/*File Name:2837xD_FLASH_lnk_cpu1.cmd*/ MEMORY { PAGE 0 : /* Program Memory */ /* Memory (RAM/FLASH) blocks can be moved to PAGE1 for data allocation */ /* BEGIN is used for the "boot to Flash" bootloader mode */ BEGIN : origin = 0x080000, length = 0x000002 RAMM0 : origin = 0x000123, length = 0x0002DD RAMD0 : origin = 0x00B000, length = 0x000800 RAMLS0 : origin = 0x008000, length = 0x000800 RAMLS1 : origin = 0x008800, length = 0x000800 RAMLS2 : origin = 0x009000, length = 0x000800 RAMLS3 : origin = 0x009800, length = 0x000800 RAMLS4 : origin = 0x00A000, length = 0x000800 RAMGS14 : origin = 0x01A000, length = 0x001000 /* Only Available on F28379D, F28377D, F28375D devices. Remove line on other devices. */ RAMGS15 : origin = 0x01B000, length = 0x000FF8 /* Only Available on F28379D, F28377D, F28375D devices. Remove line on other devices. */ // RAMGS15_RSVD : origin = 0x01BFF8, length = 0x000008 /* Reserve and do not use for code as per the errata advisory "Memory: Prefetching Beyond Valid Memory" */ RESET : origin = 0x3FFFC0, length = 0x000002 /* Flash sectors */ FLASHA : origin = 0x080002, length = 0x001FFE /* on-chip Flash */ FLASHB : origin = 0x082000, length = 0x002000 /* on-chip Flash */ FLASHC : origin = 0x084000, length = 0x002000 /* on-chip Flash */ FLASHD : origin = 0x086000, length = 0x002000 /* on-chip Flash */ FLASHE : origin = 0x088000, length = 0x008000 /* on-chip Flash */ FLASHF : origin = 0x090000, length = 0x008000 /* on-chip Flash */ FLASHG : origin = 0x098000, length = 0x008000 /* on-chip Flash */ FLASHH : origin = 0x0A0000, length = 0x008000 /* on-chip Flash */ FLASHI : origin = 0x0A8000, length = 0x008000 /* on-chip Flash */ FLASHJ : origin = 0x0B0000, length = 0x008000 /* on-chip Flash */ FLASHK : origin = 0x0B8000, length = 0x002000 /* on-chip Flash */ FLASHL : origin = 0x0BA000, length = 0x002000 /* on-chip Flash */ FLASHM : origin = 0x0BC000, length = 0x002000 /* on-chip Flash */ FLASHN : origin = 0x0BE000, length = 0x001FF0 /* on-chip Flash */ // FLASHN_RSVD : origin = 0x0BFFF0, length = 0x000010 /* Reserve and do not use for code as per the errata advisory "Memory: Prefetching Beyond Valid Memory" */ PAGE 1 : /* Data Memory */ /* Memory (RAM/FLASH) blocks can be moved to PAGE0 for program allocation */ BOOT_RSVD : origin = 0x000002, length = 0x000121 /* Part of M0, BOOT rom will use this for stack */ RAMM1 : origin = 0x000400, length = 0x0003F8 /* on-chip RAM block M1 */ // RAMM1_RSVD : origin = 0x0007F8, length = 0x000008 /* Reserve and do not use for code as per the errata advisory "Memory: Prefetching Beyond Valid Memory" */ RAMD1 : origin = 0x00B800, length = 0x000800 RAMLS5 : origin = 0x00A800, length = 0x000800 RAMGS0 : origin = 0x00C000, length = 0x001000 RAMGS1 : origin = 0x00D000, length = 0x001000 RAMGS2 : origin = 0x00E000, length = 0x001000 RAMGS3 : origin = 0x00F000, length = 0x001000 RAMGS4 : origin = 0x010000, length = 0x001000 RAMGS5 : origin = 0x011000, length = 0x001000 RAMGS6 : origin = 0x012000, length = 0x001000 RAMGS7 : origin = 0x013000, length = 0x001000 RAMGS8 : origin = 0x014000, length = 0x001000 RAMGS9 : origin = 0x015000, length = 0x001000 RAMGS10 : origin = 0x016000, length = 0x001000 // RAMGS11 : origin = 0x017000, length = 0x000FF8 /* Uncomment for F28374D, F28376D devices */ // RAMGS11_RSVD : origin = 0x017FF8, length = 0x000008 /* Reserve and do not use for code as per the errata advisory "Memory: Prefetching Beyond Valid Memory" */ RAMGS11 : origin = 0x017000, length = 0x001000 /* Only Available on F28379D, F28377D, F28375D devices. Remove line on other devices. */ RAMGS12 : origin = 0x018000, length = 0x001000 /* Only Available on F28379D, F28377D, F28375D devices. Remove line on other devices. */ RAMGS13 : origin = 0x019000, length = 0x001000 /* Only Available on F28379D, F28377D, F28375D devices. Remove line on other devices. */ CPU2TOCPU1RAM : origin = 0x03F800, length = 0x000400 CPU1TOCPU2RAM : origin = 0x03FC00, length = 0x000400 } SECTIONS { /* Allocate program areas: */ .cinit : > FLASHE PAGE = 0, ALIGN(8)// Flash purpose //.cinit : > FLASHB PAGE = 0, ALIGN(8) //default .text : >> FLASHB | FLASHC | FLASHD | FLASHE PAGE = 0, ALIGN(8) codestart : > BEGIN PAGE = 0, ALIGN(8) /* Allocate uninitalized data sections: */ .stack : > RAMM1 PAGE = 1 .switch : > FLASHB PAGE = 0, ALIGN(8) .reset : > RESET, PAGE = 0, TYPE = DSECT /* not used, */ /* Flash Programming Buffer */ BufferDataSection : > RAMD1, PAGE = 1, ALIGN(8) #if defined(__TI_EABI__) .init_array : > FLASHB, PAGE = 0, ALIGN(8) .bss : > RAMLS5, PAGE = 1 .bss:output : > RAMLS3, PAGE = 0 .bss:cio : > RAMLS5, PAGE = 1 .data : > RAMLS5, PAGE = 1 .sysmem : > RAMLS5, PAGE = 1 /* Initalized sections go in Flash */ .const : > FLASHF, PAGE = 0, ALIGN(8) #else .pinit : > FLASHB, PAGE = 0, ALIGN(8) .ebss : >> RAMLS5 | RAMGS0 | RAMGS1, PAGE = 1 .esysmem : > RAMLS5, PAGE = 1 .cio : > RAMLS5, PAGE = 1 /* Initalized sections go in Flash */ .econst : >> FLASHF PAGE = 0, ALIGN(8) #endif Filter_RegsFile : > RAMGS0, PAGE = 1 SHARERAMGS0 : > RAMGS0, PAGE = 1 SHARERAMGS1 : > RAMGS1, PAGE = 1 SHARERAMGS2 : > RAMGS2, PAGE = 1 ramgs0 : > RAMGS0, PAGE = 1 ramgs1 : > RAMGS1, PAGE = 1 #ifdef __TI_COMPILER_VERSION__ #if __TI_COMPILER_VERSION__ >= 15009000 #if defined(__TI_EABI__) .TI.ramfunc : {} LOAD = FLASHD, RUN = RAMLS0, LOAD_START(RamfuncsLoadStart), LOAD_SIZE(RamfuncsLoadSize), LOAD_END(RamfuncsLoadEnd), RUN_START(RamfuncsRunStart), RUN_SIZE(RamfuncsRunSize), RUN_END(RamfuncsRunEnd), PAGE = 0, ALIGN(8) #else .TI.ramfunc : {} LOAD = FLASHD, RUN = RAMLS0, LOAD_START(_RamfuncsLoadStart), LOAD_SIZE(_RamfuncsLoadSize), LOAD_END(_RamfuncsLoadEnd), RUN_START(_RamfuncsRunStart), RUN_SIZE(_RamfuncsRunSize), RUN_END(_RamfuncsRunEnd), PAGE = 0, ALIGN(8) #endif #else ramfuncs : LOAD = FLASHD, RUN = RAMLS0, LOAD_START(_RamfuncsLoadStart), LOAD_SIZE(_RamfuncsLoadSize), LOAD_END(_RamfuncsLoadEnd), RUN_START(_RamfuncsRunStart), RUN_SIZE(_RamfuncsRunSize), RUN_END(_RamfuncsRunEnd), PAGE = 0, ALIGN(8) #endif #endif /* The following section definitions are required when using the IPC API Drivers */ GROUP : > CPU1TOCPU2RAM, PAGE = 1 { PUTBUFFER PUTWRITEIDX GETREADIDX } GROUP : > CPU2TOCPU1RAM, PAGE = 1 { GETBUFFER : TYPE = DSECT GETWRITEIDX : TYPE = DSECT PUTREADIDX : TYPE = DSECT } /* The following section definition are for SDFM examples */ Filter1_RegsFile : > RAMGS1, PAGE = 1, fill=0x1111 Filter2_RegsFile : > RAMGS2, PAGE = 1, fill=0x2222 Filter3_RegsFile : > RAMGS3, PAGE = 1, fill=0x3333 Filter4_RegsFile : > RAMGS4, PAGE = 1, fill=0x4444 Difference_RegsFile : >RAMGS5, PAGE = 1, fill=0x3333 } /* //=========================================================================== // End of file. //=========================================================================== */
Hi,
So whenever we are writing using available Flash Apis provided in this document https://www.ti.com/lit/ug/spnu629a/spnu629a.pdf?ts=1681972192498&ref_url=https%253A%252F%252Fwww.ti.com%252Fproduct%252FTMS320F28379D, we are writing in each location by checking is the address holding value is 0xFFFFFFFFor not, if found
0xFFFFFFFF then we are writing two words, but when we have iteration of writing , we found this issues as shared in image and we are using Sector J of internal flash and configured same in linker script ( Attached as code snipet). PLease let me know why the reason is happening like this.
Thanks,
Sid C