Tool/software: Code Composer Studio
Hi,
so I have a strange problem.
To get my uP to boot form flash I need to:
1 start the rest of the sistem so CAN communication is running
2 connect power to the uP (does not boot)
3 remove the power
4 reconnect power to the uP (now boots), but I have to not weight to long else it does not boot.
This procedur is 100% repeatable. To run for flash I did all the same things that I did with my previews project.
Link file:
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 = 0x000122, length = 0x0002DE 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 RAMLS1doLS4 : origin = 0x008000, length = 0x002800 RAMGS14 : origin = 0x01A000, length = 0x001000 RAMGS15 : origin = 0x01B000, length = 0x001000 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 = 0x002000 /* on-chip Flash */ FLASHO : origin = 0x0C0000, length = 0x002000 /* on-chip Flash */ FLASHP : origin = 0x0C2000, length = 0x002000 /* on-chip Flash */ FLASHQ : origin = 0x0C4000, length = 0x002000 /* on-chip Flash */ FLASHR : origin = 0x0C6000, length = 0x002000 /* on-chip Flash */ FLASHS : origin = 0x0C8000, length = 0x008000 /* on-chip Flash */ FLASHT : origin = 0x0D0000, length = 0x008000 /* on-chip Flash */ FLASHU : origin = 0x0D8000, length = 0x008000 /* on-chip Flash */ FLASHV : origin = 0x0E0000, length = 0x008000 /* on-chip Flash */ FLASHW : origin = 0x0E8000, length = 0x008000 /* on-chip Flash */ FLASHX : origin = 0x0F0000, length = 0x008000 /* on-chip Flash */ FLASHY : origin = 0x0F8000, length = 0x002000 /* on-chip Flash */ FLASHZ : origin = 0x0FA000, length = 0x002000 /* on-chip Flash */ FLASHAA : origin = 0x0FC000, length = 0x002000 /* on-chip Flash */ FLASHAB : origin = 0x0FE000, length = 0x002000 /* on-chip Flash */ PAGE 1 : /* Data Memory */ /* Memory (RAM/FLASH) blocks can be moved to PAGE0 for program allocation */ BOOT_RSVD : origin = 0x000002, length = 0x000120 /* Part of M0, BOOT rom will use this for stack */ RAMM1 : origin = 0x000400, length = 0x000400 /* on-chip RAM block M1 */ 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 RAMGS3do7 : origin = 0x00F000, length = 0x005000 RAMGS8 : origin = 0x014000, length = 0x001000 RAMGS9 : origin = 0x015000, length = 0x001000 RAMGS10 : origin = 0x016000, length = 0x001000 RAMGS11 : origin = 0x017000, length = 0x001000 RAMGS12 : origin = 0x018000, length = 0x001000 RAMGS13 : origin = 0x019000, length = 0x001000 } SECTIONS { /* Allocate program areas: */ .cinit : > FLASHB PAGE = 0, ALIGN(4) .pinit : > FLASHB, PAGE = 0, ALIGN(4) .text : >> FLASHB | FLASHC | FLASHD | FLASHE PAGE = 0, ALIGN(4) codestart : > BEGIN PAGE = 0, ALIGN(4) #ifdef __TI_COMPILER_VERSION__ #if __TI_COMPILER_VERSION__ >= 15009000 .TI.ramfunc : {} LOAD = FLASHD, RUN = RAMLS1doLS4, LOAD_START(_RamfuncsLoadStart), LOAD_SIZE(_RamfuncsLoadSize), LOAD_END(_RamfuncsLoadEnd), RUN_START(_RamfuncsRunStart), RUN_SIZE(_RamfuncsRunSize), RUN_END(_RamfuncsRunEnd), PAGE = 0, ALIGN(4) #else ramfuncs : LOAD = FLASHD, RUN = RAMLS1doLS4, LOAD_START(_RamfuncsLoadStart), LOAD_SIZE(_RamfuncsLoadSize), LOAD_END(_RamfuncsLoadEnd), RUN_START(_RamfuncsRunStart), RUN_SIZE(_RamfuncsRunSize), RUN_END(_RamfuncsRunEnd), PAGE = 0, ALIGN(4) #endif #endif /* Allocate uninitalized data sections: */ .stack : > RAMM1 PAGE = 1 .ebss : > RAMGS3do7 PAGE = 1 .esysmem : > RAMLS5 PAGE = 1 /* Initalized sections go in Flash */ .econst : >> FLASHF | FLASHG | FLASHH PAGE = 0, ALIGN(4) .switch : > FLASHB PAGE = 0, ALIGN(4) .reset : > RESET, PAGE = 0, TYPE = DSECT /* not used, */ } /* //=========================================================================== // End of file. //=========================================================================== */
Code start branch:
;//########################################################################### ;// ;// FILE: F2837xS_CodeStartBranch.asm ;// ;// TITLE: Branch for redirecting code execution after boot. ;// ;// For these examples, code_start is the first code that is executed after ;// exiting the boot ROM code. ;// ;// The codestart section in the linker cmd file is used to physically place ;// this code at the correct memory location. This section should be placed ;// at the location the BOOT ROM will re-direct the code to. For example, ;// for boot to FLASH this code will be located at 0x3f7ff6. ;// ;// In addition, the example F2837xS projects are setup such that the codegen ;// entry point is also set to the code_start label. This is done by linker ;// option -e in the project build options. When the debugger loads the code, ;// it will automatically set the PC to the "entry point" address indicated by ;// the -e linker option. In this case the debugger is simply assigning the PC, ;// it is not the same as a full reset of the device. ;// ;// The compiler may warn that the entry point for the project is other then ;// _c_init00. _c_init00 is the C environment setup and is run before ;// main() is entered. The code_start code will re-direct the execution ;// to _c_init00 and thus there is no worry and this warning can be ignored. ;// ;//########################################################################### ;// $TI Release: F2837xS Support Library v210 $ ;// $Release Date: Tue Nov 1 15:35:23 CDT 2016 $ ;// $Copyright: Copyright (C) 2014-2016 Texas Instruments Incorporated - ;// http://www.ti.com/ ALL RIGHTS RESERVED $ ;//########################################################################### *********************************************************************** WD_DISABLE .set 0 ;set to 1 to disable WD, else set to 0 .ref _c_int00 .global code_start *********************************************************************** * Function: codestart section * * Description: Branch to code starting point *********************************************************************** .sect "codestart" code_start: .if WD_DISABLE == 1 LB wd_disable ;Branch to watchdog disable code .else LB _c_int00 ;Branch to start of boot._asm in RTS library .endif ;end codestart section *********************************************************************** * Function: wd_disable * * Description: Disables the watchdog timer *********************************************************************** .if WD_DISABLE == 1 .text wd_disable: SETC OBJMODE ;Set OBJMODE for 28x object code EALLOW ;Enable EALLOW protected register access MOVZ DP, #7029h>>6 ;Set data page for WDCR register MOV @7029h, #0068h ;Set WDDIS bit in WDCR to disable WD EDIS ;Disable EALLOW protected register access LB _c_int00 ;Branch to start of boot._asm in RTS library .endif ;end wd_disable .end ;// ;// End of file. ;//
I defined _FLASH to c2000 compiler, predefined Symbols.
I added code_start to c2000 linker, advanced, symbol management specify program entry point:
Any idea where to start looking for the problem?
Best regards,
Marko