FLASH_BANK0_SEC1 : origin = 0x081000, length = 0x001000
FLASH_BANK0_SEC2 : origin = 0x082000, length = 0x001000
FLASH_BANK0_SEC3 : origin = 0x083000, length = 0x001000
FLASH_BANK0_SEC4 : origin = 0x084000, length = 0x001000
FLASH_BANK0_SEC5 : origin = 0x085000, length = 0x001000
FLASH_BANK0_SEC6 : origin = 0x086000, length = 0x001000
FLASH_BANK0_SEC7 : origin = 0x087000, length = 0x001000
FLASH_BANK0_SEC8 : origin = 0x088000, length = 0x001000
FLASH_BANK0_SEC9 : origin = 0x089000, length = 0x001000
FLASH_BANK0_SEC10 : origin = 0x08A000, length = 0x001000
FLASH_BANK0_SEC11 : origin = 0x08B000, length = 0x001000
FLASH_BANK0_SEC12 : origin = 0x08C000, length = 0x001000
FLASH_BANK0_SEC13 : origin = 0x08D000, length = 0x001000
FLASH_BANK0_SEC14 : origin = 0x08E000, length = 0x001000
FLASH_BANK0_SEC15 : origin = 0x08F000, length = 0x000FF8
// FLASH_BANK0_SEC15_RSVD : origin = 0x08FFF0, length = 0x000010 /* Reserve and do not use for code as per the errata advisory "Memory: Prefetching Beyond Valid Memory" */
BOOTROM : origin = 0x003F0000, length = 0x00008000
BOOTROM_EXT : origin = 0x003F8000, length = 0x00007FC0
PAGE 0 : /* Program Memory */
/* Z1 OTP. LinkPointers */
DCSM_OTP_Z1_LINKPOINTER : origin = 0x78000, length = 0x00000C
/* Z1 OTP. GPREG1/GPREG2 */
DCSM_OTP_Z1_GPREG : origin = 0x7800C, length = 0x000004
/* Z1 OTP. PSWDLOCK/RESERVED */
DCSM_OTP_Z1_PSWDLOCK : origin = 0x78010, length = 0x000004
/* Z1 OTP. CRCLOCK/RESERVED */
DCSM_OTP_Z1_CRCLOCK : origin = 0x78014, length = 0x000004
/* Z1 OTP. RESERVED/BOOTCTRL */
DCSM_OTP_Z1_BOOTCTRL : origin = 0x7801C, length = 0x000004
/* DCSM Z1 Zone Select Contents (!!Movable!!) */
/* Z1 OTP. Z1 password locations / Flash and RAM partitioning */
DCSM_ZSEL_Z1_P0 : origin = 0x78020, length = 0x000010
/* Z2 OTP. LinkPointers */
DCSM_OTP_Z2_LINKPOINTER : origin = 0x78200, length = 0x00000C
/* Z2 OTP. GPREG1/GPREG2 */
DCSM_OTP_Z2_GPREG : origin = 0x7820C, length = 0x000004
/* Z2 OTP. PSWDLOCK/RESERVED */
DCSM_OTP_Z2_PSWDLOCK : origin = 0x78210, length = 0x000004
/* Z2 OTP. CRCLOCK/RESERVED */
DCSM_OTP_Z2_CRCLOCK : origin = 0x78214, length = 0x000004
/* Z2 OTP. GPREG3/BOOTCTRL */
DCSM_OTP_Z2_BOOTCTRL : origin = 0x7821C, length = 0x000004
/* DCSM Z2 Zone Select Contents (!!Movable!!) */
/* Z2 OTP. Z2 password locations / Flash and RAM partitioning */
DCSM_ZSEL_Z2_P0 : origin = 0x78220, length = 0x000010
}
SECTIONS
{
.text : >> RAMLS4 | RAMLS6 | RAMLS7 | RAMGS0
.TI.ramfunc : > RAMM0
.cinit : > RAMM0
.switch : > RAMM0
.reset : > RESET, TYPE = DSECT /* not used, */
.cio : > RAMGS0
codestart : > BEGIN
.stack : > RAMM1
#if defined(__TI_EABI__)
.bss : > RAMLS4 | RAMLS6 | RAMLS7
.bss:output : > RAMLS4 | RAMLS6 | RAMLS7
.init_array : > RAMM0
.const : > RAMGS0
.data : > RAMLS4 | RAMLS6 | RAMLS7 | RAMGS0
.sysmem : > RAMLS4 | RAMLS6 | RAMLS7
#else
.pinit : > RAMM0
.ebss : > RAMLS4 | RAMLS6 | RAMLS7
.econst : > RAMGS0
.esysmem : > RAMLS4 | RAMLS6 | RAMLS7
#endif
ramgs0 : > RAMGS0
/* Allocate IQ math areas: */
IQmath : > RAMLS4 | RAMLS6 | RAMLS7 | RAMGS0
IQmathTables : > RAMLS4 | RAMLS6 | RAMLS7 | RAMGS0
dcsm_otp_z1_linkpointer : > DCSM_OTP_Z1_LINKPOINTER PAGE = 0
dcsm_otp_z1_gpreg : > DCSM_OTP_Z1_GPREG PAGE = 0, type = DSECT
dcsm_otp_z1_pswdlock : > DCSM_OTP_Z1_PSWDLOCK PAGE = 0
dcsm_otp_z1_crclock : > DCSM_OTP_Z1_CRCLOCK PAGE = 0
dcsm_otp_z1_bootctrl : > DCSM_OTP_Z1_BOOTCTRL PAGE = 0, type = DSECT
dcsm_zsel_z1 : > DCSM_ZSEL_Z1_P0 PAGE = 0
dcsm_otp_z2_linkpointer : > DCSM_OTP_Z2_LINKPOINTER PAGE = 0, type = DSECT
dcsm_otp_z2_gpreg : > DCSM_OTP_Z2_GPREG PAGE = 0, type = DSECT
dcsm_otp_z2_pswdlock : > DCSM_OTP_Z2_PSWDLOCK PAGE = 0, type = DSECT
dcsm_otp_z2_crclock : > DCSM_OTP_Z2_CRCLOCK PAGE = 0, type = DSECT
dcsm_otp_z2_bootctrl : > DCSM_OTP_Z2_BOOTCTRL PAGE = 0, type = DSECT
dcsm_zsel_z2 : > DCSM_ZSEL_Z2_P0 PAGE = 0, type = DSECT
}
/*
//===========================================================================
// End of file.
//===========================================================================
*/
you can see in the linker file that i don't use RAMLS5 (the secure ram in zone1) for now. when i will finish i will copy the necessary sections to there.
when "dcsm.asm" is included (which should be) the debugger get stuck somewhere (address 0x0000C057).
what could be the problem?
Thanks
Yoav